diff --git a/src/ChartJs-Core-Tests/Chart1dDataTest.class.st b/src/ChartJs-Core-Tests/Chart1dDataTest.class.st
deleted file mode 100644
index 73f0fe1..0000000
--- a/src/ChartJs-Core-Tests/Chart1dDataTest.class.st
+++ /dev/null
@@ -1,30 +0,0 @@
-"
-A Chart1dDataTest is a test class for testing the behavior of Chart1dData
-"
-Class {
-	#name : #Chart1dDataTest,
-	#superclass : #ChartDataAbstractTest,
-	#category : #'ChartJs-Core-Tests'
-}
-
-{ #category : #helpers }
-Chart1dDataTest >> actualClass [
-	^ Chart1dData
-]
-
-{ #category : #tests }
-Chart1dDataTest >> testHasData [
-	| datas |
-	datas := self actualClass
-		values:
-			{('Eating' -> 80).
-			('Drinking' -> 100).
-			('Sleeping' -> 70).
-			('Designing' -> 50).
-			('Coding' -> 40).
-			('Cycling' -> 10).
-			('Running' -> 25)}.
-	self assert: datas hasData.
-	datas := self actualClass values: {}.
-	self deny: datas hasData
-]
diff --git a/src/ChartJs-Core-Tests/Chart2dDataTest.class.st b/src/ChartJs-Core-Tests/ChartDataTest.class.st
similarity index 83%
rename from src/ChartJs-Core-Tests/Chart2dDataTest.class.st
rename to src/ChartJs-Core-Tests/ChartDataTest.class.st
index 9133e2a..67032aa 100644
--- a/src/ChartJs-Core-Tests/Chart2dDataTest.class.st
+++ b/src/ChartJs-Core-Tests/ChartDataTest.class.st
@@ -2,18 +2,18 @@
 A Chart2dDataTest is a test class for testing the behavior of Chart2dData
 "
 Class {
-	#name : #Chart2dDataTest,
+	#name : #ChartDataTest,
 	#superclass : #ChartDataAbstractTest,
 	#category : #'ChartJs-Core-Tests'
 }
 
 { #category : #helpers }
-Chart2dDataTest >> actualClass [
-	^ Chart2dData
+ChartDataTest >> actualClass [
+	^ ChartData
 ]
 
 { #category : #tests }
-Chart2dDataTest >> testHasData [
+ChartDataTest >> testHasData [
 	| datas |
 	datas := self actualClass
 		xObjects: {'Eating' . 'Drinking' . 'Sleeping' . 'Designing' . 'Coding' . 'Cycling' . 'Running'}
diff --git a/src/ChartJs-Core-Tests/ChartTypeTest.class.st b/src/ChartJs-Core-Tests/ChartTypeTest.class.st
new file mode 100644
index 0000000..741540a
--- /dev/null
+++ b/src/ChartJs-Core-Tests/ChartTypeTest.class.st
@@ -0,0 +1,40 @@
+Class {
+	#name : #ChartTypeTest,
+	#superclass : #TestCase,
+	#category : #'ChartJs-Core-Tests'
+}
+
+{ #category : #tests }
+ChartTypeTest >> testNeoJsonOnData [
+	| json chart stream colorConst |
+	chart := ChartData
+		xObjects: {'Eating' . 'Drinking'}
+		multiYObjects: {('Cyril' -> #(28 48))}.
+	chart dataSets
+		do: [ :ds | 
+			ds styleSheet pointHoverBackgroundColor: Color red.
+			ds styleSheet pointBackgroundColor: Color red.
+			ds styleSheet fillColor: Color red.
+			ds styleSheet borderColor: Color red.
+			ds styleSheet pointHoverBorderColor: Color red.
+			ds styleSheet pointBorderColor: Color red.
+			ds styleSheet backgroundColor: Color red ].
+	stream := '' writeStream.
+	json := (NeoJSONWriter on: stream) nextPut: chart.
+	colorConst := '"fill":false,"pointBackgroundColor":"rgba(255,0,0,1.0)","pointBorderColor":"rgba(255,0,0,1.0)","borderColor":"rgba(255,0,0,1.0)","pointHoverBorderColor":"rgba(255,0,0,1.0)","backgroundColor":"rgba(255,0,0,1.0)"'.
+	self
+		assert: stream contents
+		equals:
+			'{"labels":["Eating","Drinking"],"datasets":[{' , colorConst
+				, ',"label":"Cyril","data":[28,48]}]}'
+]
+
+{ #category : #tests }
+ChartTypeTest >> testNeoJsonOnOnlyType [
+	| json chart stream |
+	chart := ChartBar new.
+	stream := '' writeStream.
+	json := (NeoJSONWriter on: stream) nextPut: chart.
+	
+	self assert: stream contents equals: '{"type":"bar"}'
+]
diff --git a/src/ChartJs-Core/Boolean.extension.st b/src/ChartJs-Core/Boolean.extension.st
new file mode 100644
index 0000000..2f6fc7b
--- /dev/null
+++ b/src/ChartJs-Core/Boolean.extension.st
@@ -0,0 +1,6 @@
+Extension { #name : #Boolean }
+
+{ #category : #'*ChartJs-Core' }
+Boolean >> forChartJs [
+	
+]
diff --git a/src/ChartJs-Core/Chart1dData.class.st b/src/ChartJs-Core/Chart1dData.class.st
deleted file mode 100644
index 94b289f..0000000
--- a/src/ChartJs-Core/Chart1dData.class.st
+++ /dev/null
@@ -1,86 +0,0 @@
-"
-I am a one dimension representation of data for graph like Pie, Donut and Polar that present values with label.
-"
-Class {
-	#name : #Chart1dData,
-	#superclass : #ChartDataAbstract,
-	#instVars : [
-		'datas'
-	],
-	#category : #'ChartJs-Core-Model'
-}
-
-{ #category : #'instance-creation' }
-Chart1dData class >> dictionary: aDictionary [
-	^ self values: aDictionary associations 
-]
-
-{ #category : #'instance-creation' }
-Chart1dData class >> dictionary: aDictionary valueDisplayBlock: aBlockOrSymbol [
-	^ (self dictionary: aDictionary)
-		valueDisplayBlock: aBlockOrSymbol;
-		yourself
-]
-
-{ #category : #'instance-creation' }
-Chart1dData class >> values: aCollectionOfAssociations [
-	^ self new
-		datas: (aCollectionOfAssociations collect: [ :asso | ChartDataValue value: asso value name: asso key ]);
-		yourself
-]
-
-{ #category : #'instance-creation' }
-Chart1dData class >> values: aCollectionOfAssociations valueDisplayBlock: aBlockOrSymbol [
-	^ (self values: aCollectionOfAssociations)
-		valueDisplayBlock: aBlockOrSymbol;
-		yourself
-]
-
-{ #category : #callback }
-Chart1dData >> at: anInteger ifPresent: aBlockClosure [
-	^ aBlockClosure value: (self datas at: anInteger) name -> (self datas at: anInteger) value
-]
-
-{ #category : #chartType }
-Chart1dData >> chartType: aChartType [
-	self assert: aChartType isFor1DValues description: 'Chart accepted: Donut, Pie and Polar'.
-	super chartType: aChartType
-]
-
-{ #category : #accessing }
-Chart1dData >> datas [
-	^ datas
-]
-
-{ #category : #accessing }
-Chart1dData >> datas: anObject [
-	datas := anObject asArray
-]
-
-{ #category : #testing }
-Chart1dData >> hasData [
-	^ self datas isNotEmpty
-]
-
-{ #category : #testing }
-Chart1dData >> hasLegend [
-	^ true
-]
-
-{ #category : #initialization }
-Chart1dData >> initialize [
-	super initialize.
-	self chartType: ChartPie
-]
-
-{ #category : #ChartJs }
-Chart1dData >> neoJsonOn: writer [
-	writer writeListStreamingDo: [ :jsonListWriter |
-		self datas do: [ :each | each forChartJS: writer displayBlock: self valueDisplayBlock] separatedBy: [ writer listElementSeparator ] ]
-]
-
-{ #category : #accessing }
-Chart1dData >> title [
-
-	^ title isBlock ifTrue: [ title value: self datas ] ifFalse: [ title ]
-]
diff --git a/src/ChartJs-Core/Chart2dData.class.st b/src/ChartJs-Core/Chart2dData.class.st
deleted file mode 100644
index 85cf950..0000000
--- a/src/ChartJs-Core/Chart2dData.class.st
+++ /dev/null
@@ -1,154 +0,0 @@
-"
-I am a chartData that you can provide to any graph. I have a list of xPoints to present and a collection of CharDataSets that defines positions for this xPoints.
-
-I will be used for line, bar, radar and boxplot graph
-"
-Class {
-	#name : #Chart2dData,
-	#superclass : #ChartDataAbstract,
-	#instVars : [
-		'xObjects',
-		'dataSets',
-		'keyDisplayBlock'
-	],
-	#category : #'ChartJs-Core-Model'
-}
-
-{ #category : #'instance-creation' }
-Chart2dData class >> xObjects: aCollectionOfObjects function: aBlock [
-	^ self new
-		xObjects: aCollectionOfObjects;
-		dataSets: {(ChartDataSetFunction function: aBlock)};
-		yourself
-]
-
-{ #category : #'instance creation' }
-Chart2dData class >> xObjects: aCollectionOfObjects function: aBlockClosure color: aColor [ 
-	^ self new
-		xObjects: aCollectionOfObjects;
-		dataSets: {(ChartDataSetFunction function: aBlockClosure color: aColor)};
-		yourself
-]
-
-{ #category : #'instance-creation' }
-Chart2dData class >> xObjects: aCollectionOfObjects multiYObjects: aCollectionOfSequenceableCollectionOfObjectsToMap [
-	^ self new
-		xObjects: aCollectionOfObjects;
-		dataSets:
-				(aCollectionOfSequenceableCollectionOfObjectsToMap
-						collect: [ :anAssociation | ChartDataSetSequence name: anAssociation key sequence: anAssociation value ]);
-		yourself
-]
-
-{ #category : #'instance-creation' }
-Chart2dData class >> xObjects: aCollectionOfObjects yObjects: aSequenceableCollectionOfObjectsToMap [
-	^ self new
-		xObjects: aCollectionOfObjects;
-		dataSets: {(ChartDataSetSequence sequence: aSequenceableCollectionOfObjectsToMap)};
-		yourself
-]
-
-{ #category : #'as yet unclassified' }
-Chart2dData >> addFunction: aFunctionBlock color: aColor [
-	self dataSets addLast: (ChartDataSetFunction function: aFunctionBlock color: aColor)
-]
-
-{ #category : #callback }
-Chart2dData >> at: anIndex ifPresent: aBlockClosure [
-	^ aBlockClosure
-		value: (self xObjects at: anIndex) -> (self dataSets first atIndex: anIndex forValue: (self xObjects at: anIndex))
-]
-
-{ #category : #exchange }
-Chart2dData >> callBackValues [
-	^ self dataSets first sequence
-]
-
-{ #category : #chartType }
-Chart2dData >> chartType: aChartType [
-	self assert: aChartType isMultiDataSet description: 'Chart accepted: Bar, Line, BoxPlot and Radar'.
-	super chartType: aChartType
-]
-
-{ #category : #accessing }
-Chart2dData >> dataSets [
-	^ dataSets
-]
-
-{ #category : #accessing }
-Chart2dData >> dataSets: anObject [
-	dataSets := anObject asOrderedCollection
-]
-
-{ #category : #colors }
-Chart2dData >> dataSetsColors: aCollectionOfColors [
-	self
-		assert: aCollectionOfColors size = self dataSets size
-		description: 'The provided collection of colors must have one color per dataset'.
-	self dataSets doWithIndex: [ :aDataSet :anIndex | aDataSet color: (aCollectionOfColors at: anIndex) ]
-]
-
-{ #category : #presentation }
-Chart2dData >> displayKeysAsPercent [
-	self keyDisplayBlock: [ :percent | (percent * 100) rounded asString, '%' ]
-]
-
-{ #category : #testing }
-Chart2dData >> hasData [
-	^ self xObjects isNotEmpty
-]
-
-{ #category : #testing }
-Chart2dData >> hasLegend [
-	^ self dataSets anySatisfy: #hasName
-]
-
-{ #category : #initialization }
-Chart2dData >> initialize [
-	super initialize.
-	self chartType: ChartLine
-]
-
-{ #category : #accessing }
-Chart2dData >> keyDisplayBlock [
-	^ keyDisplayBlock ifNil: [ #yourself ]
-]
-
-{ #category : #accessing }
-Chart2dData >> keyDisplayBlock: anObject [
-	keyDisplayBlock := anObject
-]
-
-{ #category : #presentation }
-Chart2dData >> labelFor: aString [ 
-	^ (self keyDisplayBlock value: aString)
-]
-
-{ #category : #exchange }
-Chart2dData >> neoJsonOn: writer [
-	writer
-		writeMapStreamingDo: [ :jsonMapWriter | 
-			jsonMapWriter writeKey: #labels value: (xObjects collect: [ :aXObject | self labelFor: aXObject ]).
-			self chartType isMultiDataSet
-				ifTrue: [ 
-					jsonMapWriter
-						writeKey: #datasets
-						value: (self dataSets collect: [ :aDataSet | aDataSet neoJsonObjectFor: self xObjects block: self valueDisplayBlock ]) ]
-				ifFalse: [ self error: 'Not supported graph type' ] ]
-]
-
-{ #category : #accessing }
-Chart2dData >> title [
-
-	^ title isBlock ifTrue: [ title value: self dataSets ] ifFalse: [ title ]
-]
-
-{ #category : #accessing }
-Chart2dData >> xObjects [
-	^ xObjects
-]
-
-{ #category : #accessing }
-Chart2dData >> xObjects: anObject [
-	xObjects := anObject
-]
diff --git a/src/ChartJs-Core/ChartBar.class.st b/src/ChartJs-Core/ChartBar.class.st
index fda7d81..bf5ce9b 100644
--- a/src/ChartJs-Core/ChartBar.class.st
+++ b/src/ChartJs-Core/ChartBar.class.st
@@ -12,14 +12,9 @@ ChartBar class >> dataFunction [
 	^ 'bars'
 ]
 
-{ #category : #ChartJs }
-ChartBar class >> eventsCode [
-	^ 'getBarsAtEvent(evt)'
-]
-
 { #category : #ChartJs }
 ChartBar class >> forChartJS [
-	^ 'Bar'
+	^ 'bar'
 ]
 
 { #category : #testing }
diff --git a/src/ChartJs-Core/ChartBoxPlot.class.st b/src/ChartJs-Core/ChartBoxPlot.class.st
index 8ca95b6..179acdc 100644
--- a/src/ChartJs-Core/ChartBoxPlot.class.st
+++ b/src/ChartJs-Core/ChartBoxPlot.class.st
@@ -12,14 +12,9 @@ ChartBoxPlot class >> dataFunction [
 	^ 'bars'
 ]
 
-{ #category : #ChartJs }
-ChartBoxPlot class >> eventsCode [
-	^ 'getBarsAtEvent(evt)'
-]
-
 { #category : #ChartJs }
 ChartBoxPlot class >> forChartJS [
-	^ 'BoxPlot'
+	^ 'boxplot'
 ]
 
 { #category : #testing }
diff --git a/src/ChartJs-Core/ChartData.class.st b/src/ChartJs-Core/ChartData.class.st
new file mode 100644
index 0000000..1abd2a1
--- /dev/null
+++ b/src/ChartJs-Core/ChartData.class.st
@@ -0,0 +1,208 @@
+"
+I am the abstract class for chart data; defining the charttype to represent me, title and style
+"
+Class {
+	#name : #ChartData,
+	#superclass : #Object,
+	#instVars : [
+		'styleSheet',
+		'title',
+		'valueDisplayBlock',
+		'singleValueTooltip',
+		'multiValueTooltip',
+		'xObjects',
+		'dataSets',
+		'keyDisplayBlock',
+		'colors'
+	],
+	#category : #'ChartJs-Core-Model'
+}
+
+{ #category : #'instance-creation' }
+ChartData class >> xObjects: aCollectionOfObjects function: aBlock [
+	^ self new
+		xObjects: aCollectionOfObjects;
+		dataSets: {(ChartDataSetFunction function: aBlock)};
+		yourself
+]
+
+{ #category : #'instance-creation' }
+ChartData class >> xObjects: aCollectionOfObjects function: aBlockClosure color: aColor [ 
+	^ self new
+		xObjects: aCollectionOfObjects;
+		dataSets: {(ChartDataSetFunction function: aBlockClosure color: aColor)};
+		yourself
+]
+
+{ #category : #'instance-creation' }
+ChartData class >> xObjects: aCollectionOfObjects multiYObjects: aCollectionOfSequenceableCollectionOfObjectsToMap [
+	^ self new
+		xObjects: aCollectionOfObjects;
+		dataSets:
+				(aCollectionOfSequenceableCollectionOfObjectsToMap
+						collect: [ :anAssociation | ChartDataSetSequence name: anAssociation key sequence: anAssociation value ]);
+		yourself
+]
+
+{ #category : #'instance-creation' }
+ChartData class >> xObjects: aCollectionOfObjects yObjects: aSequenceableCollectionOfObjectsToMap [
+	^ self new
+		xObjects: aCollectionOfObjects;
+		dataSets: {(ChartDataSetSequence sequence: aSequenceableCollectionOfObjectsToMap)};
+		yourself
+]
+
+{ #category : #tooltip }
+ChartData >> adaptToolTip: aToolTipString [
+	^ (Array with: '<label>' -> '<%= datasetLabel %>' with: '<value>' -> '<%= value %>' with: '<key>' -> '<%= label %>')
+		inject: aToolTipString
+		into: [ :tooltip :asso | tooltip copyReplaceAll: asso key with: asso value ]
+]
+
+{ #category : #callback }
+ChartData >> at: anIndex ifPresent: aBlockClosure [
+	^ aBlockClosure
+		value: (self xObjects at: anIndex) -> (self dataSets first atIndex: anIndex forValue: (self xObjects at: anIndex))
+]
+
+{ #category : #exchange }
+ChartData >> callBackValues [
+	^ self dataSets first sequence
+]
+
+{ #category : #chartType }
+ChartData >> chartType [
+	^ self styleSheet chartType
+]
+
+{ #category : #initialization }
+ChartData >> chartType1d [
+	^ #('doughnut' 'pie' 'polarArea') asOrderedCollection
+]
+
+{ #category : #chartType }
+ChartData >> chartType: aChartType [
+	^ self styleSheet chartType: aChartType
+]
+
+{ #category : #accessing }
+ChartData >> dataSets [
+	^ dataSets
+]
+
+{ #category : #accessing }
+ChartData >> dataSets: anObject [
+	anObject do: [ :dataSet | dataSet setDefaultOptions: self chartType defaultOptions].
+	dataSets := anObject asOrderedCollection.
+]
+
+{ #category : #colors }
+ChartData >> dataSetsColors: aCollectionOfColors [
+	self
+		assert: aCollectionOfColors size = self dataSets size
+		description: 'The provided collection of colors must have one color per dataset'.
+	self dataSets doWithIndex: [ :aDataSet :anIndex | aDataSet color: (aCollectionOfColors at: anIndex) ]
+]
+
+{ #category : #presentation }
+ChartData >> displayKeysAsPercent [
+	self keyDisplayBlock: [ :percent | (percent * 100) rounded asString, '%' ]
+]
+
+{ #category : #testing }
+ChartData >> hasData [
+	^ self xObjects isNotEmpty
+]
+
+{ #category : #testing }
+ChartData >> hasLegend [
+	^ self dataSets anySatisfy: #hasName
+]
+
+{ #category : #testing }
+ChartData >> hasTitle [
+	^ self title notNil
+]
+
+{ #category : #initialization }
+ChartData >> initialize [
+	self styleSheet: ChartStyleSheet default.
+	self chartType: ChartLine.
+]
+
+{ #category : #accessing }
+ChartData >> keyDisplayBlock [
+	^ keyDisplayBlock ifNil: [ #yourself ]
+]
+
+{ #category : #accessing }
+ChartData >> keyDisplayBlock: anObject [
+	keyDisplayBlock := anObject
+]
+
+{ #category : #presentation }
+ChartData >> labelFor: aString [ 
+	^ (self keyDisplayBlock value: aString)
+]
+
+{ #category : #exchange }
+ChartData >> neoJsonOn: writer [
+  writer writeMapStreamingDo: [:jsonMapWriter |  jsonMapWriter writeKey: #labels value: (xObjects collect: [:aXObject |  self labelFor: aXObject ]).
+        jsonMapWriter writeKey: #datasets value: self resetBackgroundwithDataSize ]
+]
+
+{ #category : #colors }
+ChartData >> resetBackgroundwithDataSize [
+	| dic |
+	dic := self dataSets
+		collect:
+			[ :aDataSet | aDataSet neoJsonObjectFor: self xObjects block: self valueDisplayBlock ].
+	(self chartType1d includes: self chartType forChartJS)
+		ifTrue: [ dic anyOne
+				at: #backgroundColor
+				put: (Color wheel: self xObjects size + 1) ].
+	^ dic
+]
+
+{ #category : #accessing }
+ChartData >> styleSheet [
+	^ styleSheet
+]
+
+{ #category : #accessing }
+ChartData >> styleSheet: anObject [
+	styleSheet := anObject
+]
+
+{ #category : #accessing }
+ChartData >> title [
+
+	^ title isBlock ifTrue: [ title value: self dataSets ] ifFalse: [ title ]
+]
+
+{ #category : #accessing }
+ChartData >> title: aBlockOrTitle [
+	"You can provide a title String or a block that will be executed with the collection of dataSets as parameter"
+	title:= aBlockOrTitle
+]
+
+{ #category : #accessing }
+ChartData >> valueDisplayBlock [
+	self flag: #TODO. "move this property at the dataset level to have different valueDisplayBlock for each dataset"
+	^ valueDisplayBlock ifNil: [ #yourself ]
+]
+
+{ #category : #accessing }
+ChartData >> valueDisplayBlock: anObject [
+	valueDisplayBlock := anObject
+]
+
+{ #category : #accessing }
+ChartData >> xObjects [
+	^ xObjects
+]
+
+{ #category : #accessing }
+ChartData >> xObjects: anObject [
+	xObjects := anObject
+]
diff --git a/src/ChartJs-Core/ChartDataAbstract.class.st b/src/ChartJs-Core/ChartDataAbstract.class.st
deleted file mode 100644
index 4b1e4e4..0000000
--- a/src/ChartJs-Core/ChartDataAbstract.class.st
+++ /dev/null
@@ -1,128 +0,0 @@
-"
-I am the abstract class for chart data; defining the charttype to represent me, title and style
-"
-Class {
-	#name : #ChartDataAbstract,
-	#superclass : #Object,
-	#instVars : [
-		'styleSheet',
-		'title',
-		'valueDisplayBlock',
-		'singleValueTooltip',
-		'multiValueTooltip'
-	],
-	#category : #'ChartJs-Core-Model'
-}
-
-{ #category : #tooltip }
-ChartDataAbstract >> adaptToolTip: aToolTipString [
-	^ (Array with: '<label>' -> '<%= datasetLabel %>' with: '<value>' -> '<%= value %>' with: '<key>' -> '<%= label %>')
-		inject: aToolTipString
-		into: [ :tooltip :asso | tooltip copyReplaceAll: asso key with: asso value ]
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> at: anIndex ifPresent: aBlockClosure [ 
-	"Used by callback to retrieve value"
-	^ self subclassResponsibility 
-]
-
-{ #category : #chartType }
-ChartDataAbstract >> chartType [
-	^ self styleSheet chartType
-]
-
-{ #category : #chartType }
-ChartDataAbstract >> chartType: aChartType [
-	^ self styleSheet chartType: aChartType
-]
-
-{ #category : #options }
-ChartDataAbstract >> enrichOptions: anOptionDictionary [
-	self singleValueTooltip ifNotNil: [ anOptionDictionary at: #tooltipTemplate put: self singleValueTooltipJs ].
-	self multiValueTooltip ifNotNil: [ anOptionDictionary at: #multiTooltipTemplate put: self multiValueTooltipJs ].
-	
-]
-
-{ #category : #testing }
-ChartDataAbstract >> hasData [
-	^ self subclassResponsibility
-]
-
-{ #category : #testing }
-ChartDataAbstract >> hasLegend [
-	^ false
-]
-
-{ #category : #testing }
-ChartDataAbstract >> hasTitle [
-	^ self title notNil
-]
-
-{ #category : #initialization }
-ChartDataAbstract >> initialize [
-	self styleSheet: ChartStyleSheet default
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> multiValueTooltip [
-	^ multiValueTooltip
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> multiValueTooltip: anObject [
-	multiValueTooltip := anObject
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> multiValueTooltipJs [
-	^ self adaptToolTip: self multiValueTooltip
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> singleValueTooltip [
-	^ singleValueTooltip
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> singleValueTooltip: anObject [
-	singleValueTooltip := anObject
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> singleValueTooltipJs [
-	^ self adaptToolTip: self singleValueTooltip
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> styleSheet [
-	^ styleSheet
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> styleSheet: anObject [
-	styleSheet := anObject
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> title [
-
-	^ self subclassResponsibility 
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> title: aBlockOrTitle [
-	"You can provide a title String or a block that will be executed with the collection of dataSets as parameter"
-	title:= aBlockOrTitle
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> valueDisplayBlock [
-	self flag: #TODO. "move this property at the dataset level to have different valueDisplayBlock for each dataset"
-	^ valueDisplayBlock ifNil: [ #yourself ]
-]
-
-{ #category : #accessing }
-ChartDataAbstract >> valueDisplayBlock: anObject [
-	valueDisplayBlock := anObject
-]
diff --git a/src/ChartJs-Core/ChartDataSet.class.st b/src/ChartJs-Core/ChartDataSet.class.st
index 478185d..e1c5ccc 100644
--- a/src/ChartJs-Core/ChartDataSet.class.st
+++ b/src/ChartJs-Core/ChartDataSet.class.st
@@ -29,7 +29,8 @@ ChartDataSet >> hasName [
 { #category : #initialization }
 ChartDataSet >> initialize [
 	super initialize.
-	self styleSheet: ChartStyleSheet charDataSetDefault
+	self styleSheet: ChartStyleSheet charDataSetDefault.
+	name:=''.
 ]
 
 { #category : #accessing }
@@ -45,13 +46,34 @@ ChartDataSet >> name: anObject [
 { #category : #exchange }
 ChartDataSet >> neoJsonObjectFor: aCollectionOfXObjects block: aBlock [
 	| dico |
+	self flag: 'option for fill: "dico at: #fill put: true." '.
 	dico := Dictionary new.
 	dico at: #label put: self name.
-	dico at: #data put: (self valuesFor: aCollectionOfXObjects block: aBlock).
-	dico addAll: (self styleSheet charDataSetNeoJsonObjectForKeys: aCollectionOfXObjects values: (dico at: #data) label: self name).
+	dico
+		at: #data
+		put: (self valuesFor: aCollectionOfXObjects block: aBlock).
+	dico
+		addAll:
+			(dico
+				addAll:
+					(self styleSheet
+						charDataSetNeoJsonObjectForKeys: aCollectionOfXObjects
+						values: (dico at: #data)
+						label: self name)).
+	"self styleSheet attributes."
 	^ dico
 ]
 
+{ #category : #initialization }
+ChartDataSet >> setDefaultOptions: defaultOptions [
+	defaultOptions do: [ :opt | self setOption: opt key to: opt value ]
+]
+
+{ #category : #exchange }
+ChartDataSet >> setOption: aSymbol to: aValue [
+	self styleSheet setOption: aSymbol to: aValue
+]
+
 { #category : #accessing }
 ChartDataSet >> styleSheet [
 	^ styleSheet
diff --git a/src/ChartJs-Core/ChartDonut.class.st b/src/ChartJs-Core/ChartDonut.class.st
index 05971b5..f61a218 100644
--- a/src/ChartJs-Core/ChartDonut.class.st
+++ b/src/ChartJs-Core/ChartDonut.class.st
@@ -9,17 +9,12 @@ Class {
 
 { #category : #ChartJs }
 ChartDonut class >> dataFunction [
-	^ 'segments'
-]
-
-{ #category : #ChartJs }
-ChartDonut class >> eventsCode [
-	^ 'getSegmentsAtEvent(evt)'
+	^ 'elements'
 ]
 
 { #category : #ChartJs }
 ChartDonut class >> forChartJS [
-	^ 'Doughnut'
+	^ 'doughnut'
 ]
 
 { #category : #ChartJs }
diff --git a/src/ChartJs-Core/ChartJsComponent.class.st b/src/ChartJs-Core/ChartJsComponent.class.st
index be9f6e1..96ba48c 100644
--- a/src/ChartJs-Core/ChartJsComponent.class.st
+++ b/src/ChartJs-Core/ChartJsComponent.class.st
@@ -49,28 +49,28 @@ ChartJsComponent >> callbackMechanism: canvasId actionUrl: anUrl cb: cb eventsCo
 				<< 'document.getElementById("graph';
 				<< canvasId;
 				<<
-						'").onclick = function(evt){
+					'").onclick = function(evt){
 	//add 1 because Pharo start at 1 and Js at 0
-    var activePointIndex = 1 + myChart';
-				<< canvasId;
-				<<
-						(self data chartType isMultiDataSet
-								ifTrue: [ '.datasets[0].' ]
-								ifFalse: [ '.' ]);
-				<< self data chartType dataFunction;
-				<< '.indexOf(myChart';
+	var activePoint = myChart';
 				<< canvasId;
 				<< '.';
 				<< eventsCode;
+				<< '[0];';
+				<< Character cr;
+				<< 'console.log(activePoint["_index"])';
+				<< Character cr;
 				<<
-						'[0]);
+					'
+    var activePointIndex = 1 + activePoint["_index"]';
+<<
+					'
 	if(activePointIndex!=0){
 	post( "';
 				<< anUrl asString;
 				<< '", { "';
 				<< cb;
 				<<
-						'" : activePointIndex } );
+					'" : activePointIndex } );
 }};' ]
 ]
 
@@ -101,12 +101,12 @@ ChartJsComponent >> hasCallBack [
 { #category : #rendering }
 ChartJsComponent >> manageCallBackIn: html canvas: canvas inDiv: divId [
 	self hasCallBack
-		ifTrue: [ 
-			| cb |
+		ifTrue: [ | cb |
 			cb := canvas
 				storeCallback:
 					(WAValuesCallback
-						on: [ :nodeOrAssociation | self value cull: nodeOrAssociation value cull: nodeOrAssociation key ]
+						on:
+							[ :nodeOrAssociation | self value cull: nodeOrAssociation value cull: nodeOrAssociation key ]
 						values: self data).
 			html
 				script:
@@ -135,15 +135,46 @@ ChartJsComponent >> printDataOn: s [
 ]
 
 { #category : #rendering }
-ChartJsComponent >> printDiagramCreationOn: s inDiv: divId [
+ChartJsComponent >> printDiagramContextCreationOn: s inDiv: divId [
 	s
-		<< 'var myChart';
-		<< divId;
-		<< ' = new Chart(document.getElementById("';
+		<< 'var ctx = document.getElementById("';
 		<< #graph;
 		<< divId;
-		<< '").getContext("2d")).';
-		<< self data chartType forChartJS
+		<< '").getContext("2d");'
+]
+
+{ #category : #rendering }
+ChartJsComponent >> printDiagramCreationOn: s [
+	s
+		<< 'var myChart = new Chart(ctx, {';
+		cr;
+		<< 'type:"';
+		<< data chartType forChartJS ;
+		<< '",data:';
+		cr.
+	(NeoJSONWriter on: s) nextPut: self data.
+	s
+		cr;
+		<< ',options:'.
+	self printOptionsOn: s inHtml: nil canvas: nil.
+	s << '});'
+]
+
+{ #category : #rendering }
+ChartJsComponent >> printDiagramCreationOn: s inDiv: divId [
+	(s << 'var myChart' << divId asString)
+		<< ' = new Chart(ctx, {';
+		cr;
+		<< 'type:"';
+		<< data chartType forChartJS;
+		<< '",data:';
+		cr.
+	(NeoJSONWriter on: s) nextPut: self data.
+	s
+		cr;
+		<< ',options:'.
+	self printOptionsOn: s inHtml: nil canvas: nil.
+	s << '});'
 ]
 
 { #category : #rendering }
@@ -162,7 +193,6 @@ ChartJsComponent >> printLegendOn: s forDiv: divId [
 ChartJsComponent >> printOptionsOn: s inHtml: html canvas: canvas [
 	|  optionsDictionary |
 	optionsDictionary := self options asDictionary.
-	self data enrichOptions: optionsDictionary.
 	(NeoJSONWriter on: s)
 		nextPut: optionsDictionary;
 		close
@@ -187,17 +217,9 @@ ChartJsComponent >> renderContentOn: html [
 						script:
 							(String
 								streamContents: [ :s | 
-									self printDiagramCreationOn: s inDiv: divId.
-									s nextPutAll: '('.
-									self printDataOn: s.
-									s nextPutAll: ', '.
-									self printOptionsOn: s inHtml: html canvas: canvas.
-									s nextPutAll: ');'.
-									self printLegendOn: s forDiv: divId.
-									s
-										<< 'charts.push(myChart';
-										<< divId;
-										<< ')' ]) ]
+									self printDiagramContextCreationOn: s inDiv: divId.
+									s cr.
+									self printDiagramCreationOn: s inDiv: divId ]) ]
 				ifFalse: [ html div
 						class: 'mdl-alert mdl-alert__danger';
 						style: 'color: red; text-align: center; margin: auto;';
diff --git a/src/ChartJs-Core/ChartLine.class.st b/src/ChartJs-Core/ChartLine.class.st
index fba31e1..3e957d8 100644
--- a/src/ChartJs-Core/ChartLine.class.st
+++ b/src/ChartJs-Core/ChartLine.class.st
@@ -12,14 +12,14 @@ ChartLine class >> dataFunction [
 	^ 'points'
 ]
 
-{ #category : #ChartJs }
-ChartLine class >> eventsCode [
-	^ 'getPointsAtEvent(evt)'
+{ #category : #options }
+ChartLine class >> defaultOptions [ 
+	^ { #fill -> false }
 ]
 
 { #category : #ChartJs }
 ChartLine class >> forChartJS [
-	^ 'Line'
+	^ 'line'
 ]
 
 { #category : #testing }
diff --git a/src/ChartJs-Core/ChartOptions.class.st b/src/ChartJs-Core/ChartOptions.class.st
index d5f9512..76dac6f 100644
--- a/src/ChartJs-Core/ChartOptions.class.st
+++ b/src/ChartJs-Core/ChartOptions.class.st
@@ -16,11 +16,11 @@ Class {
 ChartOptions >> asDictionary [
 	| optionDictionary |
 	optionDictionary := Dictionary new.
-	optionDictionary
+	"optionDictionary
 		at: #scales
 		put:
 			{(#xAxes -> self xAxis).
-			(#yAxes -> self yAxis)} asDictionary.
+			(#yAxes -> self yAxis)} asDictionary."
 	^ optionDictionary
 ]
 
diff --git a/src/ChartJs-Core/ChartPie.class.st b/src/ChartJs-Core/ChartPie.class.st
index a0cf907..e68a29d 100644
--- a/src/ChartJs-Core/ChartPie.class.st
+++ b/src/ChartJs-Core/ChartPie.class.st
@@ -12,14 +12,9 @@ ChartPie class >> dataFunction [
 	^ 'segments'
 ]
 
-{ #category : #ChartJs }
-ChartPie class >> eventsCode [
-	^ 'getSegmentsAtEvent(evt)'
-]
-
 { #category : #ChartJs }
 ChartPie class >> forChartJS [
-	^ 'Pie'
+	^ 'pie'
 ]
 
 { #category : #ChartJs }
diff --git a/src/ChartJs-Core/ChartPolar.class.st b/src/ChartJs-Core/ChartPolar.class.st
index 996bde7..bac2b50 100644
--- a/src/ChartJs-Core/ChartPolar.class.st
+++ b/src/ChartJs-Core/ChartPolar.class.st
@@ -12,14 +12,9 @@ ChartPolar class >> dataFunction [
 	^ 'segments'
 ]
 
-{ #category : #ChartJs }
-ChartPolar class >> eventsCode [
-	^ 'getSegmentsAtEvent(evt)'
-]
-
 { #category : #ChartJs }
 ChartPolar class >> forChartJS [
-	^ 'PolarArea'
+	^ 'polarArea'
 ]
 
 { #category : #ChartJs }
diff --git a/src/ChartJs-Core/ChartRadar.class.st b/src/ChartJs-Core/ChartRadar.class.st
index 2ecc442..052c949 100644
--- a/src/ChartJs-Core/ChartRadar.class.st
+++ b/src/ChartJs-Core/ChartRadar.class.st
@@ -9,17 +9,12 @@ Class {
 
 { #category : #ChartJs }
 ChartRadar class >> dataFunction [
-	^ 'points'
-]
-
-{ #category : #ChartJs }
-ChartRadar class >> eventsCode [
-	^ 'getPointsAtEvent(evt)'
+	^ 'segments'
 ]
 
 { #category : #ChartJs }
 ChartRadar class >> forChartJS [
-	^ 'Radar'
+	^ 'radar'
 ]
 
 { #category : #testing }
diff --git a/src/ChartJs-Core/ChartStyleSheet.class.st b/src/ChartJs-Core/ChartStyleSheet.class.st
index e9d6615..2ec3cb1 100644
--- a/src/ChartJs-Core/ChartStyleSheet.class.st
+++ b/src/ChartJs-Core/ChartStyleSheet.class.st
@@ -21,12 +21,40 @@ ChartStyleSheet class >> default [
 		yourself
 ]
 
+{ #category : #accessing }
+ChartStyleSheet >> backgroundColor [
+	^ self get: #backgroundColor
+]
+
+{ #category : #accessing }
+ChartStyleSheet >> backgroundColor: aColor [
+	self at: #backgroundColor put: aColor
+]
+
+{ #category : #accessing }
+ChartStyleSheet >> borderColor [
+	^ self get: #borderColor
+]
+
+{ #category : #accessing }
+ChartStyleSheet >> borderColor: aColor [
+	self at: #borderColor put: aColor
+]
+
 { #category : #'as yet unclassified' }
 ChartStyleSheet >> charDataSetNeoJsonObjectForKeys: aCollectionOfXObjects values: values label: aLabel [
-	^ #(#fillColor #strokeColor #pointColor #pointStrokeColor #pointHighlightFill #pointHighlightStroke)
+	self flag: 'Only works for color style. How to have other options?'.
+	^ #(#fill #borderColor #backgroundColor #pointColor #pointBackgroundColor  #pointHoverBorderColor pointBorderColor #pointBackgroundColor)
 		inject: Dictionary new
 		into: [ :dico :aStyleSelector | 
-			[ dico at: aStyleSelector put: (self obtainValue: aStyleSelector value forKeys: aCollectionOfXObjects andValues: values andLabel: aLabel) forChartJs ]
+			[ dico
+				at: aStyleSelector
+				put:
+					(self
+						obtainValue: aStyleSelector value
+						forKeys: aCollectionOfXObjects
+						andValues: values
+						andLabel: aLabel) forChartJs ]
 				on: NotFound
 				do: [  ].
 			dico ]
@@ -37,35 +65,42 @@ ChartStyleSheet >> chartType [
 	^ self get: #chartType
 ]
 
+{ #category : #initialization }
+ChartStyleSheet >> chartType1d [
+	^ #('Doughnut' 'Pie' 'PolarArea') asOrderedCollection
+]
+
 { #category : #points }
 ChartStyleSheet >> chartType: aChartType [
 	self at: #chartType put: aChartType
 ]
 
-{ #category : #points }
-ChartStyleSheet >> fillColor [
-	^ self get: #fillColor
+{ #category : #attributes }
+ChartStyleSheet >> fill [
+	^ self get: #fill
 ]
 
-{ #category : #points }
+{ #category : #accessing }
 ChartStyleSheet >> fillColor: aColor [
-	^ self at: #fillColor put: aColor
+	self at: #fillColor put: aColor
 ]
 
 { #category : #helpers }
 ChartStyleSheet >> globalSetColor: aColor [
-	self fillColor: (aColor copy alpha: 0.2).
-	self pointColor: aColor.
-	self pointHighlightFill: Color white.
-	self pointHighlightStroke: aColor.
-	self pointStrokeColor: Color white.
-	self strokeColor: aColor
+	self setOption: #pointBackgroundColor to: aColor.
+	self setOption: #pointBorderColor to: Color white.
+	self setOption: #pointHoverBackgroundColor to: Color white.
+	self setOption: #pointHoverBorderColor to: aColor.
+	self setOption: #borderColor to: aColor.
+	self setOption: #fill to: false.
+	self setOption: #backgroundColor to: (aColor copy alpha: 0.2)
 ]
 
 { #category : #helpers }
 ChartStyleSheet >> globalSetColorZone: aColor [
-	self fillColor: (aColor copy alpha: 0.8).
-	self strokeColor: aColor
+	self setOption: #borderColor to: aColor.
+	self setOption: #backgroundColor to: (aColor copy alpha: 0.8) .
+
 ]
 
 { #category : #scale }
@@ -91,44 +126,52 @@ ChartStyleSheet >> obtainValue: aPropertyOrValuable forKeys: aCollectionOfXObjec
 		ifFalse: [ result ]
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointColor [
-	^ self get: #pointColor
+{ #category : #accessing }
+ChartStyleSheet >> pointBackgroundColor [
+	^ self get: #pointBackgroundColor
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointColor: aColor [
-	^ self at: #pointColor put: aColor
+{ #category : #'as yet unclassified' }
+ChartStyleSheet >> pointBackgroundColor: aColor [
+	self at:  #pointBackgroundColor put: aColor
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointHighlightFill [
-	^ self get: #pointHighlightFill
+{ #category : #accessing }
+ChartStyleSheet >> pointBorderColor [
+	^ self get: #pointBorderColor
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointHighlightFill: aColor [
-	^ self at: #pointHighlightFill put: aColor
+{ #category : #accessing }
+ChartStyleSheet >> pointBorderColor: aColor [
+	self at: #pointBorderColor put: aColor
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointHighlightStroke [
-	^ self get: #pointHighlightStroke
+{ #category : #accessing }
+ChartStyleSheet >> pointColor [
+	^ self get: #pointColor
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointHighlightStroke: aColor [
-	^ self at: #pointHighlightStroke put: aColor
+{ #category : #accessing }
+ChartStyleSheet >> pointHoverBackgroundColor: aColor [
+	self at:  #pointHoverBackgroundColor put: aColor
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointStrokeColor [
-	^ self get: #pointStrokeColor
+{ #category : #accessing }
+ChartStyleSheet >> pointHoverBorderColor [
+	^ self get: #pointHoverBorderColor
 ]
 
-{ #category : #points }
-ChartStyleSheet >> pointStrokeColor: aColor [
-	^ self at: #pointStrokeColor put: aColor
+{ #category : #accessing }
+ChartStyleSheet >> pointHoverBorderColor: aColorOrBlock [
+	self at: #pointHoverBorderColor put: aColorOrBlock value
+]
+
+{ #category : #initialization }
+ChartStyleSheet >> resetBackgroundwithDataSize: aNumber [
+	(self chartType1d includes: self chartType forChartJS)
+		ifTrue: [ self
+				setOption: #backgroundColor
+				to: (RTCPQualitative new colors: aNumber + 1) ]
 ]
 
 { #category : #scale }
@@ -137,11 +180,6 @@ ChartStyleSheet >> scale [
 ]
 
 { #category : #points }
-ChartStyleSheet >> strokeColor [
-	^ self get: #strokeColor
-]
-
-{ #category : #points }
-ChartStyleSheet >> strokeColor: aColor [
-	^ self at: #strokeColor put: aColor
+ChartStyleSheet >> setOption: aSymbol to: aValue [
+	^ self at: aSymbol put: aValue
 ]
diff --git a/src/ChartJs-Core/ChartType.class.st b/src/ChartJs-Core/ChartType.class.st
index 1f8e78b..83a47b9 100644
--- a/src/ChartJs-Core/ChartType.class.st
+++ b/src/ChartJs-Core/ChartType.class.st
@@ -12,9 +12,14 @@ ChartType class >> dataFunction [
 	^ self subclassResponsibility 
 ]
 
+{ #category : #options }
+ChartType class >> defaultOptions [
+	^#()
+]
+
 { #category : #ChartJs }
 ChartType class >> eventsCode [
-	^ self subclassResponsibility 
+	^ 'getElementAtEvent(evt)'
 ]
 
 { #category : #ChartJs }
@@ -31,3 +36,11 @@ ChartType class >> isFor1DValues [
 ChartType class >> isMultiDataSet [
 	^ false
 ]
+
+{ #category : #conversion }
+ChartType >> neoJsonOn: writer [
+	writer
+		writeMapStreamingDo: [ :jsonMapWriter | 
+			jsonMapWriter writeKey: #type value: self class forChartJS.
+		]
+]
diff --git a/src/ChartJs-Core/ChartViolin.class.st b/src/ChartJs-Core/ChartViolin.class.st
new file mode 100644
index 0000000..821d495
--- /dev/null
+++ b/src/ChartJs-Core/ChartViolin.class.st
@@ -0,0 +1,10 @@
+Class {
+	#name : #ChartViolin,
+	#superclass : #ChartBoxPlot,
+	#category : #'ChartJs-Core-Types'
+}
+
+{ #category : #ChartJs }
+ChartViolin class >> forChartJS [
+	^ 'violin'
+]
diff --git a/src/ChartJs-Core/ChartViolinData.class.st b/src/ChartJs-Core/ChartViolinData.class.st
new file mode 100644
index 0000000..0a36314
--- /dev/null
+++ b/src/ChartJs-Core/ChartViolinData.class.st
@@ -0,0 +1,5 @@
+Class {
+	#name : #ChartViolinData,
+	#superclass : #ChartBoxPlotData,
+	#category : #'ChartJs-Core-Model'
+}
diff --git a/src/ChartJs-Core/Color.extension.st b/src/ChartJs-Core/Color.extension.st
index 4d7d283..a2a518f 100644
--- a/src/ChartJs-Core/Color.extension.st
+++ b/src/ChartJs-Core/Color.extension.st
@@ -15,3 +15,21 @@ Color >> forChartJs [
 				nextPutAll: self alpha asString;
 				nextPut: $) ]
 ]
+
+{ #category : #'*ChartJs-Core' }
+Color >> neoJsonOn: neoJSonWriter [
+	neoJSonWriter
+		writeString:
+			(String
+				streamContents: [ :s | 
+					s
+						nextPutAll: 'rgba(';
+						nextPutAll: (self red * 255) asInteger asString;
+						nextPut: $,;
+						nextPutAll: (self green * 255) asInteger asString;
+						nextPut: $,;
+						nextPutAll: (self blue * 255) asInteger asString;
+						nextPut: $,;
+						nextPutAll: self alpha asString;
+						nextPut: $) ])
+]
diff --git a/src/ChartJs-Demo/Chart1dDemo.class.st b/src/ChartJs-Demo/Chart1dDemo.class.st
index f1fdcb3..5fc823c 100644
--- a/src/ChartJs-Demo/Chart1dDemo.class.st
+++ b/src/ChartJs-Demo/Chart1dDemo.class.st
@@ -27,9 +27,10 @@ Chart1dDemo >> renderChartJsComponentOn: html [
 	
 	renderingChartBlock := [ :canvas | 
 	| chartData |
-	chartData := (Chart1dData values: {('Eating' -> 80). ('Drinking' -> 100). ('Sleeping' -> 70). ('Designing' -> 50). ('Coding' -> 40). ('Cycling' -> 10). ('Running' -> 25)})
+	chartData := (ChartData
+						xObjects: {'Eating' . 'Drinking' .'Sleeping' . 'Designing' . 'Coding' . 'Cycling' . 'Running' }
+						yObjects: { 80 . 100 . 70 . 50 . 40 . 10 . 25})
 		title: [ :datas | 'Priority of actions' ];
-		singleValueTooltip: '<key> has an importance of <value>%';
 		chartType: self kind;
 		yourself.
 	selection
diff --git a/src/ChartJs-Demo/Chart2dDemo.class.st b/src/ChartJs-Demo/Chart2dDemo.class.st
index 76041d9..ad58774 100644
--- a/src/ChartJs-Demo/Chart2dDemo.class.st
+++ b/src/ChartJs-Demo/Chart2dDemo.class.st
@@ -24,23 +24,31 @@ Chart2dDemo >> kinds [
 { #category : #rendering }
 Chart2dDemo >> renderChartJsComponentOn: html [
 	| renderingChartBlock id |
-	
 	renderingChartBlock := [ :canvas | 
 	| chartData |
-	chartData := (Chart2dData
-		xObjects: {'Eating' . 'Drinking' . 'Sleeping' . 'Designing' . 'Coding' . 'Cycling' . 'Running'}
-		multiYObjects: {('Guillaume' -> {65 . 59 . 90 . 81 . 56 . 55 . 40}). ('Cyril' -> {28 . 48 . 40 . 19 . 96 . 27 . 100})})
+	chartData := (ChartData
+		xObjects:
+		{'Eating' . 'Drinking' . 'Sleeping' . 'Designing' . 'Coding' . 'Cycling'.
+	'Running'}
+		multiYObjects:
+		{('Guillaume' -> {65 . 59 . 90 . 81 . 56 . 55 . 40}).
+			('Cyril' -> {28 . 48 . 40 . 19 . 96 . 27 . 100})})
 		title: [ :sets | 'Spent time for ' , (sets collect: #name) asCommaStringAnd ];
-		multiValueTooltip: '<label> spent <value> min in <key>';
 		chartType: self kind;
 		yourself.
 	selection
 		ifNotNil: [ canvas heading
 				level: 3;
-				with: 'Selected value: ' , selection key asString , ' label: ' , selection value ].
-	html render: (ChartJsComponent data: chartData callback: [ :value :label | selection := value -> label ]) ].
-
+				with:
+					'Selected value: ' , selection key asString , ' label: '
+						, selection value ].
+	html render: (ChartJsComponent
+		data: chartData
+		callback: [ :value :label | selection := value -> label ]) ].
 	id := html nextId.
-	self renderPossibleKindsUpdating: id with: renderingChartBlock on: html.
+	self
+		renderPossibleKindsUpdating: id
+		with: renderingChartBlock
+		on: html.
 	self renderDemoWithId: id with: renderingChartBlock on: html
 ]
diff --git a/src/ChartJs-Demo/ChartBoxPlotDemo.class.st b/src/ChartJs-Demo/ChartBoxPlotDemo.class.st
index 031d52b..b71c4d6 100644
--- a/src/ChartJs-Demo/ChartBoxPlotDemo.class.st
+++ b/src/ChartJs-Demo/ChartBoxPlotDemo.class.st
@@ -17,7 +17,7 @@ ChartBoxPlotDemo class >> title [
 { #category : #rendering }
 ChartBoxPlotDemo >> renderChartJsComponentOn: html [
 	| chartData chartData2 |
-	chartData := Chart2dData
+	chartData := ChartData
 		xObjects: #(Guillaume Cyril)
 		function: [ :aPlayer | 
 			ChartBoxPlotData
@@ -30,7 +30,7 @@ ChartBoxPlotDemo >> renderChartJsComponentOn: html [
 	html render: (ChartJsComponent data: chartData).
 	
 	
-	chartData2 := Chart2dData
+	chartData2 := ChartData
 		xObjects:
 			{Collection.
 			TestCase}
diff --git a/src/ChartJs-Demo/ChartCallbackDemo.class.st b/src/ChartJs-Demo/ChartCallbackDemo.class.st
index ff77a65..8adbc65 100644
--- a/src/ChartJs-Demo/ChartCallbackDemo.class.st
+++ b/src/ChartJs-Demo/ChartCallbackDemo.class.st
@@ -24,10 +24,10 @@ ChartCallbackDemo >> renderChartJsComponentOn: html [
 		level: 3;
 		with: (selection ifNotNil: [ 'Selected value: ' , selection key asString , ' label: ' , selection value ] ifNil: [ 'Click on a part of the pie to select it' ]).
 		
-	chartData := (Chart1dData
-		values: {('Eating' -> 80). ('Drinking' -> 100). ('Sleeping' -> 70). ('Designing' -> 50). ('Coding' -> 40). ('Cycling' -> 10). ('Running' -> 25)})
+	chartData := (ChartData
+						xObjects: {'Eating' . 'Drinking' .'Sleeping' . 'Designing' . 'Coding' . 'Cycling' . 'Running' }
+						yObjects: { 80 . 100 . 70 . 50 . 40 . 10 . 25})
 		title: [ :datas | 'Priority of actions' ];
-		singleValueTooltip: '<key> has an importance of <value>%';
 		chartType: ChartPie;
 		yourself.
 		
diff --git a/src/ChartJs-Demo/ChartFunctionDemo.class.st b/src/ChartJs-Demo/ChartFunctionDemo.class.st
index de188fd..ef911b3 100644
--- a/src/ChartJs-Demo/ChartFunctionDemo.class.st
+++ b/src/ChartJs-Demo/ChartFunctionDemo.class.st
@@ -16,5 +16,5 @@ ChartFunctionDemo class >> title [
 
 { #category : #rendering }
 ChartFunctionDemo >> renderChartJsComponentOn: html [
-	html render: (ChartJsComponent data: (Chart2dData xObjects: (1 to: 10) function: [ :x | x * (x + 1) ]))
+	html render: (ChartJsComponent data: (ChartData xObjects: (1 to: 10) function: [ :x | x * (x + 1) ]))
 ]
diff --git a/src/ChartJs-Demo/ChartLabelsDemo.class.st b/src/ChartJs-Demo/ChartLabelsDemo.class.st
index b4e30d0..6b0b086 100644
--- a/src/ChartJs-Demo/ChartLabelsDemo.class.st
+++ b/src/ChartJs-Demo/ChartLabelsDemo.class.st
@@ -17,12 +17,11 @@ ChartLabelsDemo class >> title [
 { #category : #rendering }
 ChartLabelsDemo >> renderChartJsComponentOn: html [
 	| chartData |
-	chartData := Chart2dData
+	chartData := ChartData
 		xObjects: WADecoration allSubclasses
 		function: #methods.
 	chartData
 		title: [ :sets | 'Spent time for ' , (sets collect: #name) asCommaStringAnd ];
-		multiValueTooltip: '<label> spent <value> min in <key>';
 		chartType: ChartLine;
 		keyDisplayBlock: #printString;
 		valueDisplayBlock: [ :methods | methods size ].
diff --git a/src/ChartJs-Demo/ChartPolar.extension.st b/src/ChartJs-Demo/ChartPolar.extension.st
index 6d5e406..58bd237 100644
--- a/src/ChartJs-Demo/ChartPolar.extension.st
+++ b/src/ChartJs-Demo/ChartPolar.extension.st
@@ -2,5 +2,5 @@ Extension { #name : #ChartPolar }
 
 { #category : #'*ChartJs-Demo' }
 ChartPolar class >> displayName [
-	^ 'Polar'
+	^ 'polar'
 ]
diff --git a/src/ChartJs-Demo/ChartStyleDemo.class.st b/src/ChartJs-Demo/ChartStyleDemo.class.st
index 61cbf4d..a3bdfbc 100644
--- a/src/ChartJs-Demo/ChartStyleDemo.class.st
+++ b/src/ChartJs-Demo/ChartStyleDemo.class.st
@@ -17,26 +17,42 @@ ChartStyleDemo class >> title [
 { #category : #rendering }
 ChartStyleDemo >> renderChartJsComponentOn: html [
 	| chartData styleForPersons |
-	chartData := (Chart2dData
-		xObjects: {'Eating' . 'Drinking' . 'Sleeping' . 'Designing' . 'Coding' . 'Cycling' . 'Running'}
-		multiYObjects: {('Guillaume' -> {65 . 59 . 90 . 81 . 56 . 55 . 40}). ('Cyril' -> {28 . 48 . 40 . 19 . 96 . 27 . 100})})
+	chartData := (ChartData
+		xObjects:
+		{'Eating' . 'Drinking' . 'Sleeping' . 'Designing' . 'Coding' . 'Cycling'.
+	'Running'}
+		multiYObjects:
+		{('Guillaume' -> {65 . 59 . 90 . 81 . 56 . 55 . 40}).
+			('Cyril' -> {28 . 48 . 40 . 19 . 96 . 27 . 100})})
 		title: [ :sets | 'Spent time for ' , (sets collect: #name) asCommaStringAnd ];
 		chartType: ChartLine;
 		yourself.
-		
 	styleForPersons := Dictionary
-		with: 'Guillaume' -> (Dictionary with: #pointColor -> Color green with: #strokeColor -> Color green with: #fillColor -> Color lightGreen)
-		with: 'Cyril' -> (Dictionary with: #pointColor -> Color blue with: #strokeColor -> Color blue with: #fillColor -> Color lightBlue).
-		
+		with:
+			'Guillaume'
+				->
+					(Dictionary
+						with: #pointBackgroundColor -> Color green
+						with: #borderColor -> Color green
+						with: #fillColor -> Color lightGreen)
+		with:
+			'Cyril'
+				->
+					(Dictionary
+						with: #pointBackgroundColor -> Color blue
+						with: #borderColor -> Color blue
+						with: #fillColor -> Color lightBlue).
 	chartData dataSets
 		do: [ :set | 
 			set styleSheet
-				pointColor: [ :keys :values :label | (styleForPersons at: label) at: #pointColor ];
-				strokeColor: [ :keys :values :label | (styleForPersons at: label) at: #strokeColor ];
-				pointStrokeColor: Color white;
-				fillColor: [ :keys :values :label | ((styleForPersons at: label) at: #fillColor) alpha: 0.3 ];
-				pointHighlightFill: Color pink;
-				pointHighlightStroke: Color red ].
-			
+				pointBackgroundColor:
+						[ :keys :values :label | (styleForPersons at: label) at: #pointBackgroundColor ];
+				borderColor:
+						[ :keys :values :label | (styleForPersons at: label) at: #borderColor ];
+				pointBorderColor: Color white;
+				fillColor:
+						[ :keys :values :label | ((styleForPersons at: label) at: #fillColor) alpha: 0.3 ];
+				pointHoverBackgroundColor: Color pink;
+				pointHoverBorderColor: Color red ].
 	html render: (ChartJsComponent data: chartData)
 ]
diff --git a/src/ChartJs-Demo/ChartTooltipsDemo.class.st b/src/ChartJs-Demo/ChartTooltipsDemo.class.st
index a857404..553cc7e 100644
--- a/src/ChartJs-Demo/ChartTooltipsDemo.class.st
+++ b/src/ChartJs-Demo/ChartTooltipsDemo.class.st
@@ -17,18 +17,18 @@ ChartTooltipsDemo class >> title [
 { #category : #rendering }
 ChartTooltipsDemo >> renderChartJsComponentOn: html [
 		| chartData chartData2 |
-	chartData := (Chart1dData values: {('Eating' -> 80). ('Drinking' -> 100). ('Sleeping' -> 70). ('Designing' -> 50). ('Coding' -> 40). ('Cycling' -> 10). ('Running' -> 25)})
+	chartData := (ChartData
+						xObjects: {'Eating' . 'Drinking' .'Sleeping' . 'Designing' . 'Coding' . 'Cycling' . 'Running' }
+						yObjects: { 80 . 100 . 70 . 50 . 40 . 10 . 25})
 		title: [ :datas | 'Priority of actions' ];
-		singleValueTooltip: '<key> has an importance of <value>%';
 		chartType: ChartDonut;
 		yourself.
 	html render: (ChartJsComponent data: chartData).
 	
-	chartData2 := (Chart2dData
+	chartData2 := (ChartData
 		xObjects: {'Eating' . 'Drinking' . 'Sleeping' . 'Designing' . 'Coding' . 'Cycling' . 'Running'}
 		multiYObjects: {('Guillaume' -> {65 . 59 . 90 . 81 . 56 . 55 . 40}). ('Cyril' -> {28 . 48 . 40 . 19 . 96 . 27 . 100})})
 		title: [ :sets | 'Spent time for ' , (sets collect: #name) asCommaStringAnd ];
-		multiValueTooltip: '<label> spent <value> min in <key>';
 		chartType: ChartBar;
 		yourself.
 	html render: (ChartJsComponent data: chartData2)
diff --git a/src/ChartJs-Demo/ChartViolinPlotDemo.class.st b/src/ChartJs-Demo/ChartViolinPlotDemo.class.st
new file mode 100644
index 0000000..ddf5f1e
--- /dev/null
+++ b/src/ChartJs-Demo/ChartViolinPlotDemo.class.st
@@ -0,0 +1,43 @@
+Class {
+	#name : #ChartViolinPlotDemo,
+	#superclass : #ChartAbstractDemo,
+	#category : #'ChartJs-Demo'
+}
+
+{ #category : #accessing }
+ChartViolinPlotDemo class >> description [
+	^ 'Violin implementation for ChartJs for Seaside.'
+]
+
+{ #category : #accessing }
+ChartViolinPlotDemo class >> title [
+	^ 'Violin'
+]
+
+{ #category : #rendering }
+ChartViolinPlotDemo >> renderChartJsComponentOn: html [
+	| chartData chartData2 |
+	chartData := ChartData
+		xObjects: #(Guillaume Cyril)
+		function: [ :aPlayer | 
+			ChartViolinData
+				lowest: 5 atRandom
+				firstQuartile: (5 to: 10) atRandom
+				median: (11 to: 15) atRandom
+				thirdQuartile: (16 to: 20) atRandom
+				highest: (21 to: 25) atRandom ].
+	chartData chartType: ChartViolin.
+	html render: (ChartJsComponent data: chartData).
+	chartData2 := ChartData
+		xObjects:
+			{Collection.
+			TestCase}
+		function: [ :class | 
+			ChartViolinData
+				for: class allSubclasses
+				using: [ :c | c methods size ] ].
+	chartData2
+		chartType: ChartViolin;
+		keyDisplayBlock: #printString.
+	html render: (ChartJsComponent data: chartData2)
+]
diff --git a/src/ChartJs-Library/ChartJsLibrary.class.st b/src/ChartJs-Library/ChartJsLibrary.class.st
index d6431d1..0a568c4 100644
--- a/src/ChartJs-Library/ChartJsLibrary.class.st
+++ b/src/ChartJs-Library/ChartJsLibrary.class.st
@@ -18,7 +18,7 @@ getPointAtEvent : function(e){
 Class {
 	#name : #ChartJsLibrary,
 	#superclass : #WAFileLibrary,
-	#category : 'ChartJs-Library'
+	#category : #'ChartJs-Library'
 }
 
 { #category : #'as yet unclassified' }
@@ -29,4031 +29,16193 @@ ChartJsLibrary class >> downloadLib [
 
 { #category : #accessing }
 ChartJsLibrary >> BarPlotChartJs [
-^ '(function(){
-	"use strict";
+^'(function (global, factory) {
+  typeof exports === ''object'' && typeof module !== ''undefined'' ? factory(exports, require(''chart.js'')) :
+  typeof define === ''function'' && define.amd ? define([''exports'', ''chart.js''], factory) :
+  (global = global || self, factory(global.ChartBoxPlot = {}, global.Chart));
+}(this, function (exports, Chart) { ''use strict'';
+
+  function _defineProperty(obj, key, value) {
+    if (key in obj) {
+      Object.defineProperty(obj, key, {
+        value: value,
+        enumerable: true,
+        configurable: true,
+        writable: true
+      });
+    } else {
+      obj[key] = value;
+    }
+
+    return obj;
+  }
+
+  function ownKeys(object, enumerableOnly) {
+    var keys = Object.keys(object);
+
+    if (Object.getOwnPropertySymbols) {
+      var symbols = Object.getOwnPropertySymbols(object);
+      if (enumerableOnly) symbols = symbols.filter(function (sym) {
+        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
+      });
+      keys.push.apply(keys, symbols);
+    }
+
+    return keys;
+  }
+
+  function _objectSpread2(target) {
+    for (var i = 1; i < arguments.length; i++) {
+      var source = arguments[i] != null ? arguments[i] : {};
+
+      if (i % 2) {
+        ownKeys(source, true).forEach(function (key) {
+          _defineProperty(target, key, source[key]);
+        });
+      } else if (Object.getOwnPropertyDescriptors) {
+        Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
+      } else {
+        ownKeys(source).forEach(function (key) {
+          Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
+        });
+      }
+    }
+
+    return target;
+  }
+
+  function _slicedToArray(arr, i) {
+    return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
+  }
+
+  function _arrayWithHoles(arr) {
+    if (Array.isArray(arr)) return arr;
+  }
+
+  function _iterableToArrayLimit(arr, i) {
+    if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) {
+      return;
+    }
+
+    var _arr = [];
+    var _n = true;
+    var _d = false;
+    var _e = undefined;
+
+    try {
+      for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+        _arr.push(_s.value);
+
+        if (i && _arr.length === i) break;
+      }
+    } catch (err) {
+      _d = true;
+      _e = err;
+    } finally {
+      try {
+        if (!_n && _i["return"] != null) _i["return"]();
+      } finally {
+        if (_d) throw _e;
+      }
+    }
+
+    return _arr;
+  }
+
+  function _nonIterableRest() {
+    throw new TypeError("Invalid attempt to destructure non-iterable instance");
+  }
+
+  // See <http://en.wikipedia.org/wiki/Kernel_(statistics)>.
+  function gaussian(u) {
+    return 1 / Math.sqrt(2 * Math.PI) * Math.exp(-.5 * u * u);
+  }
+
+  // Welford''s algorithm.
+  function mean(x) {
+    var n = x.length;
+    if (n === 0) return NaN;
+    var m = 0,
+        i = -1;
+
+    while (++i < n) {
+      m += (x[i] - m) / (i + 1);
+    }
+
+    return m;
+  }
+
+  // Also known as the sample variance, where the denominator is n - 1.
+
+  function variance(x) {
+    var n = x.length;
+    if (n < 1) return NaN;
+    if (n === 1) return 0;
+    var mean$1 = mean(x),
+        i = -1,
+        s = 0;
+
+    while (++i < n) {
+      var v = x[i] - mean$1;
+      s += v * v;
+    }
+
+    return s / (n - 1);
+  }
+
+  function ascending(a, b) {
+    return a - b;
+  }
+
+  function quantiles(d, quantiles) {
+    d = d.slice().sort(ascending);
+    var n_1 = d.length - 1;
+    return quantiles.map(function (q) {
+      if (q === 0) return d[0];else if (q === 1) return d[n_1];
+      var index = 1 + q * n_1,
+          lo = Math.floor(index),
+          h = index - lo,
+          a = d[lo - 1];
+      return h === 0 ? a : a + h * (d[lo] - a);
+    });
+  }
+
+  function iqr(x) {
+    var quartiles = quantiles(x, [.25, .75]);
+    return quartiles[1] - quartiles[0];
+  }
+
+  // Visualization. Wiley.
+
+  function nrd(x) {
+    var h = iqr(x) / 1.34;
+    return 1.06 * Math.min(Math.sqrt(variance(x)), h) * Math.pow(x.length, -1 / 5);
+  }
+
+  function functor(v) {
+    return typeof v === "function" ? v : function () {
+      return v;
+    };
+  }
+
+  function kde() {
+    var kernel = gaussian,
+        sample = [],
+        bandwidth = nrd;
+
+    function kde(points, i) {
+      var bw = bandwidth.call(this, sample);
+      return points.map(function (x) {
+        var i = -1,
+            y = 0,
+            n = sample.length;
+
+        while (++i < n) {
+          y += kernel((x - sample[i]) / bw);
+        }
+
+        return [x, y / bw / n];
+      });
+    }
+
+    kde.kernel = function (x) {
+      if (!arguments.length) return kernel;
+      kernel = x;
+      return kde;
+    };
+
+    kde.sample = function (x) {
+      if (!arguments.length) return sample;
+      sample = x;
+      return kde;
+    };
+
+    kde.bandwidth = function (x) {
+      if (!arguments.length) return bandwidth;
+      bandwidth = functor(x);
+      return kde;
+    };
+
+    return kde;
+  }
+
+  // https://en.wikipedia.org/wiki/Quantile#Quantiles_of_a_population
+
+  function quantilesType7(arr) {
+    var n1 = arr.length - 1;
+
+    var compute = function compute(q) {
+      var index = 1 + q * n1;
+      var lo = Math.floor(index);
+      var h = index - lo;
+      var a = arr[lo - 1];
+      return h === 0 ? a : a + h * (arr[lo] - a);
+    };
+
+    return {
+      min: arr[0],
+      q1: compute(0.25),
+      median: compute(0.5),
+      q3: compute(0.75),
+      max: arr[n1]
+    };
+  }
+  /**
+   * The hinges equal the quartiles for odd n (where n <- length(x))
+   * and differ for even n. Whereas the quartiles only equal observations
+   * for n %% 4 == 1 (n = 1 mod 4), the hinges do so additionally
+   * for n %% 4 == 2 (n = 2 mod 4), and are in the middle of
+   * two observations otherwise.
+   * @param {number[]} arr sorted array
+   */
+
+  function fivenum(arr) {
+    // based on R fivenum
+    var n = arr.length; // assuming R 1 index system, so arr[1] is the first element
+
+    var n4 = Math.floor((n + 3) / 2) / 2;
+
+    var compute = function compute(d) {
+      return 0.5 * (arr[Math.floor(d) - 1] + arr[Math.ceil(d) - 1]);
+    };
+
+    return {
+      min: arr[0],
+      q1: compute(n4),
+      median: compute((n + 1) / 2),
+      q3: compute(n + 1 - n4),
+      max: arr[n - 1]
+    };
+  }
+  /**
+   * compute the whiskers
+   * @param boxplot
+   * @param {number[]} arr sorted array
+   * @param {number} coef
+   */
+
+  function whiskers(boxplot, arr) {
+    var coef = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1.5;
+    var iqr = boxplot.q3 - boxplot.q1; // since top left is max
+
+    var coefValid = typeof coef === ''number'' && coef > 0;
+    var whiskerMin = coefValid ? Math.max(boxplot.min, boxplot.q1 - coef * iqr) : boxplot.min;
+    var whiskerMax = coefValid ? Math.min(boxplot.max, boxplot.q3 + coef * iqr) : boxplot.max;
+
+    if (Array.isArray(arr)) {
+      // compute the closest real element
+      for (var i = 0; i < arr.length; i++) {
+        var v = arr[i];
+
+        if (v >= whiskerMin) {
+          whiskerMin = v;
+          break;
+        }
+      }
+
+      for (var _i = arr.length - 1; _i >= 0; _i--) {
+        var _v = arr[_i];
+
+        if (_v <= whiskerMax) {
+          whiskerMax = _v;
+          break;
+        }
+      }
+    }
+
+    return {
+      whiskerMin: whiskerMin,
+      whiskerMax: whiskerMax
+    };
+  }
+  var defaultStatsOptions = {
+    coef: 1.5,
+    quantiles: 7
+  };
+
+  function determineStatsOptions(options) {
+    var coef = options == null || typeof options.coef !== ''number'' ? defaultStatsOptions.coef : options.coef;
+    var q = options == null ? null : options.quantiles;
+    var quantiles = typeof q === ''function'' ? q : q === ''hinges'' || q === ''fivenum'' ? fivenum : quantilesType7;
+    return {
+      coef: coef,
+      quantiles: quantiles
+    };
+  }
+
+  function boxplotStats(arr, options) {
+    // console.assert(Array.isArray(arr));
+    if (arr.length === 0) {
+      return {
+        min: NaN,
+        max: NaN,
+        median: NaN,
+        q1: NaN,
+        q3: NaN,
+        whiskerMin: NaN,
+        whiskerMax: NaN,
+        outliers: []
+      };
+    }
+
+    arr = arr.filter(function (v) {
+      return typeof v === ''number'' && !isNaN(v);
+    });
+    arr.sort(function (a, b) {
+      return a - b;
+    });
 
-	var root = this,
-		Chart = root.Chart,
-		helpers = Chart.helpers;
+    var _determineStatsOption = determineStatsOptions(options),
+        quantiles = _determineStatsOption.quantiles,
+        coef = _determineStatsOption.coef;
 
-	var defaultConfig = {
-		scaleBeginAtZero : true,
+    var stats = quantiles(arr);
 
-		//Boolean - Whether grid lines are shown across the chart
-		scaleShowGridLines : true,
+    var _whiskers = whiskers(stats, arr, coef),
+        whiskerMin = _whiskers.whiskerMin,
+        whiskerMax = _whiskers.whiskerMax;
 
-		//String - Colour of the grid lines
-		scaleGridLineColor : "rgba(0,0,0,.05)",
+    stats.outliers = arr.filter(function (v) {
+      return v < whiskerMin || v > whiskerMax;
+    });
+    stats.whiskerMin = whiskerMin;
+    stats.whiskerMax = whiskerMax;
+    return stats;
+  }
+  function violinStats(arr, options) {
+    // console.assert(Array.isArray(arr));
+    if (arr.length === 0) {
+      return {};
+    }
+
+    arr = arr.filter(function (v) {
+      return typeof v === ''number'' && !isNaN(v);
+    });
+    arr.sort(function (a, b) {
+      return a - b;
+    });
 
-		//Number - Width of the grid lines
-		scaleGridLineWidth : 1,
+    var _determineStatsOption2 = determineStatsOptions(options),
+        quantiles = _determineStatsOption2.quantiles;
+
+    var stats = quantiles(arr);
+    stats.kde = kde().sample(arr);
+    return stats;
+  }
+  function asBoxPlotStats(value, options) {
+    if (!value) {
+      return null;
+    }
+
+    if (typeof value.median === ''number'' && typeof value.q1 === ''number'' && typeof value.q3 === ''number'') {
+      // sounds good, check for helper
+      if (typeof value.whiskerMin === ''undefined'') {
+        var _determineStatsOption3 = determineStatsOptions(options),
+            coef = _determineStatsOption3.coef;
+
+        var _whiskers2 = whiskers(value, Array.isArray(value.items) ? value.items.slice().sort(function (a, b) {
+          return a - b;
+        }) : null, coef),
+            whiskerMin = _whiskers2.whiskerMin,
+            whiskerMax = _whiskers2.whiskerMax;
+
+        value.whiskerMin = whiskerMin;
+        value.whiskerMax = whiskerMax;
+      }
+
+      return value;
+    }
+
+    if (!Array.isArray(value)) {
+      return undefined;
+    }
+
+    if (value.__stats === undefined) {
+      value.__stats = boxplotStats(value, options);
+    }
+
+    return value.__stats;
+  }
+  function asViolinStats(value, options) {
+    if (!value) {
+      return null;
+    }
+
+    if (typeof value.median === ''number'' && (typeof value.kde === ''function'' || Array.isArray(value.coords))) {
+      return value;
+    }
+
+    if (!Array.isArray(value)) {
+      return undefined;
+    }
+
+    if (value.__kde === undefined) {
+      value.__kde = violinStats(value, options);
+    }
+
+    return value.__kde;
+  }
+  function asValueStats(value, minStats, maxStats, options) {
+    if (typeof value[minStats] === ''number'' && typeof value[maxStats] === ''number'') {
+      return value;
+    }
+
+    if (!Array.isArray(value) || value.length === 0) {
+      return undefined;
+    }
+
+    return asBoxPlotStats(value, options);
+  }
+  function getRightValue(rawValue, options) {
+    if (!rawValue) {
+      return rawValue;
+    }
+
+    if (typeof rawValue === ''number'' || typeof rawValue === ''string'') {
+      return Number(rawValue);
+    }
+
+    var b = asBoxPlotStats(rawValue, options);
+    return b ? b.median : rawValue;
+  }
+  var commonScaleOptions = {
+    ticks: _objectSpread2({
+      minStats: ''min'',
+      maxStats: ''max''
+    }, defaultStatsOptions)
+  };
+  function commonDataLimits(extraCallback) {
+    var _this = this;
+
+    var chart = this.chart;
+    var isHorizontal = this.isHorizontal();
+    var _this$options$ticks = this.options.ticks,
+        minStats = _this$options$ticks.minStats,
+        maxStats = _this$options$ticks.maxStats;
+
+    var matchID = function matchID(meta) {
+      return isHorizontal ? meta.xAxisID === _this.id : meta.yAxisID === _this.id;
+    }; // First Calculate the range
+
+
+    this.min = null;
+    this.max = null; // Regular charts use x, y values
+    // For the boxplot chart we have rawValue.min and rawValue.max for each point
+
+    chart.data.datasets.forEach(function (d, i) {
+      var meta = chart.getDatasetMeta(i);
+
+      if (!chart.isDatasetVisible(i) || !matchID(meta)) {
+        return;
+      }
+
+      d.data.forEach(function (value, j) {
+        if (value == null || meta.data[j].hidden) {
+          return;
+        }
+
+        var stats = asValueStats(value, minStats, maxStats, _this.options.ticks);
+        var minValue;
+        var maxValue;
+
+        if (stats) {
+          minValue = stats[minStats];
+          maxValue = stats[maxStats];
+        } else {
+          // if stats are not available use the plain value
+          var parsed = +_this.getRightValue(value);
+
+          if (isNaN(parsed)) {
+            return;
+          }
+
+          minValue = maxValue = parsed;
+        }
+
+        if (_this.min === null || minValue < _this.min) {
+          _this.min = minValue;
+        }
+
+        if (_this.max === null || maxValue > _this.max) {
+          _this.max = maxValue;
+        }
+
+        if (extraCallback) {
+          extraCallback(stats);
+        }
+      });
+    });
+  }
+  function rnd(seed) {
+    // Adapted from http://indiegamr.com/generate-repeatable-random-numbers-in-js/
+    if (seed === undefined) {
+      seed = Date.now();
+    }
+
+    return function () {
+      seed = (seed * 9301 + 49297) % 233280;
+      return seed / 233280;
+    };
+  }
+
+  var defaults = _objectSpread2({}, Chart.defaults.global.elements.rectangle, {
+    borderWidth: 1,
+    outlierRadius: 2,
+    outlierColor: Chart.defaults.global.elements.rectangle.backgroundColor,
+    medianColor: null,
+    itemRadius: 0,
+    itemStyle: ''circle'',
+    itemBackgroundColor: Chart.defaults.global.elements.rectangle.backgroundColor,
+    itemBorderColor: Chart.defaults.global.elements.rectangle.borderColor,
+    hitPadding: 2,
+    outlierHitRadius: 4,
+    tooltipDecimals: 2
+  });
+  var ArrayElementBase = Chart.Element.extend({
+    isVertical: function isVertical() {
+      return this._view.width !== undefined;
+    },
+    draw: function draw() {// abstract
+    },
+    _drawItems: function _drawItems(vm, container, ctx, vert) {
+      if (vm.itemRadius <= 0 || !container.items || container.items.length <= 0) {
+        return;
+      }
+
+      ctx.save();
+      ctx.strokeStle = vm.itemBorderColor;
+      ctx.fillStyle = vm.itemBackgroundColor; // jitter based on random data
+      // use the datesetindex and index to initialize the random number generator
+
+      var random = rnd(this._datasetIndex * 1000 + this._index);
+
+      if (vert) {
+        container.items.forEach(function (v) {
+          Chart.canvasHelpers.drawPoint(ctx, vm.itemStyle, vm.itemRadius, vm.x - vm.width / 2 + random() * vm.width, v);
+        });
+      } else {
+        container.items.forEach(function (v) {
+          Chart.canvasHelpers.drawPoint(ctx, vm.itemStyle, vm.itemRadius, v, vm.y - vm.height / 2 + random() * vm.height);
+        });
+      }
+
+      ctx.restore();
+    },
+    _drawOutliers: function _drawOutliers(vm, container, ctx, vert) {
+      if (vm.outlierRadius <= 0 || !container.outliers || container.outliers.length === 0) {
+        return;
+      }
+
+      ctx.fillStyle = vm.outlierColor;
+      ctx.beginPath();
+
+      if (vert) {
+        container.outliers.forEach(function (v) {
+          ctx.arc(vm.x, v, vm.outlierRadius, 0, Math.PI * 2);
+        });
+      } else {
+        container.outliers.forEach(function (v) {
+          ctx.arc(v, vm.y, vm.outlierRadius, 0, Math.PI * 2);
+        });
+      }
+
+      ctx.fill();
+      ctx.closePath();
+    },
+    _getBounds: function _getBounds() {
+      // abstract
+      return {
+        left: 0,
+        top: 0,
+        right: 0,
+        bottom: 0
+      };
+    },
+    _getHitBounds: function _getHitBounds() {
+      var padding = this._view.hitPadding;
+
+      var b = this._getBounds();
+
+      return {
+        left: b.left - padding,
+        top: b.top - padding,
+        right: b.right + padding,
+        bottom: b.bottom + padding
+      };
+    },
+    height: function height() {
+      return 0; // abstract
+    },
+    inRange: function inRange(mouseX, mouseY) {
+      if (!this._view) {
+        return false;
+      }
+
+      return this._boxInRange(mouseX, mouseY) || this._outlierIndexInRange(mouseX, mouseY) >= 0;
+    },
+    inLabelRange: function inLabelRange(mouseX, mouseY) {
+      if (!this._view) {
+        return false;
+      }
+
+      var bounds = this._getHitBounds();
+
+      if (this.isVertical()) {
+        return mouseX >= bounds.left && mouseX <= bounds.right;
+      }
+
+      return mouseY >= bounds.top && mouseY <= bounds.bottom;
+    },
+    inXRange: function inXRange(mouseX) {
+      var bounds = this._getHitBounds();
+
+      return mouseX >= bounds.left && mouseX <= bounds.right;
+    },
+    inYRange: function inYRange(mouseY) {
+      var bounds = this._getHitBounds();
+
+      return mouseY >= bounds.top && mouseY <= bounds.bottom;
+    },
+    _outlierIndexInRange: function _outlierIndexInRange(mouseX, mouseY) {
+      var vm = this._view;
+      var hitRadius = vm.outlierHitRadius;
+
+      var outliers = this._getOutliers();
+
+      var vertical = this.isVertical(); // check if along the outlier line
+
+      if (vertical && Math.abs(mouseX - vm.x) > hitRadius || !vertical && Math.abs(mouseY - vm.y) > hitRadius) {
+        return -1;
+      }
+
+      var toCompare = vertical ? mouseY : mouseX;
+
+      for (var i = 0; i < outliers.length; i++) {
+        if (Math.abs(outliers[i] - toCompare) <= hitRadius) {
+          return i;
+        }
+      }
+
+      return -1;
+    },
+    _boxInRange: function _boxInRange(mouseX, mouseY) {
+      var bounds = this._getHitBounds();
+
+      return mouseX >= bounds.left && mouseX <= bounds.right && mouseY >= bounds.top && mouseY <= bounds.bottom;
+    },
+    getCenterPoint: function getCenterPoint() {
+      var _this$_view = this._view,
+          x = _this$_view.x,
+          y = _this$_view.y;
+      return {
+        x: x,
+        y: y
+      };
+    },
+    getArea: function getArea() {
+      return 0; // abstract
+    },
+    _getOutliers: function _getOutliers() {
+      return []; // abstract
+    },
+    tooltipPosition: function tooltipPosition(eventPosition, tooltip) {
+      if (!eventPosition) {
+        // fallback
+        return this.getCenterPoint();
+      }
+
+      delete tooltip._tooltipOutlier;
+      var vm = this._view;
+
+      var index = this._outlierIndexInRange(eventPosition.x, eventPosition.y);
+
+      if (index < 0) {
+        return this.getCenterPoint();
+      }
+
+      tooltip._tooltipOutlier = index;
+
+      if (this.isVertical()) {
+        return {
+          x: vm.x,
+          y: this._getOutliers()[index]
+        };
+      }
+
+      return {
+        x: this._getOutliers()[index],
+        y: vm.y
+      };
+    }
+  });
+
+  Chart.defaults.global.elements.boxandwhiskers = _objectSpread2({}, defaults);
+
+  function transitionBoxPlot(start, view, model, ease) {
+    var keys = Object.keys(model);
+
+    for (var _i = 0, _keys = keys; _i < _keys.length; _i++) {
+      var key = _keys[_i];
+      var target = model[key];
+      var origin = start[key];
+
+      if (origin === target) {
+        continue;
+      }
+
+      if (typeof target === ''number'') {
+        view[key] = origin + (target - origin) * ease;
+        continue;
+      }
+
+      if (Array.isArray(target)) {
+        var v = view[key];
+        var common = Math.min(target.length, origin.length);
+
+        for (var i = 0; i < common; ++i) {
+          v[i] = origin[i] + (target[i] - origin[i]) * ease;
+        }
+      }
+    }
+  }
+
+  var BoxAndWiskers = Chart.elements.BoxAndWhiskers = ArrayElementBase.extend({
+    transition: function transition(ease) {
+      var r = Chart.Element.prototype.transition.call(this, ease);
+      var model = this._model;
+      var start = this._start;
+      var view = this._view; // No animation -> No Transition
+
+      if (!model || ease === 1) {
+        return r;
+      }
+
+      if (start.boxplot == null) {
+        return r; // model === view -> not copied
+      } // create deep copy to avoid alternation
+
+
+      if (model.boxplot === view.boxplot) {
+        view.boxplot = Chart.helpers.clone(view.boxplot);
+      }
+
+      transitionBoxPlot(start.boxplot, view.boxplot, model.boxplot, ease);
+      return r;
+    },
+    draw: function draw() {
+      var ctx = this._chart.ctx;
+      var vm = this._view;
+      var boxplot = vm.boxplot;
+      var vert = this.isVertical();
+
+      this._drawItems(vm, boxplot, ctx, vert);
+
+      ctx.save();
+      ctx.fillStyle = vm.backgroundColor;
+      ctx.strokeStyle = vm.borderColor;
+      ctx.lineWidth = vm.borderWidth;
+
+      this._drawBoxPlot(vm, boxplot, ctx, vert);
+
+      this._drawOutliers(vm, boxplot, ctx, vert);
+
+      ctx.restore();
+    },
+    _drawBoxPlot: function _drawBoxPlot(vm, boxplot, ctx, vert) {
+      if (vert) {
+        this._drawBoxPlotVert(vm, boxplot, ctx);
+      } else {
+        this._drawBoxPlotHoriz(vm, boxplot, ctx);
+      }
+    },
+    _drawBoxPlotVert: function _drawBoxPlotVert(vm, boxplot, ctx) {
+      var x = vm.x;
+      var width = vm.width;
+      var x0 = x - width / 2; // Draw the q1>q3 box
+
+      if (boxplot.q3 > boxplot.q1) {
+        ctx.fillRect(x0, boxplot.q1, width, boxplot.q3 - boxplot.q1);
+      } else {
+        ctx.fillRect(x0, boxplot.q3, width, boxplot.q1 - boxplot.q3);
+      } // Draw the median line
+
+
+      ctx.save();
+
+      if (vm.medianColor) {
+        ctx.strokeStyle = vm.medianColor;
+      }
+
+      ctx.beginPath();
+      ctx.moveTo(x0, boxplot.median);
+      ctx.lineTo(x0 + width, boxplot.median);
+      ctx.closePath();
+      ctx.stroke();
+      ctx.restore(); // Draw the border around the main q1>q3 box
+
+      if (boxplot.q3 > boxplot.q1) {
+        ctx.strokeRect(x0, boxplot.q1, width, boxplot.q3 - boxplot.q1);
+      } else {
+        ctx.strokeRect(x0, boxplot.q3, width, boxplot.q1 - boxplot.q3);
+      } // Draw the whiskers
+
+
+      ctx.beginPath();
+      ctx.moveTo(x0, boxplot.whiskerMin);
+      ctx.lineTo(x0 + width, boxplot.whiskerMin);
+      ctx.moveTo(x, boxplot.whiskerMin);
+      ctx.lineTo(x, boxplot.q1);
+      ctx.moveTo(x0, boxplot.whiskerMax);
+      ctx.lineTo(x0 + width, boxplot.whiskerMax);
+      ctx.moveTo(x, boxplot.whiskerMax);
+      ctx.lineTo(x, boxplot.q3);
+      ctx.closePath();
+      ctx.stroke();
+    },
+    _drawBoxPlotHoriz: function _drawBoxPlotHoriz(vm, boxplot, ctx) {
+      var y = vm.y;
+      var height = vm.height;
+      var y0 = y - height / 2; // Draw the q1>q3 box
+
+      if (boxplot.q3 > boxplot.q1) {
+        ctx.fillRect(boxplot.q1, y0, boxplot.q3 - boxplot.q1, height);
+      } else {
+        ctx.fillRect(boxplot.q3, y0, boxplot.q1 - boxplot.q3, height);
+      } // Draw the median line
+
+
+      ctx.save();
+
+      if (vm.medianColor) {
+        ctx.strokeStyle = vm.medianColor;
+      }
+
+      ctx.beginPath();
+      ctx.moveTo(boxplot.median, y0);
+      ctx.lineTo(boxplot.median, y0 + height);
+      ctx.closePath();
+      ctx.stroke();
+      ctx.restore(); // Draw the border around the main q1>q3 box
+
+      if (boxplot.q3 > boxplot.q1) {
+        ctx.strokeRect(boxplot.q1, y0, boxplot.q3 - boxplot.q1, height);
+      } else {
+        ctx.strokeRect(boxplot.q3, y0, boxplot.q1 - boxplot.q3, height);
+      } // Draw the whiskers
+
+
+      ctx.beginPath();
+      ctx.moveTo(boxplot.whiskerMin, y0);
+      ctx.lineTo(boxplot.whiskerMin, y0 + height);
+      ctx.moveTo(boxplot.whiskerMin, y);
+      ctx.lineTo(boxplot.q1, y);
+      ctx.moveTo(boxplot.whiskerMax, y0);
+      ctx.lineTo(boxplot.whiskerMax, y0 + height);
+      ctx.moveTo(boxplot.whiskerMax, y);
+      ctx.lineTo(boxplot.q3, y);
+      ctx.closePath();
+      ctx.stroke();
+    },
+    _getBounds: function _getBounds() {
+      var vm = this._view;
+      var vert = this.isVertical();
+      var boxplot = vm.boxplot;
+
+      if (!boxplot) {
+        return {
+          left: 0,
+          top: 0,
+          right: 0,
+          bottom: 0
+        };
+      }
+
+      if (vert) {
+        var x = vm.x,
+            width = vm.width;
+        var x0 = x - width / 2;
+        return {
+          left: x0,
+          top: boxplot.whiskerMax,
+          right: x0 + width,
+          bottom: boxplot.whiskerMin
+        };
+      }
+
+      var y = vm.y,
+          height = vm.height;
+      var y0 = y - height / 2;
+      return {
+        left: boxplot.whiskerMin,
+        top: y0,
+        right: boxplot.whiskerMax,
+        bottom: y0 + height
+      };
+    },
+    height: function height() {
+      var vm = this._view;
+      return vm.base - Math.min(vm.boxplot.q1, vm.boxplot.q3);
+    },
+    getArea: function getArea() {
+      var vm = this._view;
+      var iqr = Math.abs(vm.boxplot.q3 - vm.boxplot.q1);
+
+      if (this.isVertical()) {
+        return iqr * vm.width;
+      }
+
+      return iqr * vm.height;
+    },
+    _getOutliers: function _getOutliers() {
+      return this._view.boxplot ? this._view.boxplot.outliers || [] : [];
+    }
+  });
+
+  Chart.defaults.global.elements.violin = _objectSpread2({
+    points: 100
+  }, defaults);
+
+  function transitionViolin(start, view, model, ease) {
+    var keys = Object.keys(model);
+
+    for (var _i = 0, _keys = keys; _i < _keys.length; _i++) {
+      var key = _keys[_i];
+      var target = model[key];
+      var origin = start[key];
+
+      if (origin === target) {
+        continue;
+      }
+
+      if (typeof target === ''number'') {
+        view[key] = origin + (target - origin) * ease;
+        continue;
+      }
+
+      if (key === ''coords'') {
+        var v = view[key];
+        var common = Math.min(target.length, origin.length);
+
+        for (var i = 0; i < common; ++i) {
+          v[i].v = origin[i].v + (target[i].v - origin[i].v) * ease;
+          v[i].estimate = origin[i].estimate + (target[i].estimate - origin[i].estimate) * ease;
+        }
+      }
+    }
+  }
+
+  var Violin = Chart.elements.Violin = ArrayElementBase.extend({
+    transition: function transition(ease) {
+      var r = Chart.Element.prototype.transition.call(this, ease);
+      var model = this._model;
+      var start = this._start;
+      var view = this._view; // No animation -> No Transition
+
+      if (!model || ease === 1) {
+        return r;
+      }
+
+      if (start.violin == null) {
+        return r; // model === view -> not copied
+      } // create deep copy to avoid alternation
+
+
+      if (model.violin === view.violin) {
+        view.violin = Chart.helpers.clone(view.violin);
+      }
+
+      transitionViolin(start.violin, view.violin, model.violin, ease);
+      return r;
+    },
+    draw: function draw() {
+      var ctx = this._chart.ctx;
+      var vm = this._view;
+      var violin = vm.violin;
+      var vert = this.isVertical();
+
+      this._drawItems(vm, violin, ctx, vert);
+
+      ctx.save();
+      ctx.fillStyle = vm.backgroundColor;
+      ctx.strokeStyle = vm.borderColor;
+      ctx.lineWidth = vm.borderWidth;
+      var coords = violin.coords;
+      Chart.canvasHelpers.drawPoint(ctx, ''rectRot'', 5, vm.x, vm.y);
+      ctx.stroke();
+      ctx.beginPath();
+
+      if (vert) {
+        var x = vm.x;
+        var width = vm.width;
+        var factor = width / 2 / violin.maxEstimate;
+        ctx.moveTo(x, violin.min);
+        coords.forEach(function (_ref) {
+          var v = _ref.v,
+              estimate = _ref.estimate;
+          ctx.lineTo(x - estimate * factor, v);
+        });
+        ctx.lineTo(x, violin.max);
+        ctx.moveTo(x, violin.min);
+        coords.forEach(function (_ref2) {
+          var v = _ref2.v,
+              estimate = _ref2.estimate;
+          ctx.lineTo(x + estimate * factor, v);
+        });
+        ctx.lineTo(x, violin.max);
+      } else {
+        var y = vm.y;
+        var height = vm.height;
+
+        var _factor = height / 2 / violin.maxEstimate;
+
+        ctx.moveTo(violin.min, y);
+        coords.forEach(function (_ref3) {
+          var v = _ref3.v,
+              estimate = _ref3.estimate;
+          ctx.lineTo(v, y - estimate * _factor);
+        });
+        ctx.lineTo(violin.max, y);
+        ctx.moveTo(violin.min, y);
+        coords.forEach(function (_ref4) {
+          var v = _ref4.v,
+              estimate = _ref4.estimate;
+          ctx.lineTo(v, y + estimate * _factor);
+        });
+        ctx.lineTo(violin.max, y);
+      }
+
+      ctx.stroke();
+      ctx.fill();
+      ctx.closePath();
+
+      this._drawOutliers(vm, violin, ctx, vert);
+
+      ctx.restore();
+    },
+    _getBounds: function _getBounds() {
+      var vm = this._view;
+      var vert = this.isVertical();
+      var violin = vm.violin;
+
+      if (vert) {
+        var x = vm.x,
+            width = vm.width;
+        var x0 = x - width / 2;
+        return {
+          left: x0,
+          top: violin.max,
+          right: x0 + width,
+          bottom: violin.min
+        };
+      }
+
+      var y = vm.y,
+          height = vm.height;
+      var y0 = y - height / 2;
+      return {
+        left: violin.min,
+        top: y0,
+        right: violin.max,
+        bottom: y0 + height
+      };
+    },
+    height: function height() {
+      var vm = this._view;
+      return vm.base - Math.min(vm.violin.min, vm.violin.max);
+    },
+    getArea: function getArea() {
+      var vm = this._view;
+      var iqr = Math.abs(vm.violin.max - vm.violin.min);
+
+      if (this.isVertical()) {
+        return iqr * vm.width;
+      }
+
+      return iqr * vm.height;
+    },
+    _getOutliers: function _getOutliers() {
+      return this._view.violin.outliers || [];
+    }
+  });
+
+  var verticalDefaults = {
+    scales: {
+      yAxes: [{
+        type: ''arrayLinear''
+      }]
+    }
+  };
+  var horizontalDefaults = {
+    scales: {
+      xAxes: [{
+        type: ''arrayLinear''
+      }]
+    }
+  };
+  function toFixed(value) {
+    var decimals = this._chart.config.options.tooltipDecimals; // inject number of decimals from config
+
+    if (decimals == null || typeof decimals !== ''number'' || decimals < 0) {
+      return value;
+    }
+
+    return Number.parseFloat(value).toFixed(decimals);
+  }
+  var configKeys = [''outlierRadius'', ''itemRadius'', ''itemStyle'', ''itemBackgroundColor'', ''itemBorderColor'', ''outlierColor'', ''medianColor'', ''hitPadding'', ''outlierHitRadius''];
+  var configKeyIsColor = [false, false, false, true, true, true, true, false, false];
+  var array = {
+    _elementOptions: function _elementOptions() {
+      return {};
+    },
+    updateElement: function updateElement(elem, index, reset) {
+      var dataset = this.getDataset();
+      var custom = elem.custom || {};
+
+      var options = this._elementOptions();
+
+      Chart.controllers.bar.prototype.updateElement.call(this, elem, index, reset);
+      var resolve = Chart.helpers.options.resolve; // Scriptable options
+
+      var context = {
+        chart: this.chart,
+        dataIndex: index,
+        dataset: dataset,
+        datasetIndex: this.index
+      };
+      configKeys.forEach(function (item) {
+        elem._model[item] = resolve([custom[item], dataset[item], options[item]], context, index);
+      });
+    },
+    _calculateCommonModel: function _calculateCommonModel(r, data, container, scale) {
+      if (container.outliers) {
+        r.outliers = container.outliers.map(function (d) {
+          return scale.getPixelForValue(Number(d));
+        });
+      }
+
+      if (Array.isArray(data)) {
+        r.items = data.map(function (d) {
+          return scale.getPixelForValue(Number(d));
+        });
+      } else if (container.items) {
+        r.items = container.items.map(function (d) {
+          return scale.getPixelForValue(Number(d));
+        });
+      }
+    },
+    setHoverStyle: function setHoverStyle(element) {
+      Chart.controllers.bar.prototype.setHoverStyle.call(this, element);
+      var dataset = this.chart.data.datasets[element._datasetIndex];
+      var index = element._index;
+      var custom = element.custom || {};
+      var model = element._model;
+      var getHoverColor = Chart.helpers.getHoverColor;
+      var resolve = Chart.helpers.options.resolve;
+      configKeys.forEach(function (item, i) {
+        element.$previousStyle[item] = model[item];
+        var hoverKey = "hover".concat(item.charAt(0).toUpperCase()).concat(item.slice(1));
+        var modelValue = configKeyIsColor[i] && model[item] != null ? getHoverColor(model[item]) : model[item];
+        element._model[item] = resolve([custom[hoverKey], dataset[hoverKey], modelValue], undefined, index);
+      });
+    }
+  };
+
+  function boxplotTooltip(item, data) {
+    var value = data.datasets[item.datasetIndex].data[item.index];
+
+    var options = this._chart.getDatasetMeta(item.datasetIndex).controller._getValueScale().options.ticks;
+
+    var b = asBoxPlotStats(value, options);
+    var hoveredOutlierIndex = this._tooltipOutlier == null ? -1 : this._tooltipOutlier;
+    var label = this._options.callbacks.boxplotLabel;
+
+    for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
+      args[_key - 2] = arguments[_key];
+    }
+
+    return label.apply(this, [item, data, b, hoveredOutlierIndex].concat(args));
+  }
+
+  var defaults$1 = {
+    tooltips: {
+      position: ''boxplot'',
+      callbacks: {
+        label: boxplotTooltip,
+        boxplotLabel: function boxplotLabel(item, data, b, hoveredOutlierIndex) {
+          var datasetLabel = data.datasets[item.datasetIndex].label || '''';
+          var label = "".concat(datasetLabel, " ").concat(typeof item.xLabel === ''string'' ? item.xLabel : item.yLabel);
+
+          if (!b) {
+            return "".concat(label, " (NaN)");
+          }
+
+          if (hoveredOutlierIndex >= 0) {
+            var outlier = b.outliers[hoveredOutlierIndex];
+            return "".concat(label, " (outlier: ").concat(toFixed.call(this, outlier), ")");
+          }
+
+          return "".concat(label, " (min: ").concat(toFixed.call(this, b.min), ", q1: ").concat(toFixed.call(this, b.q1), ", median: ").concat(toFixed.call(this, b.median), ", q3: ").concat(toFixed.call(this, b.q3), ", max: ").concat(toFixed.call(this, b.max), ")");
+        }
+      }
+    }
+  };
+  Chart.defaults.boxplot = Chart.helpers.merge({}, [Chart.defaults.bar, verticalDefaults, defaults$1]);
+  Chart.defaults.horizontalBoxplot = Chart.helpers.merge({}, [Chart.defaults.horizontalBar, horizontalDefaults, defaults$1]);
+
+  if (Chart.defaults.global.datasets && Chart.defaults.global.datasets.bar) {
+    Chart.defaults.global.datasets.boxplot = _objectSpread2({}, Chart.defaults.global.datasets.bar);
+  }
+
+  if (Chart.defaults.global.datasets && Chart.defaults.global.datasets.horizontalBar) {
+    Chart.defaults.global.datasets.horizontalBoxplot = _objectSpread2({}, Chart.defaults.global.datasets.horizontalBar);
+  }
+
+  var boxplot = _objectSpread2({}, array, {
+    dataElementType: Chart.elements.BoxAndWhiskers,
+    _elementOptions: function _elementOptions() {
+      return this.chart.options.elements.boxandwhiskers;
+    },
+
+    /**
+     * @private
+     */
+    _updateElementGeometry: function _updateElementGeometry(elem, index, reset) {
+      var _Chart$controllers$ba;
+
+      for (var _len2 = arguments.length, args = new Array(_len2 > 3 ? _len2 - 3 : 0), _key2 = 3; _key2 < _len2; _key2++) {
+        args[_key2 - 3] = arguments[_key2];
+      }
+
+      (_Chart$controllers$ba = Chart.controllers.bar.prototype._updateElementGeometry).call.apply(_Chart$controllers$ba, [this, elem, index, reset].concat(args));
+
+      elem._model.boxplot = this._calculateBoxPlotValuesPixels(this.index, index);
+    },
+
+    /**
+     * @private
+     */
+    _calculateBoxPlotValuesPixels: function _calculateBoxPlotValuesPixels(datasetIndex, index) {
+      var scale = this._getValueScale();
+
+      var data = this.chart.data.datasets[datasetIndex].data[index];
+
+      if (!data) {
+        return null;
+      }
+
+      var v = asBoxPlotStats(data, scale.options.ticks);
+      var r = {};
+      Object.keys(v).forEach(function (key) {
+        if (key !== ''outliers'' && key !== ''items'') {
+          r[key] = scale.getPixelForValue(Number(v[key]));
+        }
+      });
+
+      this._calculateCommonModel(r, data, v, scale);
+
+      return r;
+    }
+  });
+  /**
+   * This class is based off controller.bar.js from the upstream Chart.js library
+   */
+
+
+  var BoxPlot = Chart.controllers.boxplot = Chart.controllers.bar.extend(boxplot);
+  var HorizontalBoxPlot = Chart.controllers.horizontalBoxplot = Chart.controllers.horizontalBar.extend(boxplot);
+
+  function violinTooltip(item, data) {
+    var value = data.datasets[item.datasetIndex].data[item.index];
+
+    var options = this._chart.getDatasetMeta(item.datasetIndex).controller._getValueScale().options.ticks;
+
+    var v = asViolinStats(value, options);
+    var label = this._options.callbacks.violinLabel;
+
+    for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
+      args[_key - 2] = arguments[_key];
+    }
+
+    return label.apply(this, [item, data, v].concat(args));
+  }
+
+  var defaults$2 = {
+    tooltips: {
+      callbacks: {
+        label: violinTooltip,
+        violinLabel: function violinLabel(item, data) {
+          var datasetLabel = data.datasets[item.datasetIndex].label || '''';
+          var value = item.value;
+          var label = "".concat(datasetLabel, " ").concat(typeof item.xLabel === ''string'' ? item.xLabel : item.yLabel);
+          return "".concat(label, " (").concat(toFixed.call(this, value), ")");
+        }
+      }
+    }
+  };
+  Chart.defaults.violin = Chart.helpers.merge({}, [Chart.defaults.bar, verticalDefaults, defaults$2]);
+  Chart.defaults.horizontalViolin = Chart.helpers.merge({}, [Chart.defaults.horizontalBar, horizontalDefaults, defaults$2]);
+
+  if (Chart.defaults.global.datasets && Chart.defaults.global.datasets.bar) {
+    Chart.defaults.global.datasets.violin = _objectSpread2({}, Chart.defaults.global.datasets.bar);
+  }
+
+  if (Chart.defaults.global.datasets && Chart.defaults.global.datasets.horizontalBar) {
+    Chart.defaults.global.datasets.horizontalViolin = _objectSpread2({}, Chart.defaults.global.datasets.horizontalBar);
+  }
+
+  var controller = _objectSpread2({}, array, {
+    dataElementType: Chart.elements.Violin,
+    _elementOptions: function _elementOptions() {
+      return this.chart.options.elements.violin;
+    },
+
+    /**
+     * @private
+     */
+    _updateElementGeometry: function _updateElementGeometry(elem, index, reset) {
+      var _Chart$controllers$ba;
+
+      for (var _len2 = arguments.length, args = new Array(_len2 > 3 ? _len2 - 3 : 0), _key2 = 3; _key2 < _len2; _key2++) {
+        args[_key2 - 3] = arguments[_key2];
+      }
+
+      (_Chart$controllers$ba = Chart.controllers.bar.prototype._updateElementGeometry).call.apply(_Chart$controllers$ba, [this, elem, index, reset].concat(args));
+
+      var custom = elem.custom || {};
+
+      var options = this._elementOptions();
+
+      elem._model.violin = this._calculateViolinValuesPixels(this.index, index, custom.points !== undefined ? custom.points : options.points);
+    },
+
+    /**
+     * @private
+     */
+    _calculateViolinValuesPixels: function _calculateViolinValuesPixels(datasetIndex, index, points) {
+      var scale = this._getValueScale();
+
+      var data = this.chart.data.datasets[datasetIndex].data[index];
+      var violin = asViolinStats(data, scale.options.ticks);
+
+      if (!Array.isArray(data) && typeof data === ''number'' && !Number.isNaN || violin == null) {
+        return {
+          min: data,
+          max: data,
+          median: data,
+          coords: [{
+            v: data,
+            estimate: Number.NEGATIVE_INFINITY
+          }],
+          maxEstimate: Number.NEGATIVE_INFINITY
+        };
+      }
+
+      var range = violin.max - violin.min;
+      var samples = [];
+      var inc = range / points;
+
+      for (var v = violin.min; v <= violin.max && inc > 0; v += inc) {
+        samples.push(v);
+      }
+
+      if (samples[samples.length - 1] !== violin.max) {
+        samples.push(violin.max);
+      }
+
+      var coords = violin.coords || violin.kde(samples).map(function (v) {
+        return {
+          v: v[0],
+          estimate: v[1]
+        };
+      });
+      var r = {
+        min: scale.getPixelForValue(violin.min),
+        max: scale.getPixelForValue(violin.max),
+        median: scale.getPixelForValue(violin.median),
+        coords: coords.map(function (_ref) {
+          var v = _ref.v,
+              estimate = _ref.estimate;
+          return {
+            v: scale.getPixelForValue(v),
+            estimate: estimate
+          };
+        }),
+        maxEstimate: coords.reduce(function (a, d) {
+          return Math.max(a, d.estimate);
+        }, Number.NEGATIVE_INFINITY)
+      };
+
+      this._calculateCommonModel(r, data, violin, scale);
+
+      return r;
+    }
+  });
+  /**
+   * This class is based off controller.bar.js from the upstream Chart.js library
+   */
+
+
+  var Violin$1 = Chart.controllers.violin = Chart.controllers.bar.extend(controller);
+  var HorizontalViolin = Chart.controllers.horizontalViolin = Chart.controllers.horizontalBar.extend(controller);
+
+  var helpers = Chart.helpers;
+  var ArrayLinearScaleOptions = helpers.merge({}, [commonScaleOptions, Chart.scaleService.getScaleDefaults(''linear'')]);
+  var ArrayLinearScale = Chart.scaleService.getScaleConstructor(''linear'').extend({
+    getRightValue: function getRightValue$1(rawValue) {
+      return Chart.LinearScaleBase.prototype.getRightValue.call(this, getRightValue(rawValue, this.options.ticks));
+    },
+    _parseValue: function _parseValue(rawValue) {
+      return Chart.LinearScaleBase.prototype._parseValue.call(this, getRightValue(rawValue, this.options.ticks));
+    },
+    determineDataLimits: function determineDataLimits() {
+      commonDataLimits.call(this); // Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
+
+      this.handleTickRangeOptions();
+    }
+  });
+  Chart.scaleService.registerScaleType(''arrayLinear'', ArrayLinearScale, ArrayLinearScaleOptions);
+
+  var helpers$1 = Chart.helpers;
+  var ArrayLogarithmicScaleOptions = helpers$1.merge({}, [commonScaleOptions, Chart.scaleService.getScaleDefaults(''logarithmic'')]);
+  var ArrayLogarithmicScale = Chart.scaleService.getScaleConstructor(''logarithmic'').extend({
+    getRightValue: function getRightValue$1(rawValue) {
+      return Chart.LinearScaleBase.prototype.getRightValue.call(this, getRightValue(rawValue, this.options.ticks));
+    },
+    _parseValue: function _parseValue(rawValue) {
+      return Chart.LinearScaleBase.prototype._parseValue.call(this, getRightValue(rawValue, this.options.ticks));
+    },
+    determineDataLimits: function determineDataLimits() {
+      var _this = this;
+
+      // Add whitespace around bars. Axis shouldn''t go exactly from min to max
+      var tickOpts = this.options.ticks;
+      this.minNotZero = null;
+      commonDataLimits.call(this, function (boxPlot) {
+        var value = boxPlot[tickOpts.minStats];
+
+        if (value !== 0 && (_this.minNotZero === null || value < _this.minNotZero)) {
+          _this.minNotZero = value;
+        }
+      });
+      this.min = helpers$1.valueOrDefault(tickOpts.min, this.min - this.min * 0.05);
+      this.max = helpers$1.valueOrDefault(tickOpts.max, this.max + this.max * 0.05);
+
+      if (this.min === this.max) {
+        if (this.min !== 0 && this.min !== null) {
+          this.min = Math.pow(10, Math.floor(helpers$1.log10(this.min)) - 1);
+          this.max = Math.pow(10, Math.floor(helpers$1.log10(this.max)) + 1);
+        } else {
+          this.min = 1;
+          this.max = 10;
+        }
+      }
+    }
+  });
+  Chart.scaleService.registerScaleType(''arrayLogarithmic'', ArrayLogarithmicScale, ArrayLogarithmicScaleOptions);
+
+  function boxplotPositioner(elements, eventPosition) {
+    var _this = this;
+
+    if (!elements.length) {
+      return false;
+    }
+
+    var _elements$reduce = elements.reduce(function (_ref, el) {
+      var _ref2 = _slicedToArray(_ref, 3),
+          xi = _ref2[0],
+          ci = _ref2[1],
+          counti = _ref2[2];
+
+      if (el && el.hasValue()) {
+        var pos = el.tooltipPosition(eventPosition, _this);
+        return [xi + pos.x, ci + pos.y, counti + 1];
+      }
+
+      return [xi, ci, counti];
+    }, [0, 0, 0]),
+        _elements$reduce2 = _slicedToArray(_elements$reduce, 3),
+        x = _elements$reduce2[0],
+        y = _elements$reduce2[1],
+        count = _elements$reduce2[2];
+
+    return {
+      x: x / count,
+      y: y / count
+    };
+  }
+  Chart.Tooltip.positioners.boxplot = boxplotPositioner;
+
+  exports.ArrayLinearScale = ArrayLinearScale;
+  exports.ArrayLogarithmicScale = ArrayLogarithmicScale;
+  exports.BoxAndWhiskers = BoxAndWiskers;
+  exports.BoxPlot = BoxPlot;
+  exports.HorizontalBoxPlot = HorizontalBoxPlot;
+  exports.HorizontalViolin = HorizontalViolin;
+  exports.Violin = Violin;
+
+  Object.defineProperty(exports, ''__esModule'', { value: true });
+
+}));
+'
+]
 
-		//Boolean - If there is a stroke on each bar
-		barShowStroke : true,
+{ #category : #'as yet unclassified' }
+ChartJsLibrary >> ChartJs [
+	^ '/*!
+ * Chart.js v2.8.0-rc.1
+ * https://www.chartjs.org
+ * (c) 2019 Chart.js Contributors
+ * Released under the MIT License
+ */
+(function (global, factory) {
+typeof exports === ''object'' && typeof module !== ''undefined'' ? module.exports = factory(function() { try { return require(''moment''); } catch(e) { } }()) :
+typeof define === ''function'' && define.amd ? define([''require''], function(require) { return factory(function() { try { return require(''moment''); } catch(e) { } }()); }) :
+(global.Chart = factory(global.moment));
+}(this, (function (moment) { ''use strict'';
+
+moment = moment && moment.hasOwnProperty(''default'') ? moment[''default''] : moment;
+
+/* MIT license */
+
+var conversions = {
+  rgb2hsl: rgb2hsl,
+  rgb2hsv: rgb2hsv,
+  rgb2hwb: rgb2hwb,
+  rgb2cmyk: rgb2cmyk,
+  rgb2keyword: rgb2keyword,
+  rgb2xyz: rgb2xyz,
+  rgb2lab: rgb2lab,
+  rgb2lch: rgb2lch,
+
+  hsl2rgb: hsl2rgb,
+  hsl2hsv: hsl2hsv,
+  hsl2hwb: hsl2hwb,
+  hsl2cmyk: hsl2cmyk,
+  hsl2keyword: hsl2keyword,
+
+  hsv2rgb: hsv2rgb,
+  hsv2hsl: hsv2hsl,
+  hsv2hwb: hsv2hwb,
+  hsv2cmyk: hsv2cmyk,
+  hsv2keyword: hsv2keyword,
+
+  hwb2rgb: hwb2rgb,
+  hwb2hsl: hwb2hsl,
+  hwb2hsv: hwb2hsv,
+  hwb2cmyk: hwb2cmyk,
+  hwb2keyword: hwb2keyword,
+
+  cmyk2rgb: cmyk2rgb,
+  cmyk2hsl: cmyk2hsl,
+  cmyk2hsv: cmyk2hsv,
+  cmyk2hwb: cmyk2hwb,
+  cmyk2keyword: cmyk2keyword,
+
+  keyword2rgb: keyword2rgb,
+  keyword2hsl: keyword2hsl,
+  keyword2hsv: keyword2hsv,
+  keyword2hwb: keyword2hwb,
+  keyword2cmyk: keyword2cmyk,
+  keyword2lab: keyword2lab,
+  keyword2xyz: keyword2xyz,
+
+  xyz2rgb: xyz2rgb,
+  xyz2lab: xyz2lab,
+  xyz2lch: xyz2lch,
+
+  lab2xyz: lab2xyz,
+  lab2rgb: lab2rgb,
+  lab2lch: lab2lch,
+
+  lch2lab: lch2lab,
+  lch2xyz: lch2xyz,
+  lch2rgb: lch2rgb
+};
+
+
+function rgb2hsl(rgb) {
+  var r = rgb[0]/255,
+      g = rgb[1]/255,
+      b = rgb[2]/255,
+      min = Math.min(r, g, b),
+      max = Math.max(r, g, b),
+      delta = max - min,
+      h, s, l;
+
+  if (max == min)
+    h = 0;
+  else if (r == max)
+    h = (g - b) / delta;
+  else if (g == max)
+    h = 2 + (b - r) / delta;
+  else if (b == max)
+    h = 4 + (r - g)/ delta;
+
+  h = Math.min(h * 60, 360);
+
+  if (h < 0)
+    h += 360;
+
+  l = (min + max) / 2;
+
+  if (max == min)
+    s = 0;
+  else if (l <= 0.5)
+    s = delta / (max + min);
+  else
+    s = delta / (2 - max - min);
+
+  return [h, s * 100, l * 100];
+}
 
-		//Number - Pixel width of the bar stroke
-		barStrokeWidth : 2,
+function rgb2hsv(rgb) {
+  var r = rgb[0],
+      g = rgb[1],
+      b = rgb[2],
+      min = Math.min(r, g, b),
+      max = Math.max(r, g, b),
+      delta = max - min,
+      h, s, v;
+
+  if (max == 0)
+    s = 0;
+  else
+    s = (delta/max * 1000)/10;
+
+  if (max == min)
+    h = 0;
+  else if (r == max)
+    h = (g - b) / delta;
+  else if (g == max)
+    h = 2 + (b - r) / delta;
+  else if (b == max)
+    h = 4 + (r - g) / delta;
+
+  h = Math.min(h * 60, 360);
+
+  if (h < 0)
+    h += 360;
+
+  v = ((max / 255) * 1000) / 10;
+
+  return [h, s, v];
+}
 
-		//Number - Spacing between each of the X value sets
-		barValueSpacing : 5,
+function rgb2hwb(rgb) {
+  var r = rgb[0],
+      g = rgb[1],
+      b = rgb[2],
+      h = rgb2hsl(rgb)[0],
+      w = 1/255 * Math.min(r, Math.min(g, b)),
+      b = 1 - 1/255 * Math.max(r, Math.max(g, b));
 
-		//Boolean - Whether bars should be rendered on a percentage base
-		relativeBars : false,
+  return [h, w * 100, b * 100];
+}
 
-		//String - A legend template
-		legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].fillColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>",
+function rgb2cmyk(rgb) {
+  var r = rgb[0] / 255,
+      g = rgb[1] / 255,
+      b = rgb[2] / 255,
+      c, m, y, k;
+
+  k = Math.min(1 - r, 1 - g, 1 - b);
+  c = (1 - r - k) / (1 - k) || 0;
+  m = (1 - g - k) / (1 - k) || 0;
+  y = (1 - b - k) / (1 - k) || 0;
+  return [c * 100, m * 100, y * 100, k * 100];
+}
 
-		//Boolean - Show total legend
-		showTotal: false,
+function rgb2keyword(rgb) {
+  return reverseKeywords[JSON.stringify(rgb)];
+}
 
-		//String - Color of total legend
-		totalColor: ''#fff'',
+function rgb2xyz(rgb) {
+  var r = rgb[0] / 255,
+      g = rgb[1] / 255,
+      b = rgb[2] / 255;
 
-		//String - Total Label
-		totalLabel: ''Total''
-	};
+  // assume sRGB
+  r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
+  g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
+  b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);
 
-	Chart.Type.extend({
-		name: "BoxPlot",
-		defaults : defaultConfig,
-		initialize:  function(data){
-			//Expose options as a scope variable here so we can access it in the ScaleClass
-			var options = this.options;
-
-			this.ScaleClass = Chart.Scale.extend({
-				offsetGridLines : true,
-				calculateBarX : function(datasetIndex, barIndex){
-					var cbx = this.calculateX(datasetIndex);
-					return cbx;
-				},
-				calculateBarY : function(datasets, dsIndex, barIndex, value){
-					var offset = 0,
-						sum = 0;
+  var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
+  var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
+  var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);
 
+  return [x * 100, y *100, z * 100];
+}
 
-					if(i === dsIndex && value) {
-						offset += value;
-					} else {
-						offset = offset + datasets[dsIndex].bars[barIndex].value;
-					}
+function rgb2lab(rgb) {
+  var xyz = rgb2xyz(rgb),
+        x = xyz[0],
+        y = xyz[1],
+        z = xyz[2],
+        l, a, b;
 
-					if(options.relativeBars) {
-						for(var i = 0; i < datasets.length; i++) {
-							sum += datasets[i].bars[barIndex].value;
-						}
-						offset = offset / sum * 100;
-					}
+  x /= 95.047;
+  y /= 100;
+  z /= 108.883;
 
-					return this.calculateY(offset);
-				},
-				calculateBaseWidth : function(){
-					return (this.calculateX(1) - this.calculateX(0)) - (2*options.barValueSpacing);
-				},
-				calculateBaseHeight : function(){
-					return (this.calculateY(1) - this.calculateY(0));
-				},
-				calculateBarWidth : function(datasetCount){
-					//The padding between datasets is to the right of each bar, providing that there are more than 1 dataset
-					return this.calculateBaseWidth();
-				},
-				calculateBarHeight : function(datasets, dsIndex, barIndex, value) {
-					if(!value) {
-						value = datasets[dsIndex].bars[barIndex].value;
-					}
-					if(options.relativeBars) {
-						var sum = 0;
+  x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
+  y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
+  z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);
 
-						for(var i = 0; i < datasets.length; i++) {
-							sum += datasets[i].bars[barIndex].value;
-						}
+  l = (116 * y) - 16;
+  a = 500 * (x - y);
+  b = 200 * (y - z);
 
-						value = value / sum * 100;
-					}
+  return [l, a, b];
+}
 
-					return this.calculateY(value);
-				}
-			});
+function rgb2lch(args) {
+  return lab2lch(rgb2lab(args));
+}
 
-			this.datasets = [];
+function hsl2rgb(hsl) {
+  var h = hsl[0] / 360,
+      s = hsl[1] / 100,
+      l = hsl[2] / 100,
+      t1, t2, t3, rgb, val;
+
+  if (s == 0) {
+    val = l * 255;
+    return [val, val, val];
+  }
+
+  if (l < 0.5)
+    t2 = l * (1 + s);
+  else
+    t2 = l + s - l * s;
+  t1 = 2 * l - t2;
+
+  rgb = [0, 0, 0];
+  for (var i = 0; i < 3; i++) {
+    t3 = h + 1 / 3 * - (i - 1);
+    t3 < 0 && t3++;
+    t3 > 1 && t3--;
+
+    if (6 * t3 < 1)
+      val = t1 + (t2 - t1) * 6 * t3;
+    else if (2 * t3 < 1)
+      val = t2;
+    else if (3 * t3 < 2)
+      val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
+    else
+      val = t1;
+
+    rgb[i] = val * 255;
+  }
+
+  return rgb;
+}
 
-			//Set up tooltip events on the chart
-			if (this.options.showTooltips){
-				helpers.bindEvents(this, this.options.tooltipEvents, function(evt){
-					var activeBars = (evt.type !== ''mouseout'') ? this.getBarsAtEvent(evt) : [];
+function hsl2hsv(hsl) {
+  var h = hsl[0],
+      s = hsl[1] / 100,
+      l = hsl[2] / 100,
+      sv, v;
+
+  if(l === 0) {
+      // no need to do calc on black
+      // also avoids divide by 0 error
+      return [0, 0, 0];
+  }
+
+  l *= 2;
+  s *= (l <= 1) ? l : 2 - l;
+  v = (l + s) / 2;
+  sv = (2 * s) / (l + s);
+  return [h, sv * 100, v * 100];
+}
 
-					this.eachBars(function(bar){
-						bar.restore([''fillColor'', ''strokeColor'']);
-					});
-					helpers.each(activeBars, function(activeBar){
-						activeBar.fillColor = activeBar.highlightFill;
-						activeBar.strokeColor = activeBar.highlightStroke;
-					});
-					this.showTooltip(activeBars);
-				});
-			}
+function hsl2hwb(args) {
+  return rgb2hwb(hsl2rgb(args));
+}
 
-			//Declare the extension of the default point, to cater for the options passed in to the constructor
-			this.BarClass = Chart.Rectangle.extend({
-				strokeWidth : this.options.barStrokeWidth,
-				showStroke : this.options.barShowStroke,
-				ctx : this.chart.ctx
-			});
+function hsl2cmyk(args) {
+  return rgb2cmyk(hsl2rgb(args));
+}
 
-			this.dataTotal = [];
-			//Iterate through each of the datasets, and build this into a property of the chart
-			helpers.each(data.datasets,function(dataset,datasetIndex){
+function hsl2keyword(args) {
+  return rgb2keyword(hsl2rgb(args));
+}
 
-				var datasetObject = {
-					label : dataset.label || null,
-					fillColor : dataset.fillColor,
-					strokeColor : dataset.strokeColor,
-					bars : [],
-					data: []
-				};
 
-				this.datasets.push(datasetObject);
-
-				helpers.each(dataset.data,function(dataArray,idx){
-					var sum = dataArray.reduce(function(a, b) {
-					    return a + b;
-					}, 0);
-
-					this.dataTotal.push(sum);
-					datasetObject.data.push(dataArray);
-					helpers.each(dataArray,function(dataPoint,index){
-						if (helpers.isNumber(dataPoint)){
-							//Add a new point for each piece of data, passing any required data to draw.
-							//Add 0 as value if !isNumber (e.g. empty values are useful when 0 values should be hidden in tooltip)
-							datasetObject.bars.push(new this.BarClass({
-								value : helpers.isNumber(dataPoint)?dataPoint:0,
-								label : data.labels[index],
-								datasetLabel: dataset.label,
-								strokeColor : dataset.strokeColor,
-								fillColor : dataset.fillColor,
-								highlightFill : dataset.highlightFill || dataset.fillColor,
-								highlightStroke : dataset.highlightStroke || dataset.strokeColor
-							}));
-						}
-					},this);
+function hsv2rgb(hsv) {
+  var h = hsv[0] / 60,
+      s = hsv[1] / 100,
+      v = hsv[2] / 100,
+      hi = Math.floor(h) % 6;
+
+  var f = h - Math.floor(h),
+      p = 255 * v * (1 - s),
+      q = 255 * v * (1 - (s * f)),
+      t = 255 * v * (1 - (s * (1 - f))),
+      v = 255 * v;
+
+  switch(hi) {
+    case 0:
+      return [v, t, p];
+    case 1:
+      return [q, v, p];
+    case 2:
+      return [p, v, t];
+    case 3:
+      return [p, q, v];
+    case 4:
+      return [t, p, v];
+    case 5:
+      return [v, p, q];
+  }
+}
 
-				},this);
+function hsv2hsl(hsv) {
+  var h = hsv[0],
+      s = hsv[1] / 100,
+      v = hsv[2] / 100,
+      sl, l;
+
+  l = (2 - s) * v;
+  sl = s * v;
+  sl /= (l <= 1) ? l : 2 - l;
+  sl = sl || 0;
+  l /= 2;
+  return [h, sl * 100, l * 100];
+}
 
-			},this);
+function hsv2hwb(args) {
+  return rgb2hwb(hsv2rgb(args))
+}
 
-			//fix for barwidth
-			this.barSubValuesCount = 5;
-			this.barSubValueLength = data.labels.length;
+function hsv2cmyk(args) {
+  return rgb2cmyk(hsv2rgb(args));
+}
 
-			this.buildScale(data.labels);
+function hsv2keyword(args) {
+  return rgb2keyword(hsv2rgb(args));
+}
 
-			this.eachBars(function(bar, index, datasetIndex){
-				helpers.extend(bar, {
-					base: this.scale.endPoint,
-					height: 0,
-					width : this.scale.calculateBarWidth(this.datasets.length),
-					x: this.scale.calculateBarX(datasetIndex, index),
-					y: this.scale.endPoint
-				});
-				bar.save();
-			}, this);
+// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
+function hwb2rgb(hwb) {
+  var h = hwb[0] / 360,
+      wh = hwb[1] / 100,
+      bl = hwb[2] / 100,
+      ratio = wh + bl,
+      i, v, f, n;
+
+  // wh + bl cant be > 1
+  if (ratio > 1) {
+    wh /= ratio;
+    bl /= ratio;
+  }
+
+  i = Math.floor(6 * h);
+  v = 1 - bl;
+  f = 6 * h - i;
+  if ((i & 0x01) != 0) {
+    f = 1 - f;
+  }
+  n = wh + f * (v - wh);  // linear interpolation
+
+  switch (i) {
+    default:
+    case 6:
+    case 0: r = v; g = n; b = wh; break;
+    case 1: r = n; g = v; b = wh; break;
+    case 2: r = wh; g = v; b = n; break;
+    case 3: r = wh; g = n; b = v; break;
+    case 4: r = n; g = wh; b = v; break;
+    case 5: r = v; g = wh; b = n; break;
+  }
+
+  return [r * 255, g * 255, b * 255];
+}
 
-			this.render();
-		},
-		showTooltip : function(ChartElements, forceRedraw){
-			// Only redraw the chart if we''ve actually changed what we''re hovering on.
-			if (typeof this.activeElements === ''undefined'') this.activeElements = [];
+function hwb2hsl(args) {
+  return rgb2hsl(hwb2rgb(args));
+}
 
-			helpers = Chart.helpers;
+function hwb2hsv(args) {
+  return rgb2hsv(hwb2rgb(args));
+}
 
-			var isChanged = (function(Elements){
-				var changed = false;
+function hwb2cmyk(args) {
+  return rgb2cmyk(hwb2rgb(args));
+}
 
-				if (Elements.length !== this.activeElements.length){
-					changed = true;
-					return changed;
-				}
+function hwb2keyword(args) {
+  return rgb2keyword(hwb2rgb(args));
+}
 
-				helpers.each(Elements, function(element, index){
-					if (element !== this.activeElements[index]){
-						changed = true;
-					}
-				}, this);
-				return changed;
-			}).call(this, ChartElements);
+function cmyk2rgb(cmyk) {
+  var c = cmyk[0] / 100,
+      m = cmyk[1] / 100,
+      y = cmyk[2] / 100,
+      k = cmyk[3] / 100,
+      r, g, b;
+
+  r = 1 - Math.min(1, c * (1 - k) + k);
+  g = 1 - Math.min(1, m * (1 - k) + k);
+  b = 1 - Math.min(1, y * (1 - k) + k);
+  return [r * 255, g * 255, b * 255];
+}
 
-			if (!isChanged && !forceRedraw){
-				return;
-			}
-			else{
-				this.activeElements = ChartElements;
-			}
-			this.draw();
-			if(this.options.customTooltips){
-				this.options.customTooltips(false);
-			}
-			if (ChartElements.length > 0){
-				// If we have multiple datasets, show a MultiTooltip for all of the data points at that index
-				if (this.datasets && this.datasets.length > 1) {
-					var dataArray,
-					dataIndex;
-
-					for (var i = this.datasets.length - 1; i >= 0; i--) {
-						dataArray = this.datasets[i].data; //this.datasets[i].points || this.datasets[i].bars || this.datasets[i].segments;
-						helpers.each(dataArray, function(da) {
-							dataIndex = helpers.indexOf(da.join(), ChartElements[0]);
-							if (dataIndex !== -1){
-								return;
-							}
-						});
-					}
-					var tooltipLabels = [],
-					tooltipColors = [],
-					medianPosition = (function(index) {
-
-						// Get all the points at that particular index
-						var Elements = [],
-						dataCollection,
-						xPositions = [],
-						yPositions = [],
-						xMax,
-						yMax,
-						xMin,
-						yMin;
-						helpers.each(this.datasets, function(dataset){
-							dataCollection = dataset.data; //dataset.points || dataset.bars || dataset.segments;
-							if (dataCollection[dataIndex] && dataCollection[dataIndex].length > 0){
-								Elements.push(dataCollection[dataIndex]);
-								console.log(dataCollection[dataIndex]);
-							}
-						});
-
-						var total = {
-							datasetLabel: this.options.totalLabel,
-							value: 0,
-							fillColor: this.options.totalColor,
-							strokeColor: this.options.totalColor
-						};
+function cmyk2hsl(args) {
+  return rgb2hsl(cmyk2rgb(args));
+}
 
-						helpers.each(Elements, function(element) {
-							xPositions.push(element.x);
-							yPositions.push(element.y);
+function cmyk2hsv(args) {
+  return rgb2hsv(cmyk2rgb(args));
+}
 
-							total.value += element.value;
+function cmyk2hwb(args) {
+  return rgb2hwb(cmyk2rgb(args));
+}
 
-							//Include any colour information about the element
-							tooltipLabels.push(helpers.template(this.options.multiTooltipTemplate, element));
-							tooltipColors.push({
-								fill: total.fillColor || element._saved.fillColor || element.fillColor,
-								stroke: total.strokeColor || element._saved.strokeColor || element.strokeColor
-							});
+function cmyk2keyword(args) {
+  return rgb2keyword(cmyk2rgb(args));
+}
 
-						}, this);
 
-						if (this.options.showTotal) {
-							tooltipLabels.push(helpers.template(this.options.multiTooltipTemplate, total));
-							tooltipColors.push({
-								fill: total.fillColor,
-								stroke: total.strokeColor
-							});
-						}
+function xyz2rgb(xyz) {
+  var x = xyz[0] / 100,
+      y = xyz[1] / 100,
+      z = xyz[2] / 100,
+      r, g, b;
 
-						yMin = helpers.min(yPositions);
-						yMax = helpers.max(yPositions);
+  r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
+  g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
+  b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);
 
-						xMin = helpers.min(xPositions);
-						xMax = helpers.max(xPositions);
+  // assume sRGB
+  r = r > 0.0031308 ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
+    : r = (r * 12.92);
 
-						return {
-							x: (xMin > this.chart.width/2) ? xMin : xMax,
-							y: (yMin + yMax)/2
-						};
-					}).call(this, dataIndex);
-
-					console.log("tt1");
-					new Chart.MultiTooltip({
-						x: medianPosition.x,
-						y: medianPosition.y,
-						xPadding: this.options.tooltipXPadding,
-						yPadding: this.options.tooltipYPadding,
-						xOffset: this.options.tooltipXOffset,
-						fillColor: this.options.tooltipFillColor,
-						textColor: this.options.tooltipFontColor,
-						fontFamily: this.options.tooltipFontFamily,
-						fontStyle: this.options.tooltipFontStyle,
-						fontSize: this.options.tooltipFontSize,
-						titleTextColor: this.options.tooltipTitleFontColor,
-						titleFontFamily: this.options.tooltipTitleFontFamily,
-						titleFontStyle: this.options.tooltipTitleFontStyle,
-						titleFontSize: this.options.tooltipTitleFontSize,
-						cornerRadius: this.options.tooltipCornerRadius,
-						labels: tooltipLabels,
-						legendColors: tooltipColors,
-						legendColorBackground : this.options.multiTooltipKeyBackground,
-						title: ChartElements[0].label,
-						chart: this.chart,
-						ctx: this.chart.ctx,
-						custom: this.options.customTooltips
-					}).draw();
+  g = g > 0.0031308 ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
+    : g = (g * 12.92);
 
-				} else {
-					console.log("tt2");
-					helpers.each(ChartElements, function(Element) {
-						var tooltipPosition = Element.tooltipPosition();
-						new Chart.Tooltip({
-							x: Math.round(tooltipPosition.x),
-							y: Math.round(tooltipPosition.y),
-							xPadding: this.options.tooltipXPadding,
-							yPadding: this.options.tooltipYPadding,
-							fillColor: this.options.tooltipFillColor,
-							textColor: this.options.tooltipFontColor,
-							fontFamily: this.options.tooltipFontFamily,
-							fontStyle: this.options.tooltipFontStyle,
-							fontSize: this.options.tooltipFontSize,
-							caretHeight: this.options.tooltipCaretSize,
-							cornerRadius: this.options.tooltipCornerRadius,
-							text: helpers.template(this.options.tooltipTemplate, Element),
-							chart: this.chart,
-							custom: this.options.customTooltips
-						}).draw();
-					}, this);
-				}
-			}
-			return this;
-		},
-		update : function(){
-			this.scale.update();
-			// Reset any highlight colours before updating.
-			helpers.each(this.activeElements, function(activeElement){
-				activeElement.restore([''fillColor'', ''strokeColor'']);
-			});
+  b = b > 0.0031308 ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
+    : b = (b * 12.92);
 
-			this.eachBars(function(bar){
-				bar.save();
-			});
-			this.render();
-		},
-		eachBars : function(callback){
-			helpers.each(this.datasets,function(dataset, datasetIndex){
-				helpers.each(dataset.bars, callback, this, datasetIndex);
-			},this);
-		},
-		getBarsAtEvent : function(e){
-			var barsArray = [],
-				eventPosition = helpers.getRelativePosition(e),
-				datasetIterator = function(dataset){
-					//barsArray.push(dataset.bars[barIndex]);
-					var idx = Math.floor(barIndex / 5);
-					barsArray.push({
-						value: dataset.data[idx].join(),
-						fillColor: dataset.bars[barIndex].fillColor,
-						strokeColor: dataset.bars[barIndex].strokeColor
-					});
-				},
-				barIndex;
+  r = Math.min(Math.max(0, r), 1);
+  g = Math.min(Math.max(0, g), 1);
+  b = Math.min(Math.max(0, b), 1);
 
-			for (var datasetIndex = 0; datasetIndex < this.datasets.length; datasetIndex++) {
-				for (barIndex = 0; barIndex < this.datasets[datasetIndex].bars.length; barIndex++) {
-					if (this.datasets[datasetIndex].bars[barIndex].inRange(eventPosition.x,eventPosition.y)){
-						helpers.each(this.datasets, datasetIterator);
-						return barsArray;
-					}
-				}
-			}
+  return [r * 255, g * 255, b * 255];
+}
 
-			return barsArray;
-		},
-		buildScale : function(labels){
-			var self = this;
-
-			var scaleOptions = {
-				templateString : this.options.scaleLabel,
-				height : this.chart.height,
-				width : this.chart.width,
-				ctx : this.chart.ctx,
-				textColor : this.options.scaleFontColor,
-				fontSize : this.options.scaleFontSize,
-				fontStyle : this.options.scaleFontStyle,
-				fontFamily : this.options.scaleFontFamily,
-				valuesCount : labels.length,
-				beginAtZero : this.options.scaleBeginAtZero,
-				integersOnly : this.options.scaleIntegersOnly,
-				dataTotal: this.dataTotal,
-				calculateYRange: function(currentHeight){
-					var updatedRanges = helpers.calculateScaleRange(
-						this.dataTotal,
-						currentHeight,
-						this.fontSize,
-						this.beginAtZero,
-						this.integersOnly
-					);
-					if (updatedRanges.max < Math.max.apply(null, this.dataTotal)) {
-						updatedRanges.max += updatedRanges.stepValue;
-						updatedRanges.steps++;
-					}
-					helpers.extend(this, updatedRanges);
-				},
-				xLabels : this.options.xLabels || labels,
-				font : helpers.fontString(this.options.scaleFontSize, this.options.scaleFontStyle, this.options.scaleFontFamily),
-				lineWidth : this.options.scaleLineWidth,
-				lineColor : this.options.scaleLineColor,
-				gridLineWidth : (this.options.scaleShowGridLines) ? this.options.scaleGridLineWidth : 0,
-				gridLineColor : (this.options.scaleShowGridLines) ? this.options.scaleGridLineColor : "rgba(0,0,0,0)",
-				padding : (this.options.showScale) ? 0 : (this.options.barShowStroke) ? this.options.barStrokeWidth : 0,
-				showLabels : this.options.scaleShowLabels,
-				display : this.options.showScale
-			};
+function xyz2lab(xyz) {
+  var x = xyz[0],
+      y = xyz[1],
+      z = xyz[2],
+      l, a, b;
 
-			if (this.options.scaleOverride){
-				helpers.extend(scaleOptions, {
-					calculateYRange: helpers.noop,
-					steps: this.options.scaleSteps,
-					stepValue: this.options.scaleStepWidth,
-					min: this.options.scaleStartValue,
-					max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth)
-				});
-			}
+  x /= 95.047;
+  y /= 100;
+  z /= 108.883;
 
-			this.scale = new this.ScaleClass(scaleOptions);
-			this.scale.valuesCount = this.datasets.length * this.barSubValueLength; //fix for barwidth
-		},
-		draw : function(ease){
-			var easingDecimal = ease || 1;
-			this.clear();
-
-			var ctx = this.chart.ctx;
-
-			var vc = this.scale.valuesCount;
-			this.scale.valuesCount = this.barSubValueLength;
-			this.scale.draw(easingDecimal);
-			this.scale.valuesCount = vc;
-
-			//Draw all the bars for each dataset
-			var oy = 0;
-			helpers.each(this.datasets,function(dataset,datasetIndex){
-				helpers.each(dataset.bars,function(bar,barIndex){
-
-					// min
-					var index = barIndex % this.barSubValuesCount;
-					var s = Math.floor(barIndex / this.barSubValuesCount);
-					//var bar = dataset.bars[barIndex];
-					var	height = this.scale.calculateBarHeight(this.datasets, datasetIndex, barIndex, bar.value);
-					var width = this.scale.calculateBarWidth(this.datasets.length);
-					var x = this.scale.calculateBarX(datasetIndex, barIndex) + (s * this.datasets.length * (width + this.options.barValueSpacing)) + (s * this.datasets.length * this.options.barValueSpacing);
-					var y = this.scale.calculateBarY(this.datasets, datasetIndex, barIndex, bar.value);
-					var base = this.scale.endPoint - (Math.abs(height) - Math.abs(y));
-					if (index === 0) {
-						bar.transition({
-							base : y + 1,
-							x : x,
-							y : Math.abs(y - 1),
-							height : Math.abs(height),
-							width : width
-						}, easingDecimal).draw();
-						oy = Math.abs(y - 1);
-					}
+  x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
+  y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
+  z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);
 
-					// lower iqr
-					else if (index === 1) {
-						bar.transition({
-							base : oy + 1,
-							x : x,
-							y : Math.abs(oy - 1 - (base - y)),
-							height : Math.abs(height),
-							width : 2
-						}, easingDecimal).draw();
-						oy = Math.abs(oy - 1 - (base - y));
-					}
+  l = (116 * y) - 16;
+  a = 500 * (x - y);
+  b = 200 * (y - z);
 
-					// lower median
-					else if (index === 2) {
-						bar.transition({
-							base : Math.abs(oy - 1 - (base - y)),
-							x : x,
-							y : oy + 1,
-							height : Math.abs(height),
-							width : width
-						}, easingDecimal).draw();
-						oy = Math.abs(oy - 1 - (base - y));
-
-						// median
-						bar.transition({
-							base : oy + 1,
-							x : x,
-							y : Math.abs(oy - 1),
-							height : Math.abs(height),
-							width : width
-						}, easingDecimal).draw();
-					}
+  return [l, a, b];
+}
 
-					// upper median
-					else if (index === 3) {
-						bar.transition({
-							base : oy + 1,
-							x : x,
-							y : Math.abs(oy - 1 - (base - y)),
-							height : Math.abs(height),
-							width : width
-						}, easingDecimal).draw();
-						oy = Math.abs(oy - 1 - (base - y));
-					}
+function xyz2lch(args) {
+  return lab2lch(xyz2lab(args));
+}
 
-					// upper iqr
-					else if (index === 4) {
-						bar.transition({
-							base : oy + 1,
-							x : x,
-							y : Math.abs(oy + 1 - (base - y)),
-							height : Math.abs(height),
-							width : 2
-						}, easingDecimal).draw();
-
-						// max
-						bar.transition({
-							y : Math.abs(oy + 1 - (base - y)),
-							x : x,
-							base : Math.abs(oy + 1 - (base - y)),
-							height : Math.abs(height),
-							width : width
-						}, easingDecimal).draw();
-						oy = Math.abs(oy + 1 - (base - y));
-					}
-				},this);
-			},this);
-		}
-	});
-}).call(this);'
-]
+function lab2xyz(lab) {
+  var l = lab[0],
+      a = lab[1],
+      b = lab[2],
+      x, y, z, y2;
 
-{ #category : #uploaded }
-ChartJsLibrary >> ChartJs [
-	^ '/*!
- * Chart.js
- * http://chartjs.org/
- * Version: 1.0.1
- *
- * Copyright 2015 Nick Downie
- * Released under the MIT license
- * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md
- */
+  if (l <= 8) {
+    y = (l * 100) / 903.3;
+    y2 = (7.787 * (y / 100)) + (16 / 116);
+  } else {
+    y = 100 * Math.pow((l + 16) / 116, 3);
+    y2 = Math.pow(y / 100, 1/3);
+  }
 
+  x = x / 95.047 <= 0.008856 ? x = (95.047 * ((a / 500) + y2 - (16 / 116))) / 7.787 : 95.047 * Math.pow((a / 500) + y2, 3);
 
-(function(){
+  z = z / 108.883 <= 0.008859 ? z = (108.883 * (y2 - (b / 200) - (16 / 116))) / 7.787 : 108.883 * Math.pow(y2 - (b / 200), 3);
 
-	"use strict";
+  return [x, y, z];
+}
+
+function lab2lch(lab) {
+  var l = lab[0],
+      a = lab[1],
+      b = lab[2],
+      hr, h, c;
+
+  hr = Math.atan2(b, a);
+  h = hr * 360 / 2 / Math.PI;
+  if (h < 0) {
+    h += 360;
+  }
+  c = Math.sqrt(a * a + b * b);
+  return [l, c, h];
+}
 
-	//Declare root variable - window in the browser, global on the server
-	var root = this,
-		previous = root.Chart;
+function lab2rgb(args) {
+  return xyz2rgb(lab2xyz(args));
+}
 
-	//Occupy the global variable of Chart, and create a simple base class
-	var Chart = function(context){
-		var chart = this;
-		this.canvas = context.canvas;
+function lch2lab(lch) {
+  var l = lch[0],
+      c = lch[1],
+      h = lch[2],
+      a, b, hr;
 
-		this.ctx = context;
+  hr = h / 360 * 2 * Math.PI;
+  a = c * Math.cos(hr);
+  b = c * Math.sin(hr);
+  return [l, a, b];
+}
 
-		//Variables global to the chart
-		var width = this.width = context.canvas.width;
-		var height = this.height = context.canvas.height;
-		this.aspectRatio = this.width / this.height;
-		//High pixel density displays - multiply the size of the canvas height/width by the device pixel ratio, then scale.
-		helpers.retinaScale(this);
+function lch2xyz(args) {
+  return lab2xyz(lch2lab(args));
+}
 
-		return this;
-	};
-	//Globally expose the defaults to allow for user updating/changing
-	Chart.defaults = {
-		global: {
-			// Boolean - Whether to animate the chart
-			animation: true,
+function lch2rgb(args) {
+  return lab2rgb(lch2lab(args));
+}
+
+function keyword2rgb(keyword) {
+  return cssKeywords[keyword];
+}
 
-			// Number - Number of animation steps
-			animationSteps: 60,
+function keyword2hsl(args) {
+  return rgb2hsl(keyword2rgb(args));
+}
 
-			// String - Animation easing effect
-			animationEasing: "easeOutQuart",
+function keyword2hsv(args) {
+  return rgb2hsv(keyword2rgb(args));
+}
 
-			// Boolean - If we should show the scale at all
-			showScale: true,
+function keyword2hwb(args) {
+  return rgb2hwb(keyword2rgb(args));
+}
 
-			// Boolean - If we want to override with a hard coded scale
-			scaleOverride: false,
+function keyword2cmyk(args) {
+  return rgb2cmyk(keyword2rgb(args));
+}
 
-			// ** Required if scaleOverride is true **
-			// Number - The number of steps in a hard coded scale
-			scaleSteps: null,
-			// Number - The value jump in the hard coded scale
-			scaleStepWidth: null,
-			// Number - The scale starting value
-			scaleStartValue: null,
+function keyword2lab(args) {
+  return rgb2lab(keyword2rgb(args));
+}
 
-			// String - Colour of the scale line
-			scaleLineColor: "rgba(0,0,0,.1)",
+function keyword2xyz(args) {
+  return rgb2xyz(keyword2rgb(args));
+}
 
-			// Number - Pixel width of the scale line
-			scaleLineWidth: 1,
+var cssKeywords = {
+  aliceblue:  [240,248,255],
+  antiquewhite: [250,235,215],
+  aqua: [0,255,255],
+  aquamarine: [127,255,212],
+  azure:  [240,255,255],
+  beige:  [245,245,220],
+  bisque: [255,228,196],
+  black:  [0,0,0],
+  blanchedalmond: [255,235,205],
+  blue: [0,0,255],
+  blueviolet: [138,43,226],
+  brown:  [165,42,42],
+  burlywood:  [222,184,135],
+  cadetblue:  [95,158,160],
+  chartreuse: [127,255,0],
+  chocolate:  [210,105,30],
+  coral:  [255,127,80],
+  cornflowerblue: [100,149,237],
+  cornsilk: [255,248,220],
+  crimson:  [220,20,60],
+  cyan: [0,255,255],
+  darkblue: [0,0,139],
+  darkcyan: [0,139,139],
+  darkgoldenrod:  [184,134,11],
+  darkgray: [169,169,169],
+  darkgreen:  [0,100,0],
+  darkgrey: [169,169,169],
+  darkkhaki:  [189,183,107],
+  darkmagenta:  [139,0,139],
+  darkolivegreen: [85,107,47],
+  darkorange: [255,140,0],
+  darkorchid: [153,50,204],
+  darkred:  [139,0,0],
+  darksalmon: [233,150,122],
+  darkseagreen: [143,188,143],
+  darkslateblue:  [72,61,139],
+  darkslategray:  [47,79,79],
+  darkslategrey:  [47,79,79],
+  darkturquoise:  [0,206,209],
+  darkviolet: [148,0,211],
+  deeppink: [255,20,147],
+  deepskyblue:  [0,191,255],
+  dimgray:  [105,105,105],
+  dimgrey:  [105,105,105],
+  dodgerblue: [30,144,255],
+  firebrick:  [178,34,34],
+  floralwhite:  [255,250,240],
+  forestgreen:  [34,139,34],
+  fuchsia:  [255,0,255],
+  gainsboro:  [220,220,220],
+  ghostwhite: [248,248,255],
+  gold: [255,215,0],
+  goldenrod:  [218,165,32],
+  gray: [128,128,128],
+  green:  [0,128,0],
+  greenyellow:  [173,255,47],
+  grey: [128,128,128],
+  honeydew: [240,255,240],
+  hotpink:  [255,105,180],
+  indianred:  [205,92,92],
+  indigo: [75,0,130],
+  ivory:  [255,255,240],
+  khaki:  [240,230,140],
+  lavender: [230,230,250],
+  lavenderblush:  [255,240,245],
+  lawngreen:  [124,252,0],
+  lemonchiffon: [255,250,205],
+  lightblue:  [173,216,230],
+  lightcoral: [240,128,128],
+  lightcyan:  [224,255,255],
+  lightgoldenrodyellow: [250,250,210],
+  lightgray:  [211,211,211],
+  lightgreen: [144,238,144],
+  lightgrey:  [211,211,211],
+  lightpink:  [255,182,193],
+  lightsalmon:  [255,160,122],
+  lightseagreen:  [32,178,170],
+  lightskyblue: [135,206,250],
+  lightslategray: [119,136,153],
+  lightslategrey: [119,136,153],
+  lightsteelblue: [176,196,222],
+  lightyellow:  [255,255,224],
+  lime: [0,255,0],
+  limegreen:  [50,205,50],
+  linen:  [250,240,230],
+  magenta:  [255,0,255],
+  maroon: [128,0,0],
+  mediumaquamarine: [102,205,170],
+  mediumblue: [0,0,205],
+  mediumorchid: [186,85,211],
+  mediumpurple: [147,112,219],
+  mediumseagreen: [60,179,113],
+  mediumslateblue:  [123,104,238],
+  mediumspringgreen:  [0,250,154],
+  mediumturquoise:  [72,209,204],
+  mediumvioletred:  [199,21,133],
+  midnightblue: [25,25,112],
+  mintcream:  [245,255,250],
+  mistyrose:  [255,228,225],
+  moccasin: [255,228,181],
+  navajowhite:  [255,222,173],
+  navy: [0,0,128],
+  oldlace:  [253,245,230],
+  olive:  [128,128,0],
+  olivedrab:  [107,142,35],
+  orange: [255,165,0],
+  orangered:  [255,69,0],
+  orchid: [218,112,214],
+  palegoldenrod:  [238,232,170],
+  palegreen:  [152,251,152],
+  paleturquoise:  [175,238,238],
+  palevioletred:  [219,112,147],
+  papayawhip: [255,239,213],
+  peachpuff:  [255,218,185],
+  peru: [205,133,63],
+  pink: [255,192,203],
+  plum: [221,160,221],
+  powderblue: [176,224,230],
+  purple: [128,0,128],
+  rebeccapurple: [102, 51, 153],
+  red:  [255,0,0],
+  rosybrown:  [188,143,143],
+  royalblue:  [65,105,225],
+  saddlebrown:  [139,69,19],
+  salmon: [250,128,114],
+  sandybrown: [244,164,96],
+  seagreen: [46,139,87],
+  seashell: [255,245,238],
+  sienna: [160,82,45],
+  silver: [192,192,192],
+  skyblue:  [135,206,235],
+  slateblue:  [106,90,205],
+  slategray:  [112,128,144],
+  slategrey:  [112,128,144],
+  snow: [255,250,250],
+  springgreen:  [0,255,127],
+  steelblue:  [70,130,180],
+  tan:  [210,180,140],
+  teal: [0,128,128],
+  thistle:  [216,191,216],
+  tomato: [255,99,71],
+  turquoise:  [64,224,208],
+  violet: [238,130,238],
+  wheat:  [245,222,179],
+  white:  [255,255,255],
+  whitesmoke: [245,245,245],
+  yellow: [255,255,0],
+  yellowgreen:  [154,205,50]
+};
+
+var reverseKeywords = {};
+for (var key in cssKeywords) {
+  reverseKeywords[JSON.stringify(cssKeywords[key])] = key;
+}
 
-			// Boolean - Whether to show labels on the scale
-			scaleShowLabels: true,
-			
-			// Boolean - Omit x-axis labels
-			omitXLabels: null,
+var convert = function() {
+   return new Converter();
+};
+
+for (var func in conversions) {
+  // export Raw versions
+  convert[func + "Raw"] =  (function(func) {
+    // accept array or plain args
+    return function(arg) {
+      if (typeof arg == "number")
+        arg = Array.prototype.slice.call(arguments);
+      return conversions[func](arg);
+    }
+  })(func);
+
+  var pair = /(\w+)2(\w+)/.exec(func),
+      from = pair[1],
+      to = pair[2];
+
+  // export rgb2hsl and ["rgb"]["hsl"]
+  convert[from] = convert[from] || {};
+
+  convert[from][to] = convert[func] = (function(func) { 
+    return function(arg) {
+      if (typeof arg == "number")
+        arg = Array.prototype.slice.call(arguments);
+      
+      var val = conversions[func](arg);
+      if (typeof val == "string" || val === undefined)
+        return val; // keyword
+
+      for (var i = 0; i < val.length; i++)
+        val[i] = Math.round(val[i]);
+      return val;
+    }
+  })(func);
+}
 
-			// Interpolated JS string - can access value
-			scaleLabel: "<%=value%>",
 
-			// Boolean - Whether the scale should stick to integers, and not show any floats even if drawing space is there
-			scaleIntegersOnly: true,
+/* Converter does lazy conversion and caching */
+var Converter = function() {
+   this.convs = {};
+};
+
+/* Either get the values for a space or
+  set the values for a space, depending on args */
+Converter.prototype.routeSpace = function(space, args) {
+   var values = args[0];
+   if (values === undefined) {
+      // color.rgb()
+      return this.getValues(space);
+   }
+   // color.rgb(10, 10, 10)
+   if (typeof values == "number") {
+      values = Array.prototype.slice.call(args);        
+   }
+
+   return this.setValues(space, values);
+};
+  
+/* Set the values for a space, invalidating cache */
+Converter.prototype.setValues = function(space, values) {
+   this.space = space;
+   this.convs = {};
+   this.convs[space] = values;
+   return this;
+};
+
+/* Get the values for a space. If there''s already
+  a conversion for the space, fetch it, otherwise
+  compute it */
+Converter.prototype.getValues = function(space) {
+   var vals = this.convs[space];
+   if (!vals) {
+      var fspace = this.space,
+          from = this.convs[fspace];
+      vals = convert[fspace][space](from);
+
+      this.convs[space] = vals;
+   }
+  return vals;
+};
+
+["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function(space) {
+   Converter.prototype[space] = function(vals) {
+      return this.routeSpace(space, arguments);
+   };
+});
+
+var colorConvert = convert;
+
+var colorName = {
+	"aliceblue": [240, 248, 255],
+	"antiquewhite": [250, 235, 215],
+	"aqua": [0, 255, 255],
+	"aquamarine": [127, 255, 212],
+	"azure": [240, 255, 255],
+	"beige": [245, 245, 220],
+	"bisque": [255, 228, 196],
+	"black": [0, 0, 0],
+	"blanchedalmond": [255, 235, 205],
+	"blue": [0, 0, 255],
+	"blueviolet": [138, 43, 226],
+	"brown": [165, 42, 42],
+	"burlywood": [222, 184, 135],
+	"cadetblue": [95, 158, 160],
+	"chartreuse": [127, 255, 0],
+	"chocolate": [210, 105, 30],
+	"coral": [255, 127, 80],
+	"cornflowerblue": [100, 149, 237],
+	"cornsilk": [255, 248, 220],
+	"crimson": [220, 20, 60],
+	"cyan": [0, 255, 255],
+	"darkblue": [0, 0, 139],
+	"darkcyan": [0, 139, 139],
+	"darkgoldenrod": [184, 134, 11],
+	"darkgray": [169, 169, 169],
+	"darkgreen": [0, 100, 0],
+	"darkgrey": [169, 169, 169],
+	"darkkhaki": [189, 183, 107],
+	"darkmagenta": [139, 0, 139],
+	"darkolivegreen": [85, 107, 47],
+	"darkorange": [255, 140, 0],
+	"darkorchid": [153, 50, 204],
+	"darkred": [139, 0, 0],
+	"darksalmon": [233, 150, 122],
+	"darkseagreen": [143, 188, 143],
+	"darkslateblue": [72, 61, 139],
+	"darkslategray": [47, 79, 79],
+	"darkslategrey": [47, 79, 79],
+	"darkturquoise": [0, 206, 209],
+	"darkviolet": [148, 0, 211],
+	"deeppink": [255, 20, 147],
+	"deepskyblue": [0, 191, 255],
+	"dimgray": [105, 105, 105],
+	"dimgrey": [105, 105, 105],
+	"dodgerblue": [30, 144, 255],
+	"firebrick": [178, 34, 34],
+	"floralwhite": [255, 250, 240],
+	"forestgreen": [34, 139, 34],
+	"fuchsia": [255, 0, 255],
+	"gainsboro": [220, 220, 220],
+	"ghostwhite": [248, 248, 255],
+	"gold": [255, 215, 0],
+	"goldenrod": [218, 165, 32],
+	"gray": [128, 128, 128],
+	"green": [0, 128, 0],
+	"greenyellow": [173, 255, 47],
+	"grey": [128, 128, 128],
+	"honeydew": [240, 255, 240],
+	"hotpink": [255, 105, 180],
+	"indianred": [205, 92, 92],
+	"indigo": [75, 0, 130],
+	"ivory": [255, 255, 240],
+	"khaki": [240, 230, 140],
+	"lavender": [230, 230, 250],
+	"lavenderblush": [255, 240, 245],
+	"lawngreen": [124, 252, 0],
+	"lemonchiffon": [255, 250, 205],
+	"lightblue": [173, 216, 230],
+	"lightcoral": [240, 128, 128],
+	"lightcyan": [224, 255, 255],
+	"lightgoldenrodyellow": [250, 250, 210],
+	"lightgray": [211, 211, 211],
+	"lightgreen": [144, 238, 144],
+	"lightgrey": [211, 211, 211],
+	"lightpink": [255, 182, 193],
+	"lightsalmon": [255, 160, 122],
+	"lightseagreen": [32, 178, 170],
+	"lightskyblue": [135, 206, 250],
+	"lightslategray": [119, 136, 153],
+	"lightslategrey": [119, 136, 153],
+	"lightsteelblue": [176, 196, 222],
+	"lightyellow": [255, 255, 224],
+	"lime": [0, 255, 0],
+	"limegreen": [50, 205, 50],
+	"linen": [250, 240, 230],
+	"magenta": [255, 0, 255],
+	"maroon": [128, 0, 0],
+	"mediumaquamarine": [102, 205, 170],
+	"mediumblue": [0, 0, 205],
+	"mediumorchid": [186, 85, 211],
+	"mediumpurple": [147, 112, 219],
+	"mediumseagreen": [60, 179, 113],
+	"mediumslateblue": [123, 104, 238],
+	"mediumspringgreen": [0, 250, 154],
+	"mediumturquoise": [72, 209, 204],
+	"mediumvioletred": [199, 21, 133],
+	"midnightblue": [25, 25, 112],
+	"mintcream": [245, 255, 250],
+	"mistyrose": [255, 228, 225],
+	"moccasin": [255, 228, 181],
+	"navajowhite": [255, 222, 173],
+	"navy": [0, 0, 128],
+	"oldlace": [253, 245, 230],
+	"olive": [128, 128, 0],
+	"olivedrab": [107, 142, 35],
+	"orange": [255, 165, 0],
+	"orangered": [255, 69, 0],
+	"orchid": [218, 112, 214],
+	"palegoldenrod": [238, 232, 170],
+	"palegreen": [152, 251, 152],
+	"paleturquoise": [175, 238, 238],
+	"palevioletred": [219, 112, 147],
+	"papayawhip": [255, 239, 213],
+	"peachpuff": [255, 218, 185],
+	"peru": [205, 133, 63],
+	"pink": [255, 192, 203],
+	"plum": [221, 160, 221],
+	"powderblue": [176, 224, 230],
+	"purple": [128, 0, 128],
+	"rebeccapurple": [102, 51, 153],
+	"red": [255, 0, 0],
+	"rosybrown": [188, 143, 143],
+	"royalblue": [65, 105, 225],
+	"saddlebrown": [139, 69, 19],
+	"salmon": [250, 128, 114],
+	"sandybrown": [244, 164, 96],
+	"seagreen": [46, 139, 87],
+	"seashell": [255, 245, 238],
+	"sienna": [160, 82, 45],
+	"silver": [192, 192, 192],
+	"skyblue": [135, 206, 235],
+	"slateblue": [106, 90, 205],
+	"slategray": [112, 128, 144],
+	"slategrey": [112, 128, 144],
+	"snow": [255, 250, 250],
+	"springgreen": [0, 255, 127],
+	"steelblue": [70, 130, 180],
+	"tan": [210, 180, 140],
+	"teal": [0, 128, 128],
+	"thistle": [216, 191, 216],
+	"tomato": [255, 99, 71],
+	"turquoise": [64, 224, 208],
+	"violet": [238, 130, 238],
+	"wheat": [245, 222, 179],
+	"white": [255, 255, 255],
+	"whitesmoke": [245, 245, 245],
+	"yellow": [255, 255, 0],
+	"yellowgreen": [154, 205, 50]
+};
+
+/* MIT license */
+
+
+var colorString = {
+   getRgba: getRgba,
+   getHsla: getHsla,
+   getRgb: getRgb,
+   getHsl: getHsl,
+   getHwb: getHwb,
+   getAlpha: getAlpha,
+
+   hexString: hexString,
+   rgbString: rgbString,
+   rgbaString: rgbaString,
+   percentString: percentString,
+   percentaString: percentaString,
+   hslString: hslString,
+   hslaString: hslaString,
+   hwbString: hwbString,
+   keyword: keyword
+};
+
+function getRgba(string) {
+   if (!string) {
+      return;
+   }
+   var abbr =  /^#([a-fA-F0-9]{3})$/i,
+       hex =  /^#([a-fA-F0-9]{6})$/i,
+       rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
+       per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
+       keyword = /(\w+)/;
+
+   var rgb = [0, 0, 0],
+       a = 1,
+       match = string.match(abbr);
+   if (match) {
+      match = match[1];
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = parseInt(match[i] + match[i], 16);
+      }
+   }
+   else if (match = string.match(hex)) {
+      match = match[1];
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
+      }
+   }
+   else if (match = string.match(rgba)) {
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = parseInt(match[i + 1]);
+      }
+      a = parseFloat(match[4]);
+   }
+   else if (match = string.match(per)) {
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
+      }
+      a = parseFloat(match[4]);
+   }
+   else if (match = string.match(keyword)) {
+      if (match[1] == "transparent") {
+         return [0, 0, 0, 0];
+      }
+      rgb = colorName[match[1]];
+      if (!rgb) {
+         return;
+      }
+   }
+
+   for (var i = 0; i < rgb.length; i++) {
+      rgb[i] = scale(rgb[i], 0, 255);
+   }
+   if (!a && a != 0) {
+      a = 1;
+   }
+   else {
+      a = scale(a, 0, 1);
+   }
+   rgb[3] = a;
+   return rgb;
+}
 
-			// Boolean - Whether the scale should start at zero, or an order of magnitude down from the lowest value
-			scaleBeginAtZero: false,
+function getHsla(string) {
+   if (!string) {
+      return;
+   }
+   var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
+   var match = string.match(hsl);
+   if (match) {
+      var alpha = parseFloat(match[4]);
+      var h = scale(parseInt(match[1]), 0, 360),
+          s = scale(parseFloat(match[2]), 0, 100),
+          l = scale(parseFloat(match[3]), 0, 100),
+          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
+      return [h, s, l, a];
+   }
+}
 
-			// String - Scale label font declaration for the scale label
-			scaleFontFamily: "''Helvetica Neue'', ''Helvetica'', ''Arial'', sans-serif",
+function getHwb(string) {
+   if (!string) {
+      return;
+   }
+   var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
+   var match = string.match(hwb);
+   if (match) {
+    var alpha = parseFloat(match[4]);
+      var h = scale(parseInt(match[1]), 0, 360),
+          w = scale(parseFloat(match[2]), 0, 100),
+          b = scale(parseFloat(match[3]), 0, 100),
+          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
+      return [h, w, b, a];
+   }
+}
 
-			// Number - Scale label font size in pixels
-			scaleFontSize: 12,
+function getRgb(string) {
+   var rgba = getRgba(string);
+   return rgba && rgba.slice(0, 3);
+}
 
-			// String - Scale label font weight style
-			scaleFontStyle: "normal",
+function getHsl(string) {
+  var hsla = getHsla(string);
+  return hsla && hsla.slice(0, 3);
+}
 
-			// String - Scale label font colour
-			scaleFontColor: "#666",
+function getAlpha(string) {
+   var vals = getRgba(string);
+   if (vals) {
+      return vals[3];
+   }
+   else if (vals = getHsla(string)) {
+      return vals[3];
+   }
+   else if (vals = getHwb(string)) {
+      return vals[3];
+   }
+}
 
-			// Boolean - whether or not the chart should be responsive and resize when the browser does.
-			responsive: false,
+// generators
+function hexString(rgb) {
+   return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1])
+              + hexDouble(rgb[2]);
+}
 
-			// Boolean - whether to maintain the starting aspect ratio or not when responsive, if set to false, will take up entire container
-			maintainAspectRatio: true,
+function rgbString(rgba, alpha) {
+   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
+      return rgbaString(rgba, alpha);
+   }
+   return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
+}
 
-			// Boolean - Determines whether to draw tooltips on the canvas or not - attaches events to touchmove & mousemove
-			showTooltips: true,
+function rgbaString(rgba, alpha) {
+   if (alpha === undefined) {
+      alpha = (rgba[3] !== undefined ? rgba[3] : 1);
+   }
+   return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
+           + ", " + alpha + ")";
+}
 
-			// Boolean - Determines whether to draw built-in tooltip or call custom tooltip function
-			customTooltips: false,
+function percentString(rgba, alpha) {
+   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
+      return percentaString(rgba, alpha);
+   }
+   var r = Math.round(rgba[0]/255 * 100),
+       g = Math.round(rgba[1]/255 * 100),
+       b = Math.round(rgba[2]/255 * 100);
 
-			// Array - Array of string names to attach tooltip events
-			tooltipEvents: ["mousemove", "touchstart", "touchmove", "mouseout"],
+   return "rgb(" + r + "%, " + g + "%, " + b + "%)";
+}
 
-			// String - Tooltip background colour
-			tooltipFillColor: "rgba(0,0,0,0.8)",
+function percentaString(rgba, alpha) {
+   var r = Math.round(rgba[0]/255 * 100),
+       g = Math.round(rgba[1]/255 * 100),
+       b = Math.round(rgba[2]/255 * 100);
+   return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
+}
 
-			// String - Tooltip label font declaration for the scale label
-			tooltipFontFamily: "''Helvetica Neue'', ''Helvetica'', ''Arial'', sans-serif",
+function hslString(hsla, alpha) {
+   if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
+      return hslaString(hsla, alpha);
+   }
+   return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
+}
 
-			// Number - Tooltip label font size in pixels
-			tooltipFontSize: 14,
+function hslaString(hsla, alpha) {
+   if (alpha === undefined) {
+      alpha = (hsla[3] !== undefined ? hsla[3] : 1);
+   }
+   return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
+           + alpha + ")";
+}
 
-			// String - Tooltip font weight style
-			tooltipFontStyle: "normal",
+// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
+// (hwb have alpha optional & 1 is default value)
+function hwbString(hwb, alpha) {
+   if (alpha === undefined) {
+      alpha = (hwb[3] !== undefined ? hwb[3] : 1);
+   }
+   return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
+           + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
+}
 
-			// String - Tooltip label font colour
-			tooltipFontColor: "#fff",
+function keyword(rgb) {
+  return reverseNames[rgb.slice(0, 3)];
+}
 
-			// String - Tooltip title font declaration for the scale label
-			tooltipTitleFontFamily: "''Helvetica Neue'', ''Helvetica'', ''Arial'', sans-serif",
+// helpers
+function scale(num, min, max) {
+   return Math.min(Math.max(min, num), max);
+}
 
-			// Number - Tooltip title font size in pixels
-			tooltipTitleFontSize: 14,
+function hexDouble(num) {
+  var str = num.toString(16).toUpperCase();
+  return (str.length < 2) ? "0" + str : str;
+}
 
-			// String - Tooltip title font weight style
-			tooltipTitleFontStyle: "bold",
 
-			// String - Tooltip title font colour
-			tooltipTitleFontColor: "#fff",
+//create a list of reverse color names
+var reverseNames = {};
+for (var name in colorName) {
+   reverseNames[colorName[name]] = name;
+}
 
-			// Number - pixel width of padding around tooltip text
-			tooltipYPadding: 6,
+/* MIT license */
 
-			// Number - pixel width of padding around tooltip text
-			tooltipXPadding: 6,
 
-			// Number - Size of the caret on the tooltip
-			tooltipCaretSize: 8,
 
-			// Number - Pixel radius of the tooltip border
-			tooltipCornerRadius: 6,
+var Color = function (obj) {
+	if (obj instanceof Color) {
+		return obj;
+	}
+	if (!(this instanceof Color)) {
+		return new Color(obj);
+	}
 
-			// Number - Pixel offset from point x to tooltip edge
-			tooltipXOffset: 10,
+	this.valid = false;
+	this.values = {
+		rgb: [0, 0, 0],
+		hsl: [0, 0, 0],
+		hsv: [0, 0, 0],
+		hwb: [0, 0, 0],
+		cmyk: [0, 0, 0, 0],
+		alpha: 1
+	};
 
-			// String - Template string for single tooltips
-			tooltipTemplate: "<%if (label){%><%=label%>: <%}%><%= value %>",
+	// parse Color() argument
+	var vals;
+	if (typeof obj === ''string'') {
+		vals = colorString.getRgba(obj);
+		if (vals) {
+			this.setValues(''rgb'', vals);
+		} else if (vals = colorString.getHsla(obj)) {
+			this.setValues(''hsl'', vals);
+		} else if (vals = colorString.getHwb(obj)) {
+			this.setValues(''hwb'', vals);
+		}
+	} else if (typeof obj === ''object'') {
+		vals = obj;
+		if (vals.r !== undefined || vals.red !== undefined) {
+			this.setValues(''rgb'', vals);
+		} else if (vals.l !== undefined || vals.lightness !== undefined) {
+			this.setValues(''hsl'', vals);
+		} else if (vals.v !== undefined || vals.value !== undefined) {
+			this.setValues(''hsv'', vals);
+		} else if (vals.w !== undefined || vals.whiteness !== undefined) {
+			this.setValues(''hwb'', vals);
+		} else if (vals.c !== undefined || vals.cyan !== undefined) {
+			this.setValues(''cmyk'', vals);
+		}
+	}
+};
+
+Color.prototype = {
+	isValid: function () {
+		return this.valid;
+	},
+	rgb: function () {
+		return this.setSpace(''rgb'', arguments);
+	},
+	hsl: function () {
+		return this.setSpace(''hsl'', arguments);
+	},
+	hsv: function () {
+		return this.setSpace(''hsv'', arguments);
+	},
+	hwb: function () {
+		return this.setSpace(''hwb'', arguments);
+	},
+	cmyk: function () {
+		return this.setSpace(''cmyk'', arguments);
+	},
+
+	rgbArray: function () {
+		return this.values.rgb;
+	},
+	hslArray: function () {
+		return this.values.hsl;
+	},
+	hsvArray: function () {
+		return this.values.hsv;
+	},
+	hwbArray: function () {
+		var values = this.values;
+		if (values.alpha !== 1) {
+			return values.hwb.concat([values.alpha]);
+		}
+		return values.hwb;
+	},
+	cmykArray: function () {
+		return this.values.cmyk;
+	},
+	rgbaArray: function () {
+		var values = this.values;
+		return values.rgb.concat([values.alpha]);
+	},
+	hslaArray: function () {
+		var values = this.values;
+		return values.hsl.concat([values.alpha]);
+	},
+	alpha: function (val) {
+		if (val === undefined) {
+			return this.values.alpha;
+		}
+		this.setValues(''alpha'', val);
+		return this;
+	},
+
+	red: function (val) {
+		return this.setChannel(''rgb'', 0, val);
+	},
+	green: function (val) {
+		return this.setChannel(''rgb'', 1, val);
+	},
+	blue: function (val) {
+		return this.setChannel(''rgb'', 2, val);
+	},
+	hue: function (val) {
+		if (val) {
+			val %= 360;
+			val = val < 0 ? 360 + val : val;
+		}
+		return this.setChannel(''hsl'', 0, val);
+	},
+	saturation: function (val) {
+		return this.setChannel(''hsl'', 1, val);
+	},
+	lightness: function (val) {
+		return this.setChannel(''hsl'', 2, val);
+	},
+	saturationv: function (val) {
+		return this.setChannel(''hsv'', 1, val);
+	},
+	whiteness: function (val) {
+		return this.setChannel(''hwb'', 1, val);
+	},
+	blackness: function (val) {
+		return this.setChannel(''hwb'', 2, val);
+	},
+	value: function (val) {
+		return this.setChannel(''hsv'', 2, val);
+	},
+	cyan: function (val) {
+		return this.setChannel(''cmyk'', 0, val);
+	},
+	magenta: function (val) {
+		return this.setChannel(''cmyk'', 1, val);
+	},
+	yellow: function (val) {
+		return this.setChannel(''cmyk'', 2, val);
+	},
+	black: function (val) {
+		return this.setChannel(''cmyk'', 3, val);
+	},
+
+	hexString: function () {
+		return colorString.hexString(this.values.rgb);
+	},
+	rgbString: function () {
+		return colorString.rgbString(this.values.rgb, this.values.alpha);
+	},
+	rgbaString: function () {
+		return colorString.rgbaString(this.values.rgb, this.values.alpha);
+	},
+	percentString: function () {
+		return colorString.percentString(this.values.rgb, this.values.alpha);
+	},
+	hslString: function () {
+		return colorString.hslString(this.values.hsl, this.values.alpha);
+	},
+	hslaString: function () {
+		return colorString.hslaString(this.values.hsl, this.values.alpha);
+	},
+	hwbString: function () {
+		return colorString.hwbString(this.values.hwb, this.values.alpha);
+	},
+	keyword: function () {
+		return colorString.keyword(this.values.rgb, this.values.alpha);
+	},
+
+	rgbNumber: function () {
+		var rgb = this.values.rgb;
+		return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
+	},
+
+	luminosity: function () {
+		// http://www.w3.org/TR/WCAG20/#relativeluminancedef
+		var rgb = this.values.rgb;
+		var lum = [];
+		for (var i = 0; i < rgb.length; i++) {
+			var chan = rgb[i] / 255;
+			lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
+		}
+		return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
+	},
+
+	contrast: function (color2) {
+		// http://www.w3.org/TR/WCAG20/#contrast-ratiodef
+		var lum1 = this.luminosity();
+		var lum2 = color2.luminosity();
+		if (lum1 > lum2) {
+			return (lum1 + 0.05) / (lum2 + 0.05);
+		}
+		return (lum2 + 0.05) / (lum1 + 0.05);
+	},
 
-			// String - Template string for single tooltips
-			multiTooltipTemplate: "<%= value %>",
+	level: function (color2) {
+		var contrastRatio = this.contrast(color2);
+		if (contrastRatio >= 7.1) {
+			return ''AAA'';
+		}
 
-			// String - Colour behind the legend colour block
-			multiTooltipKeyBackground: ''#fff'',
+		return (contrastRatio >= 4.5) ? ''AA'' : '''';
+	},
 
-			// Function - Will fire on animation progression.
-			onAnimationProgress: function(){},
+	dark: function () {
+		// YIQ equation from http://24ways.org/2010/calculating-color-contrast
+		var rgb = this.values.rgb;
+		var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
+		return yiq < 128;
+	},
 
-			// Function - Will fire on animation completion.
-			onAnimationComplete: function(){}
+	light: function () {
+		return !this.dark();
+	},
 
+	negate: function () {
+		var rgb = [];
+		for (var i = 0; i < 3; i++) {
+			rgb[i] = 255 - this.values.rgb[i];
 		}
-	};
+		this.setValues(''rgb'', rgb);
+		return this;
+	},
 
-	//Create a dictionary of chart types, to allow for extension of existing types
-	Chart.types = {};
-
-	//Global Chart helpers object for utility methods and classes
-	var helpers = Chart.helpers = {};
-
-		//-- Basic js utility methods
-	var each = helpers.each = function(loopable,callback,self){
-			var additionalArgs = Array.prototype.slice.call(arguments, 3);
-			// Check to see if null or undefined firstly.
-			if (loopable){
-				if (loopable.length === +loopable.length){
-					var i;
-					for (i=0; i<loopable.length; i++){
-						callback.apply(self,[loopable[i], i].concat(additionalArgs));
-					}
-				}
-				else{
-					for (var item in loopable){
-						callback.apply(self,[loopable[item],item].concat(additionalArgs));
-					}
-				}
-			}
-		},
-		clone = helpers.clone = function(obj){
-			var objClone = {};
-			each(obj,function(value,key){
-				if (obj.hasOwnProperty(key)) objClone[key] = value;
-			});
-			return objClone;
-		},
-		extend = helpers.extend = function(base){
-			each(Array.prototype.slice.call(arguments,1), function(extensionObject) {
-				each(extensionObject,function(value,key){
-					if (extensionObject.hasOwnProperty(key)) base[key] = value;
-				});
-			});
-			return base;
-		},
-		merge = helpers.merge = function(base,master){
-			//Merge properties in left object over to a shallow clone of object right.
-			var args = Array.prototype.slice.call(arguments,0);
-			args.unshift({});
-			return extend.apply(null, args);
-		},
-		indexOf = helpers.indexOf = function(arrayToSearch, item){
-			if (Array.prototype.indexOf) {
-				return arrayToSearch.indexOf(item);
-			}
-			else{
-				for (var i = 0; i < arrayToSearch.length; i++) {
-					if (arrayToSearch[i] === item) return i;
-				}
-				return -1;
-			}
-		},
-		where = helpers.where = function(collection, filterCallback){
-			var filtered = [];
+	lighten: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[2] += hsl[2] * ratio;
+		this.setValues(''hsl'', hsl);
+		return this;
+	},
 
-			helpers.each(collection, function(item){
-				if (filterCallback(item)){
-					filtered.push(item);
-				}
-			});
+	darken: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[2] -= hsl[2] * ratio;
+		this.setValues(''hsl'', hsl);
+		return this;
+	},
 
-			return filtered;
-		},
-		findNextWhere = helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex){
-			// Default to start of the array
-			if (!startIndex){
-				startIndex = -1;
-			}
-			for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
-				var currentItem = arrayToSearch[i];
-				if (filterCallback(currentItem)){
-					return currentItem;
-				}
-			}
-		},
-		findPreviousWhere = helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex){
-			// Default to end of the array
-			if (!startIndex){
-				startIndex = arrayToSearch.length;
-			}
-			for (var i = startIndex - 1; i >= 0; i--) {
-				var currentItem = arrayToSearch[i];
-				if (filterCallback(currentItem)){
-					return currentItem;
-				}
-			}
-		},
-		inherits = helpers.inherits = function(extensions){
-			//Basic javascript inheritance based on the model created in Backbone.js
-			var parent = this;
-			var ChartElement = (extensions && extensions.hasOwnProperty("constructor")) ? extensions.constructor : function(){ return parent.apply(this, arguments); };
+	saturate: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[1] += hsl[1] * ratio;
+		this.setValues(''hsl'', hsl);
+		return this;
+	},
 
-			var Surrogate = function(){ this.constructor = ChartElement;};
-			Surrogate.prototype = parent.prototype;
-			ChartElement.prototype = new Surrogate();
+	desaturate: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[1] -= hsl[1] * ratio;
+		this.setValues(''hsl'', hsl);
+		return this;
+	},
 
-			ChartElement.extend = inherits;
+	whiten: function (ratio) {
+		var hwb = this.values.hwb;
+		hwb[1] += hwb[1] * ratio;
+		this.setValues(''hwb'', hwb);
+		return this;
+	},
 
-			if (extensions) extend(ChartElement.prototype, extensions);
+	blacken: function (ratio) {
+		var hwb = this.values.hwb;
+		hwb[2] += hwb[2] * ratio;
+		this.setValues(''hwb'', hwb);
+		return this;
+	},
 
-			ChartElement.__super__ = parent.prototype;
+	greyscale: function () {
+		var rgb = this.values.rgb;
+		// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
+		var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
+		this.setValues(''rgb'', [val, val, val]);
+		return this;
+	},
 
-			return ChartElement;
-		},
-		noop = helpers.noop = function(){},
-		uid = helpers.uid = (function(){
-			var id=0;
-			return function(){
-				return "chart-" + id++;
-			};
-		})(),
-		warn = helpers.warn = function(str){
-			//Method for warning of errors
-			if (window.console && typeof window.console.warn == "function") console.warn(str);
-		},
-		amd = helpers.amd = (typeof define == ''function'' && define.amd),
-		//-- Math methods
-		isNumber = helpers.isNumber = function(n){
-			return !isNaN(parseFloat(n)) && isFinite(n);
-		},
-		max = helpers.max = function(array){
-			return Math.max.apply( Math, array );
-		},
-		min = helpers.min = function(array){
-			return Math.min.apply( Math, array );
-		},
-		cap = helpers.cap = function(valueToCap,maxValue,minValue){
-			if(isNumber(maxValue)) {
-				if( valueToCap > maxValue ) {
-					return maxValue;
-				}
-			}
-			else if(isNumber(minValue)){
-				if ( valueToCap < minValue ){
-					return minValue;
+	clearer: function (ratio) {
+		var alpha = this.values.alpha;
+		this.setValues(''alpha'', alpha - (alpha * ratio));
+		return this;
+	},
+
+	opaquer: function (ratio) {
+		var alpha = this.values.alpha;
+		this.setValues(''alpha'', alpha + (alpha * ratio));
+		return this;
+	},
+
+	rotate: function (degrees) {
+		var hsl = this.values.hsl;
+		var hue = (hsl[0] + degrees) % 360;
+		hsl[0] = hue < 0 ? 360 + hue : hue;
+		this.setValues(''hsl'', hsl);
+		return this;
+	},
+
+	/**
+	 * Ported from sass implementation in C
+	 * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
+	 */
+	mix: function (mixinColor, weight) {
+		var color1 = this;
+		var color2 = mixinColor;
+		var p = weight === undefined ? 0.5 : weight;
+
+		var w = 2 * p - 1;
+		var a = color1.alpha() - color2.alpha();
+
+		var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
+		var w2 = 1 - w1;
+
+		return this
+			.rgb(
+				w1 * color1.red() + w2 * color2.red(),
+				w1 * color1.green() + w2 * color2.green(),
+				w1 * color1.blue() + w2 * color2.blue()
+			)
+			.alpha(color1.alpha() * p + color2.alpha() * (1 - p));
+	},
+
+	toJSON: function () {
+		return this.rgb();
+	},
+
+	clone: function () {
+		// NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
+		// making the final build way to big to embed in Chart.js. So let''s do it manually,
+		// assuming that values to clone are 1 dimension arrays containing only numbers,
+		// except ''alpha'' which is a number.
+		var result = new Color();
+		var source = this.values;
+		var target = result.values;
+		var value, type;
+
+		for (var prop in source) {
+			if (source.hasOwnProperty(prop)) {
+				value = source[prop];
+				type = ({}).toString.call(value);
+				if (type === ''[object Array]'') {
+					target[prop] = value.slice(0);
+				} else if (type === ''[object Number]'') {
+					target[prop] = value;
+				} else {
+					console.error(''unexpected color value:'', value);
 				}
 			}
-			return valueToCap;
-		},
-		getDecimalPlaces = helpers.getDecimalPlaces = function(num){
-			if (num%1!==0 && isNumber(num)){
-				return num.toString().split(".")[1].length;
-			}
-			else {
-				return 0;
-			}
-		},
-		toRadians = helpers.radians = function(degrees){
-			return degrees * (Math.PI/180);
-		},
-		// Gets the angle from vertical upright to the point about a centre.
-		getAngleFromPoint = helpers.getAngleFromPoint = function(centrePoint, anglePoint){
-			var distanceFromXCenter = anglePoint.x - centrePoint.x,
-				distanceFromYCenter = anglePoint.y - centrePoint.y,
-				radialDistanceFromCenter = Math.sqrt( distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
+		}
 
+		return result;
+	}
+};
+
+Color.prototype.spaces = {
+	rgb: [''red'', ''green'', ''blue''],
+	hsl: [''hue'', ''saturation'', ''lightness''],
+	hsv: [''hue'', ''saturation'', ''value''],
+	hwb: [''hue'', ''whiteness'', ''blackness''],
+	cmyk: [''cyan'', ''magenta'', ''yellow'', ''black'']
+};
+
+Color.prototype.maxes = {
+	rgb: [255, 255, 255],
+	hsl: [360, 100, 100],
+	hsv: [360, 100, 100],
+	hwb: [360, 100, 100],
+	cmyk: [100, 100, 100, 100]
+};
+
+Color.prototype.getValues = function (space) {
+	var values = this.values;
+	var vals = {};
+
+	for (var i = 0; i < space.length; i++) {
+		vals[space.charAt(i)] = values[space][i];
+	}
 
-			var angle = Math.PI * 2 + Math.atan2(distanceFromYCenter, distanceFromXCenter);
+	if (values.alpha !== 1) {
+		vals.a = values.alpha;
+	}
 
-			//If the segment is in the top left quadrant, we need to add another rotation to the angle
-			if (distanceFromXCenter < 0 && distanceFromYCenter < 0){
-				angle += Math.PI*2;
-			}
+	// {r: 255, g: 255, b: 255, a: 0.4}
+	return vals;
+};
+
+Color.prototype.setValues = function (space, vals) {
+	var values = this.values;
+	var spaces = this.spaces;
+	var maxes = this.maxes;
+	var alpha = 1;
+	var i;
+
+	this.valid = true;
+
+	if (space === ''alpha'') {
+		alpha = vals;
+	} else if (vals.length) {
+		// [10, 10, 10]
+		values[space] = vals.slice(0, space.length);
+		alpha = vals[space.length];
+	} else if (vals[space.charAt(0)] !== undefined) {
+		// {r: 10, g: 10, b: 10}
+		for (i = 0; i < space.length; i++) {
+			values[space][i] = vals[space.charAt(i)];
+		}
 
-			return {
-				angle: angle,
-				distance: radialDistanceFromCenter
-			};
-		},
-		aliasPixel = helpers.aliasPixel = function(pixelWidth){
-			return (pixelWidth % 2 === 0) ? 0 : 0.5;
-		},
-		splineCurve = helpers.splineCurve = function(FirstPoint,MiddlePoint,AfterPoint,t){
-			//Props to Rob Spencer at scaled innovation for his post on splining between points
-			//http://scaledinnovation.com/analytics/splines/aboutSplines.html
-			var d01=Math.sqrt(Math.pow(MiddlePoint.x-FirstPoint.x,2)+Math.pow(MiddlePoint.y-FirstPoint.y,2)),
-				d12=Math.sqrt(Math.pow(AfterPoint.x-MiddlePoint.x,2)+Math.pow(AfterPoint.y-MiddlePoint.y,2)),
-				fa=t*d01/(d01+d12),// scaling factor for triangle Ta
-				fb=t*d12/(d01+d12);
-			return {
-				inner : {
-					x : MiddlePoint.x-fa*(AfterPoint.x-FirstPoint.x),
-					y : MiddlePoint.y-fa*(AfterPoint.y-FirstPoint.y)
-				},
-				outer : {
-					x: MiddlePoint.x+fb*(AfterPoint.x-FirstPoint.x),
-					y : MiddlePoint.y+fb*(AfterPoint.y-FirstPoint.y)
-				}
-			};
-		},
-		calculateOrderOfMagnitude = helpers.calculateOrderOfMagnitude = function(val){
-			return Math.floor(Math.log(val) / Math.LN10);
-		},
-		calculateScaleRange = helpers.calculateScaleRange = function(valuesArray, drawingSize, textSize, startFromZero, integersOnly){
-
-			//Set a minimum step of two - a point at the top of the graph, and a point at the base
-			var minSteps = 2,
-				maxSteps = Math.floor(drawingSize/(textSize * 1.5)),
-				skipFitting = (minSteps >= maxSteps);
-
-			var maxValue = max(valuesArray),
-				minValue = min(valuesArray);
-
-			// We need some degree of seperation here to calculate the scales if all the values are the same
-			// Adding/minusing 0.5 will give us a range of 1.
-			if (maxValue === minValue){
-				maxValue += 0.5;
-				// So we don''t end up with a graph with a negative start value if we''ve said always start from zero
-				if (minValue >= 0.5 && !startFromZero){
-					minValue -= 0.5;
-				}
-				else{
-					// Make up a whole number above the values
-					maxValue += 0.5;
-				}
-			}
+		alpha = vals.a;
+	} else if (vals[spaces[space][0]] !== undefined) {
+		// {red: 10, green: 10, blue: 10}
+		var chans = spaces[space];
 
-			var	valueRange = Math.abs(maxValue - minValue),
-				rangeOrderOfMagnitude = calculateOrderOfMagnitude(valueRange),
-				graphMax = Math.ceil(maxValue / (1 * Math.pow(10, rangeOrderOfMagnitude))) * Math.pow(10, rangeOrderOfMagnitude),
-				graphMin = (startFromZero) ? 0 : Math.floor(minValue / (1 * Math.pow(10, rangeOrderOfMagnitude))) * Math.pow(10, rangeOrderOfMagnitude),
-				graphRange = graphMax - graphMin,
-				stepValue = Math.pow(10, rangeOrderOfMagnitude),
-				numberOfSteps = Math.round(graphRange / stepValue);
-
-			//If we have more space on the graph we''ll use it to give more definition to the data
-			while((numberOfSteps > maxSteps || (numberOfSteps * 2) < maxSteps) && !skipFitting) {
-				if(numberOfSteps > maxSteps){
-					stepValue *=2;
-					numberOfSteps = Math.round(graphRange/stepValue);
-					// Don''t ever deal with a decimal number of steps - cancel fitting and just use the minimum number of steps.
-					if (numberOfSteps % 1 !== 0){
-						skipFitting = true;
-					}
-				}
-				//We can fit in double the amount of scale points on the scale
-				else{
-					//If user has declared ints only, and the step value isn''t a decimal
-					if (integersOnly && rangeOrderOfMagnitude >= 0){
-						//If the user has said integers only, we need to check that making the scale more granular wouldn''t make it a float
-						if(stepValue/2 % 1 === 0){
-							stepValue /=2;
-							numberOfSteps = Math.round(graphRange/stepValue);
-						}
-						//If it would make it a float break out of the loop
-						else{
-							break;
-						}
-					}
-					//If the scale doesn''t have to be an int, make the scale more granular anyway.
-					else{
-						stepValue /=2;
-						numberOfSteps = Math.round(graphRange/stepValue);
-					}
+		for (i = 0; i < space.length; i++) {
+			values[space][i] = vals[chans[i]];
+		}
 
-				}
-			}
+		alpha = vals.alpha;
+	}
 
-			if (skipFitting){
-				numberOfSteps = minSteps;
-				stepValue = graphRange / numberOfSteps;
-			}
+	values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));
 
-			return {
-				steps : numberOfSteps,
-				stepValue : stepValue,
-				min : graphMin,
-				max	: graphMin + (numberOfSteps * stepValue)
-			};
+	if (space === ''alpha'') {
+		return false;
+	}
 
-		},
-		/* jshint ignore:start */
-		// Blows up jshint errors based on the new Function constructor
-		//Templating methods
-		//Javascript micro templating by John Resig - source at http://ejohn.org/blog/javascript-micro-templating/
-		template = helpers.template = function(templateString, valuesObject){
-
-			// If templateString is function rather than string-template - call the function for valuesObject
-
-			if(templateString instanceof Function){
-			 	return templateString(valuesObject);
-		 	}
-
-			var cache = {};
-			function tmpl(str, data){
-				// Figure out if we''re getting a template, or if we need to
-				// load the template - and be sure to cache the result.
-				var fn = !/\W/.test(str) ?
-				cache[str] = cache[str] :
-
-				// Generate a reusable function that will serve as a template
-				// generator (and which will be cached).
-				new Function("obj",
-					"var p=[],print=function(){p.push.apply(p,arguments);};" +
-
-					// Introduce the data as local variables using with(){}
-					"with(obj){p.push(''" +
-
-					// Convert the template into pure JavaScript
-					str
-						.replace(/[\r\t\n]/g, " ")
-						.split("<%").join("\t")
-						.replace(/((^|%>)[^\t]*)''/g, "$1\r")
-						.replace(/\t=(.*?)%>/g, "'',$1,''")
-						.split("\t").join("'');")
-						.split("%>").join("p.push(''")
-						.split("\r").join("\\''") +
-					"'');}return p.join('''');"
-				);
+	var capped;
 
-				// Provide some basic currying to the user
-				return data ? fn( data ) : fn;
-			}
-			return tmpl(templateString,valuesObject);
-		},
-		/* jshint ignore:end */
-		generateLabels = helpers.generateLabels = function(templateString,numberOfSteps,graphMin,stepValue){
-			var labelsArray = new Array(numberOfSteps);
-			if (labelTemplateString){
-				each(labelsArray,function(val,index){
-					labelsArray[index] = template(templateString,{value: (graphMin + (stepValue*(index+1)))});
-				});
-			}
-			return labelsArray;
-		},
-		//--Animation methods
-		//Easing functions adapted from Robert Penner''s easing equations
-		//http://www.robertpenner.com/easing/
-		easingEffects = helpers.easingEffects = {
-			linear: function (t) {
-				return t;
-			},
-			easeInQuad: function (t) {
-				return t * t;
-			},
-			easeOutQuad: function (t) {
-				return -1 * t * (t - 2);
-			},
-			easeInOutQuad: function (t) {
-				if ((t /= 1 / 2) < 1) return 1 / 2 * t * t;
-				return -1 / 2 * ((--t) * (t - 2) - 1);
-			},
-			easeInCubic: function (t) {
-				return t * t * t;
-			},
-			easeOutCubic: function (t) {
-				return 1 * ((t = t / 1 - 1) * t * t + 1);
-			},
-			easeInOutCubic: function (t) {
-				if ((t /= 1 / 2) < 1) return 1 / 2 * t * t * t;
-				return 1 / 2 * ((t -= 2) * t * t + 2);
-			},
-			easeInQuart: function (t) {
-				return t * t * t * t;
-			},
-			easeOutQuart: function (t) {
-				return -1 * ((t = t / 1 - 1) * t * t * t - 1);
-			},
-			easeInOutQuart: function (t) {
-				if ((t /= 1 / 2) < 1) return 1 / 2 * t * t * t * t;
-				return -1 / 2 * ((t -= 2) * t * t * t - 2);
-			},
-			easeInQuint: function (t) {
-				return 1 * (t /= 1) * t * t * t * t;
-			},
-			easeOutQuint: function (t) {
-				return 1 * ((t = t / 1 - 1) * t * t * t * t + 1);
-			},
-			easeInOutQuint: function (t) {
-				if ((t /= 1 / 2) < 1) return 1 / 2 * t * t * t * t * t;
-				return 1 / 2 * ((t -= 2) * t * t * t * t + 2);
-			},
-			easeInSine: function (t) {
-				return -1 * Math.cos(t / 1 * (Math.PI / 2)) + 1;
-			},
-			easeOutSine: function (t) {
-				return 1 * Math.sin(t / 1 * (Math.PI / 2));
-			},
-			easeInOutSine: function (t) {
-				return -1 / 2 * (Math.cos(Math.PI * t / 1) - 1);
-			},
-			easeInExpo: function (t) {
-				return (t === 0) ? 1 : 1 * Math.pow(2, 10 * (t / 1 - 1));
-			},
-			easeOutExpo: function (t) {
-				return (t === 1) ? 1 : 1 * (-Math.pow(2, -10 * t / 1) + 1);
-			},
-			easeInOutExpo: function (t) {
-				if (t === 0) return 0;
-				if (t === 1) return 1;
-				if ((t /= 1 / 2) < 1) return 1 / 2 * Math.pow(2, 10 * (t - 1));
-				return 1 / 2 * (-Math.pow(2, -10 * --t) + 2);
-			},
-			easeInCirc: function (t) {
-				if (t >= 1) return t;
-				return -1 * (Math.sqrt(1 - (t /= 1) * t) - 1);
-			},
-			easeOutCirc: function (t) {
-				return 1 * Math.sqrt(1 - (t = t / 1 - 1) * t);
+	// cap values of the space prior converting all values
+	for (i = 0; i < space.length; i++) {
+		capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
+		values[space][i] = Math.round(capped);
+	}
+
+	// convert to all the other color spaces
+	for (var sname in spaces) {
+		if (sname !== space) {
+			values[sname] = colorConvert[space][sname](values[space]);
+		}
+	}
+
+	return true;
+};
+
+Color.prototype.setSpace = function (space, args) {
+	var vals = args[0];
+
+	if (vals === undefined) {
+		// color.rgb()
+		return this.getValues(space);
+	}
+
+	// color.rgb(10, 10, 10)
+	if (typeof vals === ''number'') {
+		vals = Array.prototype.slice.call(args);
+	}
+
+	this.setValues(space, vals);
+	return this;
+};
+
+Color.prototype.setChannel = function (space, index, val) {
+	var svalues = this.values[space];
+	if (val === undefined) {
+		// color.red()
+		return svalues[index];
+	} else if (val === svalues[index]) {
+		// color.red(color.red())
+		return this;
+	}
+
+	// color.red(100)
+	svalues[index] = val;
+	this.setValues(space, svalues);
+
+	return this;
+};
+
+if (typeof window !== ''undefined'') {
+	window.Color = Color;
+}
+
+var chartjsColor = Color;
+
+/**
+ * @namespace Chart.helpers
+ */
+var helpers = {
+	/**
+	 * An empty function that can be used, for example, for optional callback.
+	 */
+	noop: function() {},
+
+	/**
+	 * Returns a unique id, sequentially generated from a global variable.
+	 * @returns {number}
+	 * @function
+	 */
+	uid: (function() {
+		var id = 0;
+		return function() {
+			return id++;
+		};
+	}()),
+
+	/**
+	 * Returns true if `value` is neither null nor undefined, else returns false.
+	 * @param {*} value - The value to test.
+	 * @returns {boolean}
+	 * @since 2.7.0
+	 */
+	isNullOrUndef: function(value) {
+		return value === null || typeof value === ''undefined'';
+	},
+
+	/**
+	 * Returns true if `value` is an array (including typed arrays), else returns false.
+	 * @param {*} value - The value to test.
+	 * @returns {boolean}
+	 * @function
+	 */
+	isArray: function(value) {
+		if (Array.isArray && Array.isArray(value)) {
+			return true;
+		}
+		var type = Object.prototype.toString.call(value);
+		if (type.substr(0, 7) === ''[object'' && type.substr(-6) === ''Array]'') {
+			return true;
+		}
+		return false;
+	},
+
+	/**
+	 * Returns true if `value` is an object (excluding null), else returns false.
+	 * @param {*} value - The value to test.
+	 * @returns {boolean}
+	 * @since 2.7.0
+	 */
+	isObject: function(value) {
+		return value !== null && Object.prototype.toString.call(value) === ''[object Object]'';
+	},
+
+	/**
+	 * Returns true if `value` is a finite number, else returns false
+	 * @param {*} value  - The value to test.
+	 * @returns {boolean}
+	 */
+	isFinite: function(value) {
+		return (typeof value === ''number'' || value instanceof Number) && isFinite(value);
+	},
+
+	/**
+	 * Returns `value` if defined, else returns `defaultValue`.
+	 * @param {*} value - The value to return if defined.
+	 * @param {*} defaultValue - The value to return if `value` is undefined.
+	 * @returns {*}
+	 */
+	valueOrDefault: function(value, defaultValue) {
+		return typeof value === ''undefined'' ? defaultValue : value;
+	},
+
+	/**
+	 * Returns value at the given `index` in array if defined, else returns `defaultValue`.
+	 * @param {Array} value - The array to lookup for value at `index`.
+	 * @param {number} index - The index in `value` to lookup for value.
+	 * @param {*} defaultValue - The value to return if `value[index]` is undefined.
+	 * @returns {*}
+	 */
+	valueAtIndexOrDefault: function(value, index, defaultValue) {
+		return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
+	},
+
+	/**
+	 * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
+	 * value returned by `fn`. If `fn` is not a function, this method returns undefined.
+	 * @param {function} fn - The function to call.
+	 * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
+	 * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.
+	 * @returns {*}
+	 */
+	callback: function(fn, args, thisArg) {
+		if (fn && typeof fn.call === ''function'') {
+			return fn.apply(thisArg, args);
+		}
+	},
+
+	/**
+	 * Note(SB) for performance sake, this method should only be used when loopable type
+	 * is unknown or in none intensive code (not called often and small loopable). Else
+	 * it''s preferable to use a regular for() loop and save extra function calls.
+	 * @param {object|Array} loopable - The object or array to be iterated.
+	 * @param {function} fn - The function to call for each item.
+	 * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.
+	 * @param {boolean} [reverse] - If true, iterates backward on the loopable.
+	 */
+	each: function(loopable, fn, thisArg, reverse) {
+		var i, len, keys;
+		if (helpers.isArray(loopable)) {
+			len = loopable.length;
+			if (reverse) {
+				for (i = len - 1; i >= 0; i--) {
+					fn.call(thisArg, loopable[i], i);
+				}
+			} else {
+				for (i = 0; i < len; i++) {
+					fn.call(thisArg, loopable[i], i);
+				}
+			}
+		} else if (helpers.isObject(loopable)) {
+			keys = Object.keys(loopable);
+			len = keys.length;
+			for (i = 0; i < len; i++) {
+				fn.call(thisArg, loopable[keys[i]], keys[i]);
+			}
+		}
+	},
+
+	/**
+	 * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
+	 * @see https://stackoverflow.com/a/14853974
+	 * @param {Array} a0 - The array to compare
+	 * @param {Array} a1 - The array to compare
+	 * @returns {boolean}
+	 */
+	arrayEquals: function(a0, a1) {
+		var i, ilen, v0, v1;
+
+		if (!a0 || !a1 || a0.length !== a1.length) {
+			return false;
+		}
+
+		for (i = 0, ilen = a0.length; i < ilen; ++i) {
+			v0 = a0[i];
+			v1 = a1[i];
+
+			if (v0 instanceof Array && v1 instanceof Array) {
+				if (!helpers.arrayEquals(v0, v1)) {
+					return false;
+				}
+			} else if (v0 !== v1) {
+				// NOTE: two different object instances will never be equal: {x:20} != {x:20}
+				return false;
+			}
+		}
+
+		return true;
+	},
+
+	/**
+	 * Returns a deep copy of `source` without keeping references on objects and arrays.
+	 * @param {*} source - The value to clone.
+	 * @returns {*}
+	 */
+	clone: function(source) {
+		if (helpers.isArray(source)) {
+			return source.map(helpers.clone);
+		}
+
+		if (helpers.isObject(source)) {
+			var target = {};
+			var keys = Object.keys(source);
+			var klen = keys.length;
+			var k = 0;
+
+			for (; k < klen; ++k) {
+				target[keys[k]] = helpers.clone(source[keys[k]]);
+			}
+
+			return target;
+		}
+
+		return source;
+	},
+
+	/**
+	 * The default merger when Chart.helpers.merge is called without merger option.
+	 * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback.
+	 * @private
+	 */
+	_merger: function(key, target, source, options) {
+		var tval = target[key];
+		var sval = source[key];
+
+		if (helpers.isObject(tval) && helpers.isObject(sval)) {
+			helpers.merge(tval, sval, options);
+		} else {
+			target[key] = helpers.clone(sval);
+		}
+	},
+
+	/**
+	 * Merges source[key] in target[key] only if target[key] is undefined.
+	 * @private
+	 */
+	_mergerIf: function(key, target, source) {
+		var tval = target[key];
+		var sval = source[key];
+
+		if (helpers.isObject(tval) && helpers.isObject(sval)) {
+			helpers.mergeIf(tval, sval);
+		} else if (!target.hasOwnProperty(key)) {
+			target[key] = helpers.clone(sval);
+		}
+	},
+
+	/**
+	 * Recursively deep copies `source` properties into `target` with the given `options`.
+	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
+	 * @param {object} target - The target object in which all sources are merged into.
+	 * @param {object|object[]} source - Object(s) to merge into `target`.
+	 * @param {object} [options] - Merging options:
+	 * @param {function} [options.merger] - The merge method (key, target, source, options)
+	 * @returns {object} The `target` object.
+	 */
+	merge: function(target, source, options) {
+		var sources = helpers.isArray(source) ? source : [source];
+		var ilen = sources.length;
+		var merge, i, keys, klen, k;
+
+		if (!helpers.isObject(target)) {
+			return target;
+		}
+
+		options = options || {};
+		merge = options.merger || helpers._merger;
+
+		for (i = 0; i < ilen; ++i) {
+			source = sources[i];
+			if (!helpers.isObject(source)) {
+				continue;
+			}
+
+			keys = Object.keys(source);
+			for (k = 0, klen = keys.length; k < klen; ++k) {
+				merge(keys[k], target, source, options);
+			}
+		}
+
+		return target;
+	},
+
+	/**
+	 * Recursively deep copies `source` properties into `target` *only* if not defined in target.
+	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
+	 * @param {object} target - The target object in which all sources are merged into.
+	 * @param {object|object[]} source - Object(s) to merge into `target`.
+	 * @returns {object} The `target` object.
+	 */
+	mergeIf: function(target, source) {
+		return helpers.merge(target, source, {merger: helpers._mergerIf});
+	},
+
+	/**
+	 * Applies the contents of two or more objects together into the first object.
+	 * @param {object} target - The target object in which all objects are merged into.
+	 * @param {object} arg1 - Object containing additional properties to merge in target.
+	 * @param {object} argN - Additional objects containing properties to merge in target.
+	 * @returns {object} The `target` object.
+	 */
+	extend: function(target) {
+		var setFn = function(value, key) {
+			target[key] = value;
+		};
+		for (var i = 1, ilen = arguments.length; i < ilen; ++i) {
+			helpers.each(arguments[i], setFn);
+		}
+		return target;
+	},
+
+	/**
+	 * Basic javascript inheritance based on the model created in Backbone.js
+	 */
+	inherits: function(extensions) {
+		var me = this;
+		var ChartElement = (extensions && extensions.hasOwnProperty(''constructor'')) ? extensions.constructor : function() {
+			return me.apply(this, arguments);
+		};
+
+		var Surrogate = function() {
+			this.constructor = ChartElement;
+		};
+
+		Surrogate.prototype = me.prototype;
+		ChartElement.prototype = new Surrogate();
+		ChartElement.extend = helpers.inherits;
+
+		if (extensions) {
+			helpers.extend(ChartElement.prototype, extensions);
+		}
+
+		ChartElement.__super__ = me.prototype;
+		return ChartElement;
+	}
+};
+
+var helpers_core = helpers;
+
+// DEPRECATIONS
+
+/**
+ * Provided for backward compatibility, use Chart.helpers.callback instead.
+ * @function Chart.helpers.callCallback
+ * @deprecated since version 2.6.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.callCallback = helpers.callback;
+
+/**
+ * Provided for backward compatibility, use Array.prototype.indexOf instead.
+ * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
+ * @function Chart.helpers.indexOf
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.indexOf = function(array, item, fromIndex) {
+	return Array.prototype.indexOf.call(array, item, fromIndex);
+};
+
+/**
+ * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
+ * @function Chart.helpers.getValueOrDefault
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.getValueOrDefault = helpers.valueOrDefault;
+
+/**
+ * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
+ * @function Chart.helpers.getValueAtIndexOrDefault
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
+
+/**
+ * Easing functions adapted from Robert Penner''s easing equations.
+ * @namespace Chart.helpers.easingEffects
+ * @see http://www.robertpenner.com/easing/
+ */
+var effects = {
+	linear: function(t) {
+		return t;
+	},
+
+	easeInQuad: function(t) {
+		return t * t;
+	},
+
+	easeOutQuad: function(t) {
+		return -t * (t - 2);
+	},
+
+	easeInOutQuad: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t;
+		}
+		return -0.5 * ((--t) * (t - 2) - 1);
+	},
+
+	easeInCubic: function(t) {
+		return t * t * t;
+	},
+
+	easeOutCubic: function(t) {
+		return (t = t - 1) * t * t + 1;
+	},
+
+	easeInOutCubic: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t * t;
+		}
+		return 0.5 * ((t -= 2) * t * t + 2);
+	},
+
+	easeInQuart: function(t) {
+		return t * t * t * t;
+	},
+
+	easeOutQuart: function(t) {
+		return -((t = t - 1) * t * t * t - 1);
+	},
+
+	easeInOutQuart: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t * t * t;
+		}
+		return -0.5 * ((t -= 2) * t * t * t - 2);
+	},
+
+	easeInQuint: function(t) {
+		return t * t * t * t * t;
+	},
+
+	easeOutQuint: function(t) {
+		return (t = t - 1) * t * t * t * t + 1;
+	},
+
+	easeInOutQuint: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t * t * t * t;
+		}
+		return 0.5 * ((t -= 2) * t * t * t * t + 2);
+	},
+
+	easeInSine: function(t) {
+		return -Math.cos(t * (Math.PI / 2)) + 1;
+	},
+
+	easeOutSine: function(t) {
+		return Math.sin(t * (Math.PI / 2));
+	},
+
+	easeInOutSine: function(t) {
+		return -0.5 * (Math.cos(Math.PI * t) - 1);
+	},
+
+	easeInExpo: function(t) {
+		return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
+	},
+
+	easeOutExpo: function(t) {
+		return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
+	},
+
+	easeInOutExpo: function(t) {
+		if (t === 0) {
+			return 0;
+		}
+		if (t === 1) {
+			return 1;
+		}
+		if ((t /= 0.5) < 1) {
+			return 0.5 * Math.pow(2, 10 * (t - 1));
+		}
+		return 0.5 * (-Math.pow(2, -10 * --t) + 2);
+	},
+
+	easeInCirc: function(t) {
+		if (t >= 1) {
+			return t;
+		}
+		return -(Math.sqrt(1 - t * t) - 1);
+	},
+
+	easeOutCirc: function(t) {
+		return Math.sqrt(1 - (t = t - 1) * t);
+	},
+
+	easeInOutCirc: function(t) {
+		if ((t /= 0.5) < 1) {
+			return -0.5 * (Math.sqrt(1 - t * t) - 1);
+		}
+		return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
+	},
+
+	easeInElastic: function(t) {
+		var s = 1.70158;
+		var p = 0;
+		var a = 1;
+		if (t === 0) {
+			return 0;
+		}
+		if (t === 1) {
+			return 1;
+		}
+		if (!p) {
+			p = 0.3;
+		}
+		if (a < 1) {
+			a = 1;
+			s = p / 4;
+		} else {
+			s = p / (2 * Math.PI) * Math.asin(1 / a);
+		}
+		return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
+	},
+
+	easeOutElastic: function(t) {
+		var s = 1.70158;
+		var p = 0;
+		var a = 1;
+		if (t === 0) {
+			return 0;
+		}
+		if (t === 1) {
+			return 1;
+		}
+		if (!p) {
+			p = 0.3;
+		}
+		if (a < 1) {
+			a = 1;
+			s = p / 4;
+		} else {
+			s = p / (2 * Math.PI) * Math.asin(1 / a);
+		}
+		return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
+	},
+
+	easeInOutElastic: function(t) {
+		var s = 1.70158;
+		var p = 0;
+		var a = 1;
+		if (t === 0) {
+			return 0;
+		}
+		if ((t /= 0.5) === 2) {
+			return 1;
+		}
+		if (!p) {
+			p = 0.45;
+		}
+		if (a < 1) {
+			a = 1;
+			s = p / 4;
+		} else {
+			s = p / (2 * Math.PI) * Math.asin(1 / a);
+		}
+		if (t < 1) {
+			return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
+		}
+		return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
+	},
+	easeInBack: function(t) {
+		var s = 1.70158;
+		return t * t * ((s + 1) * t - s);
+	},
+
+	easeOutBack: function(t) {
+		var s = 1.70158;
+		return (t = t - 1) * t * ((s + 1) * t + s) + 1;
+	},
+
+	easeInOutBack: function(t) {
+		var s = 1.70158;
+		if ((t /= 0.5) < 1) {
+			return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
+		}
+		return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
+	},
+
+	easeInBounce: function(t) {
+		return 1 - effects.easeOutBounce(1 - t);
+	},
+
+	easeOutBounce: function(t) {
+		if (t < (1 / 2.75)) {
+			return 7.5625 * t * t;
+		}
+		if (t < (2 / 2.75)) {
+			return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
+		}
+		if (t < (2.5 / 2.75)) {
+			return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
+		}
+		return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
+	},
+
+	easeInOutBounce: function(t) {
+		if (t < 0.5) {
+			return effects.easeInBounce(t * 2) * 0.5;
+		}
+		return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
+	}
+};
+
+var helpers_easing = {
+	effects: effects
+};
+
+// DEPRECATIONS
+
+/**
+ * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
+ * @function Chart.helpers.easingEffects
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers_core.easingEffects = effects;
+
+var PI = Math.PI;
+var RAD_PER_DEG = PI / 180;
+var DOUBLE_PI = PI * 2;
+var HALF_PI = PI / 2;
+var QUARTER_PI = PI / 4;
+var TWO_THIRDS_PI = PI * 2 / 3;
+
+/**
+ * @namespace Chart.helpers.canvas
+ */
+var exports$1 = {
+	/**
+	 * Clears the entire canvas associated to the given `chart`.
+	 * @param {Chart} chart - The chart for which to clear the canvas.
+	 */
+	clear: function(chart) {
+		chart.ctx.clearRect(0, 0, chart.width, chart.height);
+	},
+
+	/**
+	 * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
+	 * given size (width, height) and the same `radius` for all corners.
+	 * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
+	 * @param {number} x - The x axis of the coordinate for the rectangle starting point.
+	 * @param {number} y - The y axis of the coordinate for the rectangle starting point.
+	 * @param {number} width - The rectangle''s width.
+	 * @param {number} height - The rectangle''s height.
+	 * @param {number} radius - The rounded amount (in pixels) for the four corners.
+	 * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
+	 */
+	roundedRect: function(ctx, x, y, width, height, radius) {
+		if (radius) {
+			var r = Math.min(radius, height / 2, width / 2);
+			var left = x + r;
+			var top = y + r;
+			var right = x + width - r;
+			var bottom = y + height - r;
+
+			ctx.moveTo(x, top);
+			if (left < right && top < bottom) {
+				ctx.arc(left, top, r, -PI, -HALF_PI);
+				ctx.arc(right, top, r, -HALF_PI, 0);
+				ctx.arc(right, bottom, r, 0, HALF_PI);
+				ctx.arc(left, bottom, r, HALF_PI, PI);
+			} else if (left < right) {
+				ctx.moveTo(left, y);
+				ctx.arc(right, top, r, -HALF_PI, HALF_PI);
+				ctx.arc(left, top, r, HALF_PI, PI + HALF_PI);
+			} else if (top < bottom) {
+				ctx.arc(left, top, r, -PI, 0);
+				ctx.arc(left, bottom, r, 0, PI);
+			} else {
+				ctx.arc(left, top, r, -PI, PI);
+			}
+			ctx.closePath();
+			ctx.moveTo(x, y);
+		} else {
+			ctx.rect(x, y, width, height);
+		}
+	},
+
+	drawPoint: function(ctx, style, radius, x, y, rotation) {
+		var type, xOffset, yOffset, size, cornerRadius;
+		var rad = (rotation || 0) * RAD_PER_DEG;
+
+		if (style && typeof style === ''object'') {
+			type = style.toString();
+			if (type === ''[object HTMLImageElement]'' || type === ''[object HTMLCanvasElement]'') {
+				ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height);
+				return;
+			}
+		}
+
+		if (isNaN(radius) || radius <= 0) {
+			return;
+		}
+
+		ctx.beginPath();
+
+		switch (style) {
+		// Default includes circle
+		default:
+			ctx.arc(x, y, radius, 0, DOUBLE_PI);
+			ctx.closePath();
+			break;
+		case ''triangle'':
+			ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
+			rad += TWO_THIRDS_PI;
+			ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
+			rad += TWO_THIRDS_PI;
+			ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
+			ctx.closePath();
+			break;
+		case ''rectRounded'':
+			// NOTE: the rounded rect implementation changed to use `arc` instead of
+			// `quadraticCurveTo` since it generates better results when rect is
+			// almost a circle. 0.516 (instead of 0.5) produces results with visually
+			// closer proportion to the previous impl and it is inscribed in the
+			// circle with `radius`. For more details, see the following PRs:
+			// https://github.com/chartjs/Chart.js/issues/5597
+			// https://github.com/chartjs/Chart.js/issues/5858
+			cornerRadius = radius * 0.516;
+			size = radius - cornerRadius;
+			xOffset = Math.cos(rad + QUARTER_PI) * size;
+			yOffset = Math.sin(rad + QUARTER_PI) * size;
+			ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);
+			ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad);
+			ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI);
+			ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);
+			ctx.closePath();
+			break;
+		case ''rect'':
+			if (!rotation) {
+				size = Math.SQRT1_2 * radius;
+				ctx.rect(x - size, y - size, 2 * size, 2 * size);
+				break;
+			}
+			rad += QUARTER_PI;
+			/* falls through */
+		case ''rectRot'':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			ctx.closePath();
+			break;
+		case ''crossRot'':
+			rad += QUARTER_PI;
+			/* falls through */
+		case ''cross'':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.moveTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			break;
+		case ''star'':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.moveTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			rad += QUARTER_PI;
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.moveTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			break;
+		case ''line'':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			break;
+		case ''dash'':
+			ctx.moveTo(x, y);
+			ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius);
+			break;
+		}
+
+		ctx.fill();
+		ctx.stroke();
+	},
+
+	/**
+	 * Returns true if the point is inside the rectangle
+	 * @param {object} point - The point to test
+	 * @param {object} area - The rectangle
+	 * @returns {boolean}
+	 * @private
+	 */
+	_isPointInArea: function(point, area) {
+		var epsilon = 1e-6; // 1e-6 is margin in pixels for accumulated error.
+
+		return point.x > area.left - epsilon && point.x < area.right + epsilon &&
+			point.y > area.top - epsilon && point.y < area.bottom + epsilon;
+	},
+
+	clipArea: function(ctx, area) {
+		ctx.save();
+		ctx.beginPath();
+		ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
+		ctx.clip();
+	},
+
+	unclipArea: function(ctx) {
+		ctx.restore();
+	},
+
+	lineTo: function(ctx, previous, target, flip) {
+		var stepped = target.steppedLine;
+		if (stepped) {
+			if (stepped === ''middle'') {
+				var midpoint = (previous.x + target.x) / 2.0;
+				ctx.lineTo(midpoint, flip ? target.y : previous.y);
+				ctx.lineTo(midpoint, flip ? previous.y : target.y);
+			} else if ((stepped === ''after'' && !flip) || (stepped !== ''after'' && flip)) {
+				ctx.lineTo(previous.x, target.y);
+			} else {
+				ctx.lineTo(target.x, previous.y);
+			}
+			ctx.lineTo(target.x, target.y);
+			return;
+		}
+
+		if (!target.tension) {
+			ctx.lineTo(target.x, target.y);
+			return;
+		}
+
+		ctx.bezierCurveTo(
+			flip ? previous.controlPointPreviousX : previous.controlPointNextX,
+			flip ? previous.controlPointPreviousY : previous.controlPointNextY,
+			flip ? target.controlPointNextX : target.controlPointPreviousX,
+			flip ? target.controlPointNextY : target.controlPointPreviousY,
+			target.x,
+			target.y);
+	}
+};
+
+var helpers_canvas = exports$1;
+
+// DEPRECATIONS
+
+/**
+ * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
+ * @namespace Chart.helpers.clear
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers_core.clear = exports$1.clear;
+
+/**
+ * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
+ * @namespace Chart.helpers.drawRoundedRectangle
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers_core.drawRoundedRectangle = function(ctx) {
+	ctx.beginPath();
+	exports$1.roundedRect.apply(exports$1, arguments);
+};
+
+var defaults = {
+	/**
+	 * @private
+	 */
+	_set: function(scope, values) {
+		return helpers_core.merge(this[scope] || (this[scope] = {}), values);
+	}
+};
+
+defaults._set(''global'', {
+	defaultColor: ''rgba(0,0,0,0.1)'',
+	defaultFontColor: ''#666'',
+	defaultFontFamily: "''Helvetica Neue'', ''Helvetica'', ''Arial'', sans-serif",
+	defaultFontSize: 12,
+	defaultFontStyle: ''normal'',
+	defaultLineHeight: 1.2,
+	showLines: true
+});
+
+var core_defaults = defaults;
+
+var valueOrDefault = helpers_core.valueOrDefault;
+
+/**
+ * Converts the given font object into a CSS font string.
+ * @param {object} font - A font object.
+ * @return {string} The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font
+ * @private
+ */
+function toFontString(font) {
+	if (!font || helpers_core.isNullOrUndef(font.size) || helpers_core.isNullOrUndef(font.family)) {
+		return null;
+	}
+
+	return (font.style ? font.style + '' '' : '''')
+		+ (font.weight ? font.weight + '' '' : '''')
+		+ font.size + ''px ''
+		+ font.family;
+}
+
+/**
+ * @alias Chart.helpers.options
+ * @namespace
+ */
+var helpers_options = {
+	/**
+	 * Converts the given line height `value` in pixels for a specific font `size`.
+	 * @param {number|string} value - The lineHeight to parse (eg. 1.6, ''14px'', ''75%'', ''1.6em'').
+	 * @param {number} size - The font size (in pixels) used to resolve relative `value`.
+	 * @returns {number} The effective line height in pixels (size * 1.2 if value is invalid).
+	 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
+	 * @since 2.7.0
+	 */
+	toLineHeight: function(value, size) {
+		var matches = ('''' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
+		if (!matches || matches[1] === ''normal'') {
+			return size * 1.2;
+		}
+
+		value = +matches[2];
+
+		switch (matches[3]) {
+		case ''px'':
+			return value;
+		case ''%'':
+			value /= 100;
+			break;
+		default:
+			break;
+		}
+
+		return size * value;
+	},
+
+	/**
+	 * Converts the given value into a padding object with pre-computed width/height.
+	 * @param {number|object} value - If a number, set the value to all TRBL component,
+	 *  else, if and object, use defined properties and sets undefined ones to 0.
+	 * @returns {object} The padding values (top, right, bottom, left, width, height)
+	 * @since 2.7.0
+	 */
+	toPadding: function(value) {
+		var t, r, b, l;
+
+		if (helpers_core.isObject(value)) {
+			t = +value.top || 0;
+			r = +value.right || 0;
+			b = +value.bottom || 0;
+			l = +value.left || 0;
+		} else {
+			t = r = b = l = +value || 0;
+		}
+
+		return {
+			top: t,
+			right: r,
+			bottom: b,
+			left: l,
+			height: t + b,
+			width: l + r
+		};
+	},
+
+	/**
+	 * Parses font options and returns the font object.
+	 * @param {object} options - A object that contains font options to be parsed.
+	 * @return {object} The font object.
+	 * @todo Support font.* options and renamed to toFont().
+	 * @private
+	 */
+	_parseFont: function(options) {
+		var globalDefaults = core_defaults.global;
+		var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
+		var font = {
+			family: valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily),
+			lineHeight: helpers_core.options.toLineHeight(valueOrDefault(options.lineHeight, globalDefaults.defaultLineHeight), size),
+			size: size,
+			style: valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle),
+			weight: null,
+			string: ''''
+		};
+
+		font.string = toFontString(font);
+		return font;
+	},
+
+	/**
+	 * Evaluates the given `inputs` sequentially and returns the first defined value.
+	 * @param {Array} inputs - An array of values, falling back to the last value.
+	 * @param {object} [context] - If defined and the current value is a function, the value
+	 * is called with `context` as first argument and the result becomes the new input.
+	 * @param {number} [index] - If defined and the current value is an array, the value
+	 * at `index` become the new input.
+	 * @since 2.7.0
+	 */
+	resolve: function(inputs, context, index) {
+		var i, ilen, value;
+
+		for (i = 0, ilen = inputs.length; i < ilen; ++i) {
+			value = inputs[i];
+			if (value === undefined) {
+				continue;
+			}
+			if (context !== undefined && typeof value === ''function'') {
+				value = value(context);
+			}
+			if (index !== undefined && helpers_core.isArray(value)) {
+				value = value[index];
+			}
+			if (value !== undefined) {
+				return value;
+			}
+		}
+	}
+};
+
+var helpers$1 = helpers_core;
+var easing = helpers_easing;
+var canvas = helpers_canvas;
+var options = helpers_options;
+helpers$1.easing = easing;
+helpers$1.canvas = canvas;
+helpers$1.options = options;
+
+function interpolate(start, view, model, ease) {
+	var keys = Object.keys(model);
+	var i, ilen, key, actual, origin, target, type, c0, c1;
+
+	for (i = 0, ilen = keys.length; i < ilen; ++i) {
+		key = keys[i];
+
+		target = model[key];
+
+		// if a value is added to the model after pivot() has been called, the view
+		// doesn''t contain it, so let''s initialize the view to the target value.
+		if (!view.hasOwnProperty(key)) {
+			view[key] = target;
+		}
+
+		actual = view[key];
+
+		if (actual === target || key[0] === ''_'') {
+			continue;
+		}
+
+		if (!start.hasOwnProperty(key)) {
+			start[key] = actual;
+		}
+
+		origin = start[key];
+
+		type = typeof target;
+
+		if (type === typeof origin) {
+			if (type === ''string'') {
+				c0 = chartjsColor(origin);
+				if (c0.valid) {
+					c1 = chartjsColor(target);
+					if (c1.valid) {
+						view[key] = c1.mix(c0, ease).rgbString();
+						continue;
+					}
+				}
+			} else if (helpers$1.isFinite(origin) && helpers$1.isFinite(target)) {
+				view[key] = origin + (target - origin) * ease;
+				continue;
+			}
+		}
+
+		view[key] = target;
+	}
+}
+
+var Element = function(configuration) {
+	helpers$1.extend(this, configuration);
+	this.initialize.apply(this, arguments);
+};
+
+helpers$1.extend(Element.prototype, {
+
+	initialize: function() {
+		this.hidden = false;
+	},
+
+	pivot: function() {
+		var me = this;
+		if (!me._view) {
+			me._view = helpers$1.clone(me._model);
+		}
+		me._start = {};
+		return me;
+	},
+
+	transition: function(ease) {
+		var me = this;
+		var model = me._model;
+		var start = me._start;
+		var view = me._view;
+
+		// No animation -> No Transition
+		if (!model || ease === 1) {
+			me._view = model;
+			me._start = null;
+			return me;
+		}
+
+		if (!view) {
+			view = me._view = {};
+		}
+
+		if (!start) {
+			start = me._start = {};
+		}
+
+		interpolate(start, view, model, ease);
+
+		return me;
+	},
+
+	tooltipPosition: function() {
+		return {
+			x: this._model.x,
+			y: this._model.y
+		};
+	},
+
+	hasValue: function() {
+		return helpers$1.isNumber(this._model.x) && helpers$1.isNumber(this._model.y);
+	}
+});
+
+Element.extend = helpers$1.inherits;
+
+var core_element = Element;
+
+var exports$2 = core_element.extend({
+	chart: null, // the animation associated chart instance
+	currentStep: 0, // the current animation step
+	numSteps: 60, // default number of steps
+	easing: '''', // the easing to use for this animation
+	render: null, // render function used by the animation service
+
+	onAnimationProgress: null, // user specified callback to fire on each step of the animation
+	onAnimationComplete: null, // user specified callback to fire when the animation finishes
+});
+
+var core_animation = exports$2;
+
+// DEPRECATIONS
+
+/**
+ * Provided for backward compatibility, use Chart.Animation instead
+ * @prop Chart.Animation#animationObject
+ * @deprecated since version 2.6.0
+ * @todo remove at version 3
+ */
+Object.defineProperty(exports$2.prototype, ''animationObject'', {
+	get: function() {
+		return this;
+	}
+});
+
+/**
+ * Provided for backward compatibility, use Chart.Animation#chart instead
+ * @prop Chart.Animation#chartInstance
+ * @deprecated since version 2.6.0
+ * @todo remove at version 3
+ */
+Object.defineProperty(exports$2.prototype, ''chartInstance'', {
+	get: function() {
+		return this.chart;
+	},
+	set: function(value) {
+		this.chart = value;
+	}
+});
+
+core_defaults._set(''global'', {
+	animation: {
+		duration: 1000,
+		easing: ''easeOutQuart'',
+		onProgress: helpers$1.noop,
+		onComplete: helpers$1.noop
+	}
+});
+
+var core_animations = {
+	animations: [],
+	request: null,
+
+	/**
+	 * @param {Chart} chart - The chart to animate.
+	 * @param {Chart.Animation} animation - The animation that we will animate.
+	 * @param {number} duration - The animation duration in ms.
+	 * @param {boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
+	 */
+	addAnimation: function(chart, animation, duration, lazy) {
+		var animations = this.animations;
+		var i, ilen;
+
+		animation.chart = chart;
+		animation.startTime = Date.now();
+		animation.duration = duration;
+
+		if (!lazy) {
+			chart.animating = true;
+		}
+
+		for (i = 0, ilen = animations.length; i < ilen; ++i) {
+			if (animations[i].chart === chart) {
+				animations[i] = animation;
+				return;
+			}
+		}
+
+		animations.push(animation);
+
+		// If there are no animations queued, manually kickstart a digest, for lack of a better word
+		if (animations.length === 1) {
+			this.requestAnimationFrame();
+		}
+	},
+
+	cancelAnimation: function(chart) {
+		var index = helpers$1.findIndex(this.animations, function(animation) {
+			return animation.chart === chart;
+		});
+
+		if (index !== -1) {
+			this.animations.splice(index, 1);
+			chart.animating = false;
+		}
+	},
+
+	requestAnimationFrame: function() {
+		var me = this;
+		if (me.request === null) {
+			// Skip animation frame requests until the active one is executed.
+			// This can happen when processing mouse events, e.g. ''mousemove''
+			// and ''mouseout'' events will trigger multiple renders.
+			me.request = helpers$1.requestAnimFrame.call(window, function() {
+				me.request = null;
+				me.startDigest();
+			});
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	startDigest: function() {
+		var me = this;
+
+		me.advance();
+
+		// Do we have more stuff to animate?
+		if (me.animations.length > 0) {
+			me.requestAnimationFrame();
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	advance: function() {
+		var animations = this.animations;
+		var animation, chart, numSteps, nextStep;
+		var i = 0;
+
+		// 1 animation per chart, so we are looping charts here
+		while (i < animations.length) {
+			animation = animations[i];
+			chart = animation.chart;
+			numSteps = animation.numSteps;
+
+			// Make sure that currentStep starts at 1
+			// https://github.com/chartjs/Chart.js/issues/6104
+			nextStep = Math.floor((Date.now() - animation.startTime) / animation.duration * numSteps) + 1;
+			animation.currentStep = Math.min(nextStep, numSteps);
+
+			helpers$1.callback(animation.render, [chart, animation], chart);
+			helpers$1.callback(animation.onAnimationProgress, [animation], chart);
+
+			if (animation.currentStep >= numSteps) {
+				helpers$1.callback(animation.onAnimationComplete, [animation], chart);
+				chart.animating = false;
+				animations.splice(i, 1);
+			} else {
+				++i;
+			}
+		}
+	}
+};
+
+var resolve = helpers$1.options.resolve;
+
+var arrayEvents = [''push'', ''pop'', ''shift'', ''splice'', ''unshift''];
+
+/**
+ * Hooks the array methods that add or remove values (''push'', pop'', ''shift'', ''splice'',
+ * ''unshift'') and notify the listener AFTER the array has been altered. Listeners are
+ * called on the ''onData*'' callbacks (e.g. onDataPush, etc.) with same arguments.
+ */
+function listenArrayEvents(array, listener) {
+	if (array._chartjs) {
+		array._chartjs.listeners.push(listener);
+		return;
+	}
+
+	Object.defineProperty(array, ''_chartjs'', {
+		configurable: true,
+		enumerable: false,
+		value: {
+			listeners: [listener]
+		}
+	});
+
+	arrayEvents.forEach(function(key) {
+		var method = ''onData'' + key.charAt(0).toUpperCase() + key.slice(1);
+		var base = array[key];
+
+		Object.defineProperty(array, key, {
+			configurable: true,
+			enumerable: false,
+			value: function() {
+				var args = Array.prototype.slice.call(arguments);
+				var res = base.apply(this, args);
+
+				helpers$1.each(array._chartjs.listeners, function(object) {
+					if (typeof object[method] === ''function'') {
+						object[method].apply(object, args);
+					}
+				});
+
+				return res;
+			}
+		});
+	});
+}
+
+/**
+ * Removes the given array event listener and cleanup extra attached properties (such as
+ * the _chartjs stub and overridden methods) if array doesn''t have any more listeners.
+ */
+function unlistenArrayEvents(array, listener) {
+	var stub = array._chartjs;
+	if (!stub) {
+		return;
+	}
+
+	var listeners = stub.listeners;
+	var index = listeners.indexOf(listener);
+	if (index !== -1) {
+		listeners.splice(index, 1);
+	}
+
+	if (listeners.length > 0) {
+		return;
+	}
+
+	arrayEvents.forEach(function(key) {
+		delete array[key];
+	});
+
+	delete array._chartjs;
+}
+
+// Base class for all dataset controllers (line, bar, etc)
+var DatasetController = function(chart, datasetIndex) {
+	this.initialize(chart, datasetIndex);
+};
+
+helpers$1.extend(DatasetController.prototype, {
+
+	/**
+	 * Element type used to generate a meta dataset (e.g. Chart.element.Line).
+	 * @type {Chart.core.element}
+	 */
+	datasetElementType: null,
+
+	/**
+	 * Element type used to generate a meta data (e.g. Chart.element.Point).
+	 * @type {Chart.core.element}
+	 */
+	dataElementType: null,
+
+	initialize: function(chart, datasetIndex) {
+		var me = this;
+		me.chart = chart;
+		me.index = datasetIndex;
+		me.linkScales();
+		me.addElements();
+	},
+
+	updateIndex: function(datasetIndex) {
+		this.index = datasetIndex;
+	},
+
+	linkScales: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var dataset = me.getDataset();
+
+		if (meta.xAxisID === null || !(meta.xAxisID in me.chart.scales)) {
+			meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
+		}
+		if (meta.yAxisID === null || !(meta.yAxisID in me.chart.scales)) {
+			meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
+		}
+	},
+
+	getDataset: function() {
+		return this.chart.data.datasets[this.index];
+	},
+
+	getMeta: function() {
+		return this.chart.getDatasetMeta(this.index);
+	},
+
+	getScaleForId: function(scaleID) {
+		return this.chart.scales[scaleID];
+	},
+
+	/**
+	 * @private
+	 */
+	_getValueScaleId: function() {
+		return this.getMeta().yAxisID;
+	},
+
+	/**
+	 * @private
+	 */
+	_getIndexScaleId: function() {
+		return this.getMeta().xAxisID;
+	},
+
+	/**
+	 * @private
+	 */
+	_getValueScale: function() {
+		return this.getScaleForId(this._getValueScaleId());
+	},
+
+	/**
+	 * @private
+	 */
+	_getIndexScale: function() {
+		return this.getScaleForId(this._getIndexScaleId());
+	},
+
+	reset: function() {
+		this.update(true);
+	},
+
+	/**
+	 * @private
+	 */
+	destroy: function() {
+		if (this._data) {
+			unlistenArrayEvents(this._data, this);
+		}
+	},
+
+	createMetaDataset: function() {
+		var me = this;
+		var type = me.datasetElementType;
+		return type && new type({
+			_chart: me.chart,
+			_datasetIndex: me.index
+		});
+	},
+
+	createMetaData: function(index) {
+		var me = this;
+		var type = me.dataElementType;
+		return type && new type({
+			_chart: me.chart,
+			_datasetIndex: me.index,
+			_index: index
+		});
+	},
+
+	addElements: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var data = me.getDataset().data || [];
+		var metaData = meta.data;
+		var i, ilen;
+
+		for (i = 0, ilen = data.length; i < ilen; ++i) {
+			metaData[i] = metaData[i] || me.createMetaData(i);
+		}
+
+		meta.dataset = meta.dataset || me.createMetaDataset();
+	},
+
+	addElementAndReset: function(index) {
+		var element = this.createMetaData(index);
+		this.getMeta().data.splice(index, 0, element);
+		this.updateElement(element, index, true);
+	},
+
+	buildOrUpdateElements: function() {
+		var me = this;
+		var dataset = me.getDataset();
+		var data = dataset.data || (dataset.data = []);
+
+		// In order to correctly handle data addition/deletion animation (an thus simulate
+		// real-time charts), we need to monitor these data modifications and synchronize
+		// the internal meta data accordingly.
+		if (me._data !== data) {
+			if (me._data) {
+				// This case happens when the user replaced the data array instance.
+				unlistenArrayEvents(me._data, me);
+			}
+
+			if (data && Object.isExtensible(data)) {
+				listenArrayEvents(data, me);
+			}
+			me._data = data;
+		}
+
+		// Re-sync meta data in case the user replaced the data array or if we missed
+		// any updates and so make sure that we handle number of datapoints changing.
+		me.resyncElements();
+	},
+
+	update: helpers$1.noop,
+
+	transition: function(easingValue) {
+		var meta = this.getMeta();
+		var elements = meta.data || [];
+		var ilen = elements.length;
+		var i = 0;
+
+		for (; i < ilen; ++i) {
+			elements[i].transition(easingValue);
+		}
+
+		if (meta.dataset) {
+			meta.dataset.transition(easingValue);
+		}
+	},
+
+	draw: function() {
+		var meta = this.getMeta();
+		var elements = meta.data || [];
+		var ilen = elements.length;
+		var i = 0;
+
+		if (meta.dataset) {
+			meta.dataset.draw();
+		}
+
+		for (; i < ilen; ++i) {
+			elements[i].draw();
+		}
+	},
+
+	removeHoverStyle: function(element) {
+		helpers$1.merge(element._model, element.$previousStyle || {});
+		delete element.$previousStyle;
+	},
+
+	setHoverStyle: function(element) {
+		var dataset = this.chart.data.datasets[element._datasetIndex];
+		var index = element._index;
+		var custom = element.custom || {};
+		var model = element._model;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		element.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth
+		};
+
+		model.backgroundColor = resolve([custom.hoverBackgroundColor, dataset.hoverBackgroundColor, getHoverColor(model.backgroundColor)], undefined, index);
+		model.borderColor = resolve([custom.hoverBorderColor, dataset.hoverBorderColor, getHoverColor(model.borderColor)], undefined, index);
+		model.borderWidth = resolve([custom.hoverBorderWidth, dataset.hoverBorderWidth, model.borderWidth], undefined, index);
+	},
+
+	/**
+	 * @private
+	 */
+	resyncElements: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var data = me.getDataset().data;
+		var numMeta = meta.data.length;
+		var numData = data.length;
+
+		if (numData < numMeta) {
+			meta.data.splice(numData, numMeta - numData);
+		} else if (numData > numMeta) {
+			me.insertElements(numMeta, numData - numMeta);
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	insertElements: function(start, count) {
+		for (var i = 0; i < count; ++i) {
+			this.addElementAndReset(start + i);
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	onDataPush: function() {
+		var count = arguments.length;
+		this.insertElements(this.getDataset().data.length - count, count);
+	},
+
+	/**
+	 * @private
+	 */
+	onDataPop: function() {
+		this.getMeta().data.pop();
+	},
+
+	/**
+	 * @private
+	 */
+	onDataShift: function() {
+		this.getMeta().data.shift();
+	},
+
+	/**
+	 * @private
+	 */
+	onDataSplice: function(start, count) {
+		this.getMeta().data.splice(start, count);
+		this.insertElements(start, arguments.length - 2);
+	},
+
+	/**
+	 * @private
+	 */
+	onDataUnshift: function() {
+		this.insertElements(0, arguments.length);
+	}
+});
+
+DatasetController.extend = helpers$1.inherits;
+
+var core_datasetController = DatasetController;
+
+core_defaults._set(''global'', {
+	elements: {
+		arc: {
+			backgroundColor: core_defaults.global.defaultColor,
+			borderColor: ''#fff'',
+			borderWidth: 2,
+			borderAlign: ''center''
+		}
+	}
+});
+
+var element_arc = core_element.extend({
+	inLabelRange: function(mouseX) {
+		var vm = this._view;
+
+		if (vm) {
+			return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
+		}
+		return false;
+	},
+
+	inRange: function(chartX, chartY) {
+		var vm = this._view;
+
+		if (vm) {
+			var pointRelativePosition = helpers$1.getAngleFromPoint(vm, {x: chartX, y: chartY});
+			var	angle = pointRelativePosition.angle;
+			var distance = pointRelativePosition.distance;
+
+			// Sanitise angle range
+			var startAngle = vm.startAngle;
+			var endAngle = vm.endAngle;
+			while (endAngle < startAngle) {
+				endAngle += 2.0 * Math.PI;
+			}
+			while (angle > endAngle) {
+				angle -= 2.0 * Math.PI;
+			}
+			while (angle < startAngle) {
+				angle += 2.0 * Math.PI;
+			}
+
+			// Check if within the range of the open/close angle
+			var betweenAngles = (angle >= startAngle && angle <= endAngle);
+			var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);
+
+			return (betweenAngles && withinRadius);
+		}
+		return false;
+	},
+
+	getCenterPoint: function() {
+		var vm = this._view;
+		var halfAngle = (vm.startAngle + vm.endAngle) / 2;
+		var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
+		return {
+			x: vm.x + Math.cos(halfAngle) * halfRadius,
+			y: vm.y + Math.sin(halfAngle) * halfRadius
+		};
+	},
+
+	getArea: function() {
+		var vm = this._view;
+		return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
+	},
+
+	tooltipPosition: function() {
+		var vm = this._view;
+		var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
+		var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
+
+		return {
+			x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
+			y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
+		};
+	},
+
+	draw: function() {
+		var ctx = this._chart.ctx;
+		var vm = this._view;
+		var sA = vm.startAngle;
+		var eA = vm.endAngle;
+		var pixelMargin = (vm.borderAlign === ''inner'') ? 0.33 : 0;
+		var angleMargin;
+
+		ctx.save();
+
+		ctx.beginPath();
+		ctx.arc(vm.x, vm.y, Math.max(vm.outerRadius - pixelMargin, 0), sA, eA);
+		ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);
+		ctx.closePath();
+
+		ctx.fillStyle = vm.backgroundColor;
+		ctx.fill();
+
+		if (vm.borderWidth) {
+			if (vm.borderAlign === ''inner'') {
+				// Draw an inner border by cliping the arc and drawing a double-width border
+				// Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders
+				ctx.beginPath();
+				angleMargin = pixelMargin / vm.outerRadius;
+				ctx.arc(vm.x, vm.y, vm.outerRadius, sA - angleMargin, eA + angleMargin);
+				if (vm.innerRadius > pixelMargin) {
+					angleMargin = pixelMargin / vm.innerRadius;
+					ctx.arc(vm.x, vm.y, vm.innerRadius - pixelMargin, eA + angleMargin, sA - angleMargin, true);
+				} else {
+					ctx.arc(vm.x, vm.y, pixelMargin, eA + Math.PI / 2, sA - Math.PI / 2);
+				}
+				ctx.closePath();
+				ctx.clip();
+
+				ctx.beginPath();
+				ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
+				ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);
+				ctx.closePath();
+
+				ctx.lineWidth = vm.borderWidth * 2;
+				ctx.lineJoin = ''round'';
+			} else {
+				ctx.lineWidth = vm.borderWidth;
+				ctx.lineJoin = ''bevel'';
+			}
+
+			ctx.strokeStyle = vm.borderColor;
+			ctx.stroke();
+		}
+
+		ctx.restore();
+	}
+});
+
+var valueOrDefault$1 = helpers$1.valueOrDefault;
+
+var defaultColor = core_defaults.global.defaultColor;
+
+core_defaults._set(''global'', {
+	elements: {
+		line: {
+			tension: 0.4,
+			backgroundColor: defaultColor,
+			borderWidth: 3,
+			borderColor: defaultColor,
+			borderCapStyle: ''butt'',
+			borderDash: [],
+			borderDashOffset: 0.0,
+			borderJoinStyle: ''miter'',
+			capBezierPoints: true,
+			fill: true, // do we fill in the area between the line and its base axis
+		}
+	}
+});
+
+var element_line = core_element.extend({
+	draw: function() {
+		var me = this;
+		var vm = me._view;
+		var ctx = me._chart.ctx;
+		var spanGaps = vm.spanGaps;
+		var points = me._children.slice(); // clone array
+		var globalDefaults = core_defaults.global;
+		var globalOptionLineElements = globalDefaults.elements.line;
+		var lastDrawnIndex = -1;
+		var index, current, previous, currentVM;
+
+		// If we are looping, adding the first point again
+		if (me._loop && points.length) {
+			points.push(points[0]);
+		}
+
+		ctx.save();
+
+		// Stroke Line Options
+		ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;
+
+		// IE 9 and 10 do not support line dash
+		if (ctx.setLineDash) {
+			ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
+		}
+
+		ctx.lineDashOffset = valueOrDefault$1(vm.borderDashOffset, globalOptionLineElements.borderDashOffset);
+		ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
+		ctx.lineWidth = valueOrDefault$1(vm.borderWidth, globalOptionLineElements.borderWidth);
+		ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;
+
+		// Stroke Line
+		ctx.beginPath();
+		lastDrawnIndex = -1;
+
+		for (index = 0; index < points.length; ++index) {
+			current = points[index];
+			previous = helpers$1.previousItem(points, index);
+			currentVM = current._view;
+
+			// First point moves to it''s starting position no matter what
+			if (index === 0) {
+				if (!currentVM.skip) {
+					ctx.moveTo(currentVM.x, currentVM.y);
+					lastDrawnIndex = index;
+				}
+			} else {
+				previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];
+
+				if (!currentVM.skip) {
+					if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
+						// There was a gap and this is the first point after the gap
+						ctx.moveTo(currentVM.x, currentVM.y);
+					} else {
+						// Line to next point
+						helpers$1.canvas.lineTo(ctx, previous._view, current._view);
+					}
+					lastDrawnIndex = index;
+				}
+			}
+		}
+
+		ctx.stroke();
+		ctx.restore();
+	}
+});
+
+var valueOrDefault$2 = helpers$1.valueOrDefault;
+
+var defaultColor$1 = core_defaults.global.defaultColor;
+
+core_defaults._set(''global'', {
+	elements: {
+		point: {
+			radius: 3,
+			pointStyle: ''circle'',
+			backgroundColor: defaultColor$1,
+			borderColor: defaultColor$1,
+			borderWidth: 1,
+			// Hover
+			hitRadius: 1,
+			hoverRadius: 4,
+			hoverBorderWidth: 1
+		}
+	}
+});
+
+function xRange(mouseX) {
+	var vm = this._view;
+	return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;
+}
+
+function yRange(mouseY) {
+	var vm = this._view;
+	return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;
+}
+
+var element_point = core_element.extend({
+	inRange: function(mouseX, mouseY) {
+		var vm = this._view;
+		return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
+	},
+
+	inLabelRange: xRange,
+	inXRange: xRange,
+	inYRange: yRange,
+
+	getCenterPoint: function() {
+		var vm = this._view;
+		return {
+			x: vm.x,
+			y: vm.y
+		};
+	},
+
+	getArea: function() {
+		return Math.PI * Math.pow(this._view.radius, 2);
+	},
+
+	tooltipPosition: function() {
+		var vm = this._view;
+		return {
+			x: vm.x,
+			y: vm.y,
+			padding: vm.radius + vm.borderWidth
+		};
+	},
+
+	draw: function(chartArea) {
+		var vm = this._view;
+		var ctx = this._chart.ctx;
+		var pointStyle = vm.pointStyle;
+		var rotation = vm.rotation;
+		var radius = vm.radius;
+		var x = vm.x;
+		var y = vm.y;
+		var globalDefaults = core_defaults.global;
+		var defaultColor = globalDefaults.defaultColor; // eslint-disable-line no-shadow
+
+		if (vm.skip) {
+			return;
+		}
+
+		// Clipping for Points.
+		if (chartArea === undefined || helpers$1.canvas._isPointInArea(vm, chartArea)) {
+			ctx.strokeStyle = vm.borderColor || defaultColor;
+			ctx.lineWidth = valueOrDefault$2(vm.borderWidth, globalDefaults.elements.point.borderWidth);
+			ctx.fillStyle = vm.backgroundColor || defaultColor;
+			helpers$1.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation);
+		}
+	}
+});
+
+var defaultColor$2 = core_defaults.global.defaultColor;
+
+core_defaults._set(''global'', {
+	elements: {
+		rectangle: {
+			backgroundColor: defaultColor$2,
+			borderColor: defaultColor$2,
+			borderSkipped: ''bottom'',
+			borderWidth: 0
+		}
+	}
+});
+
+function isVertical(vm) {
+	return vm && vm.width !== undefined;
+}
+
+/**
+ * Helper function to get the bounds of the bar regardless of the orientation
+ * @param bar {Chart.Element.Rectangle} the bar
+ * @return {Bounds} bounds of the bar
+ * @private
+ */
+function getBarBounds(vm) {
+	var x1, x2, y1, y2, half;
+
+	if (isVertical(vm)) {
+		half = vm.width / 2;
+		x1 = vm.x - half;
+		x2 = vm.x + half;
+		y1 = Math.min(vm.y, vm.base);
+		y2 = Math.max(vm.y, vm.base);
+	} else {
+		half = vm.height / 2;
+		x1 = Math.min(vm.x, vm.base);
+		x2 = Math.max(vm.x, vm.base);
+		y1 = vm.y - half;
+		y2 = vm.y + half;
+	}
+
+	return {
+		left: x1,
+		top: y1,
+		right: x2,
+		bottom: y2
+	};
+}
+
+function swap(orig, v1, v2) {
+	return orig === v1 ? v2 : orig === v2 ? v1 : orig;
+}
+
+function parseBorderSkipped(vm) {
+	var edge = vm.borderSkipped;
+	var res = {};
+
+	if (!edge) {
+		return res;
+	}
+
+	if (vm.horizontal) {
+		if (vm.base > vm.x) {
+			edge = swap(edge, ''left'', ''right'');
+		}
+	} else if (vm.base < vm.y) {
+		edge = swap(edge, ''bottom'', ''top'');
+	}
+
+	res[edge] = true;
+	return res;
+}
+
+function parseBorderWidth(vm, maxW, maxH) {
+	var value = vm.borderWidth;
+	var skip = parseBorderSkipped(vm);
+	var t, r, b, l;
+
+	if (helpers$1.isObject(value)) {
+		t = +value.top || 0;
+		r = +value.right || 0;
+		b = +value.bottom || 0;
+		l = +value.left || 0;
+	} else {
+		t = r = b = l = +value || 0;
+	}
+
+	return {
+		t: skip.top || (t < 0) ? 0 : t > maxH ? maxH : t,
+		r: skip.right || (r < 0) ? 0 : r > maxW ? maxW : r,
+		b: skip.bottom || (b < 0) ? 0 : b > maxH ? maxH : b,
+		l: skip.left || (l < 0) ? 0 : l > maxW ? maxW : l
+	};
+}
+
+function boundingRects(vm) {
+	var bounds = getBarBounds(vm);
+	var width = bounds.right - bounds.left;
+	var height = bounds.bottom - bounds.top;
+	var border = parseBorderWidth(vm, width / 2, height / 2);
+
+	return {
+		outer: {
+			x: bounds.left,
+			y: bounds.top,
+			w: width,
+			h: height
+		},
+		inner: {
+			x: bounds.left + border.l,
+			y: bounds.top + border.t,
+			w: width - border.l - border.r,
+			h: height - border.t - border.b
+		}
+	};
+}
+
+function inRange(vm, x, y) {
+	var skipX = x === null;
+	var skipY = y === null;
+	var bounds = !vm || (skipX && skipY) ? false : getBarBounds(vm);
+
+	return bounds
+		&& (skipX || x >= bounds.left && x <= bounds.right)
+		&& (skipY || y >= bounds.top && y <= bounds.bottom);
+}
+
+var element_rectangle = core_element.extend({
+	draw: function() {
+		var ctx = this._chart.ctx;
+		var vm = this._view;
+		var rects = boundingRects(vm);
+		var outer = rects.outer;
+		var inner = rects.inner;
+
+		ctx.fillStyle = vm.backgroundColor;
+		ctx.fillRect(outer.x, outer.y, outer.w, outer.h);
+
+		if (outer.w === inner.w && outer.h === inner.h) {
+			return;
+		}
+
+		ctx.save();
+		ctx.beginPath();
+		ctx.rect(outer.x, outer.y, outer.w, outer.h);
+		ctx.clip();
+		ctx.fillStyle = vm.borderColor;
+		ctx.rect(inner.x, inner.y, inner.w, inner.h);
+		ctx.fill(''evenodd'');
+		ctx.restore();
+	},
+
+	height: function() {
+		var vm = this._view;
+		return vm.base - vm.y;
+	},
+
+	inRange: function(mouseX, mouseY) {
+		return inRange(this._view, mouseX, mouseY);
+	},
+
+	inLabelRange: function(mouseX, mouseY) {
+		var vm = this._view;
+		return isVertical(vm)
+			? inRange(vm, mouseX, null)
+			: inRange(vm, null, mouseY);
+	},
+
+	inXRange: function(mouseX) {
+		return inRange(this._view, mouseX, null);
+	},
+
+	inYRange: function(mouseY) {
+		return inRange(this._view, null, mouseY);
+	},
+
+	getCenterPoint: function() {
+		var vm = this._view;
+		var x, y;
+		if (isVertical(vm)) {
+			x = vm.x;
+			y = (vm.y + vm.base) / 2;
+		} else {
+			x = (vm.x + vm.base) / 2;
+			y = vm.y;
+		}
+
+		return {x: x, y: y};
+	},
+
+	getArea: function() {
+		var vm = this._view;
+
+		return isVertical(vm)
+			? vm.width * Math.abs(vm.y - vm.base)
+			: vm.height * Math.abs(vm.x - vm.base);
+	},
+
+	tooltipPosition: function() {
+		var vm = this._view;
+		return {
+			x: vm.x,
+			y: vm.y
+		};
+	}
+});
+
+var elements = {};
+var Arc = element_arc;
+var Line = element_line;
+var Point = element_point;
+var Rectangle = element_rectangle;
+elements.Arc = Arc;
+elements.Line = Line;
+elements.Point = Point;
+elements.Rectangle = Rectangle;
+
+var resolve$1 = helpers$1.options.resolve;
+
+core_defaults._set(''bar'', {
+	hover: {
+		mode: ''label''
+	},
+
+	scales: {
+		xAxes: [{
+			type: ''category'',
+			categoryPercentage: 0.8,
+			barPercentage: 0.9,
+			offset: true,
+			gridLines: {
+				offsetGridLines: true
+			}
+		}],
+
+		yAxes: [{
+			type: ''linear''
+		}]
+	}
+});
+
+/**
+ * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap.
+ * @private
+ */
+function computeMinSampleSize(scale, pixels) {
+	var min = scale.isHorizontal() ? scale.width : scale.height;
+	var ticks = scale.getTicks();
+	var prev, curr, i, ilen;
+
+	for (i = 1, ilen = pixels.length; i < ilen; ++i) {
+		min = Math.min(min, Math.abs(pixels[i] - pixels[i - 1]));
+	}
+
+	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
+		curr = scale.getPixelForTick(i);
+		min = i > 0 ? Math.min(min, curr - prev) : min;
+		prev = curr;
+	}
+
+	return min;
+}
+
+/**
+ * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null,
+ * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This
+ * mode currently always generates bars equally sized (until we introduce scriptable options?).
+ * @private
+ */
+function computeFitCategoryTraits(index, ruler, options) {
+	var thickness = options.barThickness;
+	var count = ruler.stackCount;
+	var curr = ruler.pixels[index];
+	var size, ratio;
+
+	if (helpers$1.isNullOrUndef(thickness)) {
+		size = ruler.min * options.categoryPercentage;
+		ratio = options.barPercentage;
+	} else {
+		// When bar thickness is enforced, category and bar percentages are ignored.
+		// Note(SB): we could add support for relative bar thickness (e.g. barThickness: ''50%'')
+		// and deprecate barPercentage since this value is ignored when thickness is absolute.
+		size = thickness * count;
+		ratio = 1;
+	}
+
+	return {
+		chunk: size / count,
+		ratio: ratio,
+		start: curr - (size / 2)
+	};
+}
+
+/**
+ * Computes an "optimal" category that globally arranges bars side by side (no gap when
+ * percentage options are 1), based on the previous and following categories. This mode
+ * generates bars with different widths when data are not evenly spaced.
+ * @private
+ */
+function computeFlexCategoryTraits(index, ruler, options) {
+	var pixels = ruler.pixels;
+	var curr = pixels[index];
+	var prev = index > 0 ? pixels[index - 1] : null;
+	var next = index < pixels.length - 1 ? pixels[index + 1] : null;
+	var percent = options.categoryPercentage;
+	var start, size;
+
+	if (prev === null) {
+		// first data: its size is double based on the next point or,
+		// if it''s also the last data, we use the scale size.
+		prev = curr - (next === null ? ruler.end - ruler.start : next - curr);
+	}
+
+	if (next === null) {
+		// last data: its size is also double based on the previous point.
+		next = curr + curr - prev;
+	}
+
+	start = curr - (curr - Math.min(prev, next)) / 2 * percent;
+	size = Math.abs(next - prev) / 2 * percent;
+
+	return {
+		chunk: size / ruler.stackCount,
+		ratio: options.barPercentage,
+		start: start
+	};
+}
+
+var controller_bar = core_datasetController.extend({
+
+	dataElementType: elements.Rectangle,
+
+	initialize: function() {
+		var me = this;
+		var meta;
+
+		core_datasetController.prototype.initialize.apply(me, arguments);
+
+		meta = me.getMeta();
+		meta.stack = me.getDataset().stack;
+		meta.bar = true;
+	},
+
+	update: function(reset) {
+		var me = this;
+		var rects = me.getMeta().data;
+		var i, ilen;
+
+		me._ruler = me.getRuler();
+
+		for (i = 0, ilen = rects.length; i < ilen; ++i) {
+			me.updateElement(rects[i], i, reset);
+		}
+	},
+
+	updateElement: function(rectangle, index, reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var dataset = me.getDataset();
+		var options = me._resolveElementOptions(rectangle, index);
+
+		rectangle._xScale = me.getScaleForId(meta.xAxisID);
+		rectangle._yScale = me.getScaleForId(meta.yAxisID);
+		rectangle._datasetIndex = me.index;
+		rectangle._index = index;
+		rectangle._model = {
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderSkipped: options.borderSkipped,
+			borderWidth: options.borderWidth,
+			datasetLabel: dataset.label,
+			label: me.chart.data.labels[index]
+		};
+
+		me._updateElementGeometry(rectangle, index, reset);
+
+		rectangle.pivot();
+	},
+
+	/**
+	 * @private
+	 */
+	_updateElementGeometry: function(rectangle, index, reset) {
+		var me = this;
+		var model = rectangle._model;
+		var vscale = me._getValueScale();
+		var base = vscale.getBasePixel();
+		var horizontal = vscale.isHorizontal();
+		var ruler = me._ruler || me.getRuler();
+		var vpixels = me.calculateBarValuePixels(me.index, index);
+		var ipixels = me.calculateBarIndexPixels(me.index, index, ruler);
+
+		model.horizontal = horizontal;
+		model.base = reset ? base : vpixels.base;
+		model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
+		model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
+		model.height = horizontal ? ipixels.size : undefined;
+		model.width = horizontal ? undefined : ipixels.size;
+	},
+
+	/**
+	 * Returns the stacks based on groups and bar visibility.
+	 * @param {number} [last] - The dataset index
+	 * @returns {string[]} The list of stack IDs
+	 * @private
+	 */
+	_getStacks: function(last) {
+		var me = this;
+		var chart = me.chart;
+		var scale = me._getIndexScale();
+		var stacked = scale.options.stacked;
+		var ilen = last === undefined ? chart.data.datasets.length : last + 1;
+		var stacks = [];
+		var i, meta;
+
+		for (i = 0; i < ilen; ++i) {
+			meta = chart.getDatasetMeta(i);
+			if (meta.bar && chart.isDatasetVisible(i) &&
+				(stacked === false ||
+				(stacked === true && stacks.indexOf(meta.stack) === -1) ||
+				(stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) {
+				stacks.push(meta.stack);
+			}
+		}
+
+		return stacks;
+	},
+
+	/**
+	 * Returns the effective number of stacks based on groups and bar visibility.
+	 * @private
+	 */
+	getStackCount: function() {
+		return this._getStacks().length;
+	},
+
+	/**
+	 * Returns the stack index for the given dataset based on groups and bar visibility.
+	 * @param {number} [datasetIndex] - The dataset index
+	 * @param {string} [name] - The stack name to find
+	 * @returns {number} The stack index
+	 * @private
+	 */
+	getStackIndex: function(datasetIndex, name) {
+		var stacks = this._getStacks(datasetIndex);
+		var index = (name !== undefined)
+			? stacks.indexOf(name)
+			: -1; // indexOf returns -1 if element is not present
+
+		return (index === -1)
+			? stacks.length - 1
+			: index;
+	},
+
+	/**
+	 * @private
+	 */
+	getRuler: function() {
+		var me = this;
+		var scale = me._getIndexScale();
+		var stackCount = me.getStackCount();
+		var datasetIndex = me.index;
+		var isHorizontal = scale.isHorizontal();
+		var start = isHorizontal ? scale.left : scale.top;
+		var end = start + (isHorizontal ? scale.width : scale.height);
+		var pixels = [];
+		var i, ilen, min;
+
+		for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
+			pixels.push(scale.getPixelForValue(null, i, datasetIndex));
+		}
+
+		min = helpers$1.isNullOrUndef(scale.options.barThickness)
+			? computeMinSampleSize(scale, pixels)
+			: -1;
+
+		return {
+			min: min,
+			pixels: pixels,
+			start: start,
+			end: end,
+			stackCount: stackCount,
+			scale: scale
+		};
+	},
+
+	/**
+	 * Note: pixel values are not clamped to the scale area.
+	 * @private
+	 */
+	calculateBarValuePixels: function(datasetIndex, index) {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var scale = me._getValueScale();
+		var isHorizontal = scale.isHorizontal();
+		var datasets = chart.data.datasets;
+		var value = +scale.getRightValue(datasets[datasetIndex].data[index]);
+		var minBarLength = scale.options.minBarLength;
+		var stacked = scale.options.stacked;
+		var stack = meta.stack;
+		var start = 0;
+		var i, imeta, ivalue, base, head, size;
+
+		if (stacked || (stacked === undefined && stack !== undefined)) {
+			for (i = 0; i < datasetIndex; ++i) {
+				imeta = chart.getDatasetMeta(i);
+
+				if (imeta.bar &&
+					imeta.stack === stack &&
+					imeta.controller._getValueScaleId() === scale.id &&
+					chart.isDatasetVisible(i)) {
+
+					ivalue = +scale.getRightValue(datasets[i].data[index]);
+					if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) {
+						start += ivalue;
+					}
+				}
+			}
+		}
+
+		base = scale.getPixelForValue(start);
+		head = scale.getPixelForValue(start + value);
+		size = head - base;
+
+		if (minBarLength !== undefined && Math.abs(size) < minBarLength) {
+			size = minBarLength;
+			if (value >= 0 && !isHorizontal || value < 0 && isHorizontal) {
+				head = base - minBarLength;
+			} else {
+				head = base + minBarLength;
+			}
+		}
+
+		return {
+			size: size,
+			base: base,
+			head: head,
+			center: head + size / 2
+		};
+	},
+
+	/**
+	 * @private
+	 */
+	calculateBarIndexPixels: function(datasetIndex, index, ruler) {
+		var me = this;
+		var options = ruler.scale.options;
+		var range = options.barThickness === ''flex''
+			? computeFlexCategoryTraits(index, ruler, options)
+			: computeFitCategoryTraits(index, ruler, options);
+
+		var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);
+		var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
+		var size = Math.min(
+			helpers$1.valueOrDefault(options.maxBarThickness, Infinity),
+			range.chunk * range.ratio);
+
+		return {
+			base: center - size / 2,
+			head: center + size / 2,
+			center: center,
+			size: size
+		};
+	},
+
+	draw: function() {
+		var me = this;
+		var chart = me.chart;
+		var scale = me._getValueScale();
+		var rects = me.getMeta().data;
+		var dataset = me.getDataset();
+		var ilen = rects.length;
+		var i = 0;
+
+		helpers$1.canvas.clipArea(chart.ctx, chart.chartArea);
+
+		for (; i < ilen; ++i) {
+			if (!isNaN(scale.getRightValue(dataset.data[i]))) {
+				rects[i].draw();
+			}
+		}
+
+		helpers$1.canvas.unclipArea(chart.ctx);
+	},
+
+	/**
+	 * @private
+	 */
+	_resolveElementOptions: function(rectangle, index) {
+		var me = this;
+		var chart = me.chart;
+		var datasets = chart.data.datasets;
+		var dataset = datasets[me.index];
+		var custom = rectangle.custom || {};
+		var options = chart.options.elements.rectangle;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		var keys = [
+			''backgroundColor'',
+			''borderColor'',
+			''borderSkipped'',
+			''borderWidth''
+		];
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$1([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
+
+		return values;
+	}
+});
+
+var valueOrDefault$3 = helpers$1.valueOrDefault;
+var resolve$2 = helpers$1.options.resolve;
+
+core_defaults._set(''bubble'', {
+	hover: {
+		mode: ''single''
+	},
+
+	scales: {
+		xAxes: [{
+			type: ''linear'', // bubble should probably use a linear scale by default
+			position: ''bottom'',
+			id: ''x-axis-0'' // need an ID so datasets can reference the scale
+		}],
+		yAxes: [{
+			type: ''linear'',
+			position: ''left'',
+			id: ''y-axis-0''
+		}]
+	},
+
+	tooltips: {
+		callbacks: {
+			title: function() {
+				// Title doesn''t make sense for scatter since we format the data as a point
+				return '''';
 			},
-			easeInOutCirc: function (t) {
-				if ((t /= 1 / 2) < 1) return -1 / 2 * (Math.sqrt(1 - t * t) - 1);
-				return 1 / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1);
+			label: function(item, data) {
+				var datasetLabel = data.datasets[item.datasetIndex].label || '''';
+				var dataPoint = data.datasets[item.datasetIndex].data[item.index];
+				return datasetLabel + '': ('' + item.xLabel + '', '' + item.yLabel + '', '' + dataPoint.r + '')'';
+			}
+		}
+	}
+});
+
+var controller_bubble = core_datasetController.extend({
+	/**
+	 * @protected
+	 */
+	dataElementType: elements.Point,
+
+	/**
+	 * @protected
+	 */
+	update: function(reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var points = meta.data;
+
+		// Update Points
+		helpers$1.each(points, function(point, index) {
+			me.updateElement(point, index, reset);
+		});
+	},
+
+	/**
+	 * @protected
+	 */
+	updateElement: function(point, index, reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var custom = point.custom || {};
+		var xScale = me.getScaleForId(meta.xAxisID);
+		var yScale = me.getScaleForId(meta.yAxisID);
+		var options = me._resolveElementOptions(point, index);
+		var data = me.getDataset().data[index];
+		var dsIndex = me.index;
+
+		var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === ''object'' ? data : NaN, index, dsIndex);
+		var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);
+
+		point._xScale = xScale;
+		point._yScale = yScale;
+		point._options = options;
+		point._datasetIndex = dsIndex;
+		point._index = index;
+		point._model = {
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderWidth: options.borderWidth,
+			hitRadius: options.hitRadius,
+			pointStyle: options.pointStyle,
+			rotation: options.rotation,
+			radius: reset ? 0 : options.radius,
+			skip: custom.skip || isNaN(x) || isNaN(y),
+			x: x,
+			y: y,
+		};
+
+		point.pivot();
+	},
+
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(point) {
+		var model = point._model;
+		var options = point._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		point.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+			radius: model.radius
+		};
+
+		model.backgroundColor = valueOrDefault$3(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$3(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$3(options.hoverBorderWidth, options.borderWidth);
+		model.radius = options.radius + options.hoverRadius;
+	},
+
+	/**
+	 * @private
+	 */
+	_resolveElementOptions: function(point, index) {
+		var me = this;
+		var chart = me.chart;
+		var datasets = chart.data.datasets;
+		var dataset = datasets[me.index];
+		var custom = point.custom || {};
+		var options = chart.options.elements.point;
+		var data = dataset.data[index];
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		var keys = [
+			''backgroundColor'',
+			''borderColor'',
+			''borderWidth'',
+			''hoverBackgroundColor'',
+			''hoverBorderColor'',
+			''hoverBorderWidth'',
+			''hoverRadius'',
+			''hitRadius'',
+			''pointStyle'',
+			''rotation''
+		];
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$2([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
+
+		// Custom radius resolution
+		values.radius = resolve$2([
+			custom.radius,
+			data ? data.r : undefined,
+			dataset.radius,
+			options.radius
+		], context, index);
+
+		return values;
+	}
+});
+
+var resolve$3 = helpers$1.options.resolve;
+var valueOrDefault$4 = helpers$1.valueOrDefault;
+
+core_defaults._set(''doughnut'', {
+	animation: {
+		// Boolean - Whether we animate the rotation of the Doughnut
+		animateRotate: true,
+		// Boolean - Whether we animate scaling the Doughnut from the centre
+		animateScale: false
+	},
+	hover: {
+		mode: ''single''
+	},
+	legendCallback: function(chart) {
+		var text = [];
+		text.push(''<ul class="'' + chart.id + ''-legend">'');
+
+		var data = chart.data;
+		var datasets = data.datasets;
+		var labels = data.labels;
+
+		if (datasets.length) {
+			for (var i = 0; i < datasets[0].data.length; ++i) {
+				text.push(''<li><span style="background-color:'' + datasets[0].backgroundColor[i] + ''"></span>'');
+				if (labels[i]) {
+					text.push(labels[i]);
+				}
+				text.push(''</li>'');
+			}
+		}
+
+		text.push(''</ul>'');
+		return text.join('''');
+	},
+	legend: {
+		labels: {
+			generateLabels: function(chart) {
+				var data = chart.data;
+				if (data.labels.length && data.datasets.length) {
+					return data.labels.map(function(label, i) {
+						var meta = chart.getDatasetMeta(0);
+						var ds = data.datasets[0];
+						var arc = meta.data[i];
+						var custom = arc && arc.custom || {};
+						var arcOpts = chart.options.elements.arc;
+						var fill = resolve$3([custom.backgroundColor, ds.backgroundColor, arcOpts.backgroundColor], undefined, i);
+						var stroke = resolve$3([custom.borderColor, ds.borderColor, arcOpts.borderColor], undefined, i);
+						var bw = resolve$3([custom.borderWidth, ds.borderWidth, arcOpts.borderWidth], undefined, i);
+
+						return {
+							text: label,
+							fillStyle: fill,
+							strokeStyle: stroke,
+							lineWidth: bw,
+							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
+
+							// Extra data used for toggling the correct item
+							index: i
+						};
+					});
+				}
+				return [];
+			}
+		},
+
+		onClick: function(e, legendItem) {
+			var index = legendItem.index;
+			var chart = this.chart;
+			var i, ilen, meta;
+
+			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
+				meta = chart.getDatasetMeta(i);
+				// toggle visibility of index if exists
+				if (meta.data[index]) {
+					meta.data[index].hidden = !meta.data[index].hidden;
+				}
+			}
+
+			chart.update();
+		}
+	},
+
+	// The percentage of the chart that we cut out of the middle.
+	cutoutPercentage: 50,
+
+	// The rotation of the chart, where the first data arc begins.
+	rotation: Math.PI * -0.5,
+
+	// The total circumference of the chart.
+	circumference: Math.PI * 2.0,
+
+	// Need to override these to give a nice default
+	tooltips: {
+		callbacks: {
+			title: function() {
+				return '''';
 			},
-			easeInElastic: function (t) {
-				var s = 1.70158;
-				var p = 0;
-				var a = 1;
-				if (t === 0) return 0;
-				if ((t /= 1) == 1) return 1;
-				if (!p) p = 1 * 0.3;
-				if (a < Math.abs(1)) {
-					a = 1;
-					s = p / 4;
-				} else s = p / (2 * Math.PI) * Math.asin(1 / a);
-				return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p));
+			label: function(tooltipItem, data) {
+				var dataLabel = data.labels[tooltipItem.index];
+				var value = '': '' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
+
+				if (helpers$1.isArray(dataLabel)) {
+					// show value on first line of multiline label
+					// need to clone because we are changing the value
+					dataLabel = dataLabel.slice();
+					dataLabel[0] += value;
+				} else {
+					dataLabel += value;
+				}
+
+				return dataLabel;
+			}
+		}
+	}
+});
+
+var controller_doughnut = core_datasetController.extend({
+
+	dataElementType: elements.Arc,
+
+	linkScales: helpers$1.noop,
+
+	// Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
+	getRingIndex: function(datasetIndex) {
+		var ringIndex = 0;
+
+		for (var j = 0; j < datasetIndex; ++j) {
+			if (this.chart.isDatasetVisible(j)) {
+				++ringIndex;
+			}
+		}
+
+		return ringIndex;
+	},
+
+	update: function(reset) {
+		var me = this;
+		var chart = me.chart;
+		var chartArea = chart.chartArea;
+		var opts = chart.options;
+		var availableWidth = chartArea.right - chartArea.left;
+		var availableHeight = chartArea.bottom - chartArea.top;
+		var minSize = Math.min(availableWidth, availableHeight);
+		var offset = {x: 0, y: 0};
+		var meta = me.getMeta();
+		var arcs = meta.data;
+		var cutoutPercentage = opts.cutoutPercentage;
+		var circumference = opts.circumference;
+		var chartWeight = me._getRingWeight(me.index);
+		var i, ilen;
+
+		// If the chart''s circumference isn''t a full circle, calculate minSize as a ratio of the width/height of the arc
+		if (circumference < Math.PI * 2.0) {
+			var startAngle = opts.rotation % (Math.PI * 2.0);
+			startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
+			var endAngle = startAngle + circumference;
+			var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
+			var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
+			var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
+			var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
+			var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
+			var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
+			var cutout = cutoutPercentage / 100.0;
+			var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
+			var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
+			var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
+			minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
+			offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
+		}
+
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			arcs[i]._options = me._resolveElementOptions(arcs[i], i);
+		}
+
+		chart.borderWidth = me.getMaxBorderWidth();
+		chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
+		chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0);
+		chart.radiusLength = (chart.outerRadius - chart.innerRadius) / (me._getVisibleDatasetWeightTotal() || 1);
+		chart.offsetX = offset.x * chart.outerRadius;
+		chart.offsetY = offset.y * chart.outerRadius;
+
+		meta.total = me.calculateTotal();
+
+		me.outerRadius = chart.outerRadius - chart.radiusLength * me._getRingWeightOffset(me.index);
+		me.innerRadius = Math.max(me.outerRadius - chart.radiusLength * chartWeight, 0);
+
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			me.updateElement(arcs[i], i, reset);
+		}
+	},
+
+	updateElement: function(arc, index, reset) {
+		var me = this;
+		var chart = me.chart;
+		var chartArea = chart.chartArea;
+		var opts = chart.options;
+		var animationOpts = opts.animation;
+		var centerX = (chartArea.left + chartArea.right) / 2;
+		var centerY = (chartArea.top + chartArea.bottom) / 2;
+		var startAngle = opts.rotation; // non reset case handled later
+		var endAngle = opts.rotation; // non reset case handled later
+		var dataset = me.getDataset();
+		var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI));
+		var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
+		var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
+		var options = arc._options || {};
+
+		helpers$1.extend(arc, {
+			// Utility
+			_datasetIndex: me.index,
+			_index: index,
+
+			// Desired view properties
+			_model: {
+				backgroundColor: options.backgroundColor,
+				borderColor: options.borderColor,
+				borderWidth: options.borderWidth,
+				borderAlign: options.borderAlign,
+				x: centerX + chart.offsetX,
+				y: centerY + chart.offsetY,
+				startAngle: startAngle,
+				endAngle: endAngle,
+				circumference: circumference,
+				outerRadius: outerRadius,
+				innerRadius: innerRadius,
+				label: helpers$1.valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
+			}
+		});
+
+		var model = arc._model;
+
+		// Set correct angles if not resetting
+		if (!reset || !animationOpts.animateRotate) {
+			if (index === 0) {
+				model.startAngle = opts.rotation;
+			} else {
+				model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
+			}
+
+			model.endAngle = model.startAngle + model.circumference;
+		}
+
+		arc.pivot();
+	},
+
+	calculateTotal: function() {
+		var dataset = this.getDataset();
+		var meta = this.getMeta();
+		var total = 0;
+		var value;
+
+		helpers$1.each(meta.data, function(element, index) {
+			value = dataset.data[index];
+			if (!isNaN(value) && !element.hidden) {
+				total += Math.abs(value);
+			}
+		});
+
+		/* if (total === 0) {
+			total = NaN;
+		}*/
+
+		return total;
+	},
+
+	calculateCircumference: function(value) {
+		var total = this.getMeta().total;
+		if (total > 0 && !isNaN(value)) {
+			return (Math.PI * 2.0) * (Math.abs(value) / total);
+		}
+		return 0;
+	},
+
+	// gets the max border or hover width to properly scale pie charts
+	getMaxBorderWidth: function(arcs) {
+		var me = this;
+		var max = 0;
+		var chart = me.chart;
+		var i, ilen, meta, arc, controller, options, borderWidth, hoverWidth;
+
+		if (!arcs) {
+			// Find the outmost visible dataset
+			for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
+				if (chart.isDatasetVisible(i)) {
+					meta = chart.getDatasetMeta(i);
+					arcs = meta.data;
+					if (i !== me.index) {
+						controller = meta.controller;
+					}
+					break;
+				}
+			}
+		}
+
+		if (!arcs) {
+			return 0;
+		}
+
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			arc = arcs[i];
+			options = controller ? controller._resolveElementOptions(arc, i) : arc._options;
+			if (options.borderAlign !== ''inner'') {
+				borderWidth = options.borderWidth;
+				hoverWidth = options.hoverBorderWidth;
+
+				max = borderWidth > max ? borderWidth : max;
+				max = hoverWidth > max ? hoverWidth : max;
+			}
+		}
+		return max;
+	},
+
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(arc) {
+		var model = arc._model;
+		var options = arc._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		arc.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+		};
+
+		model.backgroundColor = valueOrDefault$4(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$4(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$4(options.hoverBorderWidth, options.borderWidth);
+	},
+
+	/**
+	 * @private
+	 */
+	_resolveElementOptions: function(arc, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = me.getDataset();
+		var custom = arc.custom || {};
+		var options = chart.options.elements.arc;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		var keys = [
+			''backgroundColor'',
+			''borderColor'',
+			''borderWidth'',
+			''borderAlign'',
+			''hoverBackgroundColor'',
+			''hoverBorderColor'',
+			''hoverBorderWidth'',
+		];
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$3([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
+
+		return values;
+	},
+
+	/**
+	 * Get radius length offset of the dataset in relation to the visible datasets weights. This allows determining the inner and outer radius correctly
+	 * @private
+	 */
+	_getRingWeightOffset: function(datasetIndex) {
+		var ringWeightOffset = 0;
+
+		for (var i = 0; i < datasetIndex; ++i) {
+			if (this.chart.isDatasetVisible(i)) {
+				ringWeightOffset += this._getRingWeight(i);
+			}
+		}
+
+		return ringWeightOffset;
+	},
+
+	/**
+	 * @private
+	 */
+	_getRingWeight: function(dataSetIndex) {
+		return Math.max(valueOrDefault$4(this.chart.data.datasets[dataSetIndex].weight, 1), 0);
+	},
+
+	/**
+	 * Returns the sum of all visibile data set weights.  This value can be 0.
+	 * @private
+	 */
+	_getVisibleDatasetWeightTotal: function() {
+		return this._getRingWeightOffset(this.chart.data.datasets.length);
+	}
+});
+
+core_defaults._set(''horizontalBar'', {
+	hover: {
+		mode: ''index'',
+		axis: ''y''
+	},
+
+	scales: {
+		xAxes: [{
+			type: ''linear'',
+			position: ''bottom''
+		}],
+
+		yAxes: [{
+			type: ''category'',
+			position: ''left'',
+			categoryPercentage: 0.8,
+			barPercentage: 0.9,
+			offset: true,
+			gridLines: {
+				offsetGridLines: true
+			}
+		}]
+	},
+
+	elements: {
+		rectangle: {
+			borderSkipped: ''left''
+		}
+	},
+
+	tooltips: {
+		mode: ''index'',
+		axis: ''y''
+	}
+});
+
+var controller_horizontalBar = controller_bar.extend({
+	/**
+	 * @private
+	 */
+	_getValueScaleId: function() {
+		return this.getMeta().xAxisID;
+	},
+
+	/**
+	 * @private
+	 */
+	_getIndexScaleId: function() {
+		return this.getMeta().yAxisID;
+	}
+});
+
+var valueOrDefault$5 = helpers$1.valueOrDefault;
+var resolve$4 = helpers$1.options.resolve;
+var isPointInArea = helpers$1.canvas._isPointInArea;
+
+core_defaults._set(''line'', {
+	showLines: true,
+	spanGaps: false,
+
+	hover: {
+		mode: ''label''
+	},
+
+	scales: {
+		xAxes: [{
+			type: ''category'',
+			id: ''x-axis-0''
+		}],
+		yAxes: [{
+			type: ''linear'',
+			id: ''y-axis-0''
+		}]
+	}
+});
+
+function lineEnabled(dataset, options) {
+	return valueOrDefault$5(dataset.showLine, options.showLines);
+}
+
+var controller_line = core_datasetController.extend({
+
+	datasetElementType: elements.Line,
+
+	dataElementType: elements.Point,
+
+	update: function(reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var line = meta.dataset;
+		var points = meta.data || [];
+		var scale = me.getScaleForId(meta.yAxisID);
+		var dataset = me.getDataset();
+		var showLine = lineEnabled(dataset, me.chart.options);
+		var i, ilen;
+
+		// Update Line
+		if (showLine) {
+			// Compatibility: If the properties are defined with only the old name, use those values
+			if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
+				dataset.lineTension = dataset.tension;
+			}
+
+			// Utility
+			line._scale = scale;
+			line._datasetIndex = me.index;
+			// Data
+			line._children = points;
+			// Model
+			line._model = me._resolveLineOptions(line);
+
+			line.pivot();
+		}
+
+		// Update Points
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			me.updateElement(points[i], i, reset);
+		}
+
+		if (showLine && line._model.tension !== 0) {
+			me.updateBezierControlPoints();
+		}
+
+		// Now pivot the point for animation
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			points[i].pivot();
+		}
+	},
+
+	updateElement: function(point, index, reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var custom = point.custom || {};
+		var dataset = me.getDataset();
+		var datasetIndex = me.index;
+		var value = dataset.data[index];
+		var yScale = me.getScaleForId(meta.yAxisID);
+		var xScale = me.getScaleForId(meta.xAxisID);
+		var lineModel = meta.dataset._model;
+		var x, y;
+
+		var options = me._resolvePointOptions(point, index);
+
+		x = xScale.getPixelForValue(typeof value === ''object'' ? value : NaN, index, datasetIndex);
+		y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);
+
+		// Utility
+		point._xScale = xScale;
+		point._yScale = yScale;
+		point._options = options;
+		point._datasetIndex = datasetIndex;
+		point._index = index;
+
+		// Desired view properties
+		point._model = {
+			x: x,
+			y: y,
+			skip: custom.skip || isNaN(x) || isNaN(y),
+			// Appearance
+			radius: options.radius,
+			pointStyle: options.pointStyle,
+			rotation: options.rotation,
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderWidth: options.borderWidth,
+			tension: valueOrDefault$5(custom.tension, lineModel ? lineModel.tension : 0),
+			steppedLine: lineModel ? lineModel.steppedLine : false,
+			// Tooltip
+			hitRadius: options.hitRadius
+		};
+	},
+
+	/**
+	 * @private
+	 */
+	_resolvePointOptions: function(element, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options.elements.point;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		var ELEMENT_OPTIONS = {
+			backgroundColor: ''pointBackgroundColor'',
+			borderColor: ''pointBorderColor'',
+			borderWidth: ''pointBorderWidth'',
+			hitRadius: ''pointHitRadius'',
+			hoverBackgroundColor: ''pointHoverBackgroundColor'',
+			hoverBorderColor: ''pointHoverBorderColor'',
+			hoverBorderWidth: ''pointHoverBorderWidth'',
+			hoverRadius: ''pointHoverRadius'',
+			pointStyle: ''pointStyle'',
+			radius: ''pointRadius'',
+			rotation: ''pointRotation''
+		};
+		var keys = Object.keys(ELEMENT_OPTIONS);
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$4([
+				custom[key],
+				dataset[ELEMENT_OPTIONS[key]],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
+
+		return values;
+	},
+
+	/**
+	 * @private
+	 */
+	_resolveLineOptions: function(element) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options;
+		var elementOptions = options.elements.line;
+		var values = {};
+		var i, ilen, key;
+
+		var keys = [
+			''backgroundColor'',
+			''borderWidth'',
+			''borderColor'',
+			''borderCapStyle'',
+			''borderDash'',
+			''borderDashOffset'',
+			''borderJoinStyle'',
+			''fill'',
+			''cubicInterpolationMode''
+		];
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$4([
+				custom[key],
+				dataset[key],
+				elementOptions[key]
+			]);
+		}
+
+		// The default behavior of lines is to break at null values, according
+		// to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
+		// This option gives lines the ability to span gaps
+		values.spanGaps = valueOrDefault$5(dataset.spanGaps, options.spanGaps);
+		values.tension = valueOrDefault$5(dataset.lineTension, elementOptions.tension);
+		values.steppedLine = resolve$4([custom.steppedLine, dataset.steppedLine, elementOptions.stepped]);
+
+		return values;
+	},
+
+	calculatePointY: function(value, index, datasetIndex) {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var yScale = me.getScaleForId(meta.yAxisID);
+		var sumPos = 0;
+		var sumNeg = 0;
+		var i, ds, dsMeta;
+
+		if (yScale.options.stacked) {
+			for (i = 0; i < datasetIndex; i++) {
+				ds = chart.data.datasets[i];
+				dsMeta = chart.getDatasetMeta(i);
+				if (dsMeta.type === ''line'' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
+					var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
+					if (stackedRightValue < 0) {
+						sumNeg += stackedRightValue || 0;
+					} else {
+						sumPos += stackedRightValue || 0;
+					}
+				}
+			}
+
+			var rightValue = Number(yScale.getRightValue(value));
+			if (rightValue < 0) {
+				return yScale.getPixelForValue(sumNeg + rightValue);
+			}
+			return yScale.getPixelForValue(sumPos + rightValue);
+		}
+
+		return yScale.getPixelForValue(value);
+	},
+
+	updateBezierControlPoints: function() {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var lineModel = meta.dataset._model;
+		var area = chart.chartArea;
+		var points = meta.data || [];
+		var i, ilen, model, controlPoints;
+
+		// Only consider points that are drawn in case the spanGaps option is used
+		if (lineModel.spanGaps) {
+			points = points.filter(function(pt) {
+				return !pt._model.skip;
+			});
+		}
+
+		function capControlPoint(pt, min, max) {
+			return Math.max(Math.min(pt, max), min);
+		}
+
+		if (lineModel.cubicInterpolationMode === ''monotone'') {
+			helpers$1.splineCurveMonotone(points);
+		} else {
+			for (i = 0, ilen = points.length; i < ilen; ++i) {
+				model = points[i]._model;
+				controlPoints = helpers$1.splineCurve(
+					helpers$1.previousItem(points, i)._model,
+					model,
+					helpers$1.nextItem(points, i)._model,
+					lineModel.tension
+				);
+				model.controlPointPreviousX = controlPoints.previous.x;
+				model.controlPointPreviousY = controlPoints.previous.y;
+				model.controlPointNextX = controlPoints.next.x;
+				model.controlPointNextY = controlPoints.next.y;
+			}
+		}
+
+		if (chart.options.elements.line.capBezierPoints) {
+			for (i = 0, ilen = points.length; i < ilen; ++i) {
+				model = points[i]._model;
+				if (isPointInArea(model, area)) {
+					if (i > 0 && isPointInArea(points[i - 1]._model, area)) {
+						model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
+						model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
+					}
+					if (i < points.length - 1 && isPointInArea(points[i + 1]._model, area)) {
+						model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
+						model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
+					}
+				}
+			}
+		}
+	},
+
+	draw: function() {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var points = meta.data || [];
+		var area = chart.chartArea;
+		var ilen = points.length;
+		var halfBorderWidth;
+		var i = 0;
+
+		if (lineEnabled(me.getDataset(), chart.options)) {
+			halfBorderWidth = (meta.dataset._model.borderWidth || 0) / 2;
+
+			helpers$1.canvas.clipArea(chart.ctx, {
+				left: area.left,
+				right: area.right,
+				top: area.top - halfBorderWidth,
+				bottom: area.bottom + halfBorderWidth
+			});
+
+			meta.dataset.draw();
+
+			helpers$1.canvas.unclipArea(chart.ctx);
+		}
+
+		// Draw the points
+		for (; i < ilen; ++i) {
+			points[i].draw(area);
+		}
+	},
+
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(point) {
+		var model = point._model;
+		var options = point._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		point.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+			radius: model.radius
+		};
+
+		model.backgroundColor = valueOrDefault$5(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$5(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$5(options.hoverBorderWidth, options.borderWidth);
+		model.radius = valueOrDefault$5(options.hoverRadius, options.radius);
+	},
+});
+
+var resolve$5 = helpers$1.options.resolve;
+
+core_defaults._set(''polarArea'', {
+	scale: {
+		type: ''radialLinear'',
+		angleLines: {
+			display: false
+		},
+		gridLines: {
+			circular: true
+		},
+		pointLabels: {
+			display: false
+		},
+		ticks: {
+			beginAtZero: true
+		}
+	},
+
+	// Boolean - Whether to animate the rotation of the chart
+	animation: {
+		animateRotate: true,
+		animateScale: true
+	},
+
+	startAngle: -0.5 * Math.PI,
+	legendCallback: function(chart) {
+		var text = [];
+		text.push(''<ul class="'' + chart.id + ''-legend">'');
+
+		var data = chart.data;
+		var datasets = data.datasets;
+		var labels = data.labels;
+
+		if (datasets.length) {
+			for (var i = 0; i < datasets[0].data.length; ++i) {
+				text.push(''<li><span style="background-color:'' + datasets[0].backgroundColor[i] + ''"></span>'');
+				if (labels[i]) {
+					text.push(labels[i]);
+				}
+				text.push(''</li>'');
+			}
+		}
+
+		text.push(''</ul>'');
+		return text.join('''');
+	},
+	legend: {
+		labels: {
+			generateLabels: function(chart) {
+				var data = chart.data;
+				if (data.labels.length && data.datasets.length) {
+					return data.labels.map(function(label, i) {
+						var meta = chart.getDatasetMeta(0);
+						var ds = data.datasets[0];
+						var arc = meta.data[i];
+						var custom = arc.custom || {};
+						var arcOpts = chart.options.elements.arc;
+						var fill = resolve$5([custom.backgroundColor, ds.backgroundColor, arcOpts.backgroundColor], undefined, i);
+						var stroke = resolve$5([custom.borderColor, ds.borderColor, arcOpts.borderColor], undefined, i);
+						var bw = resolve$5([custom.borderWidth, ds.borderWidth, arcOpts.borderWidth], undefined, i);
+
+						return {
+							text: label,
+							fillStyle: fill,
+							strokeStyle: stroke,
+							lineWidth: bw,
+							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
+
+							// Extra data used for toggling the correct item
+							index: i
+						};
+					});
+				}
+				return [];
+			}
+		},
+
+		onClick: function(e, legendItem) {
+			var index = legendItem.index;
+			var chart = this.chart;
+			var i, ilen, meta;
+
+			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
+				meta = chart.getDatasetMeta(i);
+				meta.data[index].hidden = !meta.data[index].hidden;
+			}
+
+			chart.update();
+		}
+	},
+
+	// Need to override these to give a nice default
+	tooltips: {
+		callbacks: {
+			title: function() {
+				return '''';
 			},
-			easeOutElastic: function (t) {
-				var s = 1.70158;
-				var p = 0;
-				var a = 1;
-				if (t === 0) return 0;
-				if ((t /= 1) == 1) return 1;
-				if (!p) p = 1 * 0.3;
-				if (a < Math.abs(1)) {
-					a = 1;
-					s = p / 4;
-				} else s = p / (2 * Math.PI) * Math.asin(1 / a);
-				return a * Math.pow(2, -10 * t) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) + 1;
+			label: function(item, data) {
+				return data.labels[item.index] + '': '' + item.yLabel;
+			}
+		}
+	}
+});
+
+var controller_polarArea = core_datasetController.extend({
+
+	dataElementType: elements.Arc,
+
+	linkScales: helpers$1.noop,
+
+	update: function(reset) {
+		var me = this;
+		var dataset = me.getDataset();
+		var meta = me.getMeta();
+		var start = me.chart.options.startAngle || 0;
+		var starts = me._starts = [];
+		var angles = me._angles = [];
+		var arcs = meta.data;
+		var i, ilen, angle;
+
+		me._updateRadius();
+
+		meta.count = me.countVisibleElements();
+
+		for (i = 0, ilen = dataset.data.length; i < ilen; i++) {
+			starts[i] = start;
+			angle = me._computeAngle(i);
+			angles[i] = angle;
+			start += angle;
+		}
+
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			arcs[i]._options = me._resolveElementOptions(arcs[i], i);
+			me.updateElement(arcs[i], i, reset);
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	_updateRadius: function() {
+		var me = this;
+		var chart = me.chart;
+		var chartArea = chart.chartArea;
+		var opts = chart.options;
+		var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
+
+		chart.outerRadius = Math.max(minSize / 2, 0);
+		chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
+		chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
+
+		me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
+		me.innerRadius = me.outerRadius - chart.radiusLength;
+	},
+
+	updateElement: function(arc, index, reset) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = me.getDataset();
+		var opts = chart.options;
+		var animationOpts = opts.animation;
+		var scale = chart.scale;
+		var labels = chart.data.labels;
+
+		var centerX = scale.xCenter;
+		var centerY = scale.yCenter;
+
+		// var negHalfPI = -0.5 * Math.PI;
+		var datasetStartAngle = opts.startAngle;
+		var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
+		var startAngle = me._starts[index];
+		var endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]);
+
+		var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
+		var options = arc._options || {};
+
+		helpers$1.extend(arc, {
+			// Utility
+			_datasetIndex: me.index,
+			_index: index,
+			_scale: scale,
+
+			// Desired view properties
+			_model: {
+				backgroundColor: options.backgroundColor,
+				borderColor: options.borderColor,
+				borderWidth: options.borderWidth,
+				borderAlign: options.borderAlign,
+				x: centerX,
+				y: centerY,
+				innerRadius: 0,
+				outerRadius: reset ? resetRadius : distance,
+				startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
+				endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
+				label: helpers$1.valueAtIndexOrDefault(labels, index, labels[index])
+			}
+		});
+
+		arc.pivot();
+	},
+
+	countVisibleElements: function() {
+		var dataset = this.getDataset();
+		var meta = this.getMeta();
+		var count = 0;
+
+		helpers$1.each(meta.data, function(element, index) {
+			if (!isNaN(dataset.data[index]) && !element.hidden) {
+				count++;
+			}
+		});
+
+		return count;
+	},
+
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(arc) {
+		var model = arc._model;
+		var options = arc._options;
+		var getHoverColor = helpers$1.getHoverColor;
+		var valueOrDefault = helpers$1.valueOrDefault;
+
+		arc.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+		};
+
+		model.backgroundColor = valueOrDefault(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault(options.hoverBorderWidth, options.borderWidth);
+	},
+
+	/**
+	 * @private
+	 */
+	_resolveElementOptions: function(arc, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = me.getDataset();
+		var custom = arc.custom || {};
+		var options = chart.options.elements.arc;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		var keys = [
+			''backgroundColor'',
+			''borderColor'',
+			''borderWidth'',
+			''borderAlign'',
+			''hoverBackgroundColor'',
+			''hoverBorderColor'',
+			''hoverBorderWidth'',
+		];
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$5([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
+
+		return values;
+	},
+
+	/**
+	 * @private
+	 */
+	_computeAngle: function(index) {
+		var me = this;
+		var count = this.getMeta().count;
+		var dataset = me.getDataset();
+		var meta = me.getMeta();
+
+		if (isNaN(dataset.data[index]) || meta.data[index].hidden) {
+			return 0;
+		}
+
+		// Scriptable options
+		var context = {
+			chart: me.chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		return resolve$5([
+			me.chart.options.elements.arc.angle,
+			(2 * Math.PI) / count
+		], context, index);
+	}
+});
+
+core_defaults._set(''pie'', helpers$1.clone(core_defaults.doughnut));
+core_defaults._set(''pie'', {
+	cutoutPercentage: 0
+});
+
+// Pie charts are Doughnut chart with different defaults
+var controller_pie = controller_doughnut;
+
+var valueOrDefault$6 = helpers$1.valueOrDefault;
+var resolve$6 = helpers$1.options.resolve;
+
+core_defaults._set(''radar'', {
+	scale: {
+		type: ''radialLinear''
+	},
+	elements: {
+		line: {
+			tension: 0 // no bezier in radar
+		}
+	}
+});
+
+var controller_radar = core_datasetController.extend({
+
+	datasetElementType: elements.Line,
+
+	dataElementType: elements.Point,
+
+	linkScales: helpers$1.noop,
+
+	update: function(reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var line = meta.dataset;
+		var points = meta.data || [];
+		var scale = me.chart.scale;
+		var dataset = me.getDataset();
+		var i, ilen;
+
+		// Compatibility: If the properties are defined with only the old name, use those values
+		if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
+			dataset.lineTension = dataset.tension;
+		}
+
+		// Utility
+		line._scale = scale;
+		line._datasetIndex = me.index;
+		// Data
+		line._children = points;
+		line._loop = true;
+		// Model
+		line._model = me._resolveLineOptions(line);
+
+		line.pivot();
+
+		// Update Points
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			me.updateElement(points[i], i, reset);
+		}
+
+		// Update bezier control points
+		me.updateBezierControlPoints();
+
+		// Now pivot the point for animation
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			points[i].pivot();
+		}
+	},
+
+	updateElement: function(point, index, reset) {
+		var me = this;
+		var custom = point.custom || {};
+		var dataset = me.getDataset();
+		var scale = me.chart.scale;
+		var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);
+		var options = me._resolvePointOptions(point, index);
+		var lineModel = me.getMeta().dataset._model;
+		var x = reset ? scale.xCenter : pointPosition.x;
+		var y = reset ? scale.yCenter : pointPosition.y;
+
+		// Utility
+		point._scale = scale;
+		point._options = options;
+		point._datasetIndex = me.index;
+		point._index = index;
+
+		// Desired view properties
+		point._model = {
+			x: x, // value not used in dataset scale, but we want a consistent API between scales
+			y: y,
+			skip: custom.skip || isNaN(x) || isNaN(y),
+			// Appearance
+			radius: options.radius,
+			pointStyle: options.pointStyle,
+			rotation: options.rotation,
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderWidth: options.borderWidth,
+			tension: valueOrDefault$6(custom.tension, lineModel ? lineModel.tension : 0),
+
+			// Tooltip
+			hitRadius: options.hitRadius
+		};
+	},
+
+	/**
+	 * @private
+	 */
+	_resolvePointOptions: function(element, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options.elements.point;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		var ELEMENT_OPTIONS = {
+			backgroundColor: ''pointBackgroundColor'',
+			borderColor: ''pointBorderColor'',
+			borderWidth: ''pointBorderWidth'',
+			hitRadius: ''pointHitRadius'',
+			hoverBackgroundColor: ''pointHoverBackgroundColor'',
+			hoverBorderColor: ''pointHoverBorderColor'',
+			hoverBorderWidth: ''pointHoverBorderWidth'',
+			hoverRadius: ''pointHoverRadius'',
+			pointStyle: ''pointStyle'',
+			radius: ''pointRadius'',
+			rotation: ''pointRotation''
+		};
+		var keys = Object.keys(ELEMENT_OPTIONS);
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$6([
+				custom[key],
+				dataset[ELEMENT_OPTIONS[key]],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
+
+		return values;
+	},
+
+	/**
+	 * @private
+	 */
+	_resolveLineOptions: function(element) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options.elements.line;
+		var values = {};
+		var i, ilen, key;
+
+		var keys = [
+			''backgroundColor'',
+			''borderWidth'',
+			''borderColor'',
+			''borderCapStyle'',
+			''borderDash'',
+			''borderDashOffset'',
+			''borderJoinStyle'',
+			''fill''
+		];
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$6([
+				custom[key],
+				dataset[key],
+				options[key]
+			]);
+		}
+
+		values.tension = valueOrDefault$6(dataset.lineTension, options.tension);
+
+		return values;
+	},
+
+	updateBezierControlPoints: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var area = me.chart.chartArea;
+		var points = meta.data || [];
+		var i, ilen, model, controlPoints;
+
+		function capControlPoint(pt, min, max) {
+			return Math.max(Math.min(pt, max), min);
+		}
+
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			model = points[i]._model;
+			controlPoints = helpers$1.splineCurve(
+				helpers$1.previousItem(points, i, true)._model,
+				model,
+				helpers$1.nextItem(points, i, true)._model,
+				model.tension
+			);
+
+			// Prevent the bezier going outside of the bounds of the graph
+			model.controlPointPreviousX = capControlPoint(controlPoints.previous.x, area.left, area.right);
+			model.controlPointPreviousY = capControlPoint(controlPoints.previous.y, area.top, area.bottom);
+			model.controlPointNextX = capControlPoint(controlPoints.next.x, area.left, area.right);
+			model.controlPointNextY = capControlPoint(controlPoints.next.y, area.top, area.bottom);
+		}
+	},
+
+	setHoverStyle: function(point) {
+		var model = point._model;
+		var options = point._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		point.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+			radius: model.radius
+		};
+
+		model.backgroundColor = valueOrDefault$6(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$6(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$6(options.hoverBorderWidth, options.borderWidth);
+		model.radius = valueOrDefault$6(options.hoverRadius, options.radius);
+	}
+});
+
+core_defaults._set(''scatter'', {
+	hover: {
+		mode: ''single''
+	},
+
+	scales: {
+		xAxes: [{
+			id: ''x-axis-1'',    // need an ID so datasets can reference the scale
+			type: ''linear'',    // scatter should not use a category axis
+			position: ''bottom''
+		}],
+		yAxes: [{
+			id: ''y-axis-1'',
+			type: ''linear'',
+			position: ''left''
+		}]
+	},
+
+	showLines: false,
+
+	tooltips: {
+		callbacks: {
+			title: function() {
+				return '''';     // doesn''t make sense for scatter since data are formatted as a point
 			},
-			easeInOutElastic: function (t) {
-				var s = 1.70158;
-				var p = 0;
-				var a = 1;
-				if (t === 0) return 0;
-				if ((t /= 1 / 2) == 2) return 1;
-				if (!p) p = 1 * (0.3 * 1.5);
-				if (a < Math.abs(1)) {
-					a = 1;
-					s = p / 4;
-				} else s = p / (2 * Math.PI) * Math.asin(1 / a);
-				if (t < 1) return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p));
-				return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * 1 - s) * (2 * Math.PI) / p) * 0.5 + 1;
+			label: function(item) {
+				return ''('' + item.xLabel + '', '' + item.yLabel + '')'';
+			}
+		}
+	}
+});
+
+// Scatter charts use line controllers
+var controller_scatter = controller_line;
+
+// NOTE export a map in which the key represents the controller type, not
+// the class, and so must be CamelCase in order to be correctly retrieved
+// by the controller in core.controller.js (`controllers[meta.type]`).
+
+var controllers = {
+	bar: controller_bar,
+	bubble: controller_bubble,
+	doughnut: controller_doughnut,
+	horizontalBar: controller_horizontalBar,
+	line: controller_line,
+	polarArea: controller_polarArea,
+	pie: controller_pie,
+	radar: controller_radar,
+	scatter: controller_scatter
+};
+
+/**
+ * Helper function to get relative position for an event
+ * @param {Event|IEvent} event - The event to get the position for
+ * @param {Chart} chart - The chart
+ * @returns {object} the event position
+ */
+function getRelativePosition(e, chart) {
+	if (e.native) {
+		return {
+			x: e.x,
+			y: e.y
+		};
+	}
+
+	return helpers$1.getRelativePosition(e, chart);
+}
+
+/**
+ * Helper function to traverse all of the visible elements in the chart
+ * @param {Chart} chart - the chart
+ * @param {function} handler - the callback to execute for each visible item
+ */
+function parseVisibleItems(chart, handler) {
+	var datasets = chart.data.datasets;
+	var meta, i, j, ilen, jlen;
+
+	for (i = 0, ilen = datasets.length; i < ilen; ++i) {
+		if (!chart.isDatasetVisible(i)) {
+			continue;
+		}
+
+		meta = chart.getDatasetMeta(i);
+		for (j = 0, jlen = meta.data.length; j < jlen; ++j) {
+			var element = meta.data[j];
+			if (!element._view.skip) {
+				handler(element);
+			}
+		}
+	}
+}
+
+/**
+ * Helper function to get the items that intersect the event position
+ * @param {ChartElement[]} items - elements to filter
+ * @param {object} position - the point to be nearest to
+ * @return {ChartElement[]} the nearest items
+ */
+function getIntersectItems(chart, position) {
+	var elements = [];
+
+	parseVisibleItems(chart, function(element) {
+		if (element.inRange(position.x, position.y)) {
+			elements.push(element);
+		}
+	});
+
+	return elements;
+}
+
+/**
+ * Helper function to get the items nearest to the event position considering all visible items in teh chart
+ * @param {Chart} chart - the chart to look at elements from
+ * @param {object} position - the point to be nearest to
+ * @param {boolean} intersect - if true, only consider items that intersect the position
+ * @param {function} distanceMetric - function to provide the distance between points
+ * @return {ChartElement[]} the nearest items
+ */
+function getNearestItems(chart, position, intersect, distanceMetric) {
+	var minDistance = Number.POSITIVE_INFINITY;
+	var nearestItems = [];
+
+	parseVisibleItems(chart, function(element) {
+		if (intersect && !element.inRange(position.x, position.y)) {
+			return;
+		}
+
+		var center = element.getCenterPoint();
+		var distance = distanceMetric(position, center);
+		if (distance < minDistance) {
+			nearestItems = [element];
+			minDistance = distance;
+		} else if (distance === minDistance) {
+			// Can have multiple items at the same distance in which case we sort by size
+			nearestItems.push(element);
+		}
+	});
+
+	return nearestItems;
+}
+
+/**
+ * Get a distance metric function for two points based on the
+ * axis mode setting
+ * @param {string} axis - the axis mode. x|y|xy
+ */
+function getDistanceMetricForAxis(axis) {
+	var useX = axis.indexOf(''x'') !== -1;
+	var useY = axis.indexOf(''y'') !== -1;
+
+	return function(pt1, pt2) {
+		var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
+		var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
+		return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
+	};
+}
+
+function indexMode(chart, e, options) {
+	var position = getRelativePosition(e, chart);
+	// Default axis for index mode is ''x'' to match old behaviour
+	options.axis = options.axis || ''x'';
+	var distanceMetric = getDistanceMetricForAxis(options.axis);
+	var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
+	var elements = [];
+
+	if (!items.length) {
+		return [];
+	}
+
+	chart.data.datasets.forEach(function(dataset, datasetIndex) {
+		if (chart.isDatasetVisible(datasetIndex)) {
+			var meta = chart.getDatasetMeta(datasetIndex);
+			var element = meta.data[items[0]._index];
+
+			// don''t count items that are skipped (null data)
+			if (element && !element._view.skip) {
+				elements.push(element);
+			}
+		}
+	});
+
+	return elements;
+}
+
+/**
+ * @interface IInteractionOptions
+ */
+/**
+ * If true, only consider items that intersect the point
+ * @name IInterfaceOptions#boolean
+ * @type Boolean
+ */
+
+/**
+ * Contains interaction related functions
+ * @namespace Chart.Interaction
+ */
+var core_interaction = {
+	// Helper function for different modes
+	modes: {
+		single: function(chart, e) {
+			var position = getRelativePosition(e, chart);
+			var elements = [];
+
+			parseVisibleItems(chart, function(element) {
+				if (element.inRange(position.x, position.y)) {
+					elements.push(element);
+					return elements;
+				}
+			});
+
+			return elements.slice(0, 1);
+		},
+
+		/**
+		 * @function Chart.Interaction.modes.label
+		 * @deprecated since version 2.4.0
+		 * @todo remove at version 3
+		 * @private
+		 */
+		label: indexMode,
+
+		/**
+		 * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something
+		 * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item
+		 * @function Chart.Interaction.modes.index
+		 * @since v2.4.0
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use during interaction
+		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
+		 */
+		index: indexMode,
+
+		/**
+		 * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something
+		 * If the options.intersect is false, we find the nearest item and return the items in that dataset
+		 * @function Chart.Interaction.modes.dataset
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use during interaction
+		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
+		 */
+		dataset: function(chart, e, options) {
+			var position = getRelativePosition(e, chart);
+			options.axis = options.axis || ''xy'';
+			var distanceMetric = getDistanceMetricForAxis(options.axis);
+			var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
+
+			if (items.length > 0) {
+				items = chart.getDatasetMeta(items[0]._datasetIndex).data;
+			}
+
+			return items;
+		},
+
+		/**
+		 * @function Chart.Interaction.modes.x-axis
+		 * @deprecated since version 2.4.0. Use index mode and intersect == true
+		 * @todo remove at version 3
+		 * @private
+		 */
+		''x-axis'': function(chart, e) {
+			return indexMode(chart, e, {intersect: false});
+		},
+
+		/**
+		 * Point mode returns all elements that hit test based on the event position
+		 * of the event
+		 * @function Chart.Interaction.modes.intersect
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
+		 */
+		point: function(chart, e) {
+			var position = getRelativePosition(e, chart);
+			return getIntersectItems(chart, position);
+		},
+
+		/**
+		 * nearest mode returns the element closest to the point
+		 * @function Chart.Interaction.modes.intersect
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use
+		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
+		 */
+		nearest: function(chart, e, options) {
+			var position = getRelativePosition(e, chart);
+			options.axis = options.axis || ''xy'';
+			var distanceMetric = getDistanceMetricForAxis(options.axis);
+			return getNearestItems(chart, position, options.intersect, distanceMetric);
+		},
+
+		/**
+		 * x mode returns the elements that hit-test at the current x coordinate
+		 * @function Chart.Interaction.modes.x
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use
+		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
+		 */
+		x: function(chart, e, options) {
+			var position = getRelativePosition(e, chart);
+			var items = [];
+			var intersectsItem = false;
+
+			parseVisibleItems(chart, function(element) {
+				if (element.inXRange(position.x)) {
+					items.push(element);
+				}
+
+				if (element.inRange(position.x, position.y)) {
+					intersectsItem = true;
+				}
+			});
+
+			// If we want to trigger on an intersect and we don''t have any items
+			// that intersect the position, return nothing
+			if (options.intersect && !intersectsItem) {
+				items = [];
+			}
+			return items;
+		},
+
+		/**
+		 * y mode returns the elements that hit-test at the current y coordinate
+		 * @function Chart.Interaction.modes.y
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use
+		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
+		 */
+		y: function(chart, e, options) {
+			var position = getRelativePosition(e, chart);
+			var items = [];
+			var intersectsItem = false;
+
+			parseVisibleItems(chart, function(element) {
+				if (element.inYRange(position.y)) {
+					items.push(element);
+				}
+
+				if (element.inRange(position.x, position.y)) {
+					intersectsItem = true;
+				}
+			});
+
+			// If we want to trigger on an intersect and we don''t have any items
+			// that intersect the position, return nothing
+			if (options.intersect && !intersectsItem) {
+				items = [];
+			}
+			return items;
+		}
+	}
+};
+
+function filterByPosition(array, position) {
+	return helpers$1.where(array, function(v) {
+		return v.position === position;
+	});
+}
+
+function sortByWeight(array, reverse) {
+	array.forEach(function(v, i) {
+		v._tmpIndex_ = i;
+		return v;
+	});
+	array.sort(function(a, b) {
+		var v0 = reverse ? b : a;
+		var v1 = reverse ? a : b;
+		return v0.weight === v1.weight ?
+			v0._tmpIndex_ - v1._tmpIndex_ :
+			v0.weight - v1.weight;
+	});
+	array.forEach(function(v) {
+		delete v._tmpIndex_;
+	});
+}
+
+function findMaxPadding(boxes) {
+	var top = 0;
+	var left = 0;
+	var bottom = 0;
+	var right = 0;
+	helpers$1.each(boxes, function(box) {
+		if (box.getPadding) {
+			var boxPadding = box.getPadding();
+			top = Math.max(top, boxPadding.top);
+			left = Math.max(left, boxPadding.left);
+			bottom = Math.max(bottom, boxPadding.bottom);
+			right = Math.max(right, boxPadding.right);
+		}
+	});
+	return {
+		top: top,
+		left: left,
+		bottom: bottom,
+		right: right
+	};
+}
+
+function addSizeByPosition(boxes, size) {
+	helpers$1.each(boxes, function(box) {
+		size[box.position] += box.isHorizontal() ? box.height : box.width;
+	});
+}
+
+core_defaults._set(''global'', {
+	layout: {
+		padding: {
+			top: 0,
+			right: 0,
+			bottom: 0,
+			left: 0
+		}
+	}
+});
+
+/**
+ * @interface ILayoutItem
+ * @prop {string} position - The position of the item in the chart layout. Possible values are
+ * ''left'', ''top'', ''right'', ''bottom'', and ''chartArea''
+ * @prop {number} weight - The weight used to sort the item. Higher weights are further away from the chart area
+ * @prop {boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
+ * @prop {function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
+ * @prop {function} update - Takes two parameters: width and height. Returns size of item
+ * @prop {function} getPadding -  Returns an object with padding on the edges
+ * @prop {number} width - Width of item. Must be valid after update()
+ * @prop {number} height - Height of item. Must be valid after update()
+ * @prop {number} left - Left edge of the item. Set by layout system and cannot be used in update
+ * @prop {number} top - Top edge of the item. Set by layout system and cannot be used in update
+ * @prop {number} right - Right edge of the item. Set by layout system and cannot be used in update
+ * @prop {number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
+ */
+
+// The layout service is very self explanatory.  It''s responsible for the layout within a chart.
+// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
+// It is this service''s responsibility of carrying out that layout.
+var core_layouts = {
+	defaults: {},
+
+	/**
+	 * Register a box to a chart.
+	 * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title.
+	 * @param {Chart} chart - the chart to use
+	 * @param {ILayoutItem} item - the item to add to be layed out
+	 */
+	addBox: function(chart, item) {
+		if (!chart.boxes) {
+			chart.boxes = [];
+		}
+
+		// initialize item with default values
+		item.fullWidth = item.fullWidth || false;
+		item.position = item.position || ''top'';
+		item.weight = item.weight || 0;
+
+		chart.boxes.push(item);
+	},
+
+	/**
+	 * Remove a layoutItem from a chart
+	 * @param {Chart} chart - the chart to remove the box from
+	 * @param {ILayoutItem} layoutItem - the item to remove from the layout
+	 */
+	removeBox: function(chart, layoutItem) {
+		var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
+		if (index !== -1) {
+			chart.boxes.splice(index, 1);
+		}
+	},
+
+	/**
+	 * Sets (or updates) options on the given `item`.
+	 * @param {Chart} chart - the chart in which the item lives (or will be added to)
+	 * @param {ILayoutItem} item - the item to configure with the given options
+	 * @param {object} options - the new item options.
+	 */
+	configure: function(chart, item, options) {
+		var props = [''fullWidth'', ''position'', ''weight''];
+		var ilen = props.length;
+		var i = 0;
+		var prop;
+
+		for (; i < ilen; ++i) {
+			prop = props[i];
+			if (options.hasOwnProperty(prop)) {
+				item[prop] = options[prop];
+			}
+		}
+	},
+
+	/**
+	 * Fits boxes of the given chart into the given size by having each box measure itself
+	 * then running a fitting algorithm
+	 * @param {Chart} chart - the chart
+	 * @param {number} width - the width to fit into
+	 * @param {number} height - the height to fit into
+	 */
+	update: function(chart, width, height) {
+		if (!chart) {
+			return;
+		}
+
+		var layoutOptions = chart.options.layout || {};
+		var padding = helpers$1.options.toPadding(layoutOptions.padding);
+		var leftPadding = padding.left;
+		var rightPadding = padding.right;
+		var topPadding = padding.top;
+		var bottomPadding = padding.bottom;
+
+		var leftBoxes = filterByPosition(chart.boxes, ''left'');
+		var rightBoxes = filterByPosition(chart.boxes, ''right'');
+		var topBoxes = filterByPosition(chart.boxes, ''top'');
+		var bottomBoxes = filterByPosition(chart.boxes, ''bottom'');
+		var chartAreaBoxes = filterByPosition(chart.boxes, ''chartArea'');
+
+		// Sort boxes by weight. A higher weight is further away from the chart area
+		sortByWeight(leftBoxes, true);
+		sortByWeight(rightBoxes, false);
+		sortByWeight(topBoxes, true);
+		sortByWeight(bottomBoxes, false);
+
+		var verticalBoxes = leftBoxes.concat(rightBoxes);
+		var horizontalBoxes = topBoxes.concat(bottomBoxes);
+		var outerBoxes = verticalBoxes.concat(horizontalBoxes);
+
+		// Essentially we now have any number of boxes on each of the 4 sides.
+		// Our canvas looks like the following.
+		// The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
+		// B1 is the bottom axis
+		// There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays
+		// These locations are single-box locations only, when trying to register a chartArea location that is already taken,
+		// an error will be thrown.
+		//
+		// |----------------------------------------------------|
+		// |                  T1 (Full Width)                   |
+		// |----------------------------------------------------|
+		// |    |    |                 T2                  |    |
+		// |    |----|-------------------------------------|----|
+		// |    |    | C1 |                           | C2 |    |
+		// |    |    |----|                           |----|    |
+		// |    |    |                                     |    |
+		// | L1 | L2 |           ChartArea (C0)            | R1 |
+		// |    |    |                                     |    |
+		// |    |    |----|                           |----|    |
+		// |    |    | C3 |                           | C4 |    |
+		// |    |----|-------------------------------------|----|
+		// |    |    |                 B1                  |    |
+		// |----------------------------------------------------|
+		// |                  B2 (Full Width)                   |
+		// |----------------------------------------------------|
+		//
+		// What we do to find the best sizing, we do the following
+		// 1. Determine the minimum size of the chart area.
+		// 2. Split the remaining width equally between each vertical axis
+		// 3. Split the remaining height equally between each horizontal axis
+		// 4. Give each layout the maximum size it can be. The layout will return it''s minimum size
+		// 5. Adjust the sizes of each axis based on it''s minimum reported size.
+		// 6. Refit each axis
+		// 7. Position each axis in the final location
+		// 8. Tell the chart the final location of the chart area
+		// 9. Tell any axes that overlay the chart area the positions of the chart area
+
+		// Step 1
+		var chartWidth = width - leftPadding - rightPadding;
+		var chartHeight = height - topPadding - bottomPadding;
+		var chartAreaWidth = chartWidth / 2; // min 50%
+
+		// Step 2
+		var verticalBoxWidth = (width - chartAreaWidth) / verticalBoxes.length;
+
+		// Step 3
+		// TODO re-limit horizontal axis height (this limit has affected only padding calculation since PR 1837)
+		// var horizontalBoxHeight = (height - chartAreaHeight) / horizontalBoxes.length;
+
+		// Step 4
+		var maxChartAreaWidth = chartWidth;
+		var maxChartAreaHeight = chartHeight;
+		var outerBoxSizes = {top: topPadding, left: leftPadding, bottom: bottomPadding, right: rightPadding};
+		var minBoxSizes = [];
+		var maxPadding;
+
+		function getMinimumBoxSize(box) {
+			var minSize;
+			var isHorizontal = box.isHorizontal();
+
+			if (isHorizontal) {
+				minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2);
+				maxChartAreaHeight -= minSize.height;
+			} else {
+				minSize = box.update(verticalBoxWidth, maxChartAreaHeight);
+				maxChartAreaWidth -= minSize.width;
+			}
+
+			minBoxSizes.push({
+				horizontal: isHorizontal,
+				width: minSize.width,
+				box: box,
+			});
+		}
+
+		helpers$1.each(outerBoxes, getMinimumBoxSize);
+
+		// If a horizontal box has padding, we move the left boxes over to avoid ugly charts (see issue #2478)
+		maxPadding = findMaxPadding(outerBoxes);
+
+		// At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could
+		// be if the axes are drawn at their minimum sizes.
+		// Steps 5 & 6
+
+		// Function to fit a box
+		function fitBox(box) {
+			var minBoxSize = helpers$1.findNextWhere(minBoxSizes, function(minBox) {
+				return minBox.box === box;
+			});
+
+			if (minBoxSize) {
+				if (minBoxSize.horizontal) {
+					var scaleMargin = {
+						left: Math.max(outerBoxSizes.left, maxPadding.left),
+						right: Math.max(outerBoxSizes.right, maxPadding.right),
+						top: 0,
+						bottom: 0
+					};
+
+					// Don''t use min size here because of label rotation. When the labels are rotated, their rotation highly depends
+					// on the margin. Sometimes they need to increase in size slightly
+					box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin);
+				} else {
+					box.update(minBoxSize.width, maxChartAreaHeight);
+				}
+			}
+		}
+
+		// Update, and calculate the left and right margins for the horizontal boxes
+		helpers$1.each(verticalBoxes, fitBox);
+		addSizeByPosition(verticalBoxes, outerBoxSizes);
+
+		// Set the Left and Right margins for the horizontal boxes
+		helpers$1.each(horizontalBoxes, fitBox);
+		addSizeByPosition(horizontalBoxes, outerBoxSizes);
+
+		function finalFitVerticalBox(box) {
+			var minBoxSize = helpers$1.findNextWhere(minBoxSizes, function(minSize) {
+				return minSize.box === box;
+			});
+
+			var scaleMargin = {
+				left: 0,
+				right: 0,
+				top: outerBoxSizes.top,
+				bottom: outerBoxSizes.bottom
+			};
+
+			if (minBoxSize) {
+				box.update(minBoxSize.width, maxChartAreaHeight, scaleMargin);
+			}
+		}
+
+		// Let the left layout know the final margin
+		helpers$1.each(verticalBoxes, finalFitVerticalBox);
+
+		// Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance)
+		outerBoxSizes = {top: topPadding, left: leftPadding, bottom: bottomPadding, right: rightPadding};
+		addSizeByPosition(outerBoxes, outerBoxSizes);
+
+		// We may be adding some padding to account for rotated x axis labels
+		var leftPaddingAddition = Math.max(maxPadding.left - outerBoxSizes.left, 0);
+		outerBoxSizes.left += leftPaddingAddition;
+		outerBoxSizes.right += Math.max(maxPadding.right - outerBoxSizes.right, 0);
+
+		var topPaddingAddition = Math.max(maxPadding.top - outerBoxSizes.top, 0);
+		outerBoxSizes.top += topPaddingAddition;
+		outerBoxSizes.bottom += Math.max(maxPadding.bottom - outerBoxSizes.bottom, 0);
+
+		// Figure out if our chart area changed. This would occur if the dataset layout label rotation
+		// changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
+		// without calling `fit` again
+		var newMaxChartAreaHeight = height - outerBoxSizes.top - outerBoxSizes.bottom;
+		var newMaxChartAreaWidth = width - outerBoxSizes.left - outerBoxSizes.right;
+
+		if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) {
+			helpers$1.each(verticalBoxes, function(box) {
+				box.height = newMaxChartAreaHeight;
+			});
+
+			helpers$1.each(horizontalBoxes, function(box) {
+				if (!box.fullWidth) {
+					box.width = newMaxChartAreaWidth;
+				}
+			});
+
+			maxChartAreaHeight = newMaxChartAreaHeight;
+			maxChartAreaWidth = newMaxChartAreaWidth;
+		}
+
+		// Step 7 - Position the boxes
+		var left = leftPadding + leftPaddingAddition;
+		var top = topPadding + topPaddingAddition;
+
+		function placeBox(box) {
+			if (box.isHorizontal()) {
+				box.left = box.fullWidth ? leftPadding : outerBoxSizes.left;
+				box.right = box.fullWidth ? width - rightPadding : outerBoxSizes.left + maxChartAreaWidth;
+				box.top = top;
+				box.bottom = top + box.height;
+
+				// Move to next point
+				top = box.bottom;
+
+			} else {
+
+				box.left = left;
+				box.right = left + box.width;
+				box.top = outerBoxSizes.top;
+				box.bottom = outerBoxSizes.top + maxChartAreaHeight;
+
+				// Move to next point
+				left = box.right;
+			}
+		}
+
+		helpers$1.each(leftBoxes.concat(topBoxes), placeBox);
+
+		// Account for chart width and height
+		left += maxChartAreaWidth;
+		top += maxChartAreaHeight;
+
+		helpers$1.each(rightBoxes, placeBox);
+		helpers$1.each(bottomBoxes, placeBox);
+
+		// Step 8
+		chart.chartArea = {
+			left: outerBoxSizes.left,
+			top: outerBoxSizes.top,
+			right: outerBoxSizes.left + maxChartAreaWidth,
+			bottom: outerBoxSizes.top + maxChartAreaHeight
+		};
+
+		// Step 9
+		helpers$1.each(chartAreaBoxes, function(box) {
+			box.left = chart.chartArea.left;
+			box.top = chart.chartArea.top;
+			box.right = chart.chartArea.right;
+			box.bottom = chart.chartArea.bottom;
+
+			box.update(maxChartAreaWidth, maxChartAreaHeight);
+		});
+	}
+};
+
+/**
+ * Platform fallback implementation (minimal).
+ * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
+ */
+
+var platform_basic = {
+	acquireContext: function(item) {
+		if (item && item.canvas) {
+			// Support for any object associated to a canvas (including a context2d)
+			item = item.canvas;
+		}
+
+		return item && item.getContext(''2d'') || null;
+	}
+};
+
+var platform_dom = "/*\n * DOM element rendering detection\n * https://davidwalsh.name/detect-node-insertion\n */\n@keyframes chartjs-render-animation {\n\tfrom { opacity: 0.99; }\n\tto { opacity: 1; }\n}\n\n.chartjs-render-monitor {\n\tanimation: chartjs-render-animation 0.001s;\n}\n\n/*\n * DOM element resizing detection\n * https://github.com/marcj/css-element-queries\n */\n.chartjs-size-monitor,\n.chartjs-size-monitor-expand,\n.chartjs-size-monitor-shrink {\n\tposition: absolute;\n\tdirection: ltr;\n\tleft: 0;\n\ttop: 0;\n\tright: 0;\n\tbottom: 0;\n\toverflow: hidden;\n\tpointer-events: none;\n\tvisibility: hidden;\n\tz-index: -1;\n}\n\n.chartjs-size-monitor-expand > div {\n\tposition: absolute;\n\twidth: 1000000px;\n\theight: 1000000px;\n\tleft: 0;\n\ttop: 0;\n}\n\n.chartjs-size-monitor-shrink > div {\n\tposition: absolute;\n\twidth: 200%;\n\theight: 200%;\n\tleft: 0;\n\ttop: 0;\n}\n";
+
+var platform_dom$1 = /*#__PURE__*/Object.freeze({
+default: platform_dom
+});
+
+function getCjsExportFromNamespace (n) {
+	return n && n.default || n;
+}
+
+var stylesheet = getCjsExportFromNamespace(platform_dom$1);
+
+var EXPANDO_KEY = ''$chartjs'';
+var CSS_PREFIX = ''chartjs-'';
+var CSS_SIZE_MONITOR = CSS_PREFIX + ''size-monitor'';
+var CSS_RENDER_MONITOR = CSS_PREFIX + ''render-monitor'';
+var CSS_RENDER_ANIMATION = CSS_PREFIX + ''render-animation'';
+var ANIMATION_START_EVENTS = [''animationstart'', ''webkitAnimationStart''];
+
+/**
+ * DOM event types -> Chart.js event types.
+ * Note: only events with different types are mapped.
+ * @see https://developer.mozilla.org/en-US/docs/Web/Events
+ */
+var EVENT_TYPES = {
+	touchstart: ''mousedown'',
+	touchmove: ''mousemove'',
+	touchend: ''mouseup'',
+	pointerenter: ''mouseenter'',
+	pointerdown: ''mousedown'',
+	pointermove: ''mousemove'',
+	pointerup: ''mouseup'',
+	pointerleave: ''mouseout'',
+	pointerout: ''mouseout''
+};
+
+/**
+ * The "used" size is the final value of a dimension property after all calculations have
+ * been performed. This method uses the computed style of `element` but returns undefined
+ * if the computed style is not expressed in pixels. That can happen in some cases where
+ * `element` has a size relative to its parent and this last one is not yet displayed,
+ * for example because of `display: none` on a parent node.
+ * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
+ * @returns {number} Size in pixels or undefined if unknown.
+ */
+function readUsedSize(element, property) {
+	var value = helpers$1.getStyle(element, property);
+	var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
+	return matches ? Number(matches[1]) : undefined;
+}
+
+/**
+ * Initializes the canvas style and render size without modifying the canvas display size,
+ * since responsiveness is handled by the controller.resize() method. The config is used
+ * to determine the aspect ratio to apply in case no explicit height has been specified.
+ */
+function initCanvas(canvas, config) {
+	var style = canvas.style;
+
+	// NOTE(SB) canvas.getAttribute(''width'') !== canvas.width: in the first case it
+	// returns null or '''' if no explicit value has been set to the canvas attribute.
+	var renderHeight = canvas.getAttribute(''height'');
+	var renderWidth = canvas.getAttribute(''width'');
+
+	// Chart.js modifies some canvas values that we want to restore on destroy
+	canvas[EXPANDO_KEY] = {
+		initial: {
+			height: renderHeight,
+			width: renderWidth,
+			style: {
+				display: style.display,
+				height: style.height,
+				width: style.width
+			}
+		}
+	};
+
+	// Force canvas to display as block to avoid extra space caused by inline
+	// elements, which would interfere with the responsive resize process.
+	// https://github.com/chartjs/Chart.js/issues/2538
+	style.display = style.display || ''block'';
+
+	if (renderWidth === null || renderWidth === '''') {
+		var displayWidth = readUsedSize(canvas, ''width'');
+		if (displayWidth !== undefined) {
+			canvas.width = displayWidth;
+		}
+	}
+
+	if (renderHeight === null || renderHeight === '''') {
+		if (canvas.style.height === '''') {
+			// If no explicit render height and style height, let''s apply the aspect ratio,
+			// which one can be specified by the user but also by charts as default option
+			// (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
+			canvas.height = canvas.width / (config.options.aspectRatio || 2);
+		} else {
+			var displayHeight = readUsedSize(canvas, ''height'');
+			if (displayWidth !== undefined) {
+				canvas.height = displayHeight;
+			}
+		}
+	}
+
+	return canvas;
+}
+
+/**
+ * Detects support for options object argument in addEventListener.
+ * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
+ * @private
+ */
+var supportsEventListenerOptions = (function() {
+	var supports = false;
+	try {
+		var options = Object.defineProperty({}, ''passive'', {
+			// eslint-disable-next-line getter-return
+			get: function() {
+				supports = true;
+			}
+		});
+		window.addEventListener(''e'', null, options);
+	} catch (e) {
+		// continue regardless of error
+	}
+	return supports;
+}());
+
+// Default passive to true as expected by Chrome for ''touchstart'' and ''touchend'' events.
+// https://github.com/chartjs/Chart.js/issues/4287
+var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;
+
+function addListener(node, type, listener) {
+	node.addEventListener(type, listener, eventListenerOptions);
+}
+
+function removeListener(node, type, listener) {
+	node.removeEventListener(type, listener, eventListenerOptions);
+}
+
+function createEvent(type, chart, x, y, nativeEvent) {
+	return {
+		type: type,
+		chart: chart,
+		native: nativeEvent || null,
+		x: x !== undefined ? x : null,
+		y: y !== undefined ? y : null,
+	};
+}
+
+function fromNativeEvent(event, chart) {
+	var type = EVENT_TYPES[event.type] || event.type;
+	var pos = helpers$1.getRelativePosition(event, chart);
+	return createEvent(type, chart, pos.x, pos.y, event);
+}
+
+function throttled(fn, thisArg) {
+	var ticking = false;
+	var args = [];
+
+	return function() {
+		args = Array.prototype.slice.call(arguments);
+		thisArg = thisArg || this;
+
+		if (!ticking) {
+			ticking = true;
+			helpers$1.requestAnimFrame.call(window, function() {
+				ticking = false;
+				fn.apply(thisArg, args);
+			});
+		}
+	};
+}
+
+function createDiv(cls) {
+	var el = document.createElement(''div'');
+	el.className = cls || '''';
+	return el;
+}
+
+// Implementation based on https://github.com/marcj/css-element-queries
+function createResizer(handler) {
+	var maxSize = 1000000;
+
+	// NOTE(SB) Don''t use innerHTML because it could be considered unsafe.
+	// https://github.com/chartjs/Chart.js/issues/5902
+	var resizer = createDiv(CSS_SIZE_MONITOR);
+	var expand = createDiv(CSS_SIZE_MONITOR + ''-expand'');
+	var shrink = createDiv(CSS_SIZE_MONITOR + ''-shrink'');
+
+	expand.appendChild(createDiv());
+	shrink.appendChild(createDiv());
+
+	resizer.appendChild(expand);
+	resizer.appendChild(shrink);
+	resizer._reset = function() {
+		expand.scrollLeft = maxSize;
+		expand.scrollTop = maxSize;
+		shrink.scrollLeft = maxSize;
+		shrink.scrollTop = maxSize;
+	};
+
+	var onScroll = function() {
+		resizer._reset();
+		handler();
+	};
+
+	addListener(expand, ''scroll'', onScroll.bind(expand, ''expand''));
+	addListener(shrink, ''scroll'', onScroll.bind(shrink, ''shrink''));
+
+	return resizer;
+}
+
+// https://davidwalsh.name/detect-node-insertion
+function watchForRender(node, handler) {
+	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
+	var proxy = expando.renderProxy = function(e) {
+		if (e.animationName === CSS_RENDER_ANIMATION) {
+			handler();
+		}
+	};
+
+	helpers$1.each(ANIMATION_START_EVENTS, function(type) {
+		addListener(node, type, proxy);
+	});
+
+	// #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class
+	// is removed then added back immediately (same animation frame?). Accessing the
+	// `offsetParent` property will force a reflow and re-evaluate the CSS animation.
+	// https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics
+	// https://github.com/chartjs/Chart.js/issues/4737
+	expando.reflow = !!node.offsetParent;
+
+	node.classList.add(CSS_RENDER_MONITOR);
+}
+
+function unwatchForRender(node) {
+	var expando = node[EXPANDO_KEY] || {};
+	var proxy = expando.renderProxy;
+
+	if (proxy) {
+		helpers$1.each(ANIMATION_START_EVENTS, function(type) {
+			removeListener(node, type, proxy);
+		});
+
+		delete expando.renderProxy;
+	}
+
+	node.classList.remove(CSS_RENDER_MONITOR);
+}
+
+function addResizeListener(node, listener, chart) {
+	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
+
+	// Let''s keep track of this added resizer and thus avoid DOM query when removing it.
+	var resizer = expando.resizer = createResizer(throttled(function() {
+		if (expando.resizer) {
+			var container = chart.options.maintainAspectRatio && node.parentNode;
+			var w = container ? container.clientWidth : 0;
+			listener(createEvent(''resize'', chart));
+			if (container && container.clientWidth < w && chart.canvas) {
+				// If the container size shrank during chart resize, let''s assume
+				// scrollbar appeared. So we resize again with the scrollbar visible -
+				// effectively making chart smaller and the scrollbar hidden again.
+				// Because we are inside `throttled`, and currently `ticking`, scroll
+				// events are ignored during this whole 2 resize process.
+				// If we assumed wrong and something else happened, we are resizing
+				// twice in a frame (potential performance issue)
+				listener(createEvent(''resize'', chart));
+			}
+		}
+	}));
+
+	// The resizer needs to be attached to the node parent, so we first need to be
+	// sure that `node` is attached to the DOM before injecting the resizer element.
+	watchForRender(node, function() {
+		if (expando.resizer) {
+			var container = node.parentNode;
+			if (container && container !== resizer.parentNode) {
+				container.insertBefore(resizer, container.firstChild);
+			}
+
+			// The container size might have changed, let''s reset the resizer state.
+			resizer._reset();
+		}
+	});
+}
+
+function removeResizeListener(node) {
+	var expando = node[EXPANDO_KEY] || {};
+	var resizer = expando.resizer;
+
+	delete expando.resizer;
+	unwatchForRender(node);
+
+	if (resizer && resizer.parentNode) {
+		resizer.parentNode.removeChild(resizer);
+	}
+}
+
+function injectCSS(platform, css) {
+	// https://stackoverflow.com/q/3922139
+	var style = platform._style || document.createElement(''style'');
+	if (!platform._style) {
+		platform._style = style;
+		css = ''/* Chart.js */\n'' + css;
+		style.setAttribute(''type'', ''text/css'');
+		document.getElementsByTagName(''head'')[0].appendChild(style);
+	}
+
+	style.appendChild(document.createTextNode(css));
+}
+
+var platform_dom$2 = {
+	/**
+	 * When `true`, prevents the automatic injection of the stylesheet required to
+	 * correctly detect when the chart is added to the DOM and then resized. This
+	 * switch has been added to allow external stylesheet (`dist/Chart(.min)?.js`)
+	 * to be manually imported to make this library compatible with any CSP.
+	 * See https://github.com/chartjs/Chart.js/issues/5208
+	 */
+	disableCSSInjection: false,
+
+	/**
+	 * This property holds whether this platform is enabled for the current environment.
+	 * Currently used by platform.js to select the proper implementation.
+	 * @private
+	 */
+	_enabled: typeof window !== ''undefined'' && typeof document !== ''undefined'',
+
+	/**
+	 * @private
+	 */
+	_ensureLoaded: function() {
+		if (this._loaded) {
+			return;
+		}
+
+		this._loaded = true;
+
+		// https://github.com/chartjs/Chart.js/issues/5208
+		if (!this.disableCSSInjection) {
+			injectCSS(this, stylesheet);
+		}
+	},
+
+	acquireContext: function(item, config) {
+		if (typeof item === ''string'') {
+			item = document.getElementById(item);
+		} else if (item.length) {
+			// Support for array based queries (such as jQuery)
+			item = item[0];
+		}
+
+		if (item && item.canvas) {
+			// Support for any object associated to a canvas (including a context2d)
+			item = item.canvas;
+		}
+
+		// To prevent canvas fingerprinting, some add-ons undefine the getContext
+		// method, for example: https://github.com/kkapsner/CanvasBlocker
+		// https://github.com/chartjs/Chart.js/issues/2807
+		var context = item && item.getContext && item.getContext(''2d'');
+
+		// Load platform resources on first chart creation, to make possible to change
+		// platform options after importing the library (e.g. `disableCSSInjection`).
+		this._ensureLoaded();
+
+		// `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
+		// inside an iframe or when running in a protected environment. We could guess the
+		// types from their toString() value but let''s keep things flexible and assume it''s
+		// a sufficient condition if the item has a context2D which has item as `canvas`.
+		// https://github.com/chartjs/Chart.js/issues/3887
+		// https://github.com/chartjs/Chart.js/issues/4102
+		// https://github.com/chartjs/Chart.js/issues/4152
+		if (context && context.canvas === item) {
+			initCanvas(item, config);
+			return context;
+		}
+
+		return null;
+	},
+
+	releaseContext: function(context) {
+		var canvas = context.canvas;
+		if (!canvas[EXPANDO_KEY]) {
+			return;
+		}
+
+		var initial = canvas[EXPANDO_KEY].initial;
+		[''height'', ''width''].forEach(function(prop) {
+			var value = initial[prop];
+			if (helpers$1.isNullOrUndef(value)) {
+				canvas.removeAttribute(prop);
+			} else {
+				canvas.setAttribute(prop, value);
+			}
+		});
+
+		helpers$1.each(initial.style || {}, function(value, key) {
+			canvas.style[key] = value;
+		});
+
+		// The canvas render size might have been changed (and thus the state stack discarded),
+		// we can''t use save() and restore() to restore the initial state. So make sure that at
+		// least the canvas context is reset to the default state by setting the canvas width.
+		// https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
+		// eslint-disable-next-line no-self-assign
+		canvas.width = canvas.width;
+
+		delete canvas[EXPANDO_KEY];
+	},
+
+	addEventListener: function(chart, type, listener) {
+		var canvas = chart.canvas;
+		if (type === ''resize'') {
+			// Note: the resize event is not supported on all browsers.
+			addResizeListener(canvas, listener, chart);
+			return;
+		}
+
+		var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
+		var proxies = expando.proxies || (expando.proxies = {});
+		var proxy = proxies[chart.id + ''_'' + type] = function(event) {
+			listener(fromNativeEvent(event, chart));
+		};
+
+		addListener(canvas, type, proxy);
+	},
+
+	removeEventListener: function(chart, type, listener) {
+		var canvas = chart.canvas;
+		if (type === ''resize'') {
+			// Note: the resize event is not supported on all browsers.
+			removeResizeListener(canvas);
+			return;
+		}
+
+		var expando = listener[EXPANDO_KEY] || {};
+		var proxies = expando.proxies || {};
+		var proxy = proxies[chart.id + ''_'' + type];
+		if (!proxy) {
+			return;
+		}
+
+		removeListener(canvas, type, proxy);
+	}
+};
+
+// DEPRECATIONS
+
+/**
+ * Provided for backward compatibility, use EventTarget.addEventListener instead.
+ * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
+ * @function Chart.helpers.addEvent
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.addEvent = addListener;
+
+/**
+ * Provided for backward compatibility, use EventTarget.removeEventListener instead.
+ * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
+ * @function Chart.helpers.removeEvent
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.removeEvent = removeListener;
+
+// @TODO Make possible to select another platform at build time.
+var implementation = platform_dom$2._enabled ? platform_dom$2 : platform_basic;
+
+/**
+ * @namespace Chart.platform
+ * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
+ * @since 2.4.0
+ */
+var platform = helpers$1.extend({
+	/**
+	 * @since 2.7.0
+	 */
+	initialize: function() {},
+
+	/**
+	 * Called at chart construction time, returns a context2d instance implementing
+	 * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
+	 * @param {*} item - The native item from which to acquire context (platform specific)
+	 * @param {object} options - The chart options
+	 * @returns {CanvasRenderingContext2D} context2d instance
+	 */
+	acquireContext: function() {},
+
+	/**
+	 * Called at chart destruction time, releases any resources associated to the context
+	 * previously returned by the acquireContext() method.
+	 * @param {CanvasRenderingContext2D} context - The context2d instance
+	 * @returns {boolean} true if the method succeeded, else false
+	 */
+	releaseContext: function() {},
+
+	/**
+	 * Registers the specified listener on the given chart.
+	 * @param {Chart} chart - Chart from which to listen for event
+	 * @param {string} type - The ({@link IEvent}) type to listen for
+	 * @param {function} listener - Receives a notification (an object that implements
+	 * the {@link IEvent} interface) when an event of the specified type occurs.
+	 */
+	addEventListener: function() {},
+
+	/**
+	 * Removes the specified listener previously registered with addEventListener.
+	 * @param {Chart} chart - Chart from which to remove the listener
+	 * @param {string} type - The ({@link IEvent}) type to remove
+	 * @param {function} listener - The listener function to remove from the event target.
+	 */
+	removeEventListener: function() {}
+
+}, implementation);
+
+core_defaults._set(''global'', {
+	plugins: {}
+});
+
+/**
+ * The plugin service singleton
+ * @namespace Chart.plugins
+ * @since 2.1.0
+ */
+var core_plugins = {
+	/**
+	 * Globally registered plugins.
+	 * @private
+	 */
+	_plugins: [],
+
+	/**
+	 * This identifier is used to invalidate the descriptors cache attached to each chart
+	 * when a global plugin is registered or unregistered. In this case, the cache ID is
+	 * incremented and descriptors are regenerated during following API calls.
+	 * @private
+	 */
+	_cacheId: 0,
+
+	/**
+	 * Registers the given plugin(s) if not already registered.
+	 * @param {IPlugin[]|IPlugin} plugins plugin instance(s).
+	 */
+	register: function(plugins) {
+		var p = this._plugins;
+		([]).concat(plugins).forEach(function(plugin) {
+			if (p.indexOf(plugin) === -1) {
+				p.push(plugin);
+			}
+		});
+
+		this._cacheId++;
+	},
+
+	/**
+	 * Unregisters the given plugin(s) only if registered.
+	 * @param {IPlugin[]|IPlugin} plugins plugin instance(s).
+	 */
+	unregister: function(plugins) {
+		var p = this._plugins;
+		([]).concat(plugins).forEach(function(plugin) {
+			var idx = p.indexOf(plugin);
+			if (idx !== -1) {
+				p.splice(idx, 1);
+			}
+		});
+
+		this._cacheId++;
+	},
+
+	/**
+	 * Remove all registered plugins.
+	 * @since 2.1.5
+	 */
+	clear: function() {
+		this._plugins = [];
+		this._cacheId++;
+	},
+
+	/**
+	 * Returns the number of registered plugins?
+	 * @returns {number}
+	 * @since 2.1.5
+	 */
+	count: function() {
+		return this._plugins.length;
+	},
+
+	/**
+	 * Returns all registered plugin instances.
+	 * @returns {IPlugin[]} array of plugin objects.
+	 * @since 2.1.5
+	 */
+	getAll: function() {
+		return this._plugins;
+	},
+
+	/**
+	 * Calls enabled plugins for `chart` on the specified hook and with the given args.
+	 * This method immediately returns as soon as a plugin explicitly returns false. The
+	 * returned value can be used, for instance, to interrupt the current action.
+	 * @param {Chart} chart - The chart instance for which plugins should be called.
+	 * @param {string} hook - The name of the plugin method to call (e.g. ''beforeUpdate'').
+	 * @param {Array} [args] - Extra arguments to apply to the hook call.
+	 * @returns {boolean} false if any of the plugins return false, else returns true.
+	 */
+	notify: function(chart, hook, args) {
+		var descriptors = this.descriptors(chart);
+		var ilen = descriptors.length;
+		var i, descriptor, plugin, params, method;
+
+		for (i = 0; i < ilen; ++i) {
+			descriptor = descriptors[i];
+			plugin = descriptor.plugin;
+			method = plugin[hook];
+			if (typeof method === ''function'') {
+				params = [chart].concat(args || []);
+				params.push(descriptor.options);
+				if (method.apply(plugin, params) === false) {
+					return false;
+				}
+			}
+		}
+
+		return true;
+	},
+
+	/**
+	 * Returns descriptors of enabled plugins for the given chart.
+	 * @returns {object[]} [{ plugin, options }]
+	 * @private
+	 */
+	descriptors: function(chart) {
+		var cache = chart.$plugins || (chart.$plugins = {});
+		if (cache.id === this._cacheId) {
+			return cache.descriptors;
+		}
+
+		var plugins = [];
+		var descriptors = [];
+		var config = (chart && chart.config) || {};
+		var options = (config.options && config.options.plugins) || {};
+
+		this._plugins.concat(config.plugins || []).forEach(function(plugin) {
+			var idx = plugins.indexOf(plugin);
+			if (idx !== -1) {
+				return;
+			}
+
+			var id = plugin.id;
+			var opts = options[id];
+			if (opts === false) {
+				return;
+			}
+
+			if (opts === true) {
+				opts = helpers$1.clone(core_defaults.global.plugins[id]);
+			}
+
+			plugins.push(plugin);
+			descriptors.push({
+				plugin: plugin,
+				options: opts || {}
+			});
+		});
+
+		cache.descriptors = descriptors;
+		cache.id = this._cacheId;
+		return descriptors;
+	},
+
+	/**
+	 * Invalidates cache for the given chart: descriptors hold a reference on plugin option,
+	 * but in some cases, this reference can be changed by the user when updating options.
+	 * https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
+	 * @private
+	 */
+	_invalidate: function(chart) {
+		delete chart.$plugins;
+	}
+};
+
+var core_scaleService = {
+	// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
+	// use the new chart options to grab the correct scale
+	constructors: {},
+	// Use a registration function so that we can move to an ES6 map when we no longer need to support
+	// old browsers
+
+	// Scale config defaults
+	defaults: {},
+	registerScaleType: function(type, scaleConstructor, scaleDefaults) {
+		this.constructors[type] = scaleConstructor;
+		this.defaults[type] = helpers$1.clone(scaleDefaults);
+	},
+	getScaleConstructor: function(type) {
+		return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
+	},
+	getScaleDefaults: function(type) {
+		// Return the scale defaults merged with the global settings so that we always use the latest ones
+		return this.defaults.hasOwnProperty(type) ? helpers$1.merge({}, [core_defaults.scale, this.defaults[type]]) : {};
+	},
+	updateScaleDefaults: function(type, additions) {
+		var me = this;
+		if (me.defaults.hasOwnProperty(type)) {
+			me.defaults[type] = helpers$1.extend(me.defaults[type], additions);
+		}
+	},
+	addScalesToLayout: function(chart) {
+		// Adds each scale to the chart.boxes array to be sized accordingly
+		helpers$1.each(chart.scales, function(scale) {
+			// Set ILayoutItem parameters for backwards compatibility
+			scale.fullWidth = scale.options.fullWidth;
+			scale.position = scale.options.position;
+			scale.weight = scale.options.weight;
+			core_layouts.addBox(chart, scale);
+		});
+	}
+};
+
+var valueOrDefault$7 = helpers$1.valueOrDefault;
+
+core_defaults._set(''global'', {
+	tooltips: {
+		enabled: true,
+		custom: null,
+		mode: ''nearest'',
+		position: ''average'',
+		intersect: true,
+		backgroundColor: ''rgba(0,0,0,0.8)'',
+		titleFontStyle: ''bold'',
+		titleSpacing: 2,
+		titleMarginBottom: 6,
+		titleFontColor: ''#fff'',
+		titleAlign: ''left'',
+		bodySpacing: 2,
+		bodyFontColor: ''#fff'',
+		bodyAlign: ''left'',
+		footerFontStyle: ''bold'',
+		footerSpacing: 2,
+		footerMarginTop: 6,
+		footerFontColor: ''#fff'',
+		footerAlign: ''left'',
+		yPadding: 6,
+		xPadding: 6,
+		caretPadding: 2,
+		caretSize: 5,
+		cornerRadius: 6,
+		multiKeyBackground: ''#fff'',
+		displayColors: true,
+		borderColor: ''rgba(0,0,0,0)'',
+		borderWidth: 0,
+		callbacks: {
+			// Args are: (tooltipItems, data)
+			beforeTitle: helpers$1.noop,
+			title: function(tooltipItems, data) {
+				var title = '''';
+				var labels = data.labels;
+				var labelCount = labels ? labels.length : 0;
+
+				if (tooltipItems.length > 0) {
+					var item = tooltipItems[0];
+					if (item.label) {
+						title = item.label;
+					} else if (item.xLabel) {
+						title = item.xLabel;
+					} else if (labelCount > 0 && item.index < labelCount) {
+						title = labels[item.index];
+					}
+				}
+
+				return title;
 			},
-			easeInBack: function (t) {
-				var s = 1.70158;
-				return 1 * (t /= 1) * t * ((s + 1) * t - s);
+			afterTitle: helpers$1.noop,
+
+			// Args are: (tooltipItems, data)
+			beforeBody: helpers$1.noop,
+
+			// Args are: (tooltipItem, data)
+			beforeLabel: helpers$1.noop,
+			label: function(tooltipItem, data) {
+				var label = data.datasets[tooltipItem.datasetIndex].label || '''';
+
+				if (label) {
+					label += '': '';
+				}
+				if (!helpers$1.isNullOrUndef(tooltipItem.value)) {
+					label += tooltipItem.value;
+				} else {
+					label += tooltipItem.yLabel;
+				}
+				return label;
 			},
-			easeOutBack: function (t) {
-				var s = 1.70158;
-				return 1 * ((t = t / 1 - 1) * t * ((s + 1) * t + s) + 1);
+			labelColor: function(tooltipItem, chart) {
+				var meta = chart.getDatasetMeta(tooltipItem.datasetIndex);
+				var activeElement = meta.data[tooltipItem.index];
+				var view = activeElement._view;
+				return {
+					borderColor: view.borderColor,
+					backgroundColor: view.backgroundColor
+				};
 			},
-			easeInOutBack: function (t) {
-				var s = 1.70158;
-				if ((t /= 1 / 2) < 1) return 1 / 2 * (t * t * (((s *= (1.525)) + 1) * t - s));
-				return 1 / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
+			labelTextColor: function() {
+				return this._options.bodyFontColor;
 			},
-			easeInBounce: function (t) {
-				return 1 - easingEffects.easeOutBounce(1 - t);
+			afterLabel: helpers$1.noop,
+
+			// Args are: (tooltipItems, data)
+			afterBody: helpers$1.noop,
+
+			// Args are: (tooltipItems, data)
+			beforeFooter: helpers$1.noop,
+			footer: helpers$1.noop,
+			afterFooter: helpers$1.noop
+		}
+	}
+});
+
+var positioners = {
+	/**
+	 * Average mode places the tooltip at the average position of the elements shown
+	 * @function Chart.Tooltip.positioners.average
+	 * @param elements {ChartElement[]} the elements being displayed in the tooltip
+	 * @returns {object} tooltip position
+	 */
+	average: function(elements) {
+		if (!elements.length) {
+			return false;
+		}
+
+		var i, len;
+		var x = 0;
+		var y = 0;
+		var count = 0;
+
+		for (i = 0, len = elements.length; i < len; ++i) {
+			var el = elements[i];
+			if (el && el.hasValue()) {
+				var pos = el.tooltipPosition();
+				x += pos.x;
+				y += pos.y;
+				++count;
+			}
+		}
+
+		return {
+			x: x / count,
+			y: y / count
+		};
+	},
+
+	/**
+	 * Gets the tooltip position nearest of the item nearest to the event position
+	 * @function Chart.Tooltip.positioners.nearest
+	 * @param elements {Chart.Element[]} the tooltip elements
+	 * @param eventPosition {object} the position of the event in canvas coordinates
+	 * @returns {object} the tooltip position
+	 */
+	nearest: function(elements, eventPosition) {
+		var x = eventPosition.x;
+		var y = eventPosition.y;
+		var minDistance = Number.POSITIVE_INFINITY;
+		var i, len, nearestElement;
+
+		for (i = 0, len = elements.length; i < len; ++i) {
+			var el = elements[i];
+			if (el && el.hasValue()) {
+				var center = el.getCenterPoint();
+				var d = helpers$1.distanceBetweenPoints(eventPosition, center);
+
+				if (d < minDistance) {
+					minDistance = d;
+					nearestElement = el;
+				}
+			}
+		}
+
+		if (nearestElement) {
+			var tp = nearestElement.tooltipPosition();
+			x = tp.x;
+			y = tp.y;
+		}
+
+		return {
+			x: x,
+			y: y
+		};
+	}
+};
+
+// Helper to push or concat based on if the 2nd parameter is an array or not
+function pushOrConcat(base, toPush) {
+	if (toPush) {
+		if (helpers$1.isArray(toPush)) {
+			// base = base.concat(toPush);
+			Array.prototype.push.apply(base, toPush);
+		} else {
+			base.push(toPush);
+		}
+	}
+
+	return base;
+}
+
+/**
+ * Returns array of strings split by newline
+ * @param {string} value - The value to split by newline.
+ * @returns {string[]} value if newline present - Returned from String split() method
+ * @function
+ */
+function splitNewlines(str) {
+	if ((typeof str === ''string'' || str instanceof String) && str.indexOf(''\n'') > -1) {
+		return str.split(''\n'');
+	}
+	return str;
+}
+
+
+/**
+ * Private helper to create a tooltip item model
+ * @param element - the chart element (point, arc, bar) to create the tooltip item for
+ * @return new tooltip item
+ */
+function createTooltipItem(element) {
+	var xScale = element._xScale;
+	var yScale = element._yScale || element._scale; // handle radar || polarArea charts
+	var index = element._index;
+	var datasetIndex = element._datasetIndex;
+	var controller = element._chart.getDatasetMeta(datasetIndex).controller;
+	var indexScale = controller._getIndexScale();
+	var valueScale = controller._getValueScale();
+
+	return {
+		xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '''',
+		yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '''',
+		label: indexScale ? '''' + indexScale.getLabelForIndex(index, datasetIndex) : '''',
+		value: valueScale ? '''' + valueScale.getLabelForIndex(index, datasetIndex) : '''',
+		index: index,
+		datasetIndex: datasetIndex,
+		x: element._model.x,
+		y: element._model.y
+	};
+}
+
+/**
+ * Helper to get the reset model for the tooltip
+ * @param tooltipOpts {object} the tooltip options
+ */
+function getBaseModel(tooltipOpts) {
+	var globalDefaults = core_defaults.global;
+
+	return {
+		// Positioning
+		xPadding: tooltipOpts.xPadding,
+		yPadding: tooltipOpts.yPadding,
+		xAlign: tooltipOpts.xAlign,
+		yAlign: tooltipOpts.yAlign,
+
+		// Body
+		bodyFontColor: tooltipOpts.bodyFontColor,
+		_bodyFontFamily: valueOrDefault$7(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
+		_bodyFontStyle: valueOrDefault$7(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
+		_bodyAlign: tooltipOpts.bodyAlign,
+		bodyFontSize: valueOrDefault$7(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
+		bodySpacing: tooltipOpts.bodySpacing,
+
+		// Title
+		titleFontColor: tooltipOpts.titleFontColor,
+		_titleFontFamily: valueOrDefault$7(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
+		_titleFontStyle: valueOrDefault$7(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
+		titleFontSize: valueOrDefault$7(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
+		_titleAlign: tooltipOpts.titleAlign,
+		titleSpacing: tooltipOpts.titleSpacing,
+		titleMarginBottom: tooltipOpts.titleMarginBottom,
+
+		// Footer
+		footerFontColor: tooltipOpts.footerFontColor,
+		_footerFontFamily: valueOrDefault$7(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
+		_footerFontStyle: valueOrDefault$7(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
+		footerFontSize: valueOrDefault$7(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
+		_footerAlign: tooltipOpts.footerAlign,
+		footerSpacing: tooltipOpts.footerSpacing,
+		footerMarginTop: tooltipOpts.footerMarginTop,
+
+		// Appearance
+		caretSize: tooltipOpts.caretSize,
+		cornerRadius: tooltipOpts.cornerRadius,
+		backgroundColor: tooltipOpts.backgroundColor,
+		opacity: 0,
+		legendColorBackground: tooltipOpts.multiKeyBackground,
+		displayColors: tooltipOpts.displayColors,
+		borderColor: tooltipOpts.borderColor,
+		borderWidth: tooltipOpts.borderWidth
+	};
+}
+
+/**
+ * Get the size of the tooltip
+ */
+function getTooltipSize(tooltip, model) {
+	var ctx = tooltip._chart.ctx;
+
+	var height = model.yPadding * 2; // Tooltip Padding
+	var width = 0;
+
+	// Count of all lines in the body
+	var body = model.body;
+	var combinedBodyLength = body.reduce(function(count, bodyItem) {
+		return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length;
+	}, 0);
+	combinedBodyLength += model.beforeBody.length + model.afterBody.length;
+
+	var titleLineCount = model.title.length;
+	var footerLineCount = model.footer.length;
+	var titleFontSize = model.titleFontSize;
+	var bodyFontSize = model.bodyFontSize;
+	var footerFontSize = model.footerFontSize;
+
+	height += titleLineCount * titleFontSize; // Title Lines
+	height += titleLineCount ? (titleLineCount - 1) * model.titleSpacing : 0; // Title Line Spacing
+	height += titleLineCount ? model.titleMarginBottom : 0; // Title''s bottom Margin
+	height += combinedBodyLength * bodyFontSize; // Body Lines
+	height += combinedBodyLength ? (combinedBodyLength - 1) * model.bodySpacing : 0; // Body Line Spacing
+	height += footerLineCount ? model.footerMarginTop : 0; // Footer Margin
+	height += footerLineCount * (footerFontSize); // Footer Lines
+	height += footerLineCount ? (footerLineCount - 1) * model.footerSpacing : 0; // Footer Line Spacing
+
+	// Title width
+	var widthPadding = 0;
+	var maxLineWidth = function(line) {
+		width = Math.max(width, ctx.measureText(line).width + widthPadding);
+	};
+
+	ctx.font = helpers$1.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
+	helpers$1.each(model.title, maxLineWidth);
+
+	// Body width
+	ctx.font = helpers$1.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
+	helpers$1.each(model.beforeBody.concat(model.afterBody), maxLineWidth);
+
+	// Body lines may include some extra width due to the color box
+	widthPadding = model.displayColors ? (bodyFontSize + 2) : 0;
+	helpers$1.each(body, function(bodyItem) {
+		helpers$1.each(bodyItem.before, maxLineWidth);
+		helpers$1.each(bodyItem.lines, maxLineWidth);
+		helpers$1.each(bodyItem.after, maxLineWidth);
+	});
+
+	// Reset back to 0
+	widthPadding = 0;
+
+	// Footer width
+	ctx.font = helpers$1.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
+	helpers$1.each(model.footer, maxLineWidth);
+
+	// Add padding
+	width += 2 * model.xPadding;
+
+	return {
+		width: width,
+		height: height
+	};
+}
+
+/**
+ * Helper to get the alignment of a tooltip given the size
+ */
+function determineAlignment(tooltip, size) {
+	var model = tooltip._model;
+	var chart = tooltip._chart;
+	var chartArea = tooltip._chart.chartArea;
+	var xAlign = ''center'';
+	var yAlign = ''center'';
+
+	if (model.y < size.height) {
+		yAlign = ''top'';
+	} else if (model.y > (chart.height - size.height)) {
+		yAlign = ''bottom'';
+	}
+
+	var lf, rf; // functions to determine left, right alignment
+	var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart
+	var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges
+	var midX = (chartArea.left + chartArea.right) / 2;
+	var midY = (chartArea.top + chartArea.bottom) / 2;
+
+	if (yAlign === ''center'') {
+		lf = function(x) {
+			return x <= midX;
+		};
+		rf = function(x) {
+			return x > midX;
+		};
+	} else {
+		lf = function(x) {
+			return x <= (size.width / 2);
+		};
+		rf = function(x) {
+			return x >= (chart.width - (size.width / 2));
+		};
+	}
+
+	olf = function(x) {
+		return x + size.width + model.caretSize + model.caretPadding > chart.width;
+	};
+	orf = function(x) {
+		return x - size.width - model.caretSize - model.caretPadding < 0;
+	};
+	yf = function(y) {
+		return y <= midY ? ''top'' : ''bottom'';
+	};
+
+	if (lf(model.x)) {
+		xAlign = ''left'';
+
+		// Is tooltip too wide and goes over the right side of the chart.?
+		if (olf(model.x)) {
+			xAlign = ''center'';
+			yAlign = yf(model.y);
+		}
+	} else if (rf(model.x)) {
+		xAlign = ''right'';
+
+		// Is tooltip too wide and goes outside left edge of canvas?
+		if (orf(model.x)) {
+			xAlign = ''center'';
+			yAlign = yf(model.y);
+		}
+	}
+
+	var opts = tooltip._options;
+	return {
+		xAlign: opts.xAlign ? opts.xAlign : xAlign,
+		yAlign: opts.yAlign ? opts.yAlign : yAlign
+	};
+}
+
+/**
+ * Helper to get the location a tooltip needs to be placed at given the initial position (via the vm) and the size and alignment
+ */
+function getBackgroundPoint(vm, size, alignment, chart) {
+	// Background Position
+	var x = vm.x;
+	var y = vm.y;
+
+	var caretSize = vm.caretSize;
+	var caretPadding = vm.caretPadding;
+	var cornerRadius = vm.cornerRadius;
+	var xAlign = alignment.xAlign;
+	var yAlign = alignment.yAlign;
+	var paddingAndSize = caretSize + caretPadding;
+	var radiusAndPadding = cornerRadius + caretPadding;
+
+	if (xAlign === ''right'') {
+		x -= size.width;
+	} else if (xAlign === ''center'') {
+		x -= (size.width / 2);
+		if (x + size.width > chart.width) {
+			x = chart.width - size.width;
+		}
+		if (x < 0) {
+			x = 0;
+		}
+	}
+
+	if (yAlign === ''top'') {
+		y += paddingAndSize;
+	} else if (yAlign === ''bottom'') {
+		y -= size.height + paddingAndSize;
+	} else {
+		y -= (size.height / 2);
+	}
+
+	if (yAlign === ''center'') {
+		if (xAlign === ''left'') {
+			x += paddingAndSize;
+		} else if (xAlign === ''right'') {
+			x -= paddingAndSize;
+		}
+	} else if (xAlign === ''left'') {
+		x -= radiusAndPadding;
+	} else if (xAlign === ''right'') {
+		x += radiusAndPadding;
+	}
+
+	return {
+		x: x,
+		y: y
+	};
+}
+
+function getAlignedX(vm, align) {
+	return align === ''center''
+		? vm.x + vm.width / 2
+		: align === ''right''
+			? vm.x + vm.width - vm.xPadding
+			: vm.x + vm.xPadding;
+}
+
+/**
+ * Helper to build before and after body lines
+ */
+function getBeforeAfterBodyLines(callback) {
+	return pushOrConcat([], splitNewlines(callback));
+}
+
+var exports$3 = core_element.extend({
+	initialize: function() {
+		this._model = getBaseModel(this._options);
+		this._lastActive = [];
+	},
+
+	// Get the title
+	// Args are: (tooltipItem, data)
+	getTitle: function() {
+		var me = this;
+		var opts = me._options;
+		var callbacks = opts.callbacks;
+
+		var beforeTitle = callbacks.beforeTitle.apply(me, arguments);
+		var title = callbacks.title.apply(me, arguments);
+		var afterTitle = callbacks.afterTitle.apply(me, arguments);
+
+		var lines = [];
+		lines = pushOrConcat(lines, splitNewlines(beforeTitle));
+		lines = pushOrConcat(lines, splitNewlines(title));
+		lines = pushOrConcat(lines, splitNewlines(afterTitle));
+
+		return lines;
+	},
+
+	// Args are: (tooltipItem, data)
+	getBeforeBody: function() {
+		return getBeforeAfterBodyLines(this._options.callbacks.beforeBody.apply(this, arguments));
+	},
+
+	// Args are: (tooltipItem, data)
+	getBody: function(tooltipItems, data) {
+		var me = this;
+		var callbacks = me._options.callbacks;
+		var bodyItems = [];
+
+		helpers$1.each(tooltipItems, function(tooltipItem) {
+			var bodyItem = {
+				before: [],
+				lines: [],
+				after: []
+			};
+			pushOrConcat(bodyItem.before, splitNewlines(callbacks.beforeLabel.call(me, tooltipItem, data)));
+			pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data));
+			pushOrConcat(bodyItem.after, splitNewlines(callbacks.afterLabel.call(me, tooltipItem, data)));
+
+			bodyItems.push(bodyItem);
+		});
+
+		return bodyItems;
+	},
+
+	// Args are: (tooltipItem, data)
+	getAfterBody: function() {
+		return getBeforeAfterBodyLines(this._options.callbacks.afterBody.apply(this, arguments));
+	},
+
+	// Get the footer and beforeFooter and afterFooter lines
+	// Args are: (tooltipItem, data)
+	getFooter: function() {
+		var me = this;
+		var callbacks = me._options.callbacks;
+
+		var beforeFooter = callbacks.beforeFooter.apply(me, arguments);
+		var footer = callbacks.footer.apply(me, arguments);
+		var afterFooter = callbacks.afterFooter.apply(me, arguments);
+
+		var lines = [];
+		lines = pushOrConcat(lines, splitNewlines(beforeFooter));
+		lines = pushOrConcat(lines, splitNewlines(footer));
+		lines = pushOrConcat(lines, splitNewlines(afterFooter));
+
+		return lines;
+	},
+
+	update: function(changed) {
+		var me = this;
+		var opts = me._options;
+
+		// Need to regenerate the model because its faster than using extend and it is necessary due to the optimization in Chart.Element.transition
+		// that does _view = _model if ease === 1. This causes the 2nd tooltip update to set properties in both the view and model at the same time
+		// which breaks any animations.
+		var existingModel = me._model;
+		var model = me._model = getBaseModel(opts);
+		var active = me._active;
+
+		var data = me._data;
+
+		// In the case where active.length === 0 we need to keep these at existing values for good animations
+		var alignment = {
+			xAlign: existingModel.xAlign,
+			yAlign: existingModel.yAlign
+		};
+		var backgroundPoint = {
+			x: existingModel.x,
+			y: existingModel.y
+		};
+		var tooltipSize = {
+			width: existingModel.width,
+			height: existingModel.height
+		};
+		var tooltipPosition = {
+			x: existingModel.caretX,
+			y: existingModel.caretY
+		};
+
+		var i, len;
+
+		if (active.length) {
+			model.opacity = 1;
+
+			var labelColors = [];
+			var labelTextColors = [];
+			tooltipPosition = positioners[opts.position].call(me, active, me._eventPosition);
+
+			var tooltipItems = [];
+			for (i = 0, len = active.length; i < len; ++i) {
+				tooltipItems.push(createTooltipItem(active[i]));
+			}
+
+			// If the user provided a filter function, use it to modify the tooltip items
+			if (opts.filter) {
+				tooltipItems = tooltipItems.filter(function(a) {
+					return opts.filter(a, data);
+				});
+			}
+
+			// If the user provided a sorting function, use it to modify the tooltip items
+			if (opts.itemSort) {
+				tooltipItems = tooltipItems.sort(function(a, b) {
+					return opts.itemSort(a, b, data);
+				});
+			}
+
+			// Determine colors for boxes
+			helpers$1.each(tooltipItems, function(tooltipItem) {
+				labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart));
+				labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart));
+			});
+
+
+			// Build the Text Lines
+			model.title = me.getTitle(tooltipItems, data);
+			model.beforeBody = me.getBeforeBody(tooltipItems, data);
+			model.body = me.getBody(tooltipItems, data);
+			model.afterBody = me.getAfterBody(tooltipItems, data);
+			model.footer = me.getFooter(tooltipItems, data);
+
+			// Initial positioning and colors
+			model.x = tooltipPosition.x;
+			model.y = tooltipPosition.y;
+			model.caretPadding = opts.caretPadding;
+			model.labelColors = labelColors;
+			model.labelTextColors = labelTextColors;
+
+			// data points
+			model.dataPoints = tooltipItems;
+
+			// We need to determine alignment of the tooltip
+			tooltipSize = getTooltipSize(this, model);
+			alignment = determineAlignment(this, tooltipSize);
+			// Final Size and Position
+			backgroundPoint = getBackgroundPoint(model, tooltipSize, alignment, me._chart);
+		} else {
+			model.opacity = 0;
+		}
+
+		model.xAlign = alignment.xAlign;
+		model.yAlign = alignment.yAlign;
+		model.x = backgroundPoint.x;
+		model.y = backgroundPoint.y;
+		model.width = tooltipSize.width;
+		model.height = tooltipSize.height;
+
+		// Point where the caret on the tooltip points to
+		model.caretX = tooltipPosition.x;
+		model.caretY = tooltipPosition.y;
+
+		me._model = model;
+
+		if (changed && opts.custom) {
+			opts.custom.call(me, model);
+		}
+
+		return me;
+	},
+
+	drawCaret: function(tooltipPoint, size) {
+		var ctx = this._chart.ctx;
+		var vm = this._view;
+		var caretPosition = this.getCaretPosition(tooltipPoint, size, vm);
+
+		ctx.lineTo(caretPosition.x1, caretPosition.y1);
+		ctx.lineTo(caretPosition.x2, caretPosition.y2);
+		ctx.lineTo(caretPosition.x3, caretPosition.y3);
+	},
+	getCaretPosition: function(tooltipPoint, size, vm) {
+		var x1, x2, x3, y1, y2, y3;
+		var caretSize = vm.caretSize;
+		var cornerRadius = vm.cornerRadius;
+		var xAlign = vm.xAlign;
+		var yAlign = vm.yAlign;
+		var ptX = tooltipPoint.x;
+		var ptY = tooltipPoint.y;
+		var width = size.width;
+		var height = size.height;
+
+		if (yAlign === ''center'') {
+			y2 = ptY + (height / 2);
+
+			if (xAlign === ''left'') {
+				x1 = ptX;
+				x2 = x1 - caretSize;
+				x3 = x1;
+
+				y1 = y2 + caretSize;
+				y3 = y2 - caretSize;
+			} else {
+				x1 = ptX + width;
+				x2 = x1 + caretSize;
+				x3 = x1;
+
+				y1 = y2 - caretSize;
+				y3 = y2 + caretSize;
+			}
+		} else {
+			if (xAlign === ''left'') {
+				x2 = ptX + cornerRadius + (caretSize);
+				x1 = x2 - caretSize;
+				x3 = x2 + caretSize;
+			} else if (xAlign === ''right'') {
+				x2 = ptX + width - cornerRadius - caretSize;
+				x1 = x2 - caretSize;
+				x3 = x2 + caretSize;
+			} else {
+				x2 = vm.caretX;
+				x1 = x2 - caretSize;
+				x3 = x2 + caretSize;
+			}
+			if (yAlign === ''top'') {
+				y1 = ptY;
+				y2 = y1 - caretSize;
+				y3 = y1;
+			} else {
+				y1 = ptY + height;
+				y2 = y1 + caretSize;
+				y3 = y1;
+				// invert drawing order
+				var tmp = x3;
+				x3 = x1;
+				x1 = tmp;
+			}
+		}
+		return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3};
+	},
+
+	drawTitle: function(pt, vm, ctx) {
+		var title = vm.title;
+
+		if (title.length) {
+			pt.x = getAlignedX(vm, vm._titleAlign);
+
+			ctx.textAlign = vm._titleAlign;
+			ctx.textBaseline = ''top'';
+
+			var titleFontSize = vm.titleFontSize;
+			var titleSpacing = vm.titleSpacing;
+
+			ctx.fillStyle = vm.titleFontColor;
+			ctx.font = helpers$1.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);
+
+			var i, len;
+			for (i = 0, len = title.length; i < len; ++i) {
+				ctx.fillText(title[i], pt.x, pt.y);
+				pt.y += titleFontSize + titleSpacing; // Line Height and spacing
+
+				if (i + 1 === title.length) {
+					pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing
+				}
+			}
+		}
+	},
+
+	drawBody: function(pt, vm, ctx) {
+		var bodyFontSize = vm.bodyFontSize;
+		var bodySpacing = vm.bodySpacing;
+		var bodyAlign = vm._bodyAlign;
+		var body = vm.body;
+		var drawColorBoxes = vm.displayColors;
+		var labelColors = vm.labelColors;
+		var xLinePadding = 0;
+		var colorX = drawColorBoxes ? getAlignedX(vm, ''left'') : 0;
+		var textColor;
+
+		ctx.textAlign = bodyAlign;
+		ctx.textBaseline = ''top'';
+		ctx.font = helpers$1.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);
+
+		pt.x = getAlignedX(vm, bodyAlign);
+
+		// Before Body
+		var fillLineOfText = function(line) {
+			ctx.fillText(line, pt.x + xLinePadding, pt.y);
+			pt.y += bodyFontSize + bodySpacing;
+		};
+
+		// Before body lines
+		ctx.fillStyle = vm.bodyFontColor;
+		helpers$1.each(vm.beforeBody, fillLineOfText);
+
+		xLinePadding = drawColorBoxes && bodyAlign !== ''right''
+			? bodyAlign === ''center'' ? (bodyFontSize / 2 + 1) : (bodyFontSize + 2)
+			: 0;
+
+		// Draw body lines now
+		helpers$1.each(body, function(bodyItem, i) {
+			textColor = vm.labelTextColors[i];
+			ctx.fillStyle = textColor;
+			helpers$1.each(bodyItem.before, fillLineOfText);
+
+			helpers$1.each(bodyItem.lines, function(line) {
+				// Draw Legend-like boxes if needed
+				if (drawColorBoxes) {
+					// Fill a white rect so that colours merge nicely if the opacity is < 1
+					ctx.fillStyle = vm.legendColorBackground;
+					ctx.fillRect(colorX, pt.y, bodyFontSize, bodyFontSize);
+
+					// Border
+					ctx.lineWidth = 1;
+					ctx.strokeStyle = labelColors[i].borderColor;
+					ctx.strokeRect(colorX, pt.y, bodyFontSize, bodyFontSize);
+
+					// Inner square
+					ctx.fillStyle = labelColors[i].backgroundColor;
+					ctx.fillRect(colorX + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
+					ctx.fillStyle = textColor;
+				}
+
+				fillLineOfText(line);
+			});
+
+			helpers$1.each(bodyItem.after, fillLineOfText);
+		});
+
+		// Reset back to 0 for after body
+		xLinePadding = 0;
+
+		// After body lines
+		helpers$1.each(vm.afterBody, fillLineOfText);
+		pt.y -= bodySpacing; // Remove last body spacing
+	},
+
+	drawFooter: function(pt, vm, ctx) {
+		var footer = vm.footer;
+
+		if (footer.length) {
+			pt.x = getAlignedX(vm, vm._footerAlign);
+			pt.y += vm.footerMarginTop;
+
+			ctx.textAlign = vm._footerAlign;
+			ctx.textBaseline = ''top'';
+
+			ctx.fillStyle = vm.footerFontColor;
+			ctx.font = helpers$1.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);
+
+			helpers$1.each(footer, function(line) {
+				ctx.fillText(line, pt.x, pt.y);
+				pt.y += vm.footerFontSize + vm.footerSpacing;
+			});
+		}
+	},
+
+	drawBackground: function(pt, vm, ctx, tooltipSize) {
+		ctx.fillStyle = vm.backgroundColor;
+		ctx.strokeStyle = vm.borderColor;
+		ctx.lineWidth = vm.borderWidth;
+		var xAlign = vm.xAlign;
+		var yAlign = vm.yAlign;
+		var x = pt.x;
+		var y = pt.y;
+		var width = tooltipSize.width;
+		var height = tooltipSize.height;
+		var radius = vm.cornerRadius;
+
+		ctx.beginPath();
+		ctx.moveTo(x + radius, y);
+		if (yAlign === ''top'') {
+			this.drawCaret(pt, tooltipSize);
+		}
+		ctx.lineTo(x + width - radius, y);
+		ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
+		if (yAlign === ''center'' && xAlign === ''right'') {
+			this.drawCaret(pt, tooltipSize);
+		}
+		ctx.lineTo(x + width, y + height - radius);
+		ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
+		if (yAlign === ''bottom'') {
+			this.drawCaret(pt, tooltipSize);
+		}
+		ctx.lineTo(x + radius, y + height);
+		ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
+		if (yAlign === ''center'' && xAlign === ''left'') {
+			this.drawCaret(pt, tooltipSize);
+		}
+		ctx.lineTo(x, y + radius);
+		ctx.quadraticCurveTo(x, y, x + radius, y);
+		ctx.closePath();
+
+		ctx.fill();
+
+		if (vm.borderWidth > 0) {
+			ctx.stroke();
+		}
+	},
+
+	draw: function() {
+		var ctx = this._chart.ctx;
+		var vm = this._view;
+
+		if (vm.opacity === 0) {
+			return;
+		}
+
+		var tooltipSize = {
+			width: vm.width,
+			height: vm.height
+		};
+		var pt = {
+			x: vm.x,
+			y: vm.y
+		};
+
+		// IE11/Edge does not like very small opacities, so snap to 0
+		var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity;
+
+		// Truthy/falsey value for empty tooltip
+		var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length;
+
+		if (this._options.enabled && hasTooltipContent) {
+			ctx.save();
+			ctx.globalAlpha = opacity;
+
+			// Draw Background
+			this.drawBackground(pt, vm, ctx, tooltipSize);
+
+			// Draw Title, Body, and Footer
+			pt.y += vm.yPadding;
+
+			// Titles
+			this.drawTitle(pt, vm, ctx);
+
+			// Body
+			this.drawBody(pt, vm, ctx);
+
+			// Footer
+			this.drawFooter(pt, vm, ctx);
+
+			ctx.restore();
+		}
+	},
+
+	/**
+	 * Handle an event
+	 * @private
+	 * @param {IEvent} event - The event to handle
+	 * @returns {boolean} true if the tooltip changed
+	 */
+	handleEvent: function(e) {
+		var me = this;
+		var options = me._options;
+		var changed = false;
+
+		me._lastActive = me._lastActive || [];
+
+		// Find Active Elements for tooltips
+		if (e.type === ''mouseout'') {
+			me._active = [];
+		} else {
+			me._active = me._chart.getElementsAtEventForMode(e, options.mode, options);
+		}
+
+		// Remember Last Actives
+		changed = !helpers$1.arrayEquals(me._active, me._lastActive);
+
+		// Only handle target event on tooltip change
+		if (changed) {
+			me._lastActive = me._active;
+
+			if (options.enabled || options.custom) {
+				me._eventPosition = {
+					x: e.x,
+					y: e.y
+				};
+
+				me.update(true);
+				me.pivot();
+			}
+		}
+
+		return changed;
+	}
+});
+
+/**
+ * @namespace Chart.Tooltip.positioners
+ */
+var positioners_1 = positioners;
+
+var core_tooltip = exports$3;
+core_tooltip.positioners = positioners_1;
+
+var valueOrDefault$8 = helpers$1.valueOrDefault;
+
+core_defaults._set(''global'', {
+	elements: {},
+	events: [
+		''mousemove'',
+		''mouseout'',
+		''click'',
+		''touchstart'',
+		''touchmove''
+	],
+	hover: {
+		onHover: null,
+		mode: ''nearest'',
+		intersect: true,
+		animationDuration: 400
+	},
+	onClick: null,
+	maintainAspectRatio: true,
+	responsive: true,
+	responsiveAnimationDuration: 0
+});
+
+/**
+ * Recursively merge the given config objects representing the `scales` option
+ * by incorporating scale defaults in `xAxes` and `yAxes` array items, then
+ * returns a deep copy of the result, thus doesn''t alter inputs.
+ */
+function mergeScaleConfig(/* config objects ... */) {
+	return helpers$1.merge({}, [].slice.call(arguments), {
+		merger: function(key, target, source, options) {
+			if (key === ''xAxes'' || key === ''yAxes'') {
+				var slen = source[key].length;
+				var i, type, scale;
+
+				if (!target[key]) {
+					target[key] = [];
+				}
+
+				for (i = 0; i < slen; ++i) {
+					scale = source[key][i];
+					type = valueOrDefault$8(scale.type, key === ''xAxes'' ? ''category'' : ''linear'');
+
+					if (i >= target[key].length) {
+						target[key].push({});
+					}
+
+					if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
+						// new/untyped scale or type changed: let''s apply the new defaults
+						// then merge source scale to correctly overwrite the defaults.
+						helpers$1.merge(target[key][i], [core_scaleService.getScaleDefaults(type), scale]);
+					} else {
+						// scales type are the same
+						helpers$1.merge(target[key][i], scale);
+					}
+				}
+			} else {
+				helpers$1._merger(key, target, source, options);
+			}
+		}
+	});
+}
+
+/**
+ * Recursively merge the given config objects as the root options by handling
+ * default scale options for the `scales` and `scale` properties, then returns
+ * a deep copy of the result, thus doesn''t alter inputs.
+ */
+function mergeConfig(/* config objects ... */) {
+	return helpers$1.merge({}, [].slice.call(arguments), {
+		merger: function(key, target, source, options) {
+			var tval = target[key] || {};
+			var sval = source[key];
+
+			if (key === ''scales'') {
+				// scale config merging is complex. Add our own function here for that
+				target[key] = mergeScaleConfig(tval, sval);
+			} else if (key === ''scale'') {
+				// used in polar area & radar charts since there is only one scale
+				target[key] = helpers$1.merge(tval, [core_scaleService.getScaleDefaults(sval.type), sval]);
+			} else {
+				helpers$1._merger(key, target, source, options);
+			}
+		}
+	});
+}
+
+function initConfig(config) {
+	config = config || {};
+
+	// Do NOT use mergeConfig for the data object because this method merges arrays
+	// and so would change references to labels and datasets, preventing data updates.
+	var data = config.data = config.data || {};
+	data.datasets = data.datasets || [];
+	data.labels = data.labels || [];
+
+	config.options = mergeConfig(
+		core_defaults.global,
+		core_defaults[config.type],
+		config.options || {});
+
+	return config;
+}
+
+function updateConfig(chart) {
+	var newOptions = chart.options;
+
+	helpers$1.each(chart.scales, function(scale) {
+		core_layouts.removeBox(chart, scale);
+	});
+
+	newOptions = mergeConfig(
+		core_defaults.global,
+		core_defaults[chart.config.type],
+		newOptions);
+
+	chart.options = chart.config.options = newOptions;
+	chart.ensureScalesHaveIDs();
+	chart.buildOrUpdateScales();
+
+	// Tooltip
+	chart.tooltip._options = newOptions.tooltips;
+	chart.tooltip.initialize();
+}
+
+function positionIsHorizontal(position) {
+	return position === ''top'' || position === ''bottom'';
+}
+
+var Chart = function(item, config) {
+	this.construct(item, config);
+	return this;
+};
+
+helpers$1.extend(Chart.prototype, /** @lends Chart */ {
+	/**
+	 * @private
+	 */
+	construct: function(item, config) {
+		var me = this;
+
+		config = initConfig(config);
+
+		var context = platform.acquireContext(item, config);
+		var canvas = context && context.canvas;
+		var height = canvas && canvas.height;
+		var width = canvas && canvas.width;
+
+		me.id = helpers$1.uid();
+		me.ctx = context;
+		me.canvas = canvas;
+		me.config = config;
+		me.width = width;
+		me.height = height;
+		me.aspectRatio = height ? width / height : null;
+		me.options = config.options;
+		me._bufferedRender = false;
+
+		/**
+		 * Provided for backward compatibility, Chart and Chart.Controller have been merged,
+		 * the "instance" still need to be defined since it might be called from plugins.
+		 * @prop Chart#chart
+		 * @deprecated since version 2.6.0
+		 * @todo remove at version 3
+		 * @private
+		 */
+		me.chart = me;
+		me.controller = me; // chart.chart.controller #inception
+
+		// Add the chart instance to the global namespace
+		Chart.instances[me.id] = me;
+
+		// Define alias to the config data: `chart.data === chart.config.data`
+		Object.defineProperty(me, ''data'', {
+			get: function() {
+				return me.config.data;
 			},
-			easeOutBounce: function (t) {
-				if ((t /= 1) < (1 / 2.75)) {
-					return 1 * (7.5625 * t * t);
-				} else if (t < (2 / 2.75)) {
-					return 1 * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75);
-				} else if (t < (2.5 / 2.75)) {
-					return 1 * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375);
-				} else {
-					return 1 * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375);
+			set: function(value) {
+				me.config.data = value;
+			}
+		});
+
+		if (!context || !canvas) {
+			// The given item is not a compatible context2d element, let''s return before finalizing
+			// the chart initialization but after setting basic chart / controller properties that
+			// can help to figure out that the chart is not valid (e.g chart.canvas !== null);
+			// https://github.com/chartjs/Chart.js/issues/2807
+			console.error("Failed to create chart: can''t acquire context from the given item");
+			return;
+		}
+
+		me.initialize();
+		me.update();
+	},
+
+	/**
+	 * @private
+	 */
+	initialize: function() {
+		var me = this;
+
+		// Before init plugin notification
+		core_plugins.notify(me, ''beforeInit'');
+
+		helpers$1.retinaScale(me, me.options.devicePixelRatio);
+
+		me.bindEvents();
+
+		if (me.options.responsive) {
+			// Initial resize before chart draws (must be silent to preserve initial animations).
+			me.resize(true);
+		}
+
+		// Make sure scales have IDs and are built before we build any controllers.
+		me.ensureScalesHaveIDs();
+		me.buildOrUpdateScales();
+		me.initToolTip();
+
+		// After init plugin notification
+		core_plugins.notify(me, ''afterInit'');
+
+		return me;
+	},
+
+	clear: function() {
+		helpers$1.canvas.clear(this);
+		return this;
+	},
+
+	stop: function() {
+		// Stops any current animation loop occurring
+		core_animations.cancelAnimation(this);
+		return this;
+	},
+
+	resize: function(silent) {
+		var me = this;
+		var options = me.options;
+		var canvas = me.canvas;
+		var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;
+
+		// the canvas render width and height will be casted to integers so make sure that
+		// the canvas display style uses the same integer values to avoid blurring effect.
+
+		// Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collapsed
+		var newWidth = Math.max(0, Math.floor(helpers$1.getMaximumWidth(canvas)));
+		var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers$1.getMaximumHeight(canvas)));
+
+		if (me.width === newWidth && me.height === newHeight) {
+			return;
+		}
+
+		canvas.width = me.width = newWidth;
+		canvas.height = me.height = newHeight;
+		canvas.style.width = newWidth + ''px'';
+		canvas.style.height = newHeight + ''px'';
+
+		helpers$1.retinaScale(me, options.devicePixelRatio);
+
+		if (!silent) {
+			// Notify any plugins about the resize
+			var newSize = {width: newWidth, height: newHeight};
+			core_plugins.notify(me, ''resize'', [newSize]);
+
+			// Notify of resize
+			if (options.onResize) {
+				options.onResize(me, newSize);
+			}
+
+			me.stop();
+			me.update({
+				duration: options.responsiveAnimationDuration
+			});
+		}
+	},
+
+	ensureScalesHaveIDs: function() {
+		var options = this.options;
+		var scalesOptions = options.scales || {};
+		var scaleOptions = options.scale;
+
+		helpers$1.each(scalesOptions.xAxes, function(xAxisOptions, index) {
+			xAxisOptions.id = xAxisOptions.id || (''x-axis-'' + index);
+		});
+
+		helpers$1.each(scalesOptions.yAxes, function(yAxisOptions, index) {
+			yAxisOptions.id = yAxisOptions.id || (''y-axis-'' + index);
+		});
+
+		if (scaleOptions) {
+			scaleOptions.id = scaleOptions.id || ''scale'';
+		}
+	},
+
+	/**
+	 * Builds a map of scale ID to scale object for future lookup.
+	 */
+	buildOrUpdateScales: function() {
+		var me = this;
+		var options = me.options;
+		var scales = me.scales || {};
+		var items = [];
+		var updated = Object.keys(scales).reduce(function(obj, id) {
+			obj[id] = false;
+			return obj;
+		}, {});
+
+		if (options.scales) {
+			items = items.concat(
+				(options.scales.xAxes || []).map(function(xAxisOptions) {
+					return {options: xAxisOptions, dtype: ''category'', dposition: ''bottom''};
+				}),
+				(options.scales.yAxes || []).map(function(yAxisOptions) {
+					return {options: yAxisOptions, dtype: ''linear'', dposition: ''left''};
+				})
+			);
+		}
+
+		if (options.scale) {
+			items.push({
+				options: options.scale,
+				dtype: ''radialLinear'',
+				isDefault: true,
+				dposition: ''chartArea''
+			});
+		}
+
+		helpers$1.each(items, function(item) {
+			var scaleOptions = item.options;
+			var id = scaleOptions.id;
+			var scaleType = valueOrDefault$8(scaleOptions.type, item.dtype);
+
+			if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
+				scaleOptions.position = item.dposition;
+			}
+
+			updated[id] = true;
+			var scale = null;
+			if (id in scales && scales[id].type === scaleType) {
+				scale = scales[id];
+				scale.options = scaleOptions;
+				scale.ctx = me.ctx;
+				scale.chart = me;
+			} else {
+				var scaleClass = core_scaleService.getScaleConstructor(scaleType);
+				if (!scaleClass) {
+					return;
+				}
+				scale = new scaleClass({
+					id: id,
+					type: scaleType,
+					options: scaleOptions,
+					ctx: me.ctx,
+					chart: me
+				});
+				scales[scale.id] = scale;
+			}
+
+			scale.mergeTicksOptions();
+
+			// TODO(SB): I think we should be able to remove this custom case (options.scale)
+			// and consider it as a regular scale part of the "scales"" map only! This would
+			// make the logic easier and remove some useless? custom code.
+			if (item.isDefault) {
+				me.scale = scale;
+			}
+		});
+		// clear up discarded scales
+		helpers$1.each(updated, function(hasUpdated, id) {
+			if (!hasUpdated) {
+				delete scales[id];
+			}
+		});
+
+		me.scales = scales;
+
+		core_scaleService.addScalesToLayout(this);
+	},
+
+	buildOrUpdateControllers: function() {
+		var me = this;
+		var newControllers = [];
+
+		helpers$1.each(me.data.datasets, function(dataset, datasetIndex) {
+			var meta = me.getDatasetMeta(datasetIndex);
+			var type = dataset.type || me.config.type;
+
+			if (meta.type && meta.type !== type) {
+				me.destroyDatasetMeta(datasetIndex);
+				meta = me.getDatasetMeta(datasetIndex);
+			}
+			meta.type = type;
+
+			if (meta.controller) {
+				meta.controller.updateIndex(datasetIndex);
+				meta.controller.linkScales();
+			} else {
+				var ControllerClass = controllers[meta.type];
+				if (ControllerClass === undefined) {
+					throw new Error(''"'' + meta.type + ''" is not a chart type.'');
+				}
+
+				meta.controller = new ControllerClass(me, datasetIndex);
+				newControllers.push(meta.controller);
+			}
+		}, me);
+
+		return newControllers;
+	},
+
+	/**
+	 * Reset the elements of all datasets
+	 * @private
+	 */
+	resetElements: function() {
+		var me = this;
+		helpers$1.each(me.data.datasets, function(dataset, datasetIndex) {
+			me.getDatasetMeta(datasetIndex).controller.reset();
+		}, me);
+	},
+
+	/**
+	* Resets the chart back to it''s state before the initial animation
+	*/
+	reset: function() {
+		this.resetElements();
+		this.tooltip.initialize();
+	},
+
+	update: function(config) {
+		var me = this;
+
+		if (!config || typeof config !== ''object'') {
+			// backwards compatibility
+			config = {
+				duration: config,
+				lazy: arguments[1]
+			};
+		}
+
+		updateConfig(me);
+
+		// plugins options references might have change, let''s invalidate the cache
+		// https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
+		core_plugins._invalidate(me);
+
+		if (core_plugins.notify(me, ''beforeUpdate'') === false) {
+			return;
+		}
+
+		// In case the entire data object changed
+		me.tooltip._data = me.data;
+
+		// Make sure dataset controllers are updated and new controllers are reset
+		var newControllers = me.buildOrUpdateControllers();
+
+		// Make sure all dataset controllers have correct meta data counts
+		helpers$1.each(me.data.datasets, function(dataset, datasetIndex) {
+			me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
+		}, me);
+
+		me.updateLayout();
+
+		// Can only reset the new controllers after the scales have been updated
+		if (me.options.animation && me.options.animation.duration) {
+			helpers$1.each(newControllers, function(controller) {
+				controller.reset();
+			});
+		}
+
+		me.updateDatasets();
+
+		// Need to reset tooltip in case it is displayed with elements that are removed
+		// after update.
+		me.tooltip.initialize();
+
+		// Last active contains items that were previously in the tooltip.
+		// When we reset the tooltip, we need to clear it
+		me.lastActive = [];
+
+		// Do this before render so that any plugins that need final scale updates can use it
+		core_plugins.notify(me, ''afterUpdate'');
+
+		if (me._bufferedRender) {
+			me._bufferedRequest = {
+				duration: config.duration,
+				easing: config.easing,
+				lazy: config.lazy
+			};
+		} else {
+			me.render(config);
+		}
+	},
+
+	/**
+	 * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
+	 * hook, in which case, plugins will not be called on `afterLayout`.
+	 * @private
+	 */
+	updateLayout: function() {
+		var me = this;
+
+		if (core_plugins.notify(me, ''beforeLayout'') === false) {
+			return;
+		}
+
+		core_layouts.update(this, this.width, this.height);
+
+		/**
+		 * Provided for backward compatibility, use `afterLayout` instead.
+		 * @method IPlugin#afterScaleUpdate
+		 * @deprecated since version 2.5.0
+		 * @todo remove at version 3
+		 * @private
+		 */
+		core_plugins.notify(me, ''afterScaleUpdate'');
+		core_plugins.notify(me, ''afterLayout'');
+	},
+
+	/**
+	 * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
+	 * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
+	 * @private
+	 */
+	updateDatasets: function() {
+		var me = this;
+
+		if (core_plugins.notify(me, ''beforeDatasetsUpdate'') === false) {
+			return;
+		}
+
+		for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
+			me.updateDataset(i);
+		}
+
+		core_plugins.notify(me, ''afterDatasetsUpdate'');
+	},
+
+	/**
+	 * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
+	 * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
+	 * @private
+	 */
+	updateDataset: function(index) {
+		var me = this;
+		var meta = me.getDatasetMeta(index);
+		var args = {
+			meta: meta,
+			index: index
+		};
+
+		if (core_plugins.notify(me, ''beforeDatasetUpdate'', [args]) === false) {
+			return;
+		}
+
+		meta.controller.update();
+
+		core_plugins.notify(me, ''afterDatasetUpdate'', [args]);
+	},
+
+	render: function(config) {
+		var me = this;
+
+		if (!config || typeof config !== ''object'') {
+			// backwards compatibility
+			config = {
+				duration: config,
+				lazy: arguments[1]
+			};
+		}
+
+		var animationOptions = me.options.animation;
+		var duration = valueOrDefault$8(config.duration, animationOptions && animationOptions.duration);
+		var lazy = config.lazy;
+
+		if (core_plugins.notify(me, ''beforeRender'') === false) {
+			return;
+		}
+
+		var onComplete = function(animation) {
+			core_plugins.notify(me, ''afterRender'');
+			helpers$1.callback(animationOptions && animationOptions.onComplete, [animation], me);
+		};
+
+		if (animationOptions && duration) {
+			var animation = new core_animation({
+				numSteps: duration / 16.66, // 60 fps
+				easing: config.easing || animationOptions.easing,
+
+				render: function(chart, animationObject) {
+					var easingFunction = helpers$1.easing.effects[animationObject.easing];
+					var currentStep = animationObject.currentStep;
+					var stepDecimal = currentStep / animationObject.numSteps;
+
+					chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
+				},
+
+				onAnimationProgress: animationOptions.onProgress,
+				onAnimationComplete: onComplete
+			});
+
+			core_animations.addAnimation(me, animation, duration, lazy);
+		} else {
+			me.draw();
+
+			// See https://github.com/chartjs/Chart.js/issues/3781
+			onComplete(new core_animation({numSteps: 0, chart: me}));
+		}
+
+		return me;
+	},
+
+	draw: function(easingValue) {
+		var me = this;
+
+		me.clear();
+
+		if (helpers$1.isNullOrUndef(easingValue)) {
+			easingValue = 1;
+		}
+
+		me.transition(easingValue);
+
+		if (me.width <= 0 || me.height <= 0) {
+			return;
+		}
+
+		if (core_plugins.notify(me, ''beforeDraw'', [easingValue]) === false) {
+			return;
+		}
+
+		// Draw all the scales
+		helpers$1.each(me.boxes, function(box) {
+			box.draw(me.chartArea);
+		}, me);
+
+		me.drawDatasets(easingValue);
+		me._drawTooltip(easingValue);
+
+		core_plugins.notify(me, ''afterDraw'', [easingValue]);
+	},
+
+	/**
+	 * @private
+	 */
+	transition: function(easingValue) {
+		var me = this;
+
+		for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
+			if (me.isDatasetVisible(i)) {
+				me.getDatasetMeta(i).controller.transition(easingValue);
+			}
+		}
+
+		me.tooltip.transition(easingValue);
+	},
+
+	/**
+	 * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
+	 * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
+	 * @private
+	 */
+	drawDatasets: function(easingValue) {
+		var me = this;
+
+		if (core_plugins.notify(me, ''beforeDatasetsDraw'', [easingValue]) === false) {
+			return;
+		}
+
+		// Draw datasets reversed to support proper line stacking
+		for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) {
+			if (me.isDatasetVisible(i)) {
+				me.drawDataset(i, easingValue);
+			}
+		}
+
+		core_plugins.notify(me, ''afterDatasetsDraw'', [easingValue]);
+	},
+
+	/**
+	 * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
+	 * hook, in which case, plugins will not be called on `afterDatasetDraw`.
+	 * @private
+	 */
+	drawDataset: function(index, easingValue) {
+		var me = this;
+		var meta = me.getDatasetMeta(index);
+		var args = {
+			meta: meta,
+			index: index,
+			easingValue: easingValue
+		};
+
+		if (core_plugins.notify(me, ''beforeDatasetDraw'', [args]) === false) {
+			return;
+		}
+
+		meta.controller.draw(easingValue);
+
+		core_plugins.notify(me, ''afterDatasetDraw'', [args]);
+	},
+
+	/**
+	 * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw`
+	 * hook, in which case, plugins will not be called on `afterTooltipDraw`.
+	 * @private
+	 */
+	_drawTooltip: function(easingValue) {
+		var me = this;
+		var tooltip = me.tooltip;
+		var args = {
+			tooltip: tooltip,
+			easingValue: easingValue
+		};
+
+		if (core_plugins.notify(me, ''beforeTooltipDraw'', [args]) === false) {
+			return;
+		}
+
+		tooltip.draw();
+
+		core_plugins.notify(me, ''afterTooltipDraw'', [args]);
+	},
+
+	/**
+	 * Get the single element that was clicked on
+	 * @return An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
+	 */
+	getElementAtEvent: function(e) {
+		return core_interaction.modes.single(this, e);
+	},
+
+	getElementsAtEvent: function(e) {
+		return core_interaction.modes.label(this, e, {intersect: true});
+	},
+
+	getElementsAtXAxis: function(e) {
+		return core_interaction.modes[''x-axis''](this, e, {intersect: true});
+	},
+
+	getElementsAtEventForMode: function(e, mode, options) {
+		var method = core_interaction.modes[mode];
+		if (typeof method === ''function'') {
+			return method(this, e, options);
+		}
+
+		return [];
+	},
+
+	getDatasetAtEvent: function(e) {
+		return core_interaction.modes.dataset(this, e, {intersect: true});
+	},
+
+	getDatasetMeta: function(datasetIndex) {
+		var me = this;
+		var dataset = me.data.datasets[datasetIndex];
+		if (!dataset._meta) {
+			dataset._meta = {};
+		}
+
+		var meta = dataset._meta[me.id];
+		if (!meta) {
+			meta = dataset._meta[me.id] = {
+				type: null,
+				data: [],
+				dataset: null,
+				controller: null,
+				hidden: null,			// See isDatasetVisible() comment
+				xAxisID: null,
+				yAxisID: null
+			};
+		}
+
+		return meta;
+	},
+
+	getVisibleDatasetCount: function() {
+		var count = 0;
+		for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
+			if (this.isDatasetVisible(i)) {
+				count++;
+			}
+		}
+		return count;
+	},
+
+	isDatasetVisible: function(datasetIndex) {
+		var meta = this.getDatasetMeta(datasetIndex);
+
+		// meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
+		// the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
+		return typeof meta.hidden === ''boolean'' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
+	},
+
+	generateLegend: function() {
+		return this.options.legendCallback(this);
+	},
+
+	/**
+	 * @private
+	 */
+	destroyDatasetMeta: function(datasetIndex) {
+		var id = this.id;
+		var dataset = this.data.datasets[datasetIndex];
+		var meta = dataset._meta && dataset._meta[id];
+
+		if (meta) {
+			meta.controller.destroy();
+			delete dataset._meta[id];
+		}
+	},
+
+	destroy: function() {
+		var me = this;
+		var canvas = me.canvas;
+		var i, ilen;
+
+		me.stop();
+
+		// dataset controllers need to cleanup associated data
+		for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
+			me.destroyDatasetMeta(i);
+		}
+
+		if (canvas) {
+			me.unbindEvents();
+			helpers$1.canvas.clear(me);
+			platform.releaseContext(me.ctx);
+			me.canvas = null;
+			me.ctx = null;
+		}
+
+		core_plugins.notify(me, ''destroy'');
+
+		delete Chart.instances[me.id];
+	},
+
+	toBase64Image: function() {
+		return this.canvas.toDataURL.apply(this.canvas, arguments);
+	},
+
+	initToolTip: function() {
+		var me = this;
+		me.tooltip = new core_tooltip({
+			_chart: me,
+			_chartInstance: me, // deprecated, backward compatibility
+			_data: me.data,
+			_options: me.options.tooltips
+		}, me);
+	},
+
+	/**
+	 * @private
+	 */
+	bindEvents: function() {
+		var me = this;
+		var listeners = me._listeners = {};
+		var listener = function() {
+			me.eventHandler.apply(me, arguments);
+		};
+
+		helpers$1.each(me.options.events, function(type) {
+			platform.addEventListener(me, type, listener);
+			listeners[type] = listener;
+		});
+
+		// Elements used to detect size change should not be injected for non responsive charts.
+		// See https://github.com/chartjs/Chart.js/issues/2210
+		if (me.options.responsive) {
+			listener = function() {
+				me.resize();
+			};
+
+			platform.addEventListener(me, ''resize'', listener);
+			listeners.resize = listener;
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	unbindEvents: function() {
+		var me = this;
+		var listeners = me._listeners;
+		if (!listeners) {
+			return;
+		}
+
+		delete me._listeners;
+		helpers$1.each(listeners, function(listener, type) {
+			platform.removeEventListener(me, type, listener);
+		});
+	},
+
+	updateHoverStyle: function(elements, mode, enabled) {
+		var method = enabled ? ''setHoverStyle'' : ''removeHoverStyle'';
+		var element, i, ilen;
+
+		for (i = 0, ilen = elements.length; i < ilen; ++i) {
+			element = elements[i];
+			if (element) {
+				this.getDatasetMeta(element._datasetIndex).controller[method](element);
+			}
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	eventHandler: function(e) {
+		var me = this;
+		var tooltip = me.tooltip;
+
+		if (core_plugins.notify(me, ''beforeEvent'', [e]) === false) {
+			return;
+		}
+
+		// Buffer any update calls so that renders do not occur
+		me._bufferedRender = true;
+		me._bufferedRequest = null;
+
+		var changed = me.handleEvent(e);
+		// for smooth tooltip animations issue #4989
+		// the tooltip should be the source of change
+		// Animation check workaround:
+		// tooltip._start will be null when tooltip isn''t animating
+		if (tooltip) {
+			changed = tooltip._start
+				? tooltip.handleEvent(e)
+				: changed | tooltip.handleEvent(e);
+		}
+
+		core_plugins.notify(me, ''afterEvent'', [e]);
+
+		var bufferedRequest = me._bufferedRequest;
+		if (bufferedRequest) {
+			// If we have an update that was triggered, we need to do a normal render
+			me.render(bufferedRequest);
+		} else if (changed && !me.animating) {
+			// If entering, leaving, or changing elements, animate the change via pivot
+			me.stop();
+
+			// We only need to render at this point. Updating will cause scales to be
+			// recomputed generating flicker & using more memory than necessary.
+			me.render({
+				duration: me.options.hover.animationDuration,
+				lazy: true
+			});
+		}
+
+		me._bufferedRender = false;
+		me._bufferedRequest = null;
+
+		return me;
+	},
+
+	/**
+	 * Handle an event
+	 * @private
+	 * @param {IEvent} event the event to handle
+	 * @return {boolean} true if the chart needs to re-render
+	 */
+	handleEvent: function(e) {
+		var me = this;
+		var options = me.options || {};
+		var hoverOptions = options.hover;
+		var changed = false;
+
+		me.lastActive = me.lastActive || [];
+
+		// Find Active Elements for hover and tooltips
+		if (e.type === ''mouseout'') {
+			me.active = [];
+		} else {
+			me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
+		}
+
+		// Invoke onHover hook
+		// Need to call with native event here to not break backwards compatibility
+		helpers$1.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);
+
+		if (e.type === ''mouseup'' || e.type === ''click'') {
+			if (options.onClick) {
+				// Use e.native here for backwards compatibility
+				options.onClick.call(me, e.native, me.active);
+			}
+		}
+
+		// Remove styling for last active (even if it may still be active)
+		if (me.lastActive.length) {
+			me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
+		}
+
+		// Built in hover styling
+		if (me.active.length && hoverOptions.mode) {
+			me.updateHoverStyle(me.active, hoverOptions.mode, true);
+		}
+
+		changed = !helpers$1.arrayEquals(me.active, me.lastActive);
+
+		// Remember Last Actives
+		me.lastActive = me.active;
+
+		return changed;
+	}
+});
+
+/**
+ * NOTE(SB) We actually don''t use this container anymore but we need to keep it
+ * for backward compatibility. Though, it can still be useful for plugins that
+ * would need to work on multiple charts?!
+ */
+Chart.instances = {};
+
+var core_controller = Chart;
+
+// DEPRECATIONS
+
+/**
+ * Provided for backward compatibility, use Chart instead.
+ * @class Chart.Controller
+ * @deprecated since version 2.6
+ * @todo remove at version 3
+ * @private
+ */
+Chart.Controller = Chart;
+
+/**
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart
+ * @deprecated since version 2.8
+ * @todo remove at version 3
+ * @private
+ */
+Chart.types = {};
+
+/**
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart.helpers.configMerge
+ * @deprecated since version 2.8.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.configMerge = mergeConfig;
+
+/**
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart.helpers.scaleMerge
+ * @deprecated since version 2.8.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.scaleMerge = mergeScaleConfig;
+
+var core_helpers = function() {
+
+	// -- Basic js utility methods
+
+	helpers$1.where = function(collection, filterCallback) {
+		if (helpers$1.isArray(collection) && Array.prototype.filter) {
+			return collection.filter(filterCallback);
+		}
+		var filtered = [];
+
+		helpers$1.each(collection, function(item) {
+			if (filterCallback(item)) {
+				filtered.push(item);
+			}
+		});
+
+		return filtered;
+	};
+	helpers$1.findIndex = Array.prototype.findIndex ?
+		function(array, callback, scope) {
+			return array.findIndex(callback, scope);
+		} :
+		function(array, callback, scope) {
+			scope = scope === undefined ? array : scope;
+			for (var i = 0, ilen = array.length; i < ilen; ++i) {
+				if (callback.call(scope, array[i], i, array)) {
+					return i;
 				}
+			}
+			return -1;
+		};
+	helpers$1.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
+		// Default to start of the array
+		if (helpers$1.isNullOrUndef(startIndex)) {
+			startIndex = -1;
+		}
+		for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
+			var currentItem = arrayToSearch[i];
+			if (filterCallback(currentItem)) {
+				return currentItem;
+			}
+		}
+	};
+	helpers$1.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
+		// Default to end of the array
+		if (helpers$1.isNullOrUndef(startIndex)) {
+			startIndex = arrayToSearch.length;
+		}
+		for (var i = startIndex - 1; i >= 0; i--) {
+			var currentItem = arrayToSearch[i];
+			if (filterCallback(currentItem)) {
+				return currentItem;
+			}
+		}
+	};
+
+	// -- Math methods
+	helpers$1.isNumber = function(n) {
+		return !isNaN(parseFloat(n)) && isFinite(n);
+	};
+	helpers$1.almostEquals = function(x, y, epsilon) {
+		return Math.abs(x - y) < epsilon;
+	};
+	helpers$1.almostWhole = function(x, epsilon) {
+		var rounded = Math.round(x);
+		return (((rounded - epsilon) < x) && ((rounded + epsilon) > x));
+	};
+	helpers$1.max = function(array) {
+		return array.reduce(function(max, value) {
+			if (!isNaN(value)) {
+				return Math.max(max, value);
+			}
+			return max;
+		}, Number.NEGATIVE_INFINITY);
+	};
+	helpers$1.min = function(array) {
+		return array.reduce(function(min, value) {
+			if (!isNaN(value)) {
+				return Math.min(min, value);
+			}
+			return min;
+		}, Number.POSITIVE_INFINITY);
+	};
+	helpers$1.sign = Math.sign ?
+		function(x) {
+			return Math.sign(x);
+		} :
+		function(x) {
+			x = +x; // convert to a number
+			if (x === 0 || isNaN(x)) {
+				return x;
+			}
+			return x > 0 ? 1 : -1;
+		};
+	helpers$1.log10 = Math.log10 ?
+		function(x) {
+			return Math.log10(x);
+		} :
+		function(x) {
+			var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.
+			// Check for whole powers of 10,
+			// which due to floating point rounding error should be corrected.
+			var powerOf10 = Math.round(exponent);
+			var isPowerOf10 = x === Math.pow(10, powerOf10);
+
+			return isPowerOf10 ? powerOf10 : exponent;
+		};
+	helpers$1.toRadians = function(degrees) {
+		return degrees * (Math.PI / 180);
+	};
+	helpers$1.toDegrees = function(radians) {
+		return radians * (180 / Math.PI);
+	};
+
+	/**
+	 * Returns the number of decimal places
+	 * i.e. the number of digits after the decimal point, of the value of this Number.
+	 * @param {number} x - A number.
+	 * @returns {number} The number of decimal places.
+	 */
+	helpers$1.decimalPlaces = function(x) {
+		if (!helpers$1.isFinite(x)) {
+			return;
+		}
+		var e = 1;
+		var p = 0;
+		while (Math.round(x * e) / e !== x) {
+			e *= 10;
+			p++;
+		}
+		return p;
+	};
+
+	// Gets the angle from vertical upright to the point about a centre.
+	helpers$1.getAngleFromPoint = function(centrePoint, anglePoint) {
+		var distanceFromXCenter = anglePoint.x - centrePoint.x;
+		var distanceFromYCenter = anglePoint.y - centrePoint.y;
+		var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
+
+		var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
+
+		if (angle < (-0.5 * Math.PI)) {
+			angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
+		}
+
+		return {
+			angle: angle,
+			distance: radialDistanceFromCenter
+		};
+	};
+	helpers$1.distanceBetweenPoints = function(pt1, pt2) {
+		return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
+	};
+
+	/**
+	 * Provided for backward compatibility, not available anymore
+	 * @function Chart.helpers.aliasPixel
+	 * @deprecated since version 2.8.0
+	 * @todo remove at version 3
+	 */
+	helpers$1.aliasPixel = function(pixelWidth) {
+		return (pixelWidth % 2 === 0) ? 0 : 0.5;
+	};
+
+	/**
+	 * Returns the aligned pixel value to avoid anti-aliasing blur
+	 * @param {Chart} chart - The chart instance.
+	 * @param {number} pixel - A pixel value.
+	 * @param {number} width - The width of the element.
+	 * @returns {number} The aligned pixel value.
+	 * @private
+	 */
+	helpers$1._alignPixel = function(chart, pixel, width) {
+		var devicePixelRatio = chart.currentDevicePixelRatio;
+		var halfWidth = width / 2;
+		return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;
+	};
+
+	helpers$1.splineCurve = function(firstPoint, middlePoint, afterPoint, t) {
+		// Props to Rob Spencer at scaled innovation for his post on splining between points
+		// http://scaledinnovation.com/analytics/splines/aboutSplines.html
+
+		// This function must also respect "skipped" points
+
+		var previous = firstPoint.skip ? middlePoint : firstPoint;
+		var current = middlePoint;
+		var next = afterPoint.skip ? middlePoint : afterPoint;
+
+		var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
+		var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));
+
+		var s01 = d01 / (d01 + d12);
+		var s12 = d12 / (d01 + d12);
+
+		// If all points are the same, s01 & s02 will be inf
+		s01 = isNaN(s01) ? 0 : s01;
+		s12 = isNaN(s12) ? 0 : s12;
+
+		var fa = t * s01; // scaling factor for triangle Ta
+		var fb = t * s12;
+
+		return {
+			previous: {
+				x: current.x - fa * (next.x - previous.x),
+				y: current.y - fa * (next.y - previous.y)
 			},
-			easeInOutBounce: function (t) {
-				if (t < 1 / 2) return easingEffects.easeInBounce(t * 2) * 0.5;
-				return easingEffects.easeOutBounce(t * 2 - 1) * 0.5 + 1 * 0.5;
+			next: {
+				x: current.x + fb * (next.x - previous.x),
+				y: current.y + fb * (next.y - previous.y)
 			}
-		},
-		//Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
-		requestAnimFrame = helpers.requestAnimFrame = (function(){
-			return window.requestAnimationFrame ||
-				window.webkitRequestAnimationFrame ||
-				window.mozRequestAnimationFrame ||
-				window.oRequestAnimationFrame ||
-				window.msRequestAnimationFrame ||
-				function(callback) {
-					return window.setTimeout(callback, 1000 / 60);
-				};
-		})(),
-		cancelAnimFrame = helpers.cancelAnimFrame = (function(){
-			return window.cancelAnimationFrame ||
-				window.webkitCancelAnimationFrame ||
-				window.mozCancelAnimationFrame ||
-				window.oCancelAnimationFrame ||
-				window.msCancelAnimationFrame ||
-				function(callback) {
-					return window.clearTimeout(callback, 1000 / 60);
-				};
-		})(),
-		animationLoop = helpers.animationLoop = function(callback,totalSteps,easingString,onProgress,onComplete,chartInstance){
-
-			var currentStep = 0,
-				easingFunction = easingEffects[easingString] || easingEffects.linear;
-
-			var animationFrame = function(){
-				currentStep++;
-				var stepDecimal = currentStep/totalSteps;
-				var easeDecimal = easingFunction(stepDecimal);
-
-				callback.call(chartInstance,easeDecimal,stepDecimal, currentStep);
-				onProgress.call(chartInstance,easeDecimal,stepDecimal);
-				if (currentStep < totalSteps){
-					chartInstance.animationFrame = requestAnimFrame(animationFrame);
-				} else{
-					onComplete.apply(chartInstance);
-				}
+		};
+	};
+	helpers$1.EPSILON = Number.EPSILON || 1e-14;
+	helpers$1.splineCurveMonotone = function(points) {
+		// This function calculates Bézier control points in a similar way than |splineCurve|,
+		// but preserves monotonicity of the provided data and ensures no local extremums are added
+		// between the dataset discrete points due to the interpolation.
+		// See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+
+		var pointsWithTangents = (points || []).map(function(point) {
+			return {
+				model: point._model,
+				deltaK: 0,
+				mK: 0
 			};
-			requestAnimFrame(animationFrame);
-		},
-		//-- DOM methods
-		getRelativePosition = helpers.getRelativePosition = function(evt){
-			var mouseX, mouseY;
-			var e = evt.originalEvent || evt,
-				canvas = evt.currentTarget || evt.srcElement,
-				boundingRect = canvas.getBoundingClientRect();
+		});
+
+		// Calculate slopes (deltaK) and initialize tangents (mK)
+		var pointsLen = pointsWithTangents.length;
+		var i, pointBefore, pointCurrent, pointAfter;
+		for (i = 0; i < pointsLen; ++i) {
+			pointCurrent = pointsWithTangents[i];
+			if (pointCurrent.model.skip) {
+				continue;
+			}
 
-			if (e.touches){
-				mouseX = e.touches[0].clientX - boundingRect.left;
-				mouseY = e.touches[0].clientY - boundingRect.top;
+			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
+			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
+			if (pointAfter && !pointAfter.model.skip) {
+				var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);
 
+				// In the case of two points that appear at the same x pixel, slopeDeltaX is 0
+				pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
 			}
-			else{
-				mouseX = e.clientX - boundingRect.left;
-				mouseY = e.clientY - boundingRect.top;
+
+			if (!pointBefore || pointBefore.model.skip) {
+				pointCurrent.mK = pointCurrent.deltaK;
+			} else if (!pointAfter || pointAfter.model.skip) {
+				pointCurrent.mK = pointBefore.deltaK;
+			} else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
+				pointCurrent.mK = 0;
+			} else {
+				pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
 			}
+		}
 
-			return {
-				x : mouseX,
-				y : mouseY
-			};
+		// Adjust tangents to ensure monotonic properties
+		var alphaK, betaK, tauK, squaredMagnitude;
+		for (i = 0; i < pointsLen - 1; ++i) {
+			pointCurrent = pointsWithTangents[i];
+			pointAfter = pointsWithTangents[i + 1];
+			if (pointCurrent.model.skip || pointAfter.model.skip) {
+				continue;
+			}
 
-		},
-		addEvent = helpers.addEvent = function(node,eventType,method){
-			if (node.addEventListener){
-				node.addEventListener(eventType,method);
-			} else if (node.attachEvent){
-				node.attachEvent("on"+eventType, method);
-			} else {
-				node["on"+eventType] = method;
+			if (helpers$1.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
+				pointCurrent.mK = pointAfter.mK = 0;
+				continue;
 			}
-		},
-		removeEvent = helpers.removeEvent = function(node, eventType, handler){
-			if (node.removeEventListener){
-				node.removeEventListener(eventType, handler, false);
-			} else if (node.detachEvent){
-				node.detachEvent("on"+eventType,handler);
-			} else{
-				node["on" + eventType] = noop;
+
+			alphaK = pointCurrent.mK / pointCurrent.deltaK;
+			betaK = pointAfter.mK / pointCurrent.deltaK;
+			squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
+			if (squaredMagnitude <= 9) {
+				continue;
 			}
-		},
-		bindEvents = helpers.bindEvents = function(chartInstance, arrayOfEvents, handler){
-			// Create the events object if it''s not already present
-			if (!chartInstance.events) chartInstance.events = {};
 
-			each(arrayOfEvents,function(eventName){
-				chartInstance.events[eventName] = function(){
-					handler.apply(chartInstance, arguments);
-				};
-				addEvent(chartInstance.chart.canvas,eventName,chartInstance.events[eventName]);
-			});
-		},
-		unbindEvents = helpers.unbindEvents = function (chartInstance, arrayOfEvents) {
-			each(arrayOfEvents, function(handler,eventName){
-				removeEvent(chartInstance.chart.canvas, eventName, handler);
-			});
-		},
-		getMaximumWidth = helpers.getMaximumWidth = function(domNode){
-			var container = domNode.parentNode;
-			// TODO = check cross browser stuff with this.
-			return container.clientWidth;
-		},
-		getMaximumHeight = helpers.getMaximumHeight = function(domNode){
-			var container = domNode.parentNode;
-			// TODO = check cross browser stuff with this.
-			return container.clientHeight;
-		},
-		getMaximumSize = helpers.getMaximumSize = helpers.getMaximumWidth, // legacy support
-		retinaScale = helpers.retinaScale = function(chart){
-			var ctx = chart.ctx,
-				width = chart.canvas.width,
-				height = chart.canvas.height;
-
-			if (window.devicePixelRatio) {
-				ctx.canvas.style.width = width + "px";
-				ctx.canvas.style.height = height + "px";
-				ctx.canvas.height = height * window.devicePixelRatio;
-				ctx.canvas.width = width * window.devicePixelRatio;
-				ctx.scale(window.devicePixelRatio, window.devicePixelRatio);
+			tauK = 3 / Math.sqrt(squaredMagnitude);
+			pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
+			pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
+		}
+
+		// Compute control points
+		var deltaX;
+		for (i = 0; i < pointsLen; ++i) {
+			pointCurrent = pointsWithTangents[i];
+			if (pointCurrent.model.skip) {
+				continue;
 			}
-		},
-		//-- Canvas methods
-		clear = helpers.clear = function(chart){
-			chart.ctx.clearRect(0,0,chart.width,chart.height);
-		},
-		fontString = helpers.fontString = function(pixelSize,fontStyle,fontFamily){
-			return fontStyle + " " + pixelSize+"px " + fontFamily;
-		},
-		longestText = helpers.longestText = function(ctx,font,arrayOfStrings){
-			ctx.font = font;
-			var longest = 0;
-			each(arrayOfStrings,function(string){
-				var textWidth = ctx.measureText(string).width;
-				longest = (textWidth > longest) ? textWidth : longest;
-			});
-			return longest;
-		},
-		drawRoundedRectangle = helpers.drawRoundedRectangle = function(ctx,x,y,width,height,radius){
-			ctx.beginPath();
-			ctx.moveTo(x + radius, y);
-			ctx.lineTo(x + width - radius, y);
-			ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
-			ctx.lineTo(x + width, y + height - radius);
-			ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
-			ctx.lineTo(x + radius, y + height);
-			ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
-			ctx.lineTo(x, y + radius);
-			ctx.quadraticCurveTo(x, y, x + radius, y);
-			ctx.closePath();
+
+			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
+			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
+			if (pointBefore && !pointBefore.model.skip) {
+				deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
+				pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
+				pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
+			}
+			if (pointAfter && !pointAfter.model.skip) {
+				deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
+				pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
+				pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
+			}
+		}
+	};
+	helpers$1.nextItem = function(collection, index, loop) {
+		if (loop) {
+			return index >= collection.length - 1 ? collection[0] : collection[index + 1];
+		}
+		return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
+	};
+	helpers$1.previousItem = function(collection, index, loop) {
+		if (loop) {
+			return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
+		}
+		return index <= 0 ? collection[0] : collection[index - 1];
+	};
+	// Implementation of the nice number algorithm used in determining where axis labels will go
+	helpers$1.niceNum = function(range, round) {
+		var exponent = Math.floor(helpers$1.log10(range));
+		var fraction = range / Math.pow(10, exponent);
+		var niceFraction;
+
+		if (round) {
+			if (fraction < 1.5) {
+				niceFraction = 1;
+			} else if (fraction < 3) {
+				niceFraction = 2;
+			} else if (fraction < 7) {
+				niceFraction = 5;
+			} else {
+				niceFraction = 10;
+			}
+		} else if (fraction <= 1.0) {
+			niceFraction = 1;
+		} else if (fraction <= 2) {
+			niceFraction = 2;
+		} else if (fraction <= 5) {
+			niceFraction = 5;
+		} else {
+			niceFraction = 10;
+		}
+
+		return niceFraction * Math.pow(10, exponent);
+	};
+	// Request animation polyfill - https://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
+	helpers$1.requestAnimFrame = (function() {
+		if (typeof window === ''undefined'') {
+			return function(callback) {
+				callback();
+			};
+		}
+		return window.requestAnimationFrame ||
+			window.webkitRequestAnimationFrame ||
+			window.mozRequestAnimationFrame ||
+			window.oRequestAnimationFrame ||
+			window.msRequestAnimationFrame ||
+			function(callback) {
+				return window.setTimeout(callback, 1000 / 60);
+			};
+	}());
+	// -- DOM methods
+	helpers$1.getRelativePosition = function(evt, chart) {
+		var mouseX, mouseY;
+		var e = evt.originalEvent || evt;
+		var canvas = evt.target || evt.srcElement;
+		var boundingRect = canvas.getBoundingClientRect();
+
+		var touches = e.touches;
+		if (touches && touches.length > 0) {
+			mouseX = touches[0].clientX;
+			mouseY = touches[0].clientY;
+
+		} else {
+			mouseX = e.clientX;
+			mouseY = e.clientY;
+		}
+
+		// Scale mouse coordinates into canvas coordinates
+		// by following the pattern laid out by ''jerryj'' in the comments of
+		// https://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
+		var paddingLeft = parseFloat(helpers$1.getStyle(canvas, ''padding-left''));
+		var paddingTop = parseFloat(helpers$1.getStyle(canvas, ''padding-top''));
+		var paddingRight = parseFloat(helpers$1.getStyle(canvas, ''padding-right''));
+		var paddingBottom = parseFloat(helpers$1.getStyle(canvas, ''padding-bottom''));
+		var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
+		var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;
+
+		// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
+		// the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
+		mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
+		mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);
+
+		return {
+			x: mouseX,
+			y: mouseY
 		};
 
+	};
+
+	// Private helper function to convert max-width/max-height values that may be percentages into a number
+	function parseMaxStyle(styleValue, node, parentProperty) {
+		var valueInPixels;
+		if (typeof styleValue === ''string'') {
+			valueInPixels = parseInt(styleValue, 10);
+
+			if (styleValue.indexOf(''%'') !== -1) {
+				// percentage * size in dimension
+				valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
+			}
+		} else {
+			valueInPixels = styleValue;
+		}
 
-	//Store a reference to each instance - allowing us to globally resize chart instances on window resize.
-	//Destroy method on the chart will remove the instance of the chart from this reference.
-	Chart.instances = {};
+		return valueInPixels;
+	}
 
-	Chart.Type = function(data,options,chart){
-		this.options = options;
-		this.chart = chart;
-		this.id = uid();
-		//Add the chart instance to the global namespace
-		Chart.instances[this.id] = this;
+	/**
+	 * Returns if the given value contains an effective constraint.
+	 * @private
+	 */
+	function isConstrainedValue(value) {
+		return value !== undefined && value !== null && value !== ''none'';
+	}
 
-		// Initialize is always called when a chart type is created
-		// By default it is a no op, but it should be extended
-		if (options.responsive){
-			this.resize();
+	/**
+	 * Returns the max width or height of the given DOM node in a cross-browser compatible fashion
+	 * @param {HTMLElement} domNode - the node to check the constraint on
+	 * @param {string} maxStyle - the style that defines the maximum for the direction we are using (''max-width'' / ''max-height'')
+	 * @param {string} percentageProperty - property of parent to use when calculating width as a percentage
+	 * @see {@link https://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser}
+	 */
+	function getConstraintDimension(domNode, maxStyle, percentageProperty) {
+		var view = document.defaultView;
+		var parentNode = helpers$1._getParentNode(domNode);
+		var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
+		var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
+		var hasCNode = isConstrainedValue(constrainedNode);
+		var hasCContainer = isConstrainedValue(constrainedContainer);
+		var infinity = Number.POSITIVE_INFINITY;
+
+		if (hasCNode || hasCContainer) {
+			return Math.min(
+				hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
+				hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
 		}
-		this.initialize.call(this,data);
+
+		return ''none'';
+	}
+	// returns Number or undefined if no constraint
+	helpers$1.getConstraintWidth = function(domNode) {
+		return getConstraintDimension(domNode, ''max-width'', ''clientWidth'');
 	};
+	// returns Number or undefined if no constraint
+	helpers$1.getConstraintHeight = function(domNode) {
+		return getConstraintDimension(domNode, ''max-height'', ''clientHeight'');
+	};
+	/**
+	 * @private
+ 	 */
+	helpers$1._calculatePadding = function(container, padding, parentDimension) {
+		padding = helpers$1.getStyle(container, padding);
 
-	//Core methods that''ll be a part of every chart type
-	extend(Chart.Type.prototype,{
-		initialize : function(){return this;},
-		clear : function(){
-			clear(this.chart);
-			return this;
-		},
-		stop : function(){
-			// Stops any current animation loop occuring
-			helpers.cancelAnimFrame.call(root, this.animationFrame);
-			return this;
-		},
-		resize : function(callback){
-			this.stop();
-			var canvas = this.chart.canvas,
-				newWidth = getMaximumWidth(this.chart.canvas),
-				newHeight = this.options.maintainAspectRatio ? newWidth / this.chart.aspectRatio : getMaximumHeight(this.chart.canvas);
+		return padding.indexOf(''%'') > -1 ? parentDimension * parseInt(padding, 10) / 100 : parseInt(padding, 10);
+	};
+	/**
+	 * @private
+	 */
+	helpers$1._getParentNode = function(domNode) {
+		var parent = domNode.parentNode;
+		if (parent && parent.toString() === ''[object ShadowRoot]'') {
+			parent = parent.host;
+		}
+		return parent;
+	};
+	helpers$1.getMaximumWidth = function(domNode) {
+		var container = helpers$1._getParentNode(domNode);
+		if (!container) {
+			return domNode.clientWidth;
+		}
 
-			canvas.width = this.chart.width = newWidth;
-			canvas.height = this.chart.height = newHeight;
+		var clientWidth = container.clientWidth;
+		var paddingLeft = helpers$1._calculatePadding(container, ''padding-left'', clientWidth);
+		var paddingRight = helpers$1._calculatePadding(container, ''padding-right'', clientWidth);
 
-			retinaScale(this.chart);
+		var w = clientWidth - paddingLeft - paddingRight;
+		var cw = helpers$1.getConstraintWidth(domNode);
+		return isNaN(cw) ? w : Math.min(w, cw);
+	};
+	helpers$1.getMaximumHeight = function(domNode) {
+		var container = helpers$1._getParentNode(domNode);
+		if (!container) {
+			return domNode.clientHeight;
+		}
+
+		var clientHeight = container.clientHeight;
+		var paddingTop = helpers$1._calculatePadding(container, ''padding-top'', clientHeight);
+		var paddingBottom = helpers$1._calculatePadding(container, ''padding-bottom'', clientHeight);
+
+		var h = clientHeight - paddingTop - paddingBottom;
+		var ch = helpers$1.getConstraintHeight(domNode);
+		return isNaN(ch) ? h : Math.min(h, ch);
+	};
+	helpers$1.getStyle = function(el, property) {
+		return el.currentStyle ?
+			el.currentStyle[property] :
+			document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
+	};
+	helpers$1.retinaScale = function(chart, forceRatio) {
+		var pixelRatio = chart.currentDevicePixelRatio = forceRatio || (typeof window !== ''undefined'' && window.devicePixelRatio) || 1;
+		if (pixelRatio === 1) {
+			return;
+		}
+
+		var canvas = chart.canvas;
+		var height = chart.height;
+		var width = chart.width;
+
+		canvas.height = height * pixelRatio;
+		canvas.width = width * pixelRatio;
+		chart.ctx.scale(pixelRatio, pixelRatio);
+
+		// If no style has been set on the canvas, the render size is used as display size,
+		// making the chart visually bigger, so let''s enforce it to the "correct" values.
+		// See https://github.com/chartjs/Chart.js/issues/3575
+		if (!canvas.style.height && !canvas.style.width) {
+			canvas.style.height = height + ''px'';
+			canvas.style.width = width + ''px'';
+		}
+	};
+	// -- Canvas methods
+	helpers$1.fontString = function(pixelSize, fontStyle, fontFamily) {
+		return fontStyle + '' '' + pixelSize + ''px '' + fontFamily;
+	};
+	helpers$1.longestText = function(ctx, font, arrayOfThings, cache) {
+		cache = cache || {};
+		var data = cache.data = cache.data || {};
+		var gc = cache.garbageCollect = cache.garbageCollect || [];
+
+		if (cache.font !== font) {
+			data = cache.data = {};
+			gc = cache.garbageCollect = [];
+			cache.font = font;
+		}
+
+		ctx.font = font;
+		var longest = 0;
+		helpers$1.each(arrayOfThings, function(thing) {
+			// Undefined strings and arrays should not be measured
+			if (thing !== undefined && thing !== null && helpers$1.isArray(thing) !== true) {
+				longest = helpers$1.measureText(ctx, data, gc, longest, thing);
+			} else if (helpers$1.isArray(thing)) {
+				// if it is an array lets measure each element
+				// to do maybe simplify this function a bit so we can do this more recursively?
+				helpers$1.each(thing, function(nestedThing) {
+					// Undefined strings and arrays should not be measured
+					if (nestedThing !== undefined && nestedThing !== null && !helpers$1.isArray(nestedThing)) {
+						longest = helpers$1.measureText(ctx, data, gc, longest, nestedThing);
+					}
+				});
+			}
+		});
 
-			if (typeof callback === "function"){
-				callback.apply(this, Array.prototype.slice.call(arguments, 1));
+		var gcLen = gc.length / 2;
+		if (gcLen > arrayOfThings.length) {
+			for (var i = 0; i < gcLen; i++) {
+				delete data[gc[i]];
 			}
-			return this;
-		},
-		reflow : noop,
-		render : function(reflow){
-			if (reflow){
-				this.reflow();
-			}
-			if (this.options.animation && !reflow){
-				helpers.animationLoop(
-					this.draw,
-					this.options.animationSteps,
-					this.options.animationEasing,
-					this.options.onAnimationProgress,
-					this.options.onAnimationComplete,
-					this
-				);
+			gc.splice(0, gcLen);
+		}
+		return longest;
+	};
+	helpers$1.measureText = function(ctx, data, gc, longest, string) {
+		var textWidth = data[string];
+		if (!textWidth) {
+			textWidth = data[string] = ctx.measureText(string).width;
+			gc.push(string);
+		}
+		if (textWidth > longest) {
+			longest = textWidth;
+		}
+		return longest;
+	};
+	helpers$1.numberOfLabelLines = function(arrayOfThings) {
+		var numberOfLines = 1;
+		helpers$1.each(arrayOfThings, function(thing) {
+			if (helpers$1.isArray(thing)) {
+				if (thing.length > numberOfLines) {
+					numberOfLines = thing.length;
+				}
 			}
-			else{
-				this.draw();
-				this.options.onAnimationComplete.call(this);
+		});
+		return numberOfLines;
+	};
+
+	helpers$1.color = !chartjsColor ?
+		function(value) {
+			console.error(''Color.js not found!'');
+			return value;
+		} :
+		function(value) {
+			/* global CanvasGradient */
+			if (value instanceof CanvasGradient) {
+				value = core_defaults.global.defaultColor;
 			}
-			return this;
-		},
-		generateLegend : function(){
-			return template(this.options.legendTemplate,this);
+
+			return chartjsColor(value);
+		};
+
+	helpers$1.getHoverColor = function(colorValue) {
+		/* global CanvasPattern */
+		return (colorValue instanceof CanvasPattern || colorValue instanceof CanvasGradient) ?
+			colorValue :
+			helpers$1.color(colorValue).saturate(0.5).darken(0.1).rgbString();
+	};
+};
+
+function abstract() {
+	throw new Error(
+		''This method is not implemented: either no adapter can '' +
+		''be found or an incomplete integration was provided.''
+	);
+}
+
+/**
+ * Date adapter (current used by the time scale)
+ * @namespace Chart._adapters._date
+ * @memberof Chart._adapters
+ * @private
+ */
+
+/**
+ * Currently supported unit string values.
+ * @typedef {(''millisecond''|''second''|''minute''|''hour''|''day''|''week''|''month''|''quarter''|''year'')}
+ * @memberof Chart._adapters._date
+ * @name Unit
+ */
+
+/**
+ * @class
+ */
+function DateAdapter(options) {
+	this.options = options || {};
+}
+
+helpers$1.extend(DateAdapter.prototype, /** @lends DateAdapter */ {
+	/**
+	 * Returns a map of time formats for the supported formatting units defined
+	 * in Unit as well as ''datetime'' representing a detailed date/time string.
+	 * @returns {{string: string}}
+	 */
+	formats: abstract,
+
+	/**
+	 * Parses the given `value` and return the associated timestamp.
+	 * @param {any} value - the value to parse (usually comes from the data)
+	 * @param {string} [format] - the expected data format
+	 * @returns {(number|null)}
+	 * @function
+	 */
+	parse: abstract,
+
+	/**
+	 * Returns the formatted date in the specified `format` for a given `timestamp`.
+	 * @param {number} timestamp - the timestamp to format
+	 * @param {string} format - the date/time token
+	 * @return {string}
+	 * @function
+	 */
+	format: abstract,
+
+	/**
+	 * Adds the specified `amount` of `unit` to the given `timestamp`.
+	 * @param {number} timestamp - the input timestamp
+	 * @param {number} amount - the amount to add
+	 * @param {Unit} unit - the unit as string
+	 * @return {number}
+	 * @function
+	 */
+	add: abstract,
+
+	/**
+	 * Returns the number of `unit` between the given timestamps.
+	 * @param {number} max - the input timestamp (reference)
+	 * @param {number} min - the timestamp to substract
+	 * @param {Unit} unit - the unit as string
+	 * @return {number}
+	 * @function
+	 */
+	diff: abstract,
+
+	/**
+	 * Returns start of `unit` for the given `timestamp`.
+	 * @param {number} timestamp - the input timestamp
+	 * @param {Unit} unit - the unit as string
+	 * @param {number} [weekday] - the ISO day of the week with 1 being Monday
+	 * and 7 being Sunday (only needed if param *unit* is `isoWeek`).
+	 * @function
+	 */
+	startOf: abstract,
+
+	/**
+	 * Returns end of `unit` for the given `timestamp`.
+	 * @param {number} timestamp - the input timestamp
+	 * @param {Unit} unit - the unit as string
+	 * @function
+	 */
+	endOf: abstract,
+
+	// DEPRECATIONS
+
+	/**
+	 * Provided for backward compatibility for scale.getValueForPixel(),
+	 * this method should be overridden only by the moment adapter.
+	 * @deprecated since version 2.8.0
+	 * @todo remove at version 3
+	 * @private
+	 */
+	_create: function(value) {
+		return value;
+	}
+});
+
+DateAdapter.override = function(members) {
+	helpers$1.extend(DateAdapter.prototype, members);
+};
+
+var _date = DateAdapter;
+
+var core_adapters = {
+	_date: _date
+};
+
+/**
+ * Namespace to hold static tick generation functions
+ * @namespace Chart.Ticks
+ */
+var core_ticks = {
+	/**
+	 * Namespace to hold formatters for different types of ticks
+	 * @namespace Chart.Ticks.formatters
+	 */
+	formatters: {
+		/**
+		 * Formatter for value labels
+		 * @method Chart.Ticks.formatters.values
+		 * @param value the value to display
+		 * @return {string|string[]} the label to display
+		 */
+		values: function(value) {
+			return helpers$1.isArray(value) ? value : '''' + value;
 		},
-		destroy : function(){
-			this.clear();
-			unbindEvents(this, this.events);
-			var canvas = this.chart.canvas;
-
-			// Reset canvas height/width attributes starts a fresh with the canvas context
-			canvas.width = this.chart.width;
-			canvas.height = this.chart.height;
-
-			// < IE9 doesn''t support removeProperty
-			if (canvas.style.removeProperty) {
-				canvas.style.removeProperty(''width'');
-				canvas.style.removeProperty(''height'');
+
+		/**
+		 * Formatter for linear numeric ticks
+		 * @method Chart.Ticks.formatters.linear
+		 * @param tickValue {number} the value to be formatted
+		 * @param index {number} the position of the tickValue parameter in the ticks array
+		 * @param ticks {number[]} the list of ticks being converted
+		 * @return {string} string representation of the tickValue parameter
+		 */
+		linear: function(tickValue, index, ticks) {
+			// If we have lots of ticks, don''t use the ones
+			var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];
+
+			// If we have a number like 2.5 as the delta, figure out how many decimal places we need
+			if (Math.abs(delta) > 1) {
+				if (tickValue !== Math.floor(tickValue)) {
+					// not an integer
+					delta = tickValue - Math.floor(tickValue);
+				}
+			}
+
+			var logDelta = helpers$1.log10(Math.abs(delta));
+			var tickString = '''';
+
+			if (tickValue !== 0) {
+				var maxTick = Math.max(Math.abs(ticks[0]), Math.abs(ticks[ticks.length - 1]));
+				if (maxTick < 1e-4) { // all ticks are small numbers; use scientific notation
+					var logTick = helpers$1.log10(Math.abs(tickValue));
+					tickString = tickValue.toExponential(Math.floor(logTick) - Math.floor(logDelta));
+				} else {
+					var numDecimal = -1 * Math.floor(logDelta);
+					numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
+					tickString = tickValue.toFixed(numDecimal);
+				}
 			} else {
-				canvas.style.removeAttribute(''width'');
-				canvas.style.removeAttribute(''height'');
+				tickString = ''0''; // never show decimal places for 0
 			}
 
-			delete Chart.instances[this.id];
+			return tickString;
 		},
-		showTooltip : function(ChartElements, forceRedraw){
-			// Only redraw the chart if we''ve actually changed what we''re hovering on.
-			if (typeof this.activeElements === ''undefined'') this.activeElements = [];
 
-			var isChanged = (function(Elements){
-				var changed = false;
+		logarithmic: function(tickValue, index, ticks) {
+			var remain = tickValue / (Math.pow(10, Math.floor(helpers$1.log10(tickValue))));
+
+			if (tickValue === 0) {
+				return ''0'';
+			} else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
+				return tickValue.toExponential();
+			}
+			return '''';
+		}
+	}
+};
+
+var valueOrDefault$9 = helpers$1.valueOrDefault;
+var valueAtIndexOrDefault = helpers$1.valueAtIndexOrDefault;
+
+core_defaults._set(''scale'', {
+	display: true,
+	position: ''left'',
+	offset: false,
 
-				if (Elements.length !== this.activeElements.length){
-					changed = true;
-					return changed;
+	// grid line settings
+	gridLines: {
+		display: true,
+		color: ''rgba(0, 0, 0, 0.1)'',
+		lineWidth: 1,
+		drawBorder: true,
+		drawOnChartArea: true,
+		drawTicks: true,
+		tickMarkLength: 10,
+		zeroLineWidth: 1,
+		zeroLineColor: ''rgba(0,0,0,0.25)'',
+		zeroLineBorderDash: [],
+		zeroLineBorderDashOffset: 0.0,
+		offsetGridLines: false,
+		borderDash: [],
+		borderDashOffset: 0.0
+	},
+
+	// scale label
+	scaleLabel: {
+		// display property
+		display: false,
+
+		// actual label
+		labelString: '''',
+
+		// top/bottom padding
+		padding: {
+			top: 4,
+			bottom: 4
+		}
+	},
+
+	// label settings
+	ticks: {
+		beginAtZero: false,
+		minRotation: 0,
+		maxRotation: 50,
+		mirror: false,
+		padding: 0,
+		reverse: false,
+		display: true,
+		autoSkip: true,
+		autoSkipPadding: 0,
+		labelOffset: 0,
+		// We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
+		callback: core_ticks.formatters.values,
+		minor: {},
+		major: {}
+	}
+});
+
+function labelsFromTicks(ticks) {
+	var labels = [];
+	var i, ilen;
+
+	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
+		labels.push(ticks[i].label);
+	}
+
+	return labels;
+}
+
+function getPixelForGridLine(scale, index, offsetGridLines) {
+	var lineValue = scale.getPixelForTick(index);
+
+	if (offsetGridLines) {
+		if (scale.getTicks().length === 1) {
+			lineValue -= scale.isHorizontal() ?
+				Math.max(lineValue - scale.left, scale.right - lineValue) :
+				Math.max(lineValue - scale.top, scale.bottom - lineValue);
+		} else if (index === 0) {
+			lineValue -= (scale.getPixelForTick(1) - lineValue) / 2;
+		} else {
+			lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2;
+		}
+	}
+	return lineValue;
+}
+
+function computeTextSize(context, tick, font) {
+	return helpers$1.isArray(tick) ?
+		helpers$1.longestText(context, font, tick) :
+		context.measureText(tick).width;
+}
+
+var core_scale = core_element.extend({
+	/**
+	 * Get the padding needed for the scale
+	 * @method getPadding
+	 * @private
+	 * @returns {Padding} the necessary padding
+	 */
+	getPadding: function() {
+		var me = this;
+		return {
+			left: me.paddingLeft || 0,
+			top: me.paddingTop || 0,
+			right: me.paddingRight || 0,
+			bottom: me.paddingBottom || 0
+		};
+	},
+
+	/**
+	 * Returns the scale tick objects ({label, major})
+	 * @since 2.7
+	 */
+	getTicks: function() {
+		return this._ticks;
+	},
+
+	// These methods are ordered by lifecyle. Utilities then follow.
+	// Any function defined here is inherited by all scale types.
+	// Any function can be extended by the scale type
+
+	mergeTicksOptions: function() {
+		var ticks = this.options.ticks;
+		if (ticks.minor === false) {
+			ticks.minor = {
+				display: false
+			};
+		}
+		if (ticks.major === false) {
+			ticks.major = {
+				display: false
+			};
+		}
+		for (var key in ticks) {
+			if (key !== ''major'' && key !== ''minor'') {
+				if (typeof ticks.minor[key] === ''undefined'') {
+					ticks.minor[key] = ticks[key];
+				}
+				if (typeof ticks.major[key] === ''undefined'') {
+					ticks.major[key] = ticks[key];
 				}
+			}
+		}
+	},
+	beforeUpdate: function() {
+		helpers$1.callback(this.options.beforeUpdate, [this]);
+	},
+
+	update: function(maxWidth, maxHeight, margins) {
+		var me = this;
+		var i, ilen, labels, label, ticks, tick;
+
+		// Update Lifecycle - Probably don''t want to ever extend or overwrite this function ;)
+		me.beforeUpdate();
+
+		// Absorb the master measurements
+		me.maxWidth = maxWidth;
+		me.maxHeight = maxHeight;
+		me.margins = helpers$1.extend({
+			left: 0,
+			right: 0,
+			top: 0,
+			bottom: 0
+		}, margins);
+
+		me._maxLabelLines = 0;
+		me.longestLabelWidth = 0;
+		me.longestTextCache = me.longestTextCache || {};
+
+		// Dimensions
+		me.beforeSetDimensions();
+		me.setDimensions();
+		me.afterSetDimensions();
+
+		// Data min/max
+		me.beforeDataLimits();
+		me.determineDataLimits();
+		me.afterDataLimits();
+
+		// Ticks - `this.ticks` is now DEPRECATED!
+		// Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
+		// and must not be accessed directly from outside this class. `this.ticks` being
+		// around for long time and not marked as private, we can''t change its structure
+		// without unexpected breaking changes. If you need to access the scale ticks,
+		// use scale.getTicks() instead.
+
+		me.beforeBuildTicks();
+
+		// New implementations should return an array of objects but for BACKWARD COMPAT,
+		// we still support no return (`this.ticks` internally set by calling this method).
+		ticks = me.buildTicks() || [];
+
+		// Allow modification of ticks in callback.
+		ticks = me.afterBuildTicks(ticks) || ticks;
+
+		me.beforeTickToLabelConversion();
+
+		// New implementations should return the formatted tick labels but for BACKWARD
+		// COMPAT, we still support no return (`this.ticks` internally changed by calling
+		// this method and supposed to contain only string values).
+		labels = me.convertTicksToLabels(ticks) || me.ticks;
+
+		me.afterTickToLabelConversion();
+
+		me.ticks = labels;   // BACKWARD COMPATIBILITY
+
+		// IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!
+
+		// BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
+		for (i = 0, ilen = labels.length; i < ilen; ++i) {
+			label = labels[i];
+			tick = ticks[i];
+			if (!tick) {
+				ticks.push(tick = {
+					label: label,
+					major: false
+				});
+			} else {
+				tick.label = label;
+			}
+		}
 
-				each(Elements, function(element, index){
-					if (element !== this.activeElements[index]){
-						changed = true;
-					}
-				}, this);
-				return changed;
-			}).call(this, ChartElements);
+		me._ticks = ticks;
+
+		// Tick Rotation
+		me.beforeCalculateTickRotation();
+		me.calculateTickRotation();
+		me.afterCalculateTickRotation();
+		// Fit
+		me.beforeFit();
+		me.fit();
+		me.afterFit();
+		//
+		me.afterUpdate();
+
+		return me.minSize;
+
+	},
+	afterUpdate: function() {
+		helpers$1.callback(this.options.afterUpdate, [this]);
+	},
+
+	//
+
+	beforeSetDimensions: function() {
+		helpers$1.callback(this.options.beforeSetDimensions, [this]);
+	},
+	setDimensions: function() {
+		var me = this;
+		// Set the unconstrained dimension before label rotation
+		if (me.isHorizontal()) {
+			// Reset position before calculating rotation
+			me.width = me.maxWidth;
+			me.left = 0;
+			me.right = me.width;
+		} else {
+			me.height = me.maxHeight;
+
+			// Reset position before calculating rotation
+			me.top = 0;
+			me.bottom = me.height;
+		}
 
-			if (!isChanged && !forceRedraw){
-				return;
+		// Reset padding
+		me.paddingLeft = 0;
+		me.paddingTop = 0;
+		me.paddingRight = 0;
+		me.paddingBottom = 0;
+	},
+	afterSetDimensions: function() {
+		helpers$1.callback(this.options.afterSetDimensions, [this]);
+	},
+
+	// Data limits
+	beforeDataLimits: function() {
+		helpers$1.callback(this.options.beforeDataLimits, [this]);
+	},
+	determineDataLimits: helpers$1.noop,
+	afterDataLimits: function() {
+		helpers$1.callback(this.options.afterDataLimits, [this]);
+	},
+
+	//
+	beforeBuildTicks: function() {
+		helpers$1.callback(this.options.beforeBuildTicks, [this]);
+	},
+	buildTicks: helpers$1.noop,
+	afterBuildTicks: function(ticks) {
+		var me = this;
+		// ticks is empty for old axis implementations here
+		if (helpers$1.isArray(ticks) && ticks.length) {
+			return helpers$1.callback(me.options.afterBuildTicks, [me, ticks]);
+		}
+		// Support old implementations (that modified `this.ticks` directly in buildTicks)
+		me.ticks = helpers$1.callback(me.options.afterBuildTicks, [me, me.ticks]) || me.ticks;
+		return ticks;
+	},
+
+	beforeTickToLabelConversion: function() {
+		helpers$1.callback(this.options.beforeTickToLabelConversion, [this]);
+	},
+	convertTicksToLabels: function() {
+		var me = this;
+		// Convert ticks to strings
+		var tickOpts = me.options.ticks;
+		me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
+	},
+	afterTickToLabelConversion: function() {
+		helpers$1.callback(this.options.afterTickToLabelConversion, [this]);
+	},
+
+	//
+
+	beforeCalculateTickRotation: function() {
+		helpers$1.callback(this.options.beforeCalculateTickRotation, [this]);
+	},
+	calculateTickRotation: function() {
+		var me = this;
+		var context = me.ctx;
+		var tickOpts = me.options.ticks;
+		var labels = labelsFromTicks(me._ticks);
+
+		// Get the width of each grid by calculating the difference
+		// between x offsets between 0 and 1.
+		var tickFont = helpers$1.options._parseFont(tickOpts);
+		context.font = tickFont.string;
+
+		var labelRotation = tickOpts.minRotation || 0;
+
+		if (labels.length && me.options.display && me.isHorizontal()) {
+			var originalLabelWidth = helpers$1.longestText(context, tickFont.string, labels, me.longestTextCache);
+			var labelWidth = originalLabelWidth;
+			var cosRotation, sinRotation;
+
+			// Allow 3 pixels x2 padding either side for label readability
+			var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;
+
+			// Max label rotation can be set or default to 90 - also act as a loop counter
+			while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) {
+				var angleRadians = helpers$1.toRadians(labelRotation);
+				cosRotation = Math.cos(angleRadians);
+				sinRotation = Math.sin(angleRadians);
+
+				if (sinRotation * originalLabelWidth > me.maxHeight) {
+					// go back one step
+					labelRotation--;
+					break;
+				}
+
+				labelRotation++;
+				labelWidth = cosRotation * originalLabelWidth;
+			}
+		}
+
+		me.labelRotation = labelRotation;
+	},
+	afterCalculateTickRotation: function() {
+		helpers$1.callback(this.options.afterCalculateTickRotation, [this]);
+	},
+
+	//
+
+	beforeFit: function() {
+		helpers$1.callback(this.options.beforeFit, [this]);
+	},
+	fit: function() {
+		var me = this;
+		// Reset
+		var minSize = me.minSize = {
+			width: 0,
+			height: 0
+		};
+
+		var labels = labelsFromTicks(me._ticks);
+
+		var opts = me.options;
+		var tickOpts = opts.ticks;
+		var scaleLabelOpts = opts.scaleLabel;
+		var gridLineOpts = opts.gridLines;
+		var display = me._isVisible();
+		var position = opts.position;
+		var isHorizontal = me.isHorizontal();
+
+		var parseFont = helpers$1.options._parseFont;
+		var tickFont = parseFont(tickOpts);
+		var tickMarkLength = opts.gridLines.tickMarkLength;
+
+		// Width
+		if (isHorizontal) {
+			// subtract the margins to line up with the chartArea if we are a full width scale
+			minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
+		} else {
+			minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
+		}
+
+		// height
+		if (isHorizontal) {
+			minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
+		} else {
+			minSize.height = me.maxHeight; // fill all the height
+		}
+
+		// Are we showing a title for the scale?
+		if (scaleLabelOpts.display && display) {
+			var scaleLabelFont = parseFont(scaleLabelOpts);
+			var scaleLabelPadding = helpers$1.options.toPadding(scaleLabelOpts.padding);
+			var deltaHeight = scaleLabelFont.lineHeight + scaleLabelPadding.height;
+
+			if (isHorizontal) {
+				minSize.height += deltaHeight;
+			} else {
+				minSize.width += deltaHeight;
+			}
+		}
+
+		// Don''t bother fitting the ticks if we are not showing the labels
+		if (tickOpts.display && display) {
+			var largestTextWidth = helpers$1.longestText(me.ctx, tickFont.string, labels, me.longestTextCache);
+			var tallestLabelHeightInLines = helpers$1.numberOfLabelLines(labels);
+			var lineSpace = tickFont.size * 0.5;
+			var tickPadding = me.options.ticks.padding;
+
+			// Store max number of lines and widest label for _autoSkip
+			me._maxLabelLines = tallestLabelHeightInLines;
+			me.longestLabelWidth = largestTextWidth;
+
+			if (isHorizontal) {
+				var angleRadians = helpers$1.toRadians(me.labelRotation);
+				var cosRotation = Math.cos(angleRadians);
+				var sinRotation = Math.sin(angleRadians);
+
+				// TODO - improve this calculation
+				var labelHeight = (sinRotation * largestTextWidth)
+					+ (tickFont.lineHeight * tallestLabelHeightInLines)
+					+ lineSpace; // padding
+
+				minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);
+
+				me.ctx.font = tickFont.string;
+				var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.string);
+				var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.string);
+				var offsetLeft = me.getPixelForTick(0) - me.left;
+				var offsetRight = me.right - me.getPixelForTick(labels.length - 1);
+				var paddingLeft, paddingRight;
+
+				// Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
+				// which means that the right padding is dominated by the font height
+				if (me.labelRotation !== 0) {
+					paddingLeft = position === ''bottom'' ? (cosRotation * firstLabelWidth) : (cosRotation * lineSpace);
+					paddingRight = position === ''bottom'' ? (cosRotation * lineSpace) : (cosRotation * lastLabelWidth);
+				} else {
+					paddingLeft = firstLabelWidth / 2;
+					paddingRight = lastLabelWidth / 2;
+				}
+				me.paddingLeft = Math.max(paddingLeft - offsetLeft, 0) + 3; // add 3 px to move away from canvas edges
+				me.paddingRight = Math.max(paddingRight - offsetRight, 0) + 3;
+			} else {
+				// A vertical axis is more constrained by the width. Labels are the
+				// dominant factor here, so get that length first and account for padding
+				if (tickOpts.mirror) {
+					largestTextWidth = 0;
+				} else {
+					// use lineSpace for consistency with horizontal axis
+					// tickPadding is not implemented for horizontal
+					largestTextWidth += tickPadding + lineSpace;
+				}
+
+				minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth);
+
+				me.paddingTop = tickFont.size / 2;
+				me.paddingBottom = tickFont.size / 2;
+			}
+		}
+
+		me.handleMargins();
+
+		me.width = minSize.width;
+		me.height = minSize.height;
+	},
+
+	/**
+	 * Handle margins and padding interactions
+	 * @private
+	 */
+	handleMargins: function() {
+		var me = this;
+		if (me.margins) {
+			me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
+			me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
+			me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
+			me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
+		}
+	},
+
+	afterFit: function() {
+		helpers$1.callback(this.options.afterFit, [this]);
+	},
+
+	// Shared Methods
+	isHorizontal: function() {
+		return this.options.position === ''top'' || this.options.position === ''bottom'';
+	},
+	isFullWidth: function() {
+		return (this.options.fullWidth);
+	},
+
+	// Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
+	getRightValue: function(rawValue) {
+		// Null and undefined values first
+		if (helpers$1.isNullOrUndef(rawValue)) {
+			return NaN;
+		}
+		// isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
+		if ((typeof rawValue === ''number'' || rawValue instanceof Number) && !isFinite(rawValue)) {
+			return NaN;
+		}
+		// If it is in fact an object, dive in one more level
+		if (rawValue) {
+			if (this.isHorizontal()) {
+				if (rawValue.x !== undefined) {
+					return this.getRightValue(rawValue.x);
+				}
+			} else if (rawValue.y !== undefined) {
+				return this.getRightValue(rawValue.y);
+			}
+		}
+
+		// Value is good, return it
+		return rawValue;
+	},
+
+	/**
+	 * Used to get the value to display in the tooltip for the data at the given index
+	 * @param index
+	 * @param datasetIndex
+	 */
+	getLabelForIndex: helpers$1.noop,
+
+	/**
+	 * Returns the location of the given data point. Value can either be an index or a numerical value
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 * @param value
+	 * @param index
+	 * @param datasetIndex
+	 */
+	getPixelForValue: helpers$1.noop,
+
+	/**
+	 * Used to get the data value from a given pixel. This is the inverse of getPixelForValue
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 * @param pixel
+	 */
+	getValueForPixel: helpers$1.noop,
+
+	/**
+	 * Returns the location of the tick at the given index
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 */
+	getPixelForTick: function(index) {
+		var me = this;
+		var offset = me.options.offset;
+		if (me.isHorizontal()) {
+			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
+			var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
+			var pixel = (tickWidth * index) + me.paddingLeft;
+
+			if (offset) {
+				pixel += tickWidth / 2;
+			}
+
+			var finalVal = me.left + pixel;
+			finalVal += me.isFullWidth() ? me.margins.left : 0;
+			return finalVal;
+		}
+		var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
+		return me.top + (index * (innerHeight / (me._ticks.length - 1)));
+	},
+
+	/**
+	 * Utility for getting the pixel location of a percentage of scale
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 */
+	getPixelForDecimal: function(decimal) {
+		var me = this;
+		if (me.isHorizontal()) {
+			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
+			var valueOffset = (innerWidth * decimal) + me.paddingLeft;
+
+			var finalVal = me.left + valueOffset;
+			finalVal += me.isFullWidth() ? me.margins.left : 0;
+			return finalVal;
+		}
+		return me.top + (decimal * me.height);
+	},
+
+	/**
+	 * Returns the pixel for the minimum chart value
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 */
+	getBasePixel: function() {
+		return this.getPixelForValue(this.getBaseValue());
+	},
+
+	getBaseValue: function() {
+		var me = this;
+		var min = me.min;
+		var max = me.max;
+
+		return me.beginAtZero ? 0 :
+			min < 0 && max < 0 ? max :
+			min > 0 && max > 0 ? min :
+			0;
+	},
+
+	/**
+	 * Returns a subset of ticks to be plotted to avoid overlapping labels.
+	 * @private
+	 */
+	_autoSkip: function(ticks) {
+		var me = this;
+		var isHorizontal = me.isHorizontal();
+		var optionTicks = me.options.ticks.minor;
+		var tickCount = ticks.length;
+		var skipRatio = false;
+		var maxTicks = optionTicks.maxTicksLimit;
+
+		// Total space needed to display all ticks. First and last ticks are
+		// drawn as their center at end of axis, so tickCount-1
+		var ticksLength = me._tickSize() * (tickCount - 1);
+
+		// Axis length
+		var axisLength = isHorizontal
+			? me.width - (me.paddingLeft + me.paddingRight)
+			: me.height - (me.paddingTop + me.PaddingBottom);
+
+		var result = [];
+		var i, tick;
+
+		if (ticksLength > axisLength) {
+			skipRatio = 1 + Math.floor(ticksLength / axisLength);
+		}
+
+		// if they defined a max number of optionTicks,
+		// increase skipRatio until that number is met
+		if (tickCount > maxTicks) {
+			skipRatio = Math.max(skipRatio, 1 + Math.floor(tickCount / maxTicks));
+		}
+
+		for (i = 0; i < tickCount; i++) {
+			tick = ticks[i];
+
+			if (skipRatio > 1 && i % skipRatio > 0) {
+				// leave tick in place but make sure it''s not displayed (#4635)
+				delete tick.label;
+			}
+			result.push(tick);
+		}
+		return result;
+	},
+
+	/**
+	 * @private
+	 */
+	_tickSize: function() {
+		var me = this;
+		var isHorizontal = me.isHorizontal();
+		var optionTicks = me.options.ticks.minor;
+
+		// Calculate space needed by label in axis direction.
+		var rot = helpers$1.toRadians(me.labelRotation);
+		var cos = Math.abs(Math.cos(rot));
+		var sin = Math.abs(Math.sin(rot));
+
+		var padding = optionTicks.autoSkipPadding || 0;
+		var w = (me.longestLabelWidth + padding) || 0;
+
+		var tickFont = helpers$1.options._parseFont(optionTicks);
+		var h = (me._maxLabelLines * tickFont.lineHeight + padding) || 0;
+
+		// Calculate space needed for 1 tick in axis direction.
+		return isHorizontal
+			? h * cos > w * sin ? w / cos : h / sin
+			: h * sin < w * cos ? h / cos : w / sin;
+	},
+
+	/**
+	 * @private
+	 */
+	_isVisible: function() {
+		var me = this;
+		var chart = me.chart;
+		var display = me.options.display;
+		var i, ilen, meta;
+
+		if (display !== ''auto'') {
+			return !!display;
+		}
+
+		// When ''auto'', the scale is visible if at least one associated dataset is visible.
+		for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
+			if (chart.isDatasetVisible(i)) {
+				meta = chart.getDatasetMeta(i);
+				if (meta.xAxisID === me.id || meta.yAxisID === me.id) {
+					return true;
+				}
 			}
-			else{
-				this.activeElements = ChartElements;
+		}
+
+		return false;
+	},
+
+	/**
+	 * Actually draw the scale on the canvas
+	 * @param {object} chartArea - the area of the chart to draw full grid lines on
+	 */
+	draw: function(chartArea) {
+		var me = this;
+		var options = me.options;
+
+		if (!me._isVisible()) {
+			return;
+		}
+
+		var chart = me.chart;
+		var context = me.ctx;
+		var globalDefaults = core_defaults.global;
+		var defaultFontColor = globalDefaults.defaultFontColor;
+		var optionTicks = options.ticks.minor;
+		var optionMajorTicks = options.ticks.major || optionTicks;
+		var gridLines = options.gridLines;
+		var scaleLabel = options.scaleLabel;
+		var position = options.position;
+
+		var isRotated = me.labelRotation !== 0;
+		var isMirrored = optionTicks.mirror;
+		var isHorizontal = me.isHorizontal();
+
+		var parseFont = helpers$1.options._parseFont;
+		var ticks = optionTicks.display && optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks();
+		var tickFontColor = valueOrDefault$9(optionTicks.fontColor, defaultFontColor);
+		var tickFont = parseFont(optionTicks);
+		var lineHeight = tickFont.lineHeight;
+		var majorTickFontColor = valueOrDefault$9(optionMajorTicks.fontColor, defaultFontColor);
+		var majorTickFont = parseFont(optionMajorTicks);
+		var tickPadding = optionTicks.padding;
+		var labelOffset = optionTicks.labelOffset;
+
+		var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0;
+
+		var scaleLabelFontColor = valueOrDefault$9(scaleLabel.fontColor, defaultFontColor);
+		var scaleLabelFont = parseFont(scaleLabel);
+		var scaleLabelPadding = helpers$1.options.toPadding(scaleLabel.padding);
+		var labelRotationRadians = helpers$1.toRadians(me.labelRotation);
+
+		var itemsToDraw = [];
+
+		var axisWidth = gridLines.drawBorder ? valueAtIndexOrDefault(gridLines.lineWidth, 0, 0) : 0;
+		var alignPixel = helpers$1._alignPixel;
+		var borderValue, tickStart, tickEnd;
+
+		if (position === ''top'') {
+			borderValue = alignPixel(chart, me.bottom, axisWidth);
+			tickStart = me.bottom - tl;
+			tickEnd = borderValue - axisWidth / 2;
+		} else if (position === ''bottom'') {
+			borderValue = alignPixel(chart, me.top, axisWidth);
+			tickStart = borderValue + axisWidth / 2;
+			tickEnd = me.top + tl;
+		} else if (position === ''left'') {
+			borderValue = alignPixel(chart, me.right, axisWidth);
+			tickStart = me.right - tl;
+			tickEnd = borderValue - axisWidth / 2;
+		} else {
+			borderValue = alignPixel(chart, me.left, axisWidth);
+			tickStart = borderValue + axisWidth / 2;
+			tickEnd = me.left + tl;
+		}
+
+		var epsilon = 0.0000001; // 0.0000001 is margin in pixels for Accumulated error.
+
+		helpers$1.each(ticks, function(tick, index) {
+			// autoskipper skipped this tick (#4635)
+			if (helpers$1.isNullOrUndef(tick.label)) {
+				return;
 			}
-			this.draw();
-			if(this.options.customTooltips){
-				this.options.customTooltips(false);
+
+			var label = tick.label;
+			var lineWidth, lineColor, borderDash, borderDashOffset;
+			if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) {
+				// Draw the first index specially
+				lineWidth = gridLines.zeroLineWidth;
+				lineColor = gridLines.zeroLineColor;
+				borderDash = gridLines.zeroLineBorderDash || [];
+				borderDashOffset = gridLines.zeroLineBorderDashOffset || 0.0;
+			} else {
+				lineWidth = valueAtIndexOrDefault(gridLines.lineWidth, index);
+				lineColor = valueAtIndexOrDefault(gridLines.color, index);
+				borderDash = gridLines.borderDash || [];
+				borderDashOffset = gridLines.borderDashOffset || 0.0;
 			}
-			if (ChartElements.length > 0){
-				// If we have multiple datasets, show a MultiTooltip for all of the data points at that index
-				if (this.datasets && this.datasets.length > 1) {
-					var dataArray,
-						dataIndex;
 
-					for (var i = this.datasets.length - 1; i >= 0; i--) {
-						dataArray = this.datasets[i].points || this.datasets[i].bars || this.datasets[i].segments;
-						dataIndex = indexOf(dataArray, ChartElements[0]);
-						if (dataIndex !== -1){
-							break;
-						}
-					}
-					var tooltipLabels = [],
-						tooltipColors = [],
-						medianPosition = (function(index) {
-
-							// Get all the points at that particular index
-							var Elements = [],
-								dataCollection,
-								xPositions = [],
-								yPositions = [],
-								xMax,
-								yMax,
-								xMin,
-								yMin;
-							helpers.each(this.datasets, function(dataset){
-								dataCollection = dataset.points || dataset.bars || dataset.segments;
-								if (dataCollection[dataIndex] && dataCollection[dataIndex].hasValue()){
-									Elements.push(dataCollection[dataIndex]);
-								}
-							});
-
-							helpers.each(Elements, function(element) {
-								xPositions.push(element.x);
-								yPositions.push(element.y);
-
-
-								//Include any colour information about the element
-								tooltipLabels.push(helpers.template(this.options.multiTooltipTemplate, element));
-								tooltipColors.push({
-									fill: element._saved.fillColor || element.fillColor,
-									stroke: element._saved.strokeColor || element.strokeColor
-								});
-
-							}, this);
-
-							yMin = min(yPositions);
-							yMax = max(yPositions);
-
-							xMin = min(xPositions);
-							xMax = max(xPositions);
-
-							return {
-								x: (xMin > this.chart.width/2) ? xMin : xMax,
-								y: (yMin + yMax)/2
-							};
-						}).call(this, dataIndex);
-
-					new Chart.MultiTooltip({
-						x: medianPosition.x,
-						y: medianPosition.y,
-						xPadding: this.options.tooltipXPadding,
-						yPadding: this.options.tooltipYPadding,
-						xOffset: this.options.tooltipXOffset,
-						fillColor: this.options.tooltipFillColor,
-						textColor: this.options.tooltipFontColor,
-						fontFamily: this.options.tooltipFontFamily,
-						fontStyle: this.options.tooltipFontStyle,
-						fontSize: this.options.tooltipFontSize,
-						titleTextColor: this.options.tooltipTitleFontColor,
-						titleFontFamily: this.options.tooltipTitleFontFamily,
-						titleFontStyle: this.options.tooltipTitleFontStyle,
-						titleFontSize: this.options.tooltipTitleFontSize,
-						cornerRadius: this.options.tooltipCornerRadius,
-						labels: tooltipLabels,
-						legendColors: tooltipColors,
-						legendColorBackground : this.options.multiTooltipKeyBackground,
-						title: ChartElements[0].label,
-						chart: this.chart,
-						ctx: this.chart.ctx,
-						custom: this.options.customTooltips
-					}).draw();
+			// Common properties
+			var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY, textOffset, textAlign;
+			var labelCount = helpers$1.isArray(label) ? label.length : 1;
+			var lineValue = getPixelForGridLine(me, index, gridLines.offsetGridLines);
+
+			if (isHorizontal) {
+				var labelYOffset = tl + tickPadding;
+
+				if (lineValue < me.left - epsilon) {
+					lineColor = ''rgba(0,0,0,0)'';
+				}
+
+				tx1 = tx2 = x1 = x2 = alignPixel(chart, lineValue, lineWidth);
+				ty1 = tickStart;
+				ty2 = tickEnd;
+				labelX = me.getPixelForTick(index) + labelOffset; // x values for optionTicks (need to consider offsetLabel option)
+
+				if (position === ''top'') {
+					y1 = alignPixel(chart, chartArea.top, axisWidth) + axisWidth / 2;
+					y2 = chartArea.bottom;
+					textOffset = ((!isRotated ? 0.5 : 1) - labelCount) * lineHeight;
+					textAlign = !isRotated ? ''center'' : ''left'';
+					labelY = me.bottom - labelYOffset;
+				} else {
+					y1 = chartArea.top;
+					y2 = alignPixel(chart, chartArea.bottom, axisWidth) - axisWidth / 2;
+					textOffset = (!isRotated ? 0.5 : 0) * lineHeight;
+					textAlign = !isRotated ? ''center'' : ''right'';
+					labelY = me.top + labelYOffset;
+				}
+			} else {
+				var labelXOffset = (isMirrored ? 0 : tl) + tickPadding;
+
+				if (lineValue < me.top - epsilon) {
+					lineColor = ''rgba(0,0,0,0)'';
+				}
 
+				tx1 = tickStart;
+				tx2 = tickEnd;
+				ty1 = ty2 = y1 = y2 = alignPixel(chart, lineValue, lineWidth);
+				labelY = me.getPixelForTick(index) + labelOffset;
+				textOffset = (1 - labelCount) * lineHeight / 2;
+
+				if (position === ''left'') {
+					x1 = alignPixel(chart, chartArea.left, axisWidth) + axisWidth / 2;
+					x2 = chartArea.right;
+					textAlign = isMirrored ? ''left'' : ''right'';
+					labelX = me.right - labelXOffset;
 				} else {
-					each(ChartElements, function(Element) {
-						var tooltipPosition = Element.tooltipPosition();
-						new Chart.Tooltip({
-							x: Math.round(tooltipPosition.x),
-							y: Math.round(tooltipPosition.y),
-							xPadding: this.options.tooltipXPadding,
-							yPadding: this.options.tooltipYPadding,
-							fillColor: this.options.tooltipFillColor,
-							textColor: this.options.tooltipFontColor,
-							fontFamily: this.options.tooltipFontFamily,
-							fontStyle: this.options.tooltipFontStyle,
-							fontSize: this.options.tooltipFontSize,
-							caretHeight: this.options.tooltipCaretSize,
-							cornerRadius: this.options.tooltipCornerRadius,
-							text: template(this.options.tooltipTemplate, Element),
-							chart: this.chart,
-							custom: this.options.customTooltips
-						}).draw();
-					}, this);
+					x1 = chartArea.left;
+					x2 = alignPixel(chart, chartArea.right, axisWidth) - axisWidth / 2;
+					textAlign = isMirrored ? ''right'' : ''left'';
+					labelX = me.left + labelXOffset;
 				}
 			}
-			return this;
-		},
-		toBase64Image : function(){
-			return this.chart.canvas.toDataURL.apply(this.chart.canvas, arguments);
-		}
-	});
 
-	Chart.Type.extend = function(extensions){
+			itemsToDraw.push({
+				tx1: tx1,
+				ty1: ty1,
+				tx2: tx2,
+				ty2: ty2,
+				x1: x1,
+				y1: y1,
+				x2: x2,
+				y2: y2,
+				labelX: labelX,
+				labelY: labelY,
+				glWidth: lineWidth,
+				glColor: lineColor,
+				glBorderDash: borderDash,
+				glBorderDashOffset: borderDashOffset,
+				rotation: -1 * labelRotationRadians,
+				label: label,
+				major: tick.major,
+				textOffset: textOffset,
+				textAlign: textAlign
+			});
+		});
 
-		var parent = this;
+		// Draw all of the tick labels, tick marks, and grid lines at the correct places
+		helpers$1.each(itemsToDraw, function(itemToDraw) {
+			var glWidth = itemToDraw.glWidth;
+			var glColor = itemToDraw.glColor;
+
+			if (gridLines.display && glWidth && glColor) {
+				context.save();
+				context.lineWidth = glWidth;
+				context.strokeStyle = glColor;
+				if (context.setLineDash) {
+					context.setLineDash(itemToDraw.glBorderDash);
+					context.lineDashOffset = itemToDraw.glBorderDashOffset;
+				}
 
-		var ChartType = function(){
-			return parent.apply(this,arguments);
-		};
+				context.beginPath();
 
-		//Copy the prototype object of the this class
-		ChartType.prototype = clone(parent.prototype);
-		//Now overwrite some of the properties in the base class with the new extensions
-		extend(ChartType.prototype, extensions);
+				if (gridLines.drawTicks) {
+					context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
+					context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
+				}
 
-		ChartType.extend = Chart.Type.extend;
+				if (gridLines.drawOnChartArea) {
+					context.moveTo(itemToDraw.x1, itemToDraw.y1);
+					context.lineTo(itemToDraw.x2, itemToDraw.y2);
+				}
 
-		if (extensions.name || parent.prototype.name){
+				context.stroke();
+				context.restore();
+			}
 
-			var chartName = extensions.name || parent.prototype.name;
-			//Assign any potential default values of the new chart type
+			if (optionTicks.display) {
+				// Make sure we draw text in the correct color and font
+				context.save();
+				context.translate(itemToDraw.labelX, itemToDraw.labelY);
+				context.rotate(itemToDraw.rotation);
+				context.font = itemToDraw.major ? majorTickFont.string : tickFont.string;
+				context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor;
+				context.textBaseline = ''middle'';
+				context.textAlign = itemToDraw.textAlign;
+
+				var label = itemToDraw.label;
+				var y = itemToDraw.textOffset;
+				if (helpers$1.isArray(label)) {
+					for (var i = 0; i < label.length; ++i) {
+						// We just make sure the multiline element is a string here..
+						context.fillText('''' + label[i], 0, y);
+						y += lineHeight;
+					}
+				} else {
+					context.fillText(label, 0, y);
+				}
+				context.restore();
+			}
+		});
 
-			//If none are defined, we''ll use a clone of the chart type this is being extended from.
-			//I.e. if we extend a line chart, we''ll use the defaults from the line chart if our new chart
-			//doesn''t define some defaults of their own.
+		if (scaleLabel.display) {
+			// Draw the scale label
+			var scaleLabelX;
+			var scaleLabelY;
+			var rotation = 0;
+			var halfLineHeight = scaleLabelFont.lineHeight / 2;
+
+			if (isHorizontal) {
+				scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
+				scaleLabelY = position === ''bottom''
+					? me.bottom - halfLineHeight - scaleLabelPadding.bottom
+					: me.top + halfLineHeight + scaleLabelPadding.top;
+			} else {
+				var isLeft = position === ''left'';
+				scaleLabelX = isLeft
+					? me.left + halfLineHeight + scaleLabelPadding.top
+					: me.right - halfLineHeight - scaleLabelPadding.top;
+				scaleLabelY = me.top + ((me.bottom - me.top) / 2);
+				rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
+			}
 
-			var baseDefaults = (Chart.defaults[parent.prototype.name]) ? clone(Chart.defaults[parent.prototype.name]) : {};
+			context.save();
+			context.translate(scaleLabelX, scaleLabelY);
+			context.rotate(rotation);
+			context.textAlign = ''center'';
+			context.textBaseline = ''middle'';
+			context.fillStyle = scaleLabelFontColor; // render in correct colour
+			context.font = scaleLabelFont.string;
+			context.fillText(scaleLabel.labelString, 0, 0);
+			context.restore();
+		}
 
-			Chart.defaults[chartName] = extend(baseDefaults,extensions.defaults);
+		if (axisWidth) {
+			// Draw the line at the edge of the axis
+			var firstLineWidth = axisWidth;
+			var lastLineWidth = valueAtIndexOrDefault(gridLines.lineWidth, ticks.length - 1, 0);
+			var x1, x2, y1, y2;
 
-			Chart.types[chartName] = ChartType;
+			if (isHorizontal) {
+				x1 = alignPixel(chart, me.left, firstLineWidth) - firstLineWidth / 2;
+				x2 = alignPixel(chart, me.right, lastLineWidth) + lastLineWidth / 2;
+				y1 = y2 = borderValue;
+			} else {
+				y1 = alignPixel(chart, me.top, firstLineWidth) - firstLineWidth / 2;
+				y2 = alignPixel(chart, me.bottom, lastLineWidth) + lastLineWidth / 2;
+				x1 = x2 = borderValue;
+			}
 
-			//Register this new chart type in the Chart prototype
-			Chart.prototype[chartName] = function(data,options){
-				var config = merge(Chart.defaults.global, Chart.defaults[chartName], options || {});
-				return new ChartType(data,config,this);
-			};
-		} else{
-			warn("Name not provided for this chart, so it hasn''t been registered");
+			context.lineWidth = axisWidth;
+			context.strokeStyle = valueAtIndexOrDefault(gridLines.color, 0);
+			context.beginPath();
+			context.moveTo(x1, y1);
+			context.lineTo(x2, y2);
+			context.stroke();
+		}
+	}
+});
+
+var defaultConfig = {
+	position: ''bottom''
+};
+
+var scale_category = core_scale.extend({
+	/**
+	* Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use those
+	* else fall back to data.labels
+	* @private
+	*/
+	getLabels: function() {
+		var data = this.chart.data;
+		return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
+	},
+
+	determineDataLimits: function() {
+		var me = this;
+		var labels = me.getLabels();
+		me.minIndex = 0;
+		me.maxIndex = labels.length - 1;
+		var findIndex;
+
+		if (me.options.ticks.min !== undefined) {
+			// user specified min value
+			findIndex = labels.indexOf(me.options.ticks.min);
+			me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
 		}
-		return parent;
-	};
 
-	Chart.Element = function(configuration){
-		extend(this,configuration);
-		this.initialize.apply(this,arguments);
-		this.save();
-	};
-	extend(Chart.Element.prototype,{
-		initialize : function(){},
-		restore : function(props){
-			if (!props){
-				extend(this,this._saved);
-			} else {
-				each(props,function(key){
-					this[key] = this._saved[key];
-				},this);
-			}
-			return this;
-		},
-		save : function(){
-			this._saved = clone(this);
-			delete this._saved._saved;
-			return this;
-		},
-		update : function(newProps){
-			each(newProps,function(value,key){
-				this._saved[key] = this[key];
-				this[key] = value;
-			},this);
-			return this;
-		},
-		transition : function(props,ease){
-			each(props,function(value,key){
-				this[key] = ((value - this._saved[key]) * ease) + this._saved[key];
-			},this);
-			return this;
-		},
-		tooltipPosition : function(){
-			return {
-				x : this.x,
-				y : this.y
-			};
-		},
-		hasValue: function(){
-			return isNumber(this.value);
+		if (me.options.ticks.max !== undefined) {
+			// user specified max value
+			findIndex = labels.indexOf(me.options.ticks.max);
+			me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
 		}
-	});
 
-	Chart.Element.extend = inherits;
+		me.min = labels[me.minIndex];
+		me.max = labels[me.maxIndex];
+	},
 
+	buildTicks: function() {
+		var me = this;
+		var labels = me.getLabels();
+		// If we are viewing some subset of labels, slice the original array
+		me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
+	},
 
-	Chart.Point = Chart.Element.extend({
-		display: true,
-		inRange: function(chartX,chartY){
-			var hitDetectionRange = this.hitDetectionRadius + this.radius;
-			return ((Math.pow(chartX-this.x, 2)+Math.pow(chartY-this.y, 2)) < Math.pow(hitDetectionRange,2));
-		},
-		draw : function(){
-			if (this.display){
-				var ctx = this.ctx;
-				ctx.beginPath();
+	getLabelForIndex: function(index, datasetIndex) {
+		var me = this;
+		var chart = me.chart;
 
-				ctx.arc(this.x, this.y, this.radius, 0, Math.PI*2);
-				ctx.closePath();
+		if (chart.getDatasetMeta(datasetIndex).controller._getValueScaleId() === me.id) {
+			return me.getRightValue(chart.data.datasets[datasetIndex].data[index]);
+		}
 
-				ctx.strokeStyle = this.strokeColor;
-				ctx.lineWidth = this.strokeWidth;
+		return me.ticks[index - me.minIndex];
+	},
+
+	// Used to get data value locations.  Value can either be an index or a numerical value
+	getPixelForValue: function(value, index) {
+		var me = this;
+		var offset = me.options.offset;
+		// 1 is added because we need the length but we have the indexes
+		var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - (offset ? 0 : 1)), 1);
+
+		// If value is a data object, then index is the index in the data array,
+		// not the index of the scale. We need to change that.
+		var valueCategory;
+		if (value !== undefined && value !== null) {
+			valueCategory = me.isHorizontal() ? value.x : value.y;
+		}
+		if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
+			var labels = me.getLabels();
+			value = valueCategory || value;
+			var idx = labels.indexOf(value);
+			index = idx !== -1 ? idx : index;
+		}
 
-				ctx.fillStyle = this.fillColor;
+		if (me.isHorizontal()) {
+			var valueWidth = me.width / offsetAmt;
+			var widthOffset = (valueWidth * (index - me.minIndex));
 
-				ctx.fill();
-				ctx.stroke();
+			if (offset) {
+				widthOffset += (valueWidth / 2);
 			}
 
+			return me.left + widthOffset;
+		}
+		var valueHeight = me.height / offsetAmt;
+		var heightOffset = (valueHeight * (index - me.minIndex));
 
-			//Quick debug for bezier curve splining
-			//Highlights control points and the line between them.
-			//Handy for dev - stripped in the min version.
-
-			// ctx.save();
-			// ctx.fillStyle = "black";
-			// ctx.strokeStyle = "black"
-			// ctx.beginPath();
-			// ctx.arc(this.controlPoints.inner.x,this.controlPoints.inner.y, 2, 0, Math.PI*2);
-			// ctx.fill();
+		if (offset) {
+			heightOffset += (valueHeight / 2);
+		}
 
-			// ctx.beginPath();
-			// ctx.arc(this.controlPoints.outer.x,this.controlPoints.outer.y, 2, 0, Math.PI*2);
-			// ctx.fill();
+		return me.top + heightOffset;
+	},
 
-			// ctx.moveTo(this.controlPoints.inner.x,this.controlPoints.inner.y);
-			// ctx.lineTo(this.x, this.y);
-			// ctx.lineTo(this.controlPoints.outer.x,this.controlPoints.outer.y);
-			// ctx.stroke();
+	getPixelForTick: function(index) {
+		return this.getPixelForValue(this.ticks[index], index + this.minIndex, null);
+	},
 
-			// ctx.restore();
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var offset = me.options.offset;
+		var value;
+		var offsetAmt = Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
+		var horz = me.isHorizontal();
+		var valueDimension = (horz ? me.width : me.height) / offsetAmt;
 
+		pixel -= horz ? me.left : me.top;
 
+		if (offset) {
+			pixel -= (valueDimension / 2);
+		}
 
+		if (pixel <= 0) {
+			value = 0;
+		} else {
+			value = Math.round(pixel / valueDimension);
 		}
-	});
 
-	Chart.Arc = Chart.Element.extend({
-		inRange : function(chartX,chartY){
+		return value + me.minIndex;
+	},
 
-			var pointRelativePosition = helpers.getAngleFromPoint(this, {
-				x: chartX,
-				y: chartY
-			});
+	getBasePixel: function() {
+		return this.bottom;
+	}
+});
 
-			//Check if within the range of the open/close angle
-			var betweenAngles = (pointRelativePosition.angle >= this.startAngle && pointRelativePosition.angle <= this.endAngle),
-				withinRadius = (pointRelativePosition.distance >= this.innerRadius && pointRelativePosition.distance <= this.outerRadius);
+// INTERNAL: static default options, registered in src/index.js
+var _defaults = defaultConfig;
+scale_category._defaults = _defaults;
 
-			return (betweenAngles && withinRadius);
-			//Ensure within the outside of the arc centre, but inside arc outer
-		},
-		tooltipPosition : function(){
-			var centreAngle = this.startAngle + ((this.endAngle - this.startAngle) / 2),
-				rangeFromCentre = (this.outerRadius - this.innerRadius) / 2 + this.innerRadius;
-			return {
-				x : this.x + (Math.cos(centreAngle) * rangeFromCentre),
-				y : this.y + (Math.sin(centreAngle) * rangeFromCentre)
-			};
-		},
-		draw : function(animationPercent){
+var noop = helpers$1.noop;
+var isNullOrUndef = helpers$1.isNullOrUndef;
 
-			var easingDecimal = animationPercent || 1;
+/**
+ * Generate a set of linear ticks
+ * @param generationOptions the options used to generate the ticks
+ * @param dataRange the range of the data
+ * @returns {number[]} array of tick values
+ */
+function generateTicks(generationOptions, dataRange) {
+	var ticks = [];
+	// To get a "nice" value for the tick spacing, we will use the appropriately named
+	// "nice number" algorithm. See https://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
+	// for details.
+
+	var MIN_SPACING = 1e-14;
+	var stepSize = generationOptions.stepSize;
+	var unit = stepSize || 1;
+	var maxNumSpaces = generationOptions.maxTicks - 1;
+	var min = generationOptions.min;
+	var max = generationOptions.max;
+	var precision = generationOptions.precision;
+	var rmin = dataRange.min;
+	var rmax = dataRange.max;
+	var spacing = helpers$1.niceNum((rmax - rmin) / maxNumSpaces / unit) * unit;
+	var factor, niceMin, niceMax, numSpaces;
+
+	// Beyond MIN_SPACING floating point numbers being to lose precision
+	// such that we can''t do the math necessary to generate ticks
+	if (spacing < MIN_SPACING && isNullOrUndef(min) && isNullOrUndef(max)) {
+		return [rmin, rmax];
+	}
 
-			var ctx = this.ctx;
+	numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);
+	if (numSpaces > maxNumSpaces) {
+		// If the calculated num of spaces exceeds maxNumSpaces, recalculate it
+		spacing = helpers$1.niceNum(numSpaces * spacing / maxNumSpaces / unit) * unit;
+	}
 
-			ctx.beginPath();
+	if (stepSize || isNullOrUndef(precision)) {
+		// If a precision is not specified, calculate factor based on spacing
+		factor = Math.pow(10, helpers$1.decimalPlaces(spacing));
+	} else {
+		// If the user specified a precision, round to that number of decimal places
+		factor = Math.pow(10, precision);
+		spacing = Math.ceil(spacing * factor) / factor;
+	}
 
-			ctx.arc(this.x, this.y, this.outerRadius, this.startAngle, this.endAngle);
+	niceMin = Math.floor(rmin / spacing) * spacing;
+	niceMax = Math.ceil(rmax / spacing) * spacing;
 
-			ctx.arc(this.x, this.y, this.innerRadius, this.endAngle, this.startAngle, true);
+	// If min, max and stepSize is set and they make an evenly spaced scale use it.
+	if (stepSize) {
+		// If very close to our whole number, use it.
+		if (!isNullOrUndef(min) && helpers$1.almostWhole(min / spacing, spacing / 1000)) {
+			niceMin = min;
+		}
+		if (!isNullOrUndef(max) && helpers$1.almostWhole(max / spacing, spacing / 1000)) {
+			niceMax = max;
+		}
+	}
 
-			ctx.closePath();
-			ctx.strokeStyle = this.strokeColor;
-			ctx.lineWidth = this.strokeWidth;
+	numSpaces = (niceMax - niceMin) / spacing;
+	// If very close to our rounded value, use it.
+	if (helpers$1.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
+		numSpaces = Math.round(numSpaces);
+	} else {
+		numSpaces = Math.ceil(numSpaces);
+	}
 
-			ctx.fillStyle = this.fillColor;
+	niceMin = Math.round(niceMin * factor) / factor;
+	niceMax = Math.round(niceMax * factor) / factor;
+	ticks.push(isNullOrUndef(min) ? niceMin : min);
+	for (var j = 1; j < numSpaces; ++j) {
+		ticks.push(Math.round((niceMin + j * spacing) * factor) / factor);
+	}
+	ticks.push(isNullOrUndef(max) ? niceMax : max);
 
-			ctx.fill();
-			ctx.lineJoin = ''bevel'';
+	return ticks;
+}
 
-			if (this.showStroke){
-				ctx.stroke();
+var scale_linearbase = core_scale.extend({
+	getRightValue: function(value) {
+		if (typeof value === ''string'') {
+			return +value;
+		}
+		return core_scale.prototype.getRightValue.call(this, value);
+	},
+
+	handleTickRangeOptions: function() {
+		var me = this;
+		var opts = me.options;
+		var tickOpts = opts.ticks;
+
+		// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
+		// do nothing since that would make the chart weird. If the user really wants a weird chart
+		// axis, they can manually override it
+		if (tickOpts.beginAtZero) {
+			var minSign = helpers$1.sign(me.min);
+			var maxSign = helpers$1.sign(me.max);
+
+			if (minSign < 0 && maxSign < 0) {
+				// move the top up to 0
+				me.max = 0;
+			} else if (minSign > 0 && maxSign > 0) {
+				// move the bottom down to 0
+				me.min = 0;
 			}
 		}
-	});
 
-	Chart.Rectangle = Chart.Element.extend({
-		draw : function(){
-			var ctx = this.ctx,
-				halfWidth = this.width/2,
-				leftX = this.x - halfWidth,
-				rightX = this.x + halfWidth,
-				top = this.base - (this.base - this.y),
-				halfStroke = this.strokeWidth / 2;
+		var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
+		var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;
+
+		if (tickOpts.min !== undefined) {
+			me.min = tickOpts.min;
+		} else if (tickOpts.suggestedMin !== undefined) {
+			if (me.min === null) {
+				me.min = tickOpts.suggestedMin;
+			} else {
+				me.min = Math.min(me.min, tickOpts.suggestedMin);
+			}
+		}
 
-			// Canvas doesn''t allow us to stroke inside the width so we can
-			// adjust the sizes to fit if we''re setting a stroke on the line
-			if (this.showStroke){
-				leftX += halfStroke;
-				rightX -= halfStroke;
-				top += halfStroke;
+		if (tickOpts.max !== undefined) {
+			me.max = tickOpts.max;
+		} else if (tickOpts.suggestedMax !== undefined) {
+			if (me.max === null) {
+				me.max = tickOpts.suggestedMax;
+			} else {
+				me.max = Math.max(me.max, tickOpts.suggestedMax);
 			}
+		}
 
-			ctx.beginPath();
+		if (setMin !== setMax) {
+			// We set the min or the max but not both.
+			// So ensure that our range is good
+			// Inverted or 0 length range can happen when
+			// ticks.min is set, and no datasets are visible
+			if (me.min >= me.max) {
+				if (setMin) {
+					me.max = me.min + 1;
+				} else {
+					me.min = me.max - 1;
+				}
+			}
+		}
 
-			ctx.fillStyle = this.fillColor;
-			ctx.strokeStyle = this.strokeColor;
-			ctx.lineWidth = this.strokeWidth;
+		if (me.min === me.max) {
+			me.max++;
 
-			// It''d be nice to keep this class totally generic to any rectangle
-			// and simply specify which border to miss out.
-			ctx.moveTo(leftX, this.base);
-			ctx.lineTo(leftX, top);
-			ctx.lineTo(rightX, top);
-			ctx.lineTo(rightX, this.base);
-			ctx.fill();
-			if (this.showStroke){
-				ctx.stroke();
+			if (!tickOpts.beginAtZero) {
+				me.min--;
 			}
-		},
-		height : function(){
-			return this.base - this.y;
-		},
-		inRange : function(chartX,chartY){
-			return (chartX >= this.x - this.width/2 && chartX <= this.x + this.width/2) && (chartY >= this.y && chartY <= this.base);
 		}
-	});
+	},
+
+	getTickLimit: function() {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var stepSize = tickOpts.stepSize;
+		var maxTicksLimit = tickOpts.maxTicksLimit;
+		var maxTicks;
+
+		if (stepSize) {
+			maxTicks = Math.ceil(me.max / stepSize) - Math.floor(me.min / stepSize) + 1;
+		} else {
+			maxTicks = me._computeTickLimit();
+			maxTicksLimit = maxTicksLimit || 11;
+		}
 
-	Chart.Tooltip = Chart.Element.extend({
-		draw : function(){
+		if (maxTicksLimit) {
+			maxTicks = Math.min(maxTicksLimit, maxTicks);
+		}
 
-			var ctx = this.chart.ctx;
+		return maxTicks;
+	},
+
+	_computeTickLimit: function() {
+		return Number.POSITIVE_INFINITY;
+	},
+
+	handleDirectionalChanges: noop,
+
+	buildTicks: function() {
+		var me = this;
+		var opts = me.options;
+		var tickOpts = opts.ticks;
+
+		// Figure out what the max number of ticks we can support it is based on the size of
+		// the axis area. For now, we say that the minimum tick spacing in pixels must be 40
+		// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
+		// the graph. Make sure we always have at least 2 ticks
+		var maxTicks = me.getTickLimit();
+		maxTicks = Math.max(2, maxTicks);
+
+		var numericGeneratorOptions = {
+			maxTicks: maxTicks,
+			min: tickOpts.min,
+			max: tickOpts.max,
+			precision: tickOpts.precision,
+			stepSize: helpers$1.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
+		};
+		var ticks = me.ticks = generateTicks(numericGeneratorOptions, me);
 
-			ctx.font = fontString(this.fontSize,this.fontStyle,this.fontFamily);
+		me.handleDirectionalChanges();
 
-			this.xAlign = "center";
-			this.yAlign = "above";
+		// At this point, we need to update our max and min given the tick values since we have expanded the
+		// range of the scale
+		me.max = helpers$1.max(ticks);
+		me.min = helpers$1.min(ticks);
 
-			//Distance between the actual element.y position and the start of the tooltip caret
-			var caretPadding = this.caretPadding = 2;
+		if (tickOpts.reverse) {
+			ticks.reverse();
 
-			var tooltipWidth = ctx.measureText(this.text).width + 2*this.xPadding,
-				tooltipRectHeight = this.fontSize + 2*this.yPadding,
-				tooltipHeight = tooltipRectHeight + this.caretHeight + caretPadding;
+			me.start = me.max;
+			me.end = me.min;
+		} else {
+			me.start = me.min;
+			me.end = me.max;
+		}
+	},
 
-			if (this.x + tooltipWidth/2 >this.chart.width){
-				this.xAlign = "left";
-			} else if (this.x - tooltipWidth/2 < 0){
-				this.xAlign = "right";
-			}
+	convertTicksToLabels: function() {
+		var me = this;
+		me.ticksAsNumbers = me.ticks.slice();
+		me.zeroLineIndex = me.ticks.indexOf(0);
 
-			if (this.y - tooltipHeight < 0){
-				this.yAlign = "below";
-			}
+		core_scale.prototype.convertTicksToLabels.call(me);
+	}
+});
 
+var defaultConfig$1 = {
+	position: ''left'',
+	ticks: {
+		callback: core_ticks.formatters.linear
+	}
+};
+
+var scale_linear = scale_linearbase.extend({
+	determineDataLimits: function() {
+		var me = this;
+		var opts = me.options;
+		var chart = me.chart;
+		var data = chart.data;
+		var datasets = data.datasets;
+		var isHorizontal = me.isHorizontal();
+		var DEFAULT_MIN = 0;
+		var DEFAULT_MAX = 1;
+
+		function IDMatches(meta) {
+			return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
+		}
 
-			var tooltipX = this.x - tooltipWidth/2,
-				tooltipY = this.y - tooltipHeight;
+		// First Calculate the range
+		me.min = null;
+		me.max = null;
 
-			ctx.fillStyle = this.fillColor;
+		var hasStacks = opts.stacked;
+		if (hasStacks === undefined) {
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				if (hasStacks) {
+					return;
+				}
 
-			// Custom Tooltips
-			if(this.custom){
-				this.custom(this);
-			}
-			else{
-				switch(this.yAlign)
-				{
-				case "above":
-					//Draw a caret above the x/y
-					ctx.beginPath();
-					ctx.moveTo(this.x,this.y - caretPadding);
-					ctx.lineTo(this.x + this.caretHeight, this.y - (caretPadding + this.caretHeight));
-					ctx.lineTo(this.x - this.caretHeight, this.y - (caretPadding + this.caretHeight));
-					ctx.closePath();
-					ctx.fill();
-					break;
-				case "below":
-					tooltipY = this.y + caretPadding + this.caretHeight;
-					//Draw a caret below the x/y
-					ctx.beginPath();
-					ctx.moveTo(this.x, this.y + caretPadding);
-					ctx.lineTo(this.x + this.caretHeight, this.y + caretPadding + this.caretHeight);
-					ctx.lineTo(this.x - this.caretHeight, this.y + caretPadding + this.caretHeight);
-					ctx.closePath();
-					ctx.fill();
-					break;
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
+					meta.stack !== undefined) {
+					hasStacks = true;
 				}
+			});
+		}
 
-				switch(this.xAlign)
-				{
-				case "left":
-					tooltipX = this.x - tooltipWidth + (this.cornerRadius + this.caretHeight);
-					break;
-				case "right":
-					tooltipX = this.x - (this.cornerRadius + this.caretHeight);
-					break;
+		if (opts.stacked || hasStacks) {
+			var valuesPerStack = {};
+
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				var key = [
+					meta.type,
+					// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
+					((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''''),
+					meta.stack
+				].join(''.'');
+
+				if (valuesPerStack[key] === undefined) {
+					valuesPerStack[key] = {
+						positiveValues: [],
+						negativeValues: []
+					};
 				}
 
-				drawRoundedRectangle(ctx,tooltipX,tooltipY,tooltipWidth,tooltipRectHeight,this.cornerRadius);
+				// Store these per type
+				var positiveValues = valuesPerStack[key].positiveValues;
+				var negativeValues = valuesPerStack[key].negativeValues;
+
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var value = +me.getRightValue(rawValue);
+						if (isNaN(value) || meta.data[index].hidden) {
+							return;
+						}
 
-				ctx.fill();
+						positiveValues[index] = positiveValues[index] || 0;
+						negativeValues[index] = negativeValues[index] || 0;
 
-				ctx.fillStyle = this.textColor;
-				ctx.textAlign = "center";
-				ctx.textBaseline = "middle";
-				ctx.fillText(this.text, tooltipX + tooltipWidth/2, tooltipY + tooltipRectHeight/2);
-			}
-		}
-	});
+						if (opts.relativePoints) {
+							positiveValues[index] = 100;
+						} else if (value < 0) {
+							negativeValues[index] += value;
+						} else {
+							positiveValues[index] += value;
+						}
+					});
+				}
+			});
+
+			helpers$1.each(valuesPerStack, function(valuesForType) {
+				var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
+				var minVal = helpers$1.min(values);
+				var maxVal = helpers$1.max(values);
+				me.min = me.min === null ? minVal : Math.min(me.min, minVal);
+				me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
+			});
+
+		} else {
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var value = +me.getRightValue(rawValue);
+						if (isNaN(value) || meta.data[index].hidden) {
+							return;
+						}
 
-	Chart.MultiTooltip = Chart.Element.extend({
-		initialize : function(){
-			this.font = fontString(this.fontSize,this.fontStyle,this.fontFamily);
+						if (me.min === null) {
+							me.min = value;
+						} else if (value < me.min) {
+							me.min = value;
+						}
 
-			this.titleFont = fontString(this.titleFontSize,this.titleFontStyle,this.titleFontFamily);
+						if (me.max === null) {
+							me.max = value;
+						} else if (value > me.max) {
+							me.max = value;
+						}
+					});
+				}
+			});
+		}
 
-			this.height = (this.labels.length * this.fontSize) + ((this.labels.length-1) * (this.fontSize/2)) + (this.yPadding*2) + this.titleFontSize *1.5;
+		me.min = isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
+		me.max = isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;
 
-			this.ctx.font = this.titleFont;
+		// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
+		this.handleTickRangeOptions();
+	},
 
-			var titleWidth = this.ctx.measureText(this.title).width,
-				//Label has a legend square as well so account for this.
-				labelWidth = longestText(this.ctx,this.font,this.labels) + this.fontSize + 3,
-				longestTextWidth = max([labelWidth,titleWidth]);
+	// Returns the maximum number of ticks based on the scale dimension
+	_computeTickLimit: function() {
+		var me = this;
+		var tickFont;
 
-			this.width = longestTextWidth + (this.xPadding*2);
+		if (me.isHorizontal()) {
+			return Math.ceil(me.width / 40);
+		}
+		tickFont = helpers$1.options._parseFont(me.options.ticks);
+		return Math.ceil(me.height / tickFont.lineHeight);
+	},
+
+	// Called after the ticks are built. We need
+	handleDirectionalChanges: function() {
+		if (!this.isHorizontal()) {
+			// We are in a vertical orientation. The top value is the highest. So reverse the array
+			this.ticks.reverse();
+		}
+	},
+
+	getLabelForIndex: function(index, datasetIndex) {
+		return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
+	},
+
+	// Utils
+	getPixelForValue: function(value) {
+		// This must be called after fit has been run so that
+		// this.left, this.top, this.right, and this.bottom have been defined
+		var me = this;
+		var start = me.start;
+
+		var rightValue = +me.getRightValue(value);
+		var pixel;
+		var range = me.end - start;
+
+		if (me.isHorizontal()) {
+			pixel = me.left + (me.width / range * (rightValue - start));
+		} else {
+			pixel = me.bottom - (me.height / range * (rightValue - start));
+		}
+		return pixel;
+	},
+
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var isHorizontal = me.isHorizontal();
+		var innerDimension = isHorizontal ? me.width : me.height;
+		var offset = (isHorizontal ? pixel - me.left : me.bottom - pixel) / innerDimension;
+		return me.start + ((me.end - me.start) * offset);
+	},
+
+	getPixelForTick: function(index) {
+		return this.getPixelForValue(this.ticksAsNumbers[index]);
+	}
+});
 
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$1 = defaultConfig$1;
+scale_linear._defaults = _defaults$1;
 
-			var halfHeight = this.height/2;
+var valueOrDefault$a = helpers$1.valueOrDefault;
 
-			//Check to ensure the height will fit on the canvas
-			//The three is to buffer form the very
-			if (this.y - halfHeight < 0 ){
-				this.y = halfHeight;
-			} else if (this.y + halfHeight > this.chart.height){
-				this.y = this.chart.height - halfHeight;
-			}
+/**
+ * Generate a set of logarithmic ticks
+ * @param generationOptions the options used to generate the ticks
+ * @param dataRange the range of the data
+ * @returns {number[]} array of tick values
+ */
+function generateTicks$1(generationOptions, dataRange) {
+	var ticks = [];
 
-			//Decide whether to align left or right based on position on canvas
-			if (this.x > this.chart.width/2){
-				this.x -= this.xOffset + this.width;
-			} else {
-				this.x += this.xOffset;
-			}
+	var tickVal = valueOrDefault$a(generationOptions.min, Math.pow(10, Math.floor(helpers$1.log10(dataRange.min))));
 
+	var endExp = Math.floor(helpers$1.log10(dataRange.max));
+	var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
+	var exp, significand;
 
-		},
-		getLineHeight : function(index){
-			var baseLineHeight = this.y - (this.height/2) + this.yPadding,
-				afterTitleIndex = index-1;
+	if (tickVal === 0) {
+		exp = Math.floor(helpers$1.log10(dataRange.minNotZero));
+		significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));
 
-			//If the index is zero, we''re getting the title
-			if (index === 0){
-				return baseLineHeight + this.titleFontSize/2;
-			} else{
-				return baseLineHeight + ((this.fontSize*1.5*afterTitleIndex) + this.fontSize/2) + this.titleFontSize * 1.5;
-			}
+		ticks.push(tickVal);
+		tickVal = significand * Math.pow(10, exp);
+	} else {
+		exp = Math.floor(helpers$1.log10(tickVal));
+		significand = Math.floor(tickVal / Math.pow(10, exp));
+	}
+	var precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;
 
-		},
-		draw : function(){
-			// Custom Tooltips
-			if(this.custom){
-				this.custom(this);
-			}
-			else{
-				drawRoundedRectangle(this.ctx,this.x,this.y - this.height/2,this.width,this.height,this.cornerRadius);
-				var ctx = this.ctx;
-				ctx.fillStyle = this.fillColor;
-				ctx.fill();
-				ctx.closePath();
+	do {
+		ticks.push(tickVal);
 
-				ctx.textAlign = "left";
-				ctx.textBaseline = "middle";
-				ctx.fillStyle = this.titleTextColor;
-				ctx.font = this.titleFont;
+		++significand;
+		if (significand === 10) {
+			significand = 1;
+			++exp;
+			precision = exp >= 0 ? 1 : precision;
+		}
 
-				ctx.fillText(this.title,this.x + this.xPadding, this.getLineHeight(0));
+		tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
+	} while (exp < endExp || (exp === endExp && significand < endSignificand));
 
-				ctx.font = this.font;
-				helpers.each(this.labels,function(label,index){
-					ctx.fillStyle = this.textColor;
-					ctx.fillText(label,this.x + this.xPadding + this.fontSize + 3, this.getLineHeight(index + 1));
+	var lastTick = valueOrDefault$a(generationOptions.max, tickVal);
+	ticks.push(lastTick);
 
-					//A bit gnarly, but clearing this rectangle breaks when using explorercanvas (clears whole canvas)
-					//ctx.clearRect(this.x + this.xPadding, this.getLineHeight(index + 1) - this.fontSize/2, this.fontSize, this.fontSize);
-					//Instead we''ll make a white filled block to put the legendColour palette over.
+	return ticks;
+}
 
-					ctx.fillStyle = this.legendColorBackground;
-					ctx.fillRect(this.x + this.xPadding, this.getLineHeight(index + 1) - this.fontSize/2, this.fontSize, this.fontSize);
+var defaultConfig$2 = {
+	position: ''left'',
 
-					ctx.fillStyle = this.legendColors[index].fill;
-					ctx.fillRect(this.x + this.xPadding, this.getLineHeight(index + 1) - this.fontSize/2, this.fontSize, this.fontSize);
+	// label settings
+	ticks: {
+		callback: core_ticks.formatters.logarithmic
+	}
+};
 
+// TODO(v3): change this to positiveOrDefault
+function nonNegativeOrDefault(value, defaultValue) {
+	return helpers$1.isFinite(value) && value >= 0 ? value : defaultValue;
+}
 
-				},this);
-			}
+var scale_logarithmic = core_scale.extend({
+	determineDataLimits: function() {
+		var me = this;
+		var opts = me.options;
+		var chart = me.chart;
+		var data = chart.data;
+		var datasets = data.datasets;
+		var isHorizontal = me.isHorizontal();
+		function IDMatches(meta) {
+			return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
 		}
-	});
-
-	Chart.Scale = Chart.Element.extend({
-		initialize : function(){
-			this.fit();
-		},
-		buildYLabels : function(){
-			this.yLabels = [];
 
-			var stepDecimalPlaces = getDecimalPlaces(this.stepValue);
+		// Calculate Range
+		me.min = null;
+		me.max = null;
+		me.minNotZero = null;
 
-			for (var i=0; i<=this.steps; i++){
-				this.yLabels.push(template(this.templateString,{value:(this.min + (i * this.stepValue)).toFixed(stepDecimalPlaces)}));
-			}
-			this.yLabelWidth = (this.display && this.showLabels) ? longestText(this.ctx,this.font,this.yLabels) : 0;
-		},
-		addXLabel : function(label){
-			this.xLabels.push(label);
-			this.valuesCount++;
-			this.fit();
-		},
-		removeXLabel : function(){
-			this.xLabels.shift();
-			this.valuesCount--;
-			this.fit();
-		},
-		// Fitting loop to rotate x Labels and figure out what fits there, and also calculate how many Y steps to use
-		fit: function(){
-			// First we need the width of the yLabels, assuming the xLabels aren''t rotated
-
-			// To do that we need the base line at the top and base of the chart, assuming there is no x label rotation
-			this.startPoint = (this.display) ? this.fontSize : 0;
-			this.endPoint = (this.display) ? this.height - (this.fontSize * 1.5) - 5 : this.height; // -5 to pad labels
-
-			// Apply padding settings to the start and end point.
-			this.startPoint += this.padding;
-			this.endPoint -= this.padding;
-
-			// Cache the starting height, so can determine if we need to recalculate the scale yAxis
-			var cachedHeight = this.endPoint - this.startPoint,
-				cachedYLabelWidth;
-
-			// Build the current yLabels so we have an idea of what size they''ll be to start
-			/*
-			 *	This sets what is returned from calculateScaleRange as static properties of this class:
-			 *
-				this.steps;
-				this.stepValue;
-				this.min;
-				this.max;
-			 *
-			 */
-			this.calculateYRange(cachedHeight);
-
-			// With these properties set we can now build the array of yLabels
-			// and also the width of the largest yLabel
-			this.buildYLabels();
-
-			this.calculateXLabelRotation();
-
-			while((cachedHeight > this.endPoint - this.startPoint)){
-				cachedHeight = this.endPoint - this.startPoint;
-				cachedYLabelWidth = this.yLabelWidth;
-
-				this.calculateYRange(cachedHeight);
-				this.buildYLabels();
-
-				// Only go through the xLabel loop again if the yLabel width has changed
-				if (cachedYLabelWidth < this.yLabelWidth){
-					this.calculateXLabelRotation();
+		var hasStacks = opts.stacked;
+		if (hasStacks === undefined) {
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				if (hasStacks) {
+					return;
 				}
-			}
 
-		},
-		calculateXLabelRotation : function(){
-			//Get the width of each grid by calculating the difference
-			//between x offsets between 0 and 1.
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
+					meta.stack !== undefined) {
+					hasStacks = true;
+				}
+			});
+		}
 
-			this.ctx.font = this.font;
+		if (opts.stacked || hasStacks) {
+			var valuesPerStack = {};
+
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				var key = [
+					meta.type,
+					// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
+					((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''''),
+					meta.stack
+				].join(''.'');
+
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					if (valuesPerStack[key] === undefined) {
+						valuesPerStack[key] = [];
+					}
 
-			var firstWidth = this.ctx.measureText(this.xLabels[0]).width,
-				lastWidth = this.ctx.measureText(this.xLabels[this.xLabels.length - 1]).width,
-				firstRotated,
-				lastRotated;
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var values = valuesPerStack[key];
+						var value = +me.getRightValue(rawValue);
+						// invalid, hidden and negative values are ignored
+						if (isNaN(value) || meta.data[index].hidden || value < 0) {
+							return;
+						}
+						values[index] = values[index] || 0;
+						values[index] += value;
+					});
+				}
+			});
 
+			helpers$1.each(valuesPerStack, function(valuesForType) {
+				if (valuesForType.length > 0) {
+					var minVal = helpers$1.min(valuesForType);
+					var maxVal = helpers$1.max(valuesForType);
+					me.min = me.min === null ? minVal : Math.min(me.min, minVal);
+					me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
+				}
+			});
 
-			this.xScalePaddingRight = lastWidth/2 + 3;
-			this.xScalePaddingLeft = (firstWidth/2 > this.yLabelWidth + 10) ? firstWidth/2 : this.yLabelWidth + 10;
+		} else {
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var value = +me.getRightValue(rawValue);
+						// invalid, hidden and negative values are ignored
+						if (isNaN(value) || meta.data[index].hidden || value < 0) {
+							return;
+						}
 
-			this.xLabelRotation = 0;
-			if (this.display){
-				var originalLabelWidth = longestText(this.ctx,this.font,this.xLabels),
-					cosRotation,
-					firstRotatedWidth;
-				this.xLabelWidth = originalLabelWidth;
-				//Allow 3 pixels x2 padding either side for label readability
-				var xGridWidth = Math.floor(this.calculateX(1) - this.calculateX(0)) - 6;
+						if (me.min === null) {
+							me.min = value;
+						} else if (value < me.min) {
+							me.min = value;
+						}
 
-				//Max label rotate should be 90 - also act as a loop counter
-				while ((this.xLabelWidth > xGridWidth && this.xLabelRotation === 0) || (this.xLabelWidth > xGridWidth && this.xLabelRotation <= 90 && this.xLabelRotation > 0)){
-					cosRotation = Math.cos(toRadians(this.xLabelRotation));
+						if (me.max === null) {
+							me.max = value;
+						} else if (value > me.max) {
+							me.max = value;
+						}
 
-					firstRotated = cosRotation * firstWidth;
-					lastRotated = cosRotation * lastWidth;
+						if (value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
+							me.minNotZero = value;
+						}
+					});
+				}
+			});
+		}
 
-					// We''re right aligning the text now.
-					if (firstRotated + this.fontSize / 2 > this.yLabelWidth + 8){
-						this.xScalePaddingLeft = firstRotated + this.fontSize / 2;
-					}
-					this.xScalePaddingRight = this.fontSize/2;
+		// Common base implementation to handle ticks.min, ticks.max
+		this.handleTickRangeOptions();
+	},
 
+	handleTickRangeOptions: function() {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var DEFAULT_MIN = 1;
+		var DEFAULT_MAX = 10;
 
-					this.xLabelRotation++;
-					this.xLabelWidth = cosRotation * originalLabelWidth;
+		me.min = nonNegativeOrDefault(tickOpts.min, me.min);
+		me.max = nonNegativeOrDefault(tickOpts.max, me.max);
 
-				}
-				if (this.xLabelRotation > 0){
-					this.endPoint -= Math.sin(toRadians(this.xLabelRotation))*originalLabelWidth + 3;
-				}
+		if (me.min === me.max) {
+			if (me.min !== 0 && me.min !== null) {
+				me.min = Math.pow(10, Math.floor(helpers$1.log10(me.min)) - 1);
+				me.max = Math.pow(10, Math.floor(helpers$1.log10(me.max)) + 1);
+			} else {
+				me.min = DEFAULT_MIN;
+				me.max = DEFAULT_MAX;
 			}
-			else{
-				this.xLabelWidth = 0;
-				this.xScalePaddingRight = this.padding;
-				this.xScalePaddingLeft = this.padding;
+		}
+		if (me.min === null) {
+			me.min = Math.pow(10, Math.floor(helpers$1.log10(me.max)) - 1);
+		}
+		if (me.max === null) {
+			me.max = me.min !== 0
+				? Math.pow(10, Math.floor(helpers$1.log10(me.min)) + 1)
+				: DEFAULT_MAX;
+		}
+		if (me.minNotZero === null) {
+			if (me.min > 0) {
+				me.minNotZero = me.min;
+			} else if (me.max < 1) {
+				me.minNotZero = Math.pow(10, Math.floor(helpers$1.log10(me.max)));
+			} else {
+				me.minNotZero = DEFAULT_MIN;
 			}
+		}
+	},
 
-		},
-		// Needs to be overidden in each Chart type
-		// Otherwise we need to pass all the data into the scale class
-		calculateYRange: noop,
-		drawingArea: function(){
-			return this.startPoint - this.endPoint;
-		},
-		calculateY : function(value){
-			var scalingFactor = this.drawingArea() / (this.min - this.max);
-			return this.endPoint - (scalingFactor * (value - this.min));
-		},
-		calculateX : function(index){
-			var isRotated = (this.xLabelRotation > 0),
-				// innerWidth = (this.offsetGridLines) ? this.width - offsetLeft - this.padding : this.width - (offsetLeft + halfLabelWidth * 2) - this.padding,
-				innerWidth = this.width - (this.xScalePaddingLeft + this.xScalePaddingRight),
-				valueWidth = innerWidth/(this.valuesCount - ((this.offsetGridLines) ? 0 : 1)),
-				valueOffset = (valueWidth * index) + this.xScalePaddingLeft;
+	buildTicks: function() {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var reverse = !me.isHorizontal();
 
-			if (this.offsetGridLines){
-				valueOffset += (valueWidth/2);
+		var generationOptions = {
+			min: nonNegativeOrDefault(tickOpts.min),
+			max: nonNegativeOrDefault(tickOpts.max)
+		};
+		var ticks = me.ticks = generateTicks$1(generationOptions, me);
+
+		// At this point, we need to update our max and min given the tick values since we have expanded the
+		// range of the scale
+		me.max = helpers$1.max(ticks);
+		me.min = helpers$1.min(ticks);
+
+		if (tickOpts.reverse) {
+			reverse = !reverse;
+			me.start = me.max;
+			me.end = me.min;
+		} else {
+			me.start = me.min;
+			me.end = me.max;
+		}
+		if (reverse) {
+			ticks.reverse();
+		}
+	},
+
+	convertTicksToLabels: function() {
+		this.tickValues = this.ticks.slice();
+
+		core_scale.prototype.convertTicksToLabels.call(this);
+	},
+
+	// Get the correct tooltip label
+	getLabelForIndex: function(index, datasetIndex) {
+		return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
+	},
+
+	getPixelForTick: function(index) {
+		return this.getPixelForValue(this.tickValues[index]);
+	},
+
+	/**
+	 * Returns the value of the first tick.
+	 * @param {number} value - The minimum not zero value.
+	 * @return {number} The first tick value.
+	 * @private
+	 */
+	_getFirstTickValue: function(value) {
+		var exp = Math.floor(helpers$1.log10(value));
+		var significand = Math.floor(value / Math.pow(10, exp));
+
+		return significand * Math.pow(10, exp);
+	},
+
+	getPixelForValue: function(value) {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var reverse = tickOpts.reverse;
+		var log10 = helpers$1.log10;
+		var firstTickValue = me._getFirstTickValue(me.minNotZero);
+		var offset = 0;
+		var innerDimension, pixel, start, end, sign;
+
+		value = +me.getRightValue(value);
+		if (reverse) {
+			start = me.end;
+			end = me.start;
+			sign = -1;
+		} else {
+			start = me.start;
+			end = me.end;
+			sign = 1;
+		}
+		if (me.isHorizontal()) {
+			innerDimension = me.width;
+			pixel = reverse ? me.right : me.left;
+		} else {
+			innerDimension = me.height;
+			sign *= -1; // invert, since the upper-left corner of the canvas is at pixel (0, 0)
+			pixel = reverse ? me.top : me.bottom;
+		}
+		if (value !== start) {
+			if (start === 0) { // include zero tick
+				offset = valueOrDefault$a(tickOpts.fontSize, core_defaults.global.defaultFontSize);
+				innerDimension -= offset;
+				start = firstTickValue;
 			}
+			if (value !== 0) {
+				offset += innerDimension / (log10(end) - log10(start)) * (log10(value) - log10(start));
+			}
+			pixel += sign * offset;
+		}
+		return pixel;
+	},
+
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var reverse = tickOpts.reverse;
+		var log10 = helpers$1.log10;
+		var firstTickValue = me._getFirstTickValue(me.minNotZero);
+		var innerDimension, start, end, value;
+
+		if (reverse) {
+			start = me.end;
+			end = me.start;
+		} else {
+			start = me.start;
+			end = me.end;
+		}
+		if (me.isHorizontal()) {
+			innerDimension = me.width;
+			value = reverse ? me.right - pixel : pixel - me.left;
+		} else {
+			innerDimension = me.height;
+			value = reverse ? pixel - me.top : me.bottom - pixel;
+		}
+		if (value !== start) {
+			if (start === 0) { // include zero tick
+				var offset = valueOrDefault$a(tickOpts.fontSize, core_defaults.global.defaultFontSize);
+				value -= offset;
+				innerDimension -= offset;
+				start = firstTickValue;
+			}
+			value *= log10(end) - log10(start);
+			value /= innerDimension;
+			value = Math.pow(10, log10(start) + value);
+		}
+		return value;
+	}
+});
 
-			return Math.round(valueOffset);
-		},
-		update : function(newProps){
-			helpers.extend(this, newProps);
-			this.fit();
-		},
-		draw : function(){
-			var ctx = this.ctx,
-				yLabelGap = (this.endPoint - this.startPoint) / this.steps,
-				xStart = Math.round(this.xScalePaddingLeft);
-			if (this.display){
-				ctx.fillStyle = this.textColor;
-				ctx.font = this.font;
-				each(this.yLabels,function(labelString,index){
-					var yLabelCenter = this.endPoint - (yLabelGap * index),
-						linePositionY = Math.round(yLabelCenter),
-						drawHorizontalLine = this.showHorizontalLines;
-
-					ctx.textAlign = "right";
-					ctx.textBaseline = "middle";
-					if (this.showLabels){
-						ctx.fillText(labelString,xStart - 10,yLabelCenter);
-					}
-
-					// This is X axis, so draw it
-					if (index === 0 && !drawHorizontalLine){
-						drawHorizontalLine = true;
-					}
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$2 = defaultConfig$2;
+scale_logarithmic._defaults = _defaults$2;
 
-					if (drawHorizontalLine){
-						ctx.beginPath();
-					}
+var valueOrDefault$b = helpers$1.valueOrDefault;
+var valueAtIndexOrDefault$1 = helpers$1.valueAtIndexOrDefault;
+var resolve$7 = helpers$1.options.resolve;
 
-					if (index > 0){
-						// This is a grid line in the centre, so drop that
-						ctx.lineWidth = this.gridLineWidth;
-						ctx.strokeStyle = this.gridLineColor;
-					} else {
-						// This is the first line on the scale
-						ctx.lineWidth = this.lineWidth;
-						ctx.strokeStyle = this.lineColor;
-					}
+var defaultConfig$3 = {
+	display: true,
 
-					linePositionY += helpers.aliasPixel(ctx.lineWidth);
+	// Boolean - Whether to animate scaling the chart from the centre
+	animate: true,
+	position: ''chartArea'',
 
-					if(drawHorizontalLine){
-						ctx.moveTo(xStart, linePositionY);
-						ctx.lineTo(this.width, linePositionY);
-						ctx.stroke();
-						ctx.closePath();
-					}
+	angleLines: {
+		display: true,
+		color: ''rgba(0, 0, 0, 0.1)'',
+		lineWidth: 1,
+		borderDash: [],
+		borderDashOffset: 0.0
+	},
 
-					ctx.lineWidth = this.lineWidth;
-					ctx.strokeStyle = this.lineColor;
-					ctx.beginPath();
-					ctx.moveTo(xStart - 5, linePositionY);
-					ctx.lineTo(xStart, linePositionY);
-					ctx.stroke();
-					ctx.closePath();
+	gridLines: {
+		circular: false
+	},
 
-				},this);
+	// label settings
+	ticks: {
+		// Boolean - Show a backdrop to the scale label
+		showLabelBackdrop: true,
 
-				each(this.xLabels,function(label,index){
-					var xPos = this.calculateX(index) + aliasPixel(this.lineWidth),
-						// Check to see if line/bar here and decide where to place the line
-						linePos = this.calculateX(index - (this.offsetGridLines ? 0.5 : 0)) + aliasPixel(this.lineWidth),
-						isRotated = (this.xLabelRotation > 0),
-						drawVerticalLine = this.showVerticalLines;
+		// String - The colour of the label backdrop
+		backdropColor: ''rgba(255,255,255,0.75)'',
 
-					// This is Y axis, so draw it
-					if (index === 0 && !drawVerticalLine){
-						drawVerticalLine = true;
-					}
+		// Number - The backdrop padding above & below the label in pixels
+		backdropPaddingY: 2,
 
-					if (drawVerticalLine){
-						ctx.beginPath();
-					}
+		// Number - The backdrop padding to the side of the label in pixels
+		backdropPaddingX: 2,
 
-					if (index > 0){
-						// This is a grid line in the centre, so drop that
-						ctx.lineWidth = this.gridLineWidth;
-						ctx.strokeStyle = this.gridLineColor;
-					} else {
-						// This is the first line on the scale
-						ctx.lineWidth = this.lineWidth;
-						ctx.strokeStyle = this.lineColor;
-					}
+		callback: core_ticks.formatters.linear
+	},
 
-					if (drawVerticalLine){
-						ctx.moveTo(linePos,this.endPoint);
-						ctx.lineTo(linePos,this.startPoint - 3);
-						ctx.stroke();
-						ctx.closePath();
-					}
+	pointLabels: {
+		// Boolean - if true, show point labels
+		display: true,
 
+		// Number - Point label font size in pixels
+		fontSize: 10,
 
-					ctx.lineWidth = this.lineWidth;
-					ctx.strokeStyle = this.lineColor;
+		// Function - Used to convert point labels
+		callback: function(label) {
+			return label;
+		}
+	}
+};
 
+function getValueCount(scale) {
+	var opts = scale.options;
+	return opts.angleLines.display || opts.pointLabels.display ? scale.chart.data.labels.length : 0;
+}
 
-					// Small lines at the bottom of the base grid line
-					ctx.beginPath();
-					ctx.moveTo(linePos,this.endPoint);
-					ctx.lineTo(linePos,this.endPoint + 5);
-					ctx.stroke();
-					ctx.closePath();
+function getTickBackdropHeight(opts) {
+	var tickOpts = opts.ticks;
 
-					ctx.save();
-					ctx.translate(xPos,(isRotated) ? this.endPoint + 12 : this.endPoint + 8);
-					ctx.rotate(toRadians(this.xLabelRotation)*-1);
-					ctx.font = this.font;
-					ctx.textAlign = (isRotated) ? "right" : "center";
-					ctx.textBaseline = (isRotated) ? "middle" : "top";
-					ctx.fillText(label, 0, 0);
-					ctx.restore();
-				},this);
+	if (tickOpts.display && opts.display) {
+		return valueOrDefault$b(tickOpts.fontSize, core_defaults.global.defaultFontSize) + tickOpts.backdropPaddingY * 2;
+	}
+	return 0;
+}
 
-			}
-		}
+function measureLabelSize(ctx, lineHeight, label) {
+	if (helpers$1.isArray(label)) {
+		return {
+			w: helpers$1.longestText(ctx, ctx.font, label),
+			h: label.length * lineHeight
+		};
+	}
 
-	});
+	return {
+		w: ctx.measureText(label).width,
+		h: lineHeight
+	};
+}
 
-	Chart.RadialScale = Chart.Element.extend({
-		initialize: function(){
-			this.size = min([this.height, this.width]);
-			this.drawingArea = (this.display) ? (this.size/2) - (this.fontSize/2 + this.backdropPaddingY) : (this.size/2);
-		},
-		calculateCenterOffset: function(value){
-			// Take into account half font size + the yPadding of the top value
-			var scalingFactor = this.drawingArea / (this.max - this.min);
+function determineLimits(angle, pos, size, min, max) {
+	if (angle === min || angle === max) {
+		return {
+			start: pos - (size / 2),
+			end: pos + (size / 2)
+		};
+	} else if (angle < min || angle > max) {
+		return {
+			start: pos - size,
+			end: pos
+		};
+	}
 
-			return (value - this.min) * scalingFactor;
-		},
-		update : function(){
-			if (!this.lineArc){
-				this.setScaleSize();
-			} else {
-				this.drawingArea = (this.display) ? (this.size/2) - (this.fontSize/2 + this.backdropPaddingY) : (this.size/2);
-			}
-			this.buildYLabels();
-		},
-		buildYLabels: function(){
-			this.yLabels = [];
+	return {
+		start: pos,
+		end: pos + size
+	};
+}
 
-			var stepDecimalPlaces = getDecimalPlaces(this.stepValue);
+/**
+ * Helper function to fit a radial linear scale with point labels
+ */
+function fitWithPointLabels(scale) {
+
+	// Right, this is really confusing and there is a lot of maths going on here
+	// The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
+	//
+	// Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
+	//
+	// Solution:
+	//
+	// We assume the radius of the polygon is half the size of the canvas at first
+	// at each index we check if the text overlaps.
+	//
+	// Where it does, we store that angle and that index.
+	//
+	// After finding the largest index and angle we calculate how much we need to remove
+	// from the shape radius to move the point inwards by that x.
+	//
+	// We average the left and right distances to get the maximum shape radius that can fit in the box
+	// along with labels.
+	//
+	// Once we have that, we can find the centre point for the chart, by taking the x text protrusion
+	// on each side, removing that from the size, halving it and adding the left x protrusion width.
+	//
+	// This will mean we have a shape fitted to the canvas, as large as it can be with the labels
+	// and position it in the most space efficient manner
+	//
+	// https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
+
+	var plFont = helpers$1.options._parseFont(scale.options.pointLabels);
+
+	// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
+	// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
+	var furthestLimits = {
+		l: 0,
+		r: scale.width,
+		t: 0,
+		b: scale.height - scale.paddingTop
+	};
+	var furthestAngles = {};
+	var i, textSize, pointPosition;
+
+	scale.ctx.font = plFont.string;
+	scale._pointLabelSizes = [];
+
+	var valueCount = getValueCount(scale);
+	for (i = 0; i < valueCount; i++) {
+		pointPosition = scale.getPointPosition(i, scale.drawingArea + 5);
+		textSize = measureLabelSize(scale.ctx, plFont.lineHeight, scale.pointLabels[i] || '''');
+		scale._pointLabelSizes[i] = textSize;
+
+		// Add quarter circle to make degree 0 mean top of circle
+		var angleRadians = scale.getIndexAngle(i);
+		var angle = helpers$1.toDegrees(angleRadians) % 360;
+		var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
+		var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);
+
+		if (hLimits.start < furthestLimits.l) {
+			furthestLimits.l = hLimits.start;
+			furthestAngles.l = angleRadians;
+		}
 
-			for (var i=0; i<=this.steps; i++){
-				this.yLabels.push(template(this.templateString,{value:(this.min + (i * this.stepValue)).toFixed(stepDecimalPlaces)}));
-			}
-		},
-		getCircumference : function(){
-			return ((Math.PI*2) / this.valuesCount);
-		},
-		setScaleSize: function(){
-			/*
-			 * Right, this is really confusing and there is a lot of maths going on here
-			 * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
-			 *
-			 * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
-			 *
-			 * Solution:
-			 *
-			 * We assume the radius of the polygon is half the size of the canvas at first
-			 * at each index we check if the text overlaps.
-			 *
-			 * Where it does, we store that angle and that index.
-			 *
-			 * After finding the largest index and angle we calculate how much we need to remove
-			 * from the shape radius to move the point inwards by that x.
-			 *
-			 * We average the left and right distances to get the maximum shape radius that can fit in the box
-			 * along with labels.
-			 *
-			 * Once we have that, we can find the centre point for the chart, by taking the x text protrusion
-			 * on each side, removing that from the size, halving it and adding the left x protrusion width.
-			 *
-			 * This will mean we have a shape fitted to the canvas, as large as it can be with the labels
-			 * and position it in the most space efficient manner
-			 *
-			 * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
-			 */
-
-
-			// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
-			// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
-			var largestPossibleRadius = min([(this.height/2 - this.pointLabelFontSize - 5), this.width/2]),
-				pointPosition,
-				i,
-				textWidth,
-				halfTextWidth,
-				furthestRight = this.width,
-				furthestRightIndex,
-				furthestRightAngle,
-				furthestLeft = 0,
-				furthestLeftIndex,
-				furthestLeftAngle,
-				xProtrusionLeft,
-				xProtrusionRight,
-				radiusReductionRight,
-				radiusReductionLeft,
-				maxWidthRadius;
-			this.ctx.font = fontString(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily);
-			for (i=0;i<this.valuesCount;i++){
-				// 5px to space the text slightly out - similar to what we do in the draw function.
-				pointPosition = this.getPointPosition(i, largestPossibleRadius);
-				textWidth = this.ctx.measureText(template(this.templateString, { value: this.labels[i] })).width + 5;
-				if (i === 0 || i === this.valuesCount/2){
-					// If we''re at index zero, or exactly the middle, we''re at exactly the top/bottom
-					// of the radar chart, so text will be aligned centrally, so we''ll half it and compare
-					// w/left and right text sizes
-					halfTextWidth = textWidth/2;
-					if (pointPosition.x + halfTextWidth > furthestRight) {
-						furthestRight = pointPosition.x + halfTextWidth;
-						furthestRightIndex = i;
-					}
-					if (pointPosition.x - halfTextWidth < furthestLeft) {
-						furthestLeft = pointPosition.x - halfTextWidth;
-						furthestLeftIndex = i;
-					}
-				}
-				else if (i < this.valuesCount/2) {
-					// Less than half the values means we''ll left align the text
-					if (pointPosition.x + textWidth > furthestRight) {
-						furthestRight = pointPosition.x + textWidth;
-						furthestRightIndex = i;
-					}
-				}
-				else if (i > this.valuesCount/2){
-					// More than half the values means we''ll right align the text
-					if (pointPosition.x - textWidth < furthestLeft) {
-						furthestLeft = pointPosition.x - textWidth;
-						furthestLeftIndex = i;
-					}
-				}
-			}
+		if (hLimits.end > furthestLimits.r) {
+			furthestLimits.r = hLimits.end;
+			furthestAngles.r = angleRadians;
+		}
 
-			xProtrusionLeft = furthestLeft;
+		if (vLimits.start < furthestLimits.t) {
+			furthestLimits.t = vLimits.start;
+			furthestAngles.t = angleRadians;
+		}
 
-			xProtrusionRight = Math.ceil(furthestRight - this.width);
+		if (vLimits.end > furthestLimits.b) {
+			furthestLimits.b = vLimits.end;
+			furthestAngles.b = angleRadians;
+		}
+	}
 
-			furthestRightAngle = this.getIndexAngle(furthestRightIndex);
+	scale.setReductions(scale.drawingArea, furthestLimits, furthestAngles);
+}
 
-			furthestLeftAngle = this.getIndexAngle(furthestLeftIndex);
+function getTextAlignForAngle(angle) {
+	if (angle === 0 || angle === 180) {
+		return ''center'';
+	} else if (angle < 180) {
+		return ''left'';
+	}
 
-			radiusReductionRight = xProtrusionRight / Math.sin(furthestRightAngle + Math.PI/2);
+	return ''right'';
+}
 
-			radiusReductionLeft = xProtrusionLeft / Math.sin(furthestLeftAngle + Math.PI/2);
+function fillText(ctx, text, position, lineHeight) {
+	var y = position.y + lineHeight / 2;
+	var i, ilen;
 
-			// Ensure we actually need to reduce the size of the chart
-			radiusReductionRight = (isNumber(radiusReductionRight)) ? radiusReductionRight : 0;
-			radiusReductionLeft = (isNumber(radiusReductionLeft)) ? radiusReductionLeft : 0;
+	if (helpers$1.isArray(text)) {
+		for (i = 0, ilen = text.length; i < ilen; ++i) {
+			ctx.fillText(text[i], position.x, y);
+			y += lineHeight;
+		}
+	} else {
+		ctx.fillText(text, position.x, y);
+	}
+}
 
-			this.drawingArea = largestPossibleRadius - (radiusReductionLeft + radiusReductionRight)/2;
+function adjustPointPositionForLabelHeight(angle, textSize, position) {
+	if (angle === 90 || angle === 270) {
+		position.y -= (textSize.h / 2);
+	} else if (angle > 270 || angle < 90) {
+		position.y -= textSize.h;
+	}
+}
 
-			//this.drawingArea = min([maxWidthRadius, (this.height - (2 * (this.pointLabelFontSize + 5)))/2])
-			this.setCenterPoint(radiusReductionLeft, radiusReductionRight);
+function drawPointLabels(scale) {
+	var ctx = scale.ctx;
+	var opts = scale.options;
+	var angleLineOpts = opts.angleLines;
+	var gridLineOpts = opts.gridLines;
+	var pointLabelOpts = opts.pointLabels;
+	var lineWidth = valueOrDefault$b(angleLineOpts.lineWidth, gridLineOpts.lineWidth);
+	var lineColor = valueOrDefault$b(angleLineOpts.color, gridLineOpts.color);
+	var tickBackdropHeight = getTickBackdropHeight(opts);
+
+	ctx.save();
+	ctx.lineWidth = lineWidth;
+	ctx.strokeStyle = lineColor;
+	if (ctx.setLineDash) {
+		ctx.setLineDash(resolve$7([angleLineOpts.borderDash, gridLineOpts.borderDash, []]));
+		ctx.lineDashOffset = resolve$7([angleLineOpts.borderDashOffset, gridLineOpts.borderDashOffset, 0.0]);
+	}
 
-		},
-		setCenterPoint: function(leftMovement, rightMovement){
+	var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);
 
-			var maxRight = this.width - rightMovement - this.drawingArea,
-				maxLeft = leftMovement + this.drawingArea;
+	// Point Label Font
+	var plFont = helpers$1.options._parseFont(pointLabelOpts);
 
-			this.xCenter = (maxLeft + maxRight)/2;
-			// Always vertically in the centre as the text height doesn''t change
-			this.yCenter = (this.height/2);
-		},
+	ctx.font = plFont.string;
+	ctx.textBaseline = ''middle'';
 
-		getIndexAngle : function(index){
-			var angleMultiplier = (Math.PI * 2) / this.valuesCount;
-			// Start from the top instead of right, so remove a quarter of the circle
+	for (var i = getValueCount(scale) - 1; i >= 0; i--) {
+		if (angleLineOpts.display && lineWidth && lineColor) {
+			var outerPosition = scale.getPointPosition(i, outerDistance);
+			ctx.beginPath();
+			ctx.moveTo(scale.xCenter, scale.yCenter);
+			ctx.lineTo(outerPosition.x, outerPosition.y);
+			ctx.stroke();
+		}
 
-			return index * angleMultiplier - (Math.PI/2);
-		},
-		getPointPosition : function(index, distanceFromCenter){
-			var thisAngle = this.getIndexAngle(index);
-			return {
-				x : (Math.cos(thisAngle) * distanceFromCenter) + this.xCenter,
-				y : (Math.sin(thisAngle) * distanceFromCenter) + this.yCenter
-			};
-		},
-		draw: function(){
-			if (this.display){
-				var ctx = this.ctx;
-				each(this.yLabels, function(label, index){
-					// Don''t draw a centre value
-					if (index > 0){
-						var yCenterOffset = index * (this.drawingArea/this.steps),
-							yHeight = this.yCenter - yCenterOffset,
-							pointPosition;
-
-						// Draw circular lines around the scale
-						if (this.lineWidth > 0){
-							ctx.strokeStyle = this.lineColor;
-							ctx.lineWidth = this.lineWidth;
-
-							if(this.lineArc){
-								ctx.beginPath();
-								ctx.arc(this.xCenter, this.yCenter, yCenterOffset, 0, Math.PI*2);
-								ctx.closePath();
-								ctx.stroke();
-							} else{
-								ctx.beginPath();
-								for (var i=0;i<this.valuesCount;i++)
-								{
-									pointPosition = this.getPointPosition(i, this.calculateCenterOffset(this.min + (index * this.stepValue)));
-									if (i === 0){
-										ctx.moveTo(pointPosition.x, pointPosition.y);
-									} else {
-										ctx.lineTo(pointPosition.x, pointPosition.y);
-									}
-								}
-								ctx.closePath();
-								ctx.stroke();
-							}
-						}
-						if(this.showLabels){
-							ctx.font = fontString(this.fontSize,this.fontStyle,this.fontFamily);
-							if (this.showLabelBackdrop){
-								var labelWidth = ctx.measureText(label).width;
-								ctx.fillStyle = this.backdropColor;
-								ctx.fillRect(
-									this.xCenter - labelWidth/2 - this.backdropPaddingX,
-									yHeight - this.fontSize/2 - this.backdropPaddingY,
-									labelWidth + this.backdropPaddingX*2,
-									this.fontSize + this.backdropPaddingY*2
-								);
-							}
-							ctx.textAlign = ''center'';
-							ctx.textBaseline = "middle";
-							ctx.fillStyle = this.fontColor;
-							ctx.fillText(label, this.xCenter, yHeight);
-						}
-					}
-				}, this);
-
-				if (!this.lineArc){
-					ctx.lineWidth = this.angleLineWidth;
-					ctx.strokeStyle = this.angleLineColor;
-					for (var i = this.valuesCount - 1; i >= 0; i--) {
-						if (this.angleLineWidth > 0){
-							var outerPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max));
-							ctx.beginPath();
-							ctx.moveTo(this.xCenter, this.yCenter);
-							ctx.lineTo(outerPosition.x, outerPosition.y);
-							ctx.stroke();
-							ctx.closePath();
-						}
-						// Extra 3px out for some label spacing
-						var pointLabelPosition = this.getPointPosition(i, this.calculateCenterOffset(this.max) + 5);
-						ctx.font = fontString(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily);
-						ctx.fillStyle = this.pointLabelFontColor;
-
-						var labelsCount = this.labels.length,
-							halfLabelsCount = this.labels.length/2,
-							quarterLabelsCount = halfLabelsCount/2,
-							upperHalf = (i < quarterLabelsCount || i > labelsCount - quarterLabelsCount),
-							exactQuarter = (i === quarterLabelsCount || i === labelsCount - quarterLabelsCount);
-						if (i === 0){
-							ctx.textAlign = ''center'';
-						} else if(i === halfLabelsCount){
-							ctx.textAlign = ''center'';
-						} else if (i < halfLabelsCount){
-							ctx.textAlign = ''left'';
-						} else {
-							ctx.textAlign = ''right'';
-						}
+		if (pointLabelOpts.display) {
+			// Extra pixels out for some label spacing
+			var extra = (i === 0 ? tickBackdropHeight / 2 : 0);
+			var pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + 5);
 
-						// Set the correct text baseline based on outer positioning
-						if (exactQuarter){
-							ctx.textBaseline = ''middle'';
-						} else if (upperHalf){
-							ctx.textBaseline = ''bottom'';
-						} else {
-							ctx.textBaseline = ''top'';
-						}
+			// Keep this in loop since we may support array properties here
+			var pointLabelFontColor = valueAtIndexOrDefault$1(pointLabelOpts.fontColor, i, core_defaults.global.defaultFontColor);
+			ctx.fillStyle = pointLabelFontColor;
 
-						ctx.fillText(this.labels[i], pointLabelPosition.x, pointLabelPosition.y);
-					}
-				}
-			}
+			var angleRadians = scale.getIndexAngle(i);
+			var angle = helpers$1.toDegrees(angleRadians);
+			ctx.textAlign = getTextAlignForAngle(angle);
+			adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
+			fillText(ctx, scale.pointLabels[i] || '''', pointLabelPosition, plFont.lineHeight);
 		}
-	});
+	}
+	ctx.restore();
+}
+
+function drawRadiusLine(scale, gridLineOpts, radius, index) {
+	var ctx = scale.ctx;
+	var circular = gridLineOpts.circular;
+	var valueCount = getValueCount(scale);
+	var lineColor = valueAtIndexOrDefault$1(gridLineOpts.color, index - 1);
+	var lineWidth = valueAtIndexOrDefault$1(gridLineOpts.lineWidth, index - 1);
+	var pointPosition;
+
+	if ((!circular && !valueCount) || !lineColor || !lineWidth) {
+		return;
+	}
+
+	ctx.save();
+	ctx.strokeStyle = lineColor;
+	ctx.lineWidth = lineWidth;
+	if (ctx.setLineDash) {
+		ctx.setLineDash(gridLineOpts.borderDash || []);
+		ctx.lineDashOffset = gridLineOpts.borderDashOffset || 0.0;
+	}
 
-	// Attach global event to resize each chart instance when the browser resizes
-	helpers.addEvent(window, "resize", (function(){
-		// Basic debounce of resize function so it doesn''t hurt performance when resizing browser.
-		var timeout;
-		return function(){
-			clearTimeout(timeout);
-			timeout = setTimeout(function(){
-				each(Chart.instances,function(instance){
-					// If the responsive flag is set in the chart instance config
-					// Cascade the resize event down to the chart.
-					if (instance.options.responsive){
-						instance.resize(instance.render, true);
+	ctx.beginPath();
+	if (circular) {
+		// Draw circular arcs between the points
+		ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
+	} else {
+		// Draw straight lines connecting each index
+		pointPosition = scale.getPointPosition(0, radius);
+		ctx.moveTo(pointPosition.x, pointPosition.y);
+
+		for (var i = 1; i < valueCount; i++) {
+			pointPosition = scale.getPointPosition(i, radius);
+			ctx.lineTo(pointPosition.x, pointPosition.y);
+		}
+	}
+	ctx.closePath();
+	ctx.stroke();
+	ctx.restore();
+}
+
+function numberOrZero(param) {
+	return helpers$1.isNumber(param) ? param : 0;
+}
+
+var scale_radialLinear = scale_linearbase.extend({
+	setDimensions: function() {
+		var me = this;
+
+		// Set the unconstrained dimension before label rotation
+		me.width = me.maxWidth;
+		me.height = me.maxHeight;
+		me.paddingTop = getTickBackdropHeight(me.options) / 2;
+		me.xCenter = Math.floor(me.width / 2);
+		me.yCenter = Math.floor((me.height - me.paddingTop) / 2);
+		me.drawingArea = Math.min(me.height - me.paddingTop, me.width) / 2;
+	},
+
+	determineDataLimits: function() {
+		var me = this;
+		var chart = me.chart;
+		var min = Number.POSITIVE_INFINITY;
+		var max = Number.NEGATIVE_INFINITY;
+
+		helpers$1.each(chart.data.datasets, function(dataset, datasetIndex) {
+			if (chart.isDatasetVisible(datasetIndex)) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+
+				helpers$1.each(dataset.data, function(rawValue, index) {
+					var value = +me.getRightValue(rawValue);
+					if (isNaN(value) || meta.data[index].hidden) {
+						return;
 					}
+
+					min = Math.min(value, min);
+					max = Math.max(value, max);
 				});
-			}, 50);
-		};
-	})());
+			}
+		});
 
+		me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
+		me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);
 
-	if (amd) {
-		define(function(){
-			return Chart;
-		});
-	} else if (typeof module === ''object'' && module.exports) {
-		module.exports = Chart;
-	}
+		// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
+		me.handleTickRangeOptions();
+	},
 
-	root.Chart = Chart;
+	// Returns the maximum number of ticks based on the scale dimension
+	_computeTickLimit: function() {
+		return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));
+	},
 
-	Chart.noConflict = function(){
-		root.Chart = previous;
-		return Chart;
-	};
+	convertTicksToLabels: function() {
+		var me = this;
 
-}).call(this);
+		scale_linearbase.prototype.convertTicksToLabels.call(me);
 
-(function(){
-	"use strict";
+		// Point labels
+		me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
+	},
 
-	var root = this,
-		Chart = root.Chart,
-		helpers = Chart.helpers;
+	getLabelForIndex: function(index, datasetIndex) {
+		return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
+	},
 
+	fit: function() {
+		var me = this;
+		var opts = me.options;
 
-	var defaultConfig = {
-		//Boolean - Whether the scale should start at zero, or an order of magnitude down from the lowest value
-		scaleBeginAtZero : true,
+		if (opts.display && opts.pointLabels.display) {
+			fitWithPointLabels(me);
+		} else {
+			me.setCenterPoint(0, 0, 0, 0);
+		}
+	},
+
+	/**
+	 * Set radius reductions and determine new radius and center point
+	 * @private
+	 */
+	setReductions: function(largestPossibleRadius, furthestLimits, furthestAngles) {
+		var me = this;
+		var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
+		var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
+		var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
+		var radiusReductionBottom = -Math.max(furthestLimits.b - (me.height - me.paddingTop), 0) / Math.cos(furthestAngles.b);
+
+		radiusReductionLeft = numberOrZero(radiusReductionLeft);
+		radiusReductionRight = numberOrZero(radiusReductionRight);
+		radiusReductionTop = numberOrZero(radiusReductionTop);
+		radiusReductionBottom = numberOrZero(radiusReductionBottom);
+
+		me.drawingArea = Math.min(
+			Math.floor(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
+			Math.floor(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
+		me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
+	},
+
+	setCenterPoint: function(leftMovement, rightMovement, topMovement, bottomMovement) {
+		var me = this;
+		var maxRight = me.width - rightMovement - me.drawingArea;
+		var maxLeft = leftMovement + me.drawingArea;
+		var maxTop = topMovement + me.drawingArea;
+		var maxBottom = (me.height - me.paddingTop) - bottomMovement - me.drawingArea;
+
+		me.xCenter = Math.floor(((maxLeft + maxRight) / 2) + me.left);
+		me.yCenter = Math.floor(((maxTop + maxBottom) / 2) + me.top + me.paddingTop);
+	},
+
+	getIndexAngle: function(index) {
+		var angleMultiplier = (Math.PI * 2) / getValueCount(this);
+		var startAngle = this.chart.options && this.chart.options.startAngle ?
+			this.chart.options.startAngle :
+			0;
+
+		var startAngleRadians = startAngle * Math.PI * 2 / 360;
+
+		// Start from the top instead of right, so remove a quarter of the circle
+		return index * angleMultiplier + startAngleRadians;
+	},
+
+	getDistanceFromCenterForValue: function(value) {
+		var me = this;
+
+		if (value === null) {
+			return 0; // null always in center
+		}
 
-		//Boolean - Whether grid lines are shown across the chart
-		scaleShowGridLines : true,
+		// Take into account half font size + the yPadding of the top value
+		var scalingFactor = me.drawingArea / (me.max - me.min);
+		if (me.options.ticks.reverse) {
+			return (me.max - value) * scalingFactor;
+		}
+		return (value - me.min) * scalingFactor;
+	},
+
+	getPointPosition: function(index, distanceFromCenter) {
+		var me = this;
+		var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
+		return {
+			x: Math.cos(thisAngle) * distanceFromCenter + me.xCenter,
+			y: Math.sin(thisAngle) * distanceFromCenter + me.yCenter
+		};
+	},
+
+	getPointPositionForValue: function(index, value) {
+		return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
+	},
+
+	getBasePosition: function() {
+		var me = this;
+		var min = me.min;
+		var max = me.max;
+
+		return me.getPointPositionForValue(0,
+			me.beginAtZero ? 0 :
+			min < 0 && max < 0 ? max :
+			min > 0 && max > 0 ? min :
+			0);
+	},
+
+	draw: function() {
+		var me = this;
+		var opts = me.options;
+		var gridLineOpts = opts.gridLines;
+		var tickOpts = opts.ticks;
+
+		if (opts.display) {
+			var ctx = me.ctx;
+			var startAngle = this.getIndexAngle(0);
+			var tickFont = helpers$1.options._parseFont(tickOpts);
+
+			if (opts.angleLines.display || opts.pointLabels.display) {
+				drawPointLabels(me);
+			}
 
-		//String - Colour of the grid lines
-		scaleGridLineColor : "rgba(0,0,0,.05)",
+			helpers$1.each(me.ticks, function(label, index) {
+				// Don''t draw a centre value (if it is minimum)
+				if (index > 0 || tickOpts.reverse) {
+					var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);
 
-		//Number - Width of the grid lines
-		scaleGridLineWidth : 1,
+					// Draw circular lines around the scale
+					if (gridLineOpts.display && index !== 0) {
+						drawRadiusLine(me, gridLineOpts, yCenterOffset, index);
+					}
 
-		//Boolean - Whether to show horizontal lines (except X axis)
-		scaleShowHorizontalLines: true,
+					if (tickOpts.display) {
+						var tickFontColor = valueOrDefault$b(tickOpts.fontColor, core_defaults.global.defaultFontColor);
+						ctx.font = tickFont.string;
+
+						ctx.save();
+						ctx.translate(me.xCenter, me.yCenter);
+						ctx.rotate(startAngle);
+
+						if (tickOpts.showLabelBackdrop) {
+							var labelWidth = ctx.measureText(label).width;
+							ctx.fillStyle = tickOpts.backdropColor;
+							ctx.fillRect(
+								-labelWidth / 2 - tickOpts.backdropPaddingX,
+								-yCenterOffset - tickFont.size / 2 - tickOpts.backdropPaddingY,
+								labelWidth + tickOpts.backdropPaddingX * 2,
+								tickFont.size + tickOpts.backdropPaddingY * 2
+							);
+						}
 
-		//Boolean - Whether to show vertical lines (except Y axis)
-		scaleShowVerticalLines: true,
+						ctx.textAlign = ''center'';
+						ctx.textBaseline = ''middle'';
+						ctx.fillStyle = tickFontColor;
+						ctx.fillText(label, 0, -yCenterOffset);
+						ctx.restore();
+					}
+				}
+			});
+		}
+	}
+});
+
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$3 = defaultConfig$3;
+scale_radialLinear._defaults = _defaults$3;
+
+var valueOrDefault$c = helpers$1.valueOrDefault;
+
+// Integer constants are from the ES6 spec.
+var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
+var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
+
+var INTERVALS = {
+	millisecond: {
+		common: true,
+		size: 1,
+		steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
+	},
+	second: {
+		common: true,
+		size: 1000,
+		steps: [1, 2, 5, 10, 15, 30]
+	},
+	minute: {
+		common: true,
+		size: 60000,
+		steps: [1, 2, 5, 10, 15, 30]
+	},
+	hour: {
+		common: true,
+		size: 3600000,
+		steps: [1, 2, 3, 6, 12]
+	},
+	day: {
+		common: true,
+		size: 86400000,
+		steps: [1, 2, 5]
+	},
+	week: {
+		common: false,
+		size: 604800000,
+		steps: [1, 2, 3, 4]
+	},
+	month: {
+		common: true,
+		size: 2.628e9,
+		steps: [1, 2, 3]
+	},
+	quarter: {
+		common: false,
+		size: 7.884e9,
+		steps: [1, 2, 3, 4]
+	},
+	year: {
+		common: true,
+		size: 3.154e10
+	}
+};
 
-		//Boolean - If there is a stroke on each bar
-		barShowStroke : true,
+var UNITS = Object.keys(INTERVALS);
 
-		//Number - Pixel width of the bar stroke
-		barStrokeWidth : 2,
+function sorter(a, b) {
+	return a - b;
+}
 
-		//Number - Spacing between each of the X value sets
-		barValueSpacing : 5,
+function arrayUnique(items) {
+	var hash = {};
+	var out = [];
+	var i, ilen, item;
 
-		//Number - Spacing between data sets within X values
-		barDatasetSpacing : 1,
+	for (i = 0, ilen = items.length; i < ilen; ++i) {
+		item = items[i];
+		if (!hash[item]) {
+			hash[item] = true;
+			out.push(item);
+		}
+	}
 
-		//String - A legend template
-		legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].fillColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>"
+	return out;
+}
 
-	};
+/**
+ * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
+ * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
+ * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
+ * extremity (left + width or top + height). Note that it would be more optimized to directly
+ * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
+ * to create the lookup table. The table ALWAYS contains at least two items: min and max.
+ *
+ * @param {number[]} timestamps - timestamps sorted from lowest to highest.
+ * @param {string} distribution - If ''linear'', timestamps will be spread linearly along the min
+ * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
+ * If ''series'', timestamps will be positioned at the same distance from each other. In this
+ * case, only timestamps that break the time linearity are registered, meaning that in the
+ * best case, all timestamps are linear, the table contains only min and max.
+ */
+function buildLookupTable(timestamps, min, max, distribution) {
+	if (distribution === ''linear'' || !timestamps.length) {
+		return [
+			{time: min, pos: 0},
+			{time: max, pos: 1}
+		];
+	}
 
+	var table = [];
+	var items = [min];
+	var i, ilen, prev, curr, next;
 
-	Chart.Type.extend({
-		name: "Bar",
-		defaults : defaultConfig,
-		initialize:  function(data){
+	for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
+		curr = timestamps[i];
+		if (curr > min && curr < max) {
+			items.push(curr);
+		}
+	}
 
-			//Expose options as a scope variable here so we can access it in the ScaleClass
-			var options = this.options;
+	items.push(max);
 
-			this.ScaleClass = Chart.Scale.extend({
-				offsetGridLines : true,
-				calculateBarX : function(datasetCount, datasetIndex, barIndex){
-					//Reusable method for calculating the xPosition of a given bar based on datasetIndex & width of the bar
-					var xWidth = this.calculateBaseWidth(),
-						xAbsolute = this.calculateX(barIndex) - (xWidth/2),
-						barWidth = this.calculateBarWidth(datasetCount);
+	for (i = 0, ilen = items.length; i < ilen; ++i) {
+		next = items[i + 1];
+		prev = items[i - 1];
+		curr = items[i];
 
-					return xAbsolute + (barWidth * datasetIndex) + (datasetIndex * options.barDatasetSpacing) + barWidth/2;
-				},
-				calculateBaseWidth : function(){
-					return (this.calculateX(1) - this.calculateX(0)) - (2*options.barValueSpacing);
-				},
-				calculateBarWidth : function(datasetCount){
-					//The padding between datasets is to the right of each bar, providing that there are more than 1 dataset
-					var baseWidth = this.calculateBaseWidth() - ((datasetCount - 1) * options.barDatasetSpacing);
+		// only add points that breaks the scale linearity
+		if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
+			table.push({time: curr, pos: i / (ilen - 1)});
+		}
+	}
 
-					return (baseWidth / datasetCount);
-				}
-			});
+	return table;
+}
 
-			this.datasets = [];
+// @see adapted from https://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
+function lookup(table, key, value) {
+	var lo = 0;
+	var hi = table.length - 1;
+	var mid, i0, i1;
+
+	while (lo >= 0 && lo <= hi) {
+		mid = (lo + hi) >> 1;
+		i0 = table[mid - 1] || null;
+		i1 = table[mid];
+
+		if (!i0) {
+			// given value is outside table (before first item)
+			return {lo: null, hi: i1};
+		} else if (i1[key] < value) {
+			lo = mid + 1;
+		} else if (i0[key] > value) {
+			hi = mid - 1;
+		} else {
+			return {lo: i0, hi: i1};
+		}
+	}
 
-			//Set up tooltip events on the chart
-			if (this.options.showTooltips){
-				helpers.bindEvents(this, this.options.tooltipEvents, function(evt){
-					var activeBars = (evt.type !== ''mouseout'') ? this.getBarsAtEvent(evt) : [];
+	// given value is outside table (after last item)
+	return {lo: i1, hi: null};
+}
 
-					this.eachBars(function(bar){
-						bar.restore([''fillColor'', ''strokeColor'']);
-					});
-					helpers.each(activeBars, function(activeBar){
-						activeBar.fillColor = activeBar.highlightFill;
-						activeBar.strokeColor = activeBar.highlightStroke;
-					});
-					this.showTooltip(activeBars);
-				});
-			}
+/**
+ * Linearly interpolates the given source `value` using the table items `skey` values and
+ * returns the associated `tkey` value. For example, interpolate(table, ''time'', 42, ''pos'')
+ * returns the position for a timestamp equal to 42. If value is out of bounds, values at
+ * index [0, 1] or [n - 1, n] are used for the interpolation.
+ */
+function interpolate$1(table, skey, sval, tkey) {
+	var range = lookup(table, skey, sval);
 
-			//Declare the extension of the default point, to cater for the options passed in to the constructor
-			this.BarClass = Chart.Rectangle.extend({
-				strokeWidth : this.options.barStrokeWidth,
-				showStroke : this.options.barShowStroke,
-				ctx : this.chart.ctx
-			});
+	// Note: the lookup table ALWAYS contains at least 2 items (min and max)
+	var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
+	var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;
 
-			//Iterate through each of the datasets, and build this into a property of the chart
-			helpers.each(data.datasets,function(dataset,datasetIndex){
+	var span = next[skey] - prev[skey];
+	var ratio = span ? (sval - prev[skey]) / span : 0;
+	var offset = (next[tkey] - prev[tkey]) * ratio;
 
-				var datasetObject = {
-					label : dataset.label || null,
-					fillColor : dataset.fillColor,
-					strokeColor : dataset.strokeColor,
-					bars : []
-				};
+	return prev[tkey] + offset;
+}
 
-				this.datasets.push(datasetObject);
-
-				helpers.each(dataset.data,function(dataPoint,index){
-					//Add a new point for each piece of data, passing any required data to draw.
-					datasetObject.bars.push(new this.BarClass({
-						value : dataPoint,
-						label : data.labels[index],
-						datasetLabel: dataset.label,
-						strokeColor : dataset.strokeColor,
-						fillColor : dataset.fillColor,
-						highlightFill : dataset.highlightFill || dataset.fillColor,
-						highlightStroke : dataset.highlightStroke || dataset.strokeColor
-					}));
-				},this);
+function toTimestamp(scale, input) {
+	var adapter = scale._adapter;
+	var options = scale.options.time;
+	var parser = options.parser;
+	var format = parser || options.format;
+	var value = input;
 
-			},this);
+	if (typeof parser === ''function'') {
+		value = parser(value);
+	}
 
-			this.buildScale(data.labels);
+	// Only parse if its not a timestamp already
+	if (!helpers$1.isFinite(value)) {
+		value = typeof format === ''string''
+			? adapter.parse(value, format)
+			: adapter.parse(value);
+	}
 
-			this.BarClass.prototype.base = this.scale.endPoint;
+	if (value !== null) {
+		return +value;
+	}
 
-			this.eachBars(function(bar, index, datasetIndex){
-				helpers.extend(bar, {
-					width : this.scale.calculateBarWidth(this.datasets.length),
-					x: this.scale.calculateBarX(this.datasets.length, datasetIndex, index),
-					y: this.scale.endPoint
-				});
-				bar.save();
-			}, this);
+	// Labels are in an incompatible format and no `parser` has been provided.
+	// The user might still use the deprecated `format` option for parsing.
+	if (!parser && typeof format === ''function'') {
+		value = format(input);
 
-			this.render();
-		},
-		update : function(){
-			this.scale.update();
-			// Reset any highlight colours before updating.
-			helpers.each(this.activeElements, function(activeElement){
-				activeElement.restore([''fillColor'', ''strokeColor'']);
-			});
+		// `format` could return something else than a timestamp, if so, parse it
+		if (!helpers$1.isFinite(value)) {
+			value = adapter.parse(value);
+		}
+	}
 
-			this.eachBars(function(bar){
-				bar.save();
-			});
-			this.render();
-		},
-		eachBars : function(callback){
-			helpers.each(this.datasets,function(dataset, datasetIndex){
-				helpers.each(dataset.bars, callback, this, datasetIndex);
-			},this);
-		},
-		getBarsAtEvent : function(e){
-			var barsArray = [],
-				eventPosition = helpers.getRelativePosition(e),
-				datasetIterator = function(dataset){
-					barsArray.push(dataset.bars[barIndex]);
-				},
-				barIndex;
+	return value;
+}
 
-			for (var datasetIndex = 0; datasetIndex < this.datasets.length; datasetIndex++) {
-				for (barIndex = 0; barIndex < this.datasets[datasetIndex].bars.length; barIndex++) {
-					if (this.datasets[datasetIndex].bars[barIndex].inRange(eventPosition.x,eventPosition.y)){
-						helpers.each(this.datasets, datasetIterator);
-						return barsArray;
-					}
-				}
-			}
+function parse(scale, input) {
+	if (helpers$1.isNullOrUndef(input)) {
+		return null;
+	}
 
-			return barsArray;
-		},
-		buildScale : function(labels){
-			var self = this;
+	var options = scale.options.time;
+	var value = toTimestamp(scale, scale.getRightValue(input));
+	if (value === null) {
+		return value;
+	}
 
-			var dataTotal = function(){
-				var values = [];
-				self.eachBars(function(bar){
-					values.push(bar.value);
-				});
-				return values;
-			};
+	if (options.round) {
+		value = +scale._adapter.startOf(value, options.round);
+	}
 
-			if(Chart.defaults.global.omitXLabels){
-			    var newLabels=[];
-			    for(var i=0;i<labels.length;i++){
-			        newLabels.push('''');
-			    }
-			    labels=newLabels;
-			}
-
-			var scaleOptions = {
-				templateString : this.options.scaleLabel,
-				height : this.chart.height,
-				width : this.chart.width,
-				ctx : this.chart.ctx,
-				textColor : this.options.scaleFontColor,
-				fontSize : this.options.scaleFontSize,
-				fontStyle : this.options.scaleFontStyle,
-				fontFamily : this.options.scaleFontFamily,
-				valuesCount : labels.length,
-				beginAtZero : this.options.scaleBeginAtZero,
-				integersOnly : this.options.scaleIntegersOnly,
-				calculateYRange: function(currentHeight){
-					var updatedRanges = helpers.calculateScaleRange(
-						dataTotal(),
-						currentHeight,
-						this.fontSize,
-						this.beginAtZero,
-						this.integersOnly
-					);
-					helpers.extend(this, updatedRanges);
-				},
-				xLabels : labels,
-				font : helpers.fontString(this.options.scaleFontSize, this.options.scaleFontStyle, this.options.scaleFontFamily),
-				lineWidth : this.options.scaleLineWidth,
-				lineColor : this.options.scaleLineColor,
-				showHorizontalLines : this.options.scaleShowHorizontalLines,
-				showVerticalLines : this.options.scaleShowVerticalLines,
-				gridLineWidth : (this.options.scaleShowGridLines) ? this.options.scaleGridLineWidth : 0,
-				gridLineColor : (this.options.scaleShowGridLines) ? this.options.scaleGridLineColor : "rgba(0,0,0,0)",
-				padding : (this.options.showScale) ? 0 : (this.options.barShowStroke) ? this.options.barStrokeWidth : 0,
-				showLabels : this.options.scaleShowLabels,
-				display : this.options.showScale
-			};
+	return value;
+}
 
-			if (this.options.scaleOverride){
-				helpers.extend(scaleOptions, {
-					calculateYRange: helpers.noop,
-					steps: this.options.scaleSteps,
-					stepValue: this.options.scaleStepWidth,
-					min: this.options.scaleStartValue,
-					max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth)
-				});
-			}
+/**
+ * Returns the number of unit to skip to be able to display up to `capacity` number of ticks
+ * in `unit` for the given `min` / `max` range and respecting the interval steps constraints.
+ */
+function determineStepSize(min, max, unit, capacity) {
+	var range = max - min;
+	var interval = INTERVALS[unit];
+	var milliseconds = interval.size;
+	var steps = interval.steps;
+	var i, ilen, factor;
+
+	if (!steps) {
+		return Math.ceil(range / (capacity * milliseconds));
+	}
 
-			this.scale = new this.ScaleClass(scaleOptions);
-		},
-		addData : function(valuesArray,label){
-			//Map the values array for each of the datasets
-			helpers.each(valuesArray,function(value,datasetIndex){
-				//Add a new point for each piece of data, passing any required data to draw.
-				this.datasets[datasetIndex].bars.push(new this.BarClass({
-					value : value,
-					label : label,
-					x: this.scale.calculateBarX(this.datasets.length, datasetIndex, this.scale.valuesCount+1),
-					y: this.scale.endPoint,
-					width : this.scale.calculateBarWidth(this.datasets.length),
-					base : this.scale.endPoint,
-					strokeColor : this.datasets[datasetIndex].strokeColor,
-					fillColor : this.datasets[datasetIndex].fillColor
-				}));
-			},this);
+	for (i = 0, ilen = steps.length; i < ilen; ++i) {
+		factor = steps[i];
+		if (Math.ceil(range / (milliseconds * factor)) <= capacity) {
+			break;
+		}
+	}
 
-			this.scale.addXLabel(label);
-			//Then re-render the chart.
-			this.update();
-		},
-		removeData : function(){
-			this.scale.removeXLabel();
-			//Then re-render the chart.
-			helpers.each(this.datasets,function(dataset){
-				dataset.bars.shift();
-			},this);
-			this.update();
-		},
-		reflow : function(){
-			helpers.extend(this.BarClass.prototype,{
-				y: this.scale.endPoint,
-				base : this.scale.endPoint
-			});
-			var newScaleProps = helpers.extend({
-				height : this.chart.height,
-				width : this.chart.width
-			});
-			this.scale.update(newScaleProps);
-		},
-		draw : function(ease){
-			var easingDecimal = ease || 1;
-			this.clear();
-
-			var ctx = this.chart.ctx;
-
-			this.scale.draw(easingDecimal);
-
-			//Draw all the bars for each dataset
-			helpers.each(this.datasets,function(dataset,datasetIndex){
-				helpers.each(dataset.bars,function(bar,index){
-					if (bar.hasValue()){
-						bar.base = this.scale.endPoint;
-						//Transition then draw
-						bar.transition({
-							x : this.scale.calculateBarX(this.datasets.length, datasetIndex, index),
-							y : this.scale.calculateY(bar.value),
-							width : this.scale.calculateBarWidth(this.datasets.length)
-						}, easingDecimal).draw();
-					}
-				},this);
+	return factor;
+}
 
-			},this);
+/**
+ * Figures out what unit results in an appropriate number of auto-generated ticks
+ */
+function determineUnitForAutoTicks(minUnit, min, max, capacity) {
+	var ilen = UNITS.length;
+	var i, interval, factor;
+
+	for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
+		interval = INTERVALS[UNITS[i]];
+		factor = interval.steps ? interval.steps[interval.steps.length - 1] : MAX_INTEGER;
+
+		if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
+			return UNITS[i];
 		}
-	});
+	}
 
+	return UNITS[ilen - 1];
+}
 
-}).call(this);
+/**
+ * Figures out what unit to format a set of ticks with
+ */
+function determineUnitForFormatting(scale, ticks, minUnit, min, max) {
+	var ilen = UNITS.length;
+	var i, unit;
+
+	for (i = ilen - 1; i >= UNITS.indexOf(minUnit); i--) {
+		unit = UNITS[i];
+		if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= ticks.length) {
+			return unit;
+		}
+	}
 
-(function(){
-	"use strict";
+	return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
+}
 
-	var root = this,
-		Chart = root.Chart,
-		//Cache a local reference to Chart.helpers
-		helpers = Chart.helpers;
+function determineMajorUnit(unit) {
+	for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
+		if (INTERVALS[UNITS[i]].common) {
+			return UNITS[i];
+		}
+	}
+}
 
-	var defaultConfig = {
-		//Boolean - Whether we should show a stroke on each segment
-		segmentShowStroke : true,
+/**
+ * Generates a maximum of `capacity` timestamps between min and max, rounded to the
+ * `minor` unit, aligned on the `major` unit and using the given scale time `options`.
+ * Important: this method can return ticks outside the min and max range, it''s the
+ * responsibility of the calling code to clamp values if needed.
+ */
+function generate(scale, min, max, capacity) {
+	var adapter = scale._adapter;
+	var options = scale.options;
+	var timeOpts = options.time;
+	var minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, capacity);
+	var major = determineMajorUnit(minor);
+	var stepSize = valueOrDefault$c(timeOpts.stepSize, timeOpts.unitStepSize);
+	var weekday = minor === ''week'' ? timeOpts.isoWeekday : false;
+	var majorTicksEnabled = options.ticks.major.enabled;
+	var interval = INTERVALS[minor];
+	var first = min;
+	var last = max;
+	var ticks = [];
+	var time;
+
+	if (!stepSize) {
+		stepSize = determineStepSize(min, max, minor, capacity);
+	}
 
-		//String - The colour of each segment stroke
-		segmentStrokeColor : "#fff",
+	// For ''week'' unit, handle the first day of week option
+	if (weekday) {
+		first = +adapter.startOf(first, ''isoWeek'', weekday);
+		last = +adapter.startOf(last, ''isoWeek'', weekday);
+	}
 
-		//Number - The width of each segment stroke
-		segmentStrokeWidth : 2,
+	// Align first/last ticks on unit
+	first = +adapter.startOf(first, weekday ? ''day'' : minor);
+	last = +adapter.startOf(last, weekday ? ''day'' : minor);
 
-		//The percentage of the chart that we cut out of the middle.
-		percentageInnerCutout : 50,
+	// Make sure that the last tick include max
+	if (last < max) {
+		last = +adapter.add(last, 1, minor);
+	}
 
-		//Number - Amount of animation steps
-		animationSteps : 100,
+	time = first;
 
-		//String - Animation easing effect
-		animationEasing : "easeOutBounce",
+	if (majorTicksEnabled && major && !weekday && !timeOpts.round) {
+		// Align the first tick on the previous `minor` unit aligned on the `major` unit:
+		// we first aligned time on the previous `major` unit then add the number of full
+		// stepSize there is between first and the previous major time.
+		time = +adapter.startOf(time, major);
+		time = +adapter.add(time, ~~((first - time) / (interval.size * stepSize)) * stepSize, minor);
+	}
 
-		//Boolean - Whether we animate the rotation of the Doughnut
-		animateRotate : true,
+	for (; time < last; time = +adapter.add(time, stepSize, minor)) {
+		ticks.push(+time);
+	}
 
-		//Boolean - Whether we animate scaling the Doughnut from the centre
-		animateScale : false,
+	ticks.push(+time);
 
-		//String - A legend template
-		legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<segments.length; i++){%><li><span style=\"background-color:<%=segments[i].fillColor%>\"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>"
+	return ticks;
+}
 
-	};
+/**
+ * Returns the start and end offsets from edges in the form of {start, end}
+ * where each value is a relative width to the scale and ranges between 0 and 1.
+ * They add extra margins on the both sides by scaling down the original scale.
+ * Offsets are added when the `offset` option is true.
+ */
+function computeOffsets(table, ticks, min, max, options) {
+	var start = 0;
+	var end = 0;
+	var first, last;
+
+	if (options.offset && ticks.length) {
+		if (!options.time.min) {
+			first = interpolate$1(table, ''time'', ticks[0], ''pos'');
+			if (ticks.length === 1) {
+				start = 1 - first;
+			} else {
+				start = (interpolate$1(table, ''time'', ticks[1], ''pos'') - first) / 2;
+			}
+		}
+		if (!options.time.max) {
+			last = interpolate$1(table, ''time'', ticks[ticks.length - 1], ''pos'');
+			if (ticks.length === 1) {
+				end = last;
+			} else {
+				end = (last - interpolate$1(table, ''time'', ticks[ticks.length - 2], ''pos'')) / 2;
+			}
+		}
+	}
 
+	return {start: start, end: end};
+}
 
-	Chart.Type.extend({
-		//Passing in a name registers this chart in the Chart namespace
-		name: "Doughnut",
-		//Providing a defaults will also register the deafults in the chart namespace
-		defaults : defaultConfig,
-		//Initialize is fired when the chart is initialized - Data is passed in as a parameter
-		//Config is automatically merged by the core of Chart.js, and is available at this.options
-		initialize:  function(data){
+function ticksFromTimestamps(scale, values, majorUnit) {
+	var ticks = [];
+	var i, ilen, value, major;
 
-			//Declare segments as a static property to prevent inheriting across the Chart type prototype
-			this.segments = [];
-			this.outerRadius = (helpers.min([this.chart.width,this.chart.height]) -	this.options.segmentStrokeWidth/2)/2;
+	for (i = 0, ilen = values.length; i < ilen; ++i) {
+		value = values[i];
+		major = majorUnit ? value === +scale._adapter.startOf(value, majorUnit) : false;
 
-			this.SegmentArc = Chart.Arc.extend({
-				ctx : this.chart.ctx,
-				x : this.chart.width/2,
-				y : this.chart.height/2
-			});
+		ticks.push({
+			value: value,
+			major: major
+		});
+	}
 
-			//Set up tooltip events on the chart
-			if (this.options.showTooltips){
-				helpers.bindEvents(this, this.options.tooltipEvents, function(evt){
-					var activeSegments = (evt.type !== ''mouseout'') ? this.getSegmentsAtEvent(evt) : [];
+	return ticks;
+}
 
-					helpers.each(this.segments,function(segment){
-						segment.restore(["fillColor"]);
-					});
-					helpers.each(activeSegments,function(activeSegment){
-						activeSegment.fillColor = activeSegment.highlightColor;
-					});
-					this.showTooltip(activeSegments);
-				});
-			}
-			this.calculateTotal(data);
+var defaultConfig$4 = {
+	position: ''bottom'',
+
+	/**
+	 * Data distribution along the scale:
+	 * - ''linear'': data are spread according to their time (distances can vary),
+	 * - ''series'': data are spread at the same distance from each other.
+	 * @see https://github.com/chartjs/Chart.js/pull/4507
+	 * @since 2.7.0
+	 */
+	distribution: ''linear'',
+
+	/**
+	 * Scale boundary strategy (bypassed by min/max time options)
+	 * - `data`: make sure data are fully visible, ticks outside are removed
+	 * - `ticks`: make sure ticks are fully visible, data outside are truncated
+	 * @see https://github.com/chartjs/Chart.js/pull/4556
+	 * @since 2.7.0
+	 */
+	bounds: ''data'',
+
+	adapters: {},
+	time: {
+		parser: false, // false == a pattern string from https://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
+		format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from https://momentjs.com/docs/#/parsing/string-format/
+		unit: false, // false == automatic or override with week, month, year, etc.
+		round: false, // none, or override with week, month, year, etc.
+		displayFormat: false, // DEPRECATED
+		isoWeekday: false, // override week start day - see https://momentjs.com/docs/#/get-set/iso-weekday/
+		minUnit: ''millisecond'',
+		displayFormats: {}
+	},
+	ticks: {
+		autoSkip: false,
+
+		/**
+		 * Ticks generation input values:
+		 * - ''auto'': generates "optimal" ticks based on scale size and time options.
+		 * - ''data'': generates ticks from data (including labels from data {t|x|y} objects).
+		 * - ''labels'': generates ticks from user given `data.labels` values ONLY.
+		 * @see https://github.com/chartjs/Chart.js/pull/4507
+		 * @since 2.7.0
+		 */
+		source: ''auto'',
+
+		major: {
+			enabled: false
+		}
+	}
+};
+
+var scale_time = core_scale.extend({
+	initialize: function() {
+		this.mergeTicksOptions();
+		core_scale.prototype.initialize.call(this);
+	},
+
+	update: function() {
+		var me = this;
+		var options = me.options;
+		var time = options.time || (options.time = {});
+		var adapter = me._adapter = new core_adapters._date(options.adapters.date);
+
+		// DEPRECATIONS: output a message only one time per update
+		if (time.format) {
+			console.warn(''options.time.format is deprecated and replaced by options.time.parser.'');
+		}
 
-			helpers.each(data,function(datapoint, index){
-				this.addData(datapoint, index, true);
-			},this);
+		// Backward compatibility: before introducing adapter, `displayFormats` was
+		// supposed to contain *all* unit/string pairs but this can''t be resolved
+		// when loading the scale (adapters are loaded afterward), so let''s populate
+		// missing formats on update
+		helpers$1.mergeIf(time.displayFormats, adapter.formats());
+
+		return core_scale.prototype.update.apply(me, arguments);
+	},
+
+	/**
+	 * Allows data to be referenced via ''t'' attribute
+	 */
+	getRightValue: function(rawValue) {
+		if (rawValue && rawValue.t !== undefined) {
+			rawValue = rawValue.t;
+		}
+		return core_scale.prototype.getRightValue.call(this, rawValue);
+	},
+
+	determineDataLimits: function() {
+		var me = this;
+		var chart = me.chart;
+		var adapter = me._adapter;
+		var timeOpts = me.options.time;
+		var unit = timeOpts.unit || ''day'';
+		var min = MAX_INTEGER;
+		var max = MIN_INTEGER;
+		var timestamps = [];
+		var datasets = [];
+		var labels = [];
+		var i, j, ilen, jlen, data, timestamp;
+		var dataLabels = chart.data.labels || [];
+
+		// Convert labels to timestamps
+		for (i = 0, ilen = dataLabels.length; i < ilen; ++i) {
+			labels.push(parse(me, dataLabels[i]));
+		}
 
-			this.render();
-		},
-		getSegmentsAtEvent : function(e){
-			var segmentsArray = [];
+		// Convert data to timestamps
+		for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
+			if (chart.isDatasetVisible(i)) {
+				data = chart.data.datasets[i].data;
 
-			var location = helpers.getRelativePosition(e);
+				// Let''s consider that all data have the same format.
+				if (helpers$1.isObject(data[0])) {
+					datasets[i] = [];
 
-			helpers.each(this.segments,function(segment){
-				if (segment.inRange(location.x,location.y)) segmentsArray.push(segment);
-			},this);
-			return segmentsArray;
-		},
-		addData : function(segment, atIndex, silent){
-			var index = atIndex || this.segments.length;
-			this.segments.splice(index, 0, new this.SegmentArc({
-				value : segment.value,
-				outerRadius : (this.options.animateScale) ? 0 : this.outerRadius,
-				innerRadius : (this.options.animateScale) ? 0 : (this.outerRadius/100) * this.options.percentageInnerCutout,
-				fillColor : segment.color,
-				highlightColor : segment.highlight || segment.color,
-				showStroke : this.options.segmentShowStroke,
-				strokeWidth : this.options.segmentStrokeWidth,
-				strokeColor : this.options.segmentStrokeColor,
-				startAngle : Math.PI * 1.5,
-				circumference : (this.options.animateRotate) ? 0 : this.calculateCircumference(segment.value),
-				label : segment.label
-			}));
-			if (!silent){
-				this.reflow();
-				this.update();
+					for (j = 0, jlen = data.length; j < jlen; ++j) {
+						timestamp = parse(me, data[j]);
+						timestamps.push(timestamp);
+						datasets[i][j] = timestamp;
+					}
+				} else {
+					for (j = 0, jlen = labels.length; j < jlen; ++j) {
+						timestamps.push(labels[j]);
+					}
+					datasets[i] = labels.slice(0);
+				}
+			} else {
+				datasets[i] = [];
 			}
-		},
-		calculateCircumference : function(value){
-			return (Math.PI*2)*(value / this.total);
-		},
-		calculateTotal : function(data){
-			this.total = 0;
-			helpers.each(data,function(segment){
-				this.total += segment.value;
-			},this);
-		},
-		update : function(){
-			this.calculateTotal(this.segments);
+		}
 
-			// Reset any highlight colours before updating.
-			helpers.each(this.activeElements, function(activeElement){
-				activeElement.restore([''fillColor'']);
-			});
+		if (labels.length) {
+			// Sort labels **after** data have been converted
+			labels = arrayUnique(labels).sort(sorter);
+			min = Math.min(min, labels[0]);
+			max = Math.max(max, labels[labels.length - 1]);
+		}
 
-			helpers.each(this.segments,function(segment){
-				segment.save();
-			});
-			this.render();
-		},
+		if (timestamps.length) {
+			timestamps = arrayUnique(timestamps).sort(sorter);
+			min = Math.min(min, timestamps[0]);
+			max = Math.max(max, timestamps[timestamps.length - 1]);
+		}
 
-		removeData: function(atIndex){
-			var indexToDelete = (helpers.isNumber(atIndex)) ? atIndex : this.segments.length-1;
-			this.segments.splice(indexToDelete, 1);
-			this.reflow();
-			this.update();
-		},
+		min = parse(me, timeOpts.min) || min;
+		max = parse(me, timeOpts.max) || max;
 
-		reflow : function(){
-			helpers.extend(this.SegmentArc.prototype,{
-				x : this.chart.width/2,
-				y : this.chart.height/2
-			});
-			this.outerRadius = (helpers.min([this.chart.width,this.chart.height]) -	this.options.segmentStrokeWidth/2)/2;
-			helpers.each(this.segments, function(segment){
-				segment.update({
-					outerRadius : this.outerRadius,
-					innerRadius : (this.outerRadius/100) * this.options.percentageInnerCutout
-				});
-			}, this);
-		},
-		draw : function(easeDecimal){
-			var animDecimal = (easeDecimal) ? easeDecimal : 1;
-			this.clear();
-			helpers.each(this.segments,function(segment,index){
-				segment.transition({
-					circumference : this.calculateCircumference(segment.value),
-					outerRadius : this.outerRadius,
-					innerRadius : (this.outerRadius/100) * this.options.percentageInnerCutout
-				},animDecimal);
-
-				segment.endAngle = segment.startAngle + segment.circumference;
-
-				segment.draw();
-				if (index === 0){
-					segment.startAngle = Math.PI * 1.5;
-				}
-				//Check to see if it''s the last segment, if not get the next and update the start angle
-				if (index < this.segments.length-1){
-					this.segments[index+1].startAngle = segment.endAngle;
-				}
-			},this);
+		// In case there is no valid min/max, set limits based on unit time option
+		min = min === MAX_INTEGER ? +adapter.startOf(Date.now(), unit) : min;
+		max = max === MIN_INTEGER ? +adapter.endOf(Date.now(), unit) + 1 : max;
 
+		// Make sure that max is strictly higher than min (required by the lookup table)
+		me.min = Math.min(min, max);
+		me.max = Math.max(min + 1, max);
+
+		// PRIVATE
+		me._horizontal = me.isHorizontal();
+		me._table = [];
+		me._timestamps = {
+			data: timestamps,
+			datasets: datasets,
+			labels: labels
+		};
+	},
+
+	buildTicks: function() {
+		var me = this;
+		var min = me.min;
+		var max = me.max;
+		var options = me.options;
+		var timeOpts = options.time;
+		var timestamps = [];
+		var ticks = [];
+		var i, ilen, timestamp;
+
+		switch (options.ticks.source) {
+		case ''data'':
+			timestamps = me._timestamps.data;
+			break;
+		case ''labels'':
+			timestamps = me._timestamps.labels;
+			break;
+		case ''auto'':
+		default:
+			timestamps = generate(me, min, max, me.getLabelCapacity(min), options);
 		}
-	});
 
-	Chart.types.Doughnut.extend({
-		name : "Pie",
-		defaults : helpers.merge(defaultConfig,{percentageInnerCutout : 0})
-	});
+		if (options.bounds === ''ticks'' && timestamps.length) {
+			min = timestamps[0];
+			max = timestamps[timestamps.length - 1];
+		}
 
-}).call(this);
-(function(){
-	"use strict";
+		// Enforce limits with user min/max options
+		min = parse(me, timeOpts.min) || min;
+		max = parse(me, timeOpts.max) || max;
 
-	var root = this,
-		Chart = root.Chart,
-		helpers = Chart.helpers;
+		// Remove ticks outside the min/max range
+		for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
+			timestamp = timestamps[i];
+			if (timestamp >= min && timestamp <= max) {
+				ticks.push(timestamp);
+			}
+		}
 
-	var defaultConfig = {
+		me.min = min;
+		me.max = max;
 
-		///Boolean - Whether grid lines are shown across the chart
-		scaleShowGridLines : true,
+		// PRIVATE
+		me._unit = timeOpts.unit || determineUnitForFormatting(me, ticks, timeOpts.minUnit, me.min, me.max);
+		me._majorUnit = determineMajorUnit(me._unit);
+		me._table = buildLookupTable(me._timestamps.data, min, max, options.distribution);
+		me._offsets = computeOffsets(me._table, ticks, min, max, options);
 
-		//String - Colour of the grid lines
-		scaleGridLineColor : "rgba(0,0,0,.05)",
+		if (options.ticks.reverse) {
+			ticks.reverse();
+		}
 
-		//Number - Width of the grid lines
-		scaleGridLineWidth : 1,
+		return ticksFromTimestamps(me, ticks, me._majorUnit);
+	},
 
-		//Boolean - Whether to show horizontal lines (except X axis)
-		scaleShowHorizontalLines: true,
+	getLabelForIndex: function(index, datasetIndex) {
+		var me = this;
+		var adapter = me._adapter;
+		var data = me.chart.data;
+		var timeOpts = me.options.time;
+		var label = data.labels && index < data.labels.length ? data.labels[index] : '''';
+		var value = data.datasets[datasetIndex].data[index];
 
-		//Boolean - Whether to show vertical lines (except Y axis)
-		scaleShowVerticalLines: true,
+		if (helpers$1.isObject(value)) {
+			label = me.getRightValue(value);
+		}
+		if (timeOpts.tooltipFormat) {
+			return adapter.format(toTimestamp(me, label), timeOpts.tooltipFormat);
+		}
+		if (typeof label === ''string'') {
+			return label;
+		}
+		return adapter.format(toTimestamp(me, label), timeOpts.displayFormats.datetime);
+	},
+
+	/**
+	 * Function to format an individual tick mark
+	 * @private
+	 */
+	tickFormatFunction: function(time, index, ticks, format) {
+		var me = this;
+		var adapter = me._adapter;
+		var options = me.options;
+		var formats = options.time.displayFormats;
+		var minorFormat = formats[me._unit];
+		var majorUnit = me._majorUnit;
+		var majorFormat = formats[majorUnit];
+		var majorTime = +adapter.startOf(time, majorUnit);
+		var majorTickOpts = options.ticks.major;
+		var major = majorTickOpts.enabled && majorUnit && majorFormat && time === majorTime;
+		var label = adapter.format(time, format ? format : major ? majorFormat : minorFormat);
+		var tickOpts = major ? majorTickOpts : options.ticks.minor;
+		var formatter = valueOrDefault$c(tickOpts.callback, tickOpts.userCallback);
+
+		return formatter ? formatter(label, index, ticks) : label;
+	},
+
+	convertTicksToLabels: function(ticks) {
+		var labels = [];
+		var i, ilen;
+
+		for (i = 0, ilen = ticks.length; i < ilen; ++i) {
+			labels.push(this.tickFormatFunction(ticks[i].value, i, ticks));
+		}
 
-		//Boolean - Whether the line is curved between points
-		bezierCurve : true,
+		return labels;
+	},
+
+	/**
+	 * @private
+	 */
+	getPixelForOffset: function(time) {
+		var me = this;
+		var isReverse = me.options.ticks.reverse;
+		var size = me._horizontal ? me.width : me.height;
+		var start = me._horizontal ? isReverse ? me.right : me.left : isReverse ? me.bottom : me.top;
+		var pos = interpolate$1(me._table, ''time'', time, ''pos'');
+		var offset = size * (me._offsets.start + pos) / (me._offsets.start + 1 + me._offsets.end);
+
+		return isReverse ? start - offset : start + offset;
+	},
+
+	getPixelForValue: function(value, index, datasetIndex) {
+		var me = this;
+		var time = null;
+
+		if (index !== undefined && datasetIndex !== undefined) {
+			time = me._timestamps.datasets[datasetIndex][index];
+		}
 
-		//Number - Tension of the bezier curve between points
-		bezierCurveTension : 0.4,
+		if (time === null) {
+			time = parse(me, value);
+		}
 
-		//Boolean - Whether to show a dot for each point
-		pointDot : true,
+		if (time !== null) {
+			return me.getPixelForOffset(time);
+		}
+	},
+
+	getPixelForTick: function(index) {
+		var ticks = this.getTicks();
+		return index >= 0 && index < ticks.length ?
+			this.getPixelForOffset(ticks[index].value) :
+			null;
+	},
+
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var size = me._horizontal ? me.width : me.height;
+		var start = me._horizontal ? me.left : me.top;
+		var pos = (size ? (pixel - start) / size : 0) * (me._offsets.start + 1 + me._offsets.start) - me._offsets.end;
+		var time = interpolate$1(me._table, ''pos'', pos, ''time'');
+
+		// DEPRECATION, we should return time directly
+		return me._adapter._create(time);
+	},
+
+	/**
+	 * Crude approximation of what the label width might be
+	 * @private
+	 */
+	getLabelWidth: function(label) {
+		var me = this;
+		var ticksOpts = me.options.ticks;
+		var tickLabelWidth = me.ctx.measureText(label).width;
+		var angle = helpers$1.toRadians(ticksOpts.maxRotation);
+		var cosRotation = Math.cos(angle);
+		var sinRotation = Math.sin(angle);
+		var tickFontSize = valueOrDefault$c(ticksOpts.fontSize, core_defaults.global.defaultFontSize);
+
+		return (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
+	},
+
+	/**
+	 * @private
+	 */
+	getLabelCapacity: function(exampleTime) {
+		var me = this;
+
+		// pick the longest format (milliseconds) for guestimation
+		var format = me.options.time.displayFormats.millisecond;
+		var exampleLabel = me.tickFormatFunction(exampleTime, 0, [], format);
+		var tickLabelWidth = me.getLabelWidth(exampleLabel);
+		var innerWidth = me.isHorizontal() ? me.width : me.height;
+		var capacity = Math.floor(innerWidth / tickLabelWidth);
+
+		return capacity > 0 ? capacity : 1;
+	}
+});
+
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$4 = defaultConfig$4;
+scale_time._defaults = _defaults$4;
+
+var scales = {
+	category: scale_category,
+	linear: scale_linear,
+	logarithmic: scale_logarithmic,
+	radialLinear: scale_radialLinear,
+	time: scale_time
+};
+
+var FORMATS = {
+	datetime: ''MMM D, YYYY, h:mm:ss a'',
+	millisecond: ''h:mm:ss.SSS a'',
+	second: ''h:mm:ss a'',
+	minute: ''h:mm a'',
+	hour: ''hA'',
+	day: ''MMM D'',
+	week: ''ll'',
+	month: ''MMM YYYY'',
+	quarter: ''[Q]Q - YYYY'',
+	year: ''YYYY''
+};
+
+core_adapters._date.override(moment ? {
+	_id: ''moment'', // DEBUG ONLY
+
+	formats: function() {
+		return FORMATS;
+	},
+
+	parse: function(value, format) {
+		if (typeof value === ''string'' && typeof format === ''string'') {
+			value = moment(value, format);
+		} else if (!(value instanceof moment)) {
+			value = moment(value);
+		}
+		return value.isValid() ? value.valueOf() : null;
+	},
 
-		//Number - Radius of each point dot in pixels
-		pointDotRadius : 4,
+	format: function(time, format) {
+		return moment(time).format(format);
+	},
 
-		//Number - Pixel width of point dot stroke
-		pointDotStrokeWidth : 1,
+	add: function(time, amount, unit) {
+		return moment(time).add(amount, unit).valueOf();
+	},
 
-		//Number - amount extra to add to the radius to cater for hit detection outside the drawn point
-		pointHitDetectionRadius : 20,
+	diff: function(max, min, unit) {
+		return moment.duration(moment(max).diff(moment(min))).as(unit);
+	},
 
-		//Boolean - Whether to show a stroke for datasets
-		datasetStroke : true,
+	startOf: function(time, unit, weekday) {
+		time = moment(time);
+		if (unit === ''isoWeek'') {
+			return time.isoWeekday(weekday).valueOf();
+		}
+		return time.startOf(unit).valueOf();
+	},
+
+	endOf: function(time, unit) {
+		return moment(time).endOf(unit).valueOf();
+	},
+
+	// DEPRECATIONS
+
+	/**
+	 * Provided for backward compatibility with scale.getValueForPixel().
+	 * @deprecated since version 2.8.0
+	 * @todo remove at version 3
+	 * @private
+	 */
+	_create: function(time) {
+		return moment(time);
+	},
+} : {});
+
+core_defaults._set(''global'', {
+	plugins: {
+		filler: {
+			propagate: true
+		}
+	}
+});
+
+var mappers = {
+	dataset: function(source) {
+		var index = source.fill;
+		var chart = source.chart;
+		var meta = chart.getDatasetMeta(index);
+		var visible = meta && chart.isDatasetVisible(index);
+		var points = (visible && meta.dataset._children) || [];
+		var length = points.length || 0;
+
+		return !length ? null : function(point, i) {
+			return (i < length && points[i]._view) || null;
+		};
+	},
 
-		//Number - Pixel width of dataset stroke
-		datasetStrokeWidth : 2,
+	boundary: function(source) {
+		var boundary = source.boundary;
+		var x = boundary ? boundary.x : null;
+		var y = boundary ? boundary.y : null;
 
-		//Boolean - Whether to fill the dataset with a colour
-		datasetFill : true,
+		return function(point) {
+			return {
+				x: x === null ? point.x : x,
+				y: y === null ? point.y : y,
+			};
+		};
+	}
+};
 
-		//String - A legend template
-		legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].strokeColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>"
+// @todo if (fill[0] === ''#'')
+function decodeFill(el, index, count) {
+	var model = el._model || {};
+	var fill = model.fill;
+	var target;
 
-	};
+	if (fill === undefined) {
+		fill = !!model.backgroundColor;
+	}
 
+	if (fill === false || fill === null) {
+		return false;
+	}
 
-	Chart.Type.extend({
-		name: "Line",
-		defaults : defaultConfig,
-		initialize:  function(data){
-			//Declare the extension of the default point, to cater for the options passed in to the constructor
-			this.PointClass = Chart.Point.extend({
-				strokeWidth : this.options.pointDotStrokeWidth,
-				radius : this.options.pointDotRadius,
-				display: this.options.pointDot,
-				hitDetectionRadius : this.options.pointHitDetectionRadius,
-				ctx : this.chart.ctx,
-				inRange : function(mouseX){
-					return (Math.pow(mouseX-this.x, 2) < Math.pow(this.radius + this.hitDetectionRadius,2));
-				}
-			});
+	if (fill === true) {
+		return ''origin'';
+	}
 
-			this.datasets = [];
+	target = parseFloat(fill, 10);
+	if (isFinite(target) && Math.floor(target) === target) {
+		if (fill[0] === ''-'' || fill[0] === ''+'') {
+			target = index + target;
+		}
 
-			//Set up tooltip events on the chart
-			if (this.options.showTooltips){
-				helpers.bindEvents(this, this.options.tooltipEvents, function(evt){
-					var activePoints = (evt.type !== ''mouseout'') ? this.getPointsAtEvent(evt) : [];
-					this.eachPoints(function(point){
-						point.restore([''fillColor'', ''strokeColor'']);
-					});
-					helpers.each(activePoints, function(activePoint){
-						activePoint.fillColor = activePoint.highlightFill;
-						activePoint.strokeColor = activePoint.highlightStroke;
-					});
-					this.showTooltip(activePoints);
-				});
-			}
+		if (target === index || target < 0 || target >= count) {
+			return false;
+		}
 
-			//Iterate through each of the datasets, and build this into a property of the chart
-			helpers.each(data.datasets,function(dataset){
+		return target;
+	}
 
-				var datasetObject = {
-					label : dataset.label || null,
-					fillColor : dataset.fillColor,
-					strokeColor : dataset.strokeColor,
-					pointColor : dataset.pointColor,
-					pointStrokeColor : dataset.pointStrokeColor,
-					points : []
-				};
+	switch (fill) {
+	// compatibility
+	case ''bottom'':
+		return ''start'';
+	case ''top'':
+		return ''end'';
+	case ''zero'':
+		return ''origin'';
+	// supported boundaries
+	case ''origin'':
+	case ''start'':
+	case ''end'':
+		return fill;
+	// invalid fill values
+	default:
+		return false;
+	}
+}
 
-				this.datasets.push(datasetObject);
+function computeBoundary(source) {
+	var model = source.el._model || {};
+	var scale = source.el._scale || {};
+	var fill = source.fill;
+	var target = null;
+	var horizontal;
 
+	if (isFinite(fill)) {
+		return null;
+	}
 
-				helpers.each(dataset.data,function(dataPoint,index){
-					//Add a new point for each piece of data, passing any required data to draw.
-					datasetObject.points.push(new this.PointClass({
-						value : dataPoint,
-						label : data.labels[index],
-						datasetLabel: dataset.label,
-						strokeColor : dataset.pointStrokeColor,
-						fillColor : dataset.pointColor,
-						highlightFill : dataset.pointHighlightFill || dataset.pointColor,
-						highlightStroke : dataset.pointHighlightStroke || dataset.pointStrokeColor
-					}));
-				},this);
+	// Backward compatibility: until v3, we still need to support boundary values set on
+	// the model (scaleTop, scaleBottom and scaleZero) because some external plugins and
+	// controllers might still use it (e.g. the Smith chart).
+
+	if (fill === ''start'') {
+		target = model.scaleBottom === undefined ? scale.bottom : model.scaleBottom;
+	} else if (fill === ''end'') {
+		target = model.scaleTop === undefined ? scale.top : model.scaleTop;
+	} else if (model.scaleZero !== undefined) {
+		target = model.scaleZero;
+	} else if (scale.getBasePosition) {
+		target = scale.getBasePosition();
+	} else if (scale.getBasePixel) {
+		target = scale.getBasePixel();
+	}
 
-				this.buildScale(data.labels);
+	if (target !== undefined && target !== null) {
+		if (target.x !== undefined && target.y !== undefined) {
+			return target;
+		}
 
+		if (helpers$1.isFinite(target)) {
+			horizontal = scale.isHorizontal();
+			return {
+				x: horizontal ? target : null,
+				y: horizontal ? null : target
+			};
+		}
+	}
 
-				this.eachPoints(function(point, index){
-					helpers.extend(point, {
-						x: this.scale.calculateX(index),
-						y: this.scale.endPoint
-					});
-					point.save();
-				}, this);
+	return null;
+}
 
-			},this);
+function resolveTarget(sources, index, propagate) {
+	var source = sources[index];
+	var fill = source.fill;
+	var visited = [index];
+	var target;
 
+	if (!propagate) {
+		return fill;
+	}
 
-			this.render();
-		},
-		update : function(){
-			this.scale.update();
-			// Reset any highlight colours before updating.
-			helpers.each(this.activeElements, function(activeElement){
-				activeElement.restore([''fillColor'', ''strokeColor'']);
-			});
-			this.eachPoints(function(point){
-				point.save();
-			});
-			this.render();
-		},
-		eachPoints : function(callback){
-			helpers.each(this.datasets,function(dataset){
-				helpers.each(dataset.points,callback,this);
-			},this);
-		},
-		getPointsAtEvent : function(e){
-			var pointsArray = [],
-				eventPosition = helpers.getRelativePosition(e);
-			helpers.each(this.datasets,function(dataset){
-				helpers.each(dataset.points,function(point){
-					if (point.inRange(eventPosition.x,eventPosition.y)) pointsArray.push(point);
-				});
-			},this);
-			return pointsArray;
-		},
-		buildScale : function(labels){
-			var self = this;
+	while (fill !== false && visited.indexOf(fill) === -1) {
+		if (!isFinite(fill)) {
+			return fill;
+		}
 
-			var dataTotal = function(){
-				var values = [];
-				self.eachPoints(function(point){
-					values.push(point.value);
-				});
+		target = sources[fill];
+		if (!target) {
+			return false;
+		}
 
-				return values;
-			};
+		if (target.visible) {
+			return fill;
+		}
 
-			var scaleOptions = {
-				templateString : this.options.scaleLabel,
-				height : this.chart.height,
-				width : this.chart.width,
-				ctx : this.chart.ctx,
-				textColor : this.options.scaleFontColor,
-				fontSize : this.options.scaleFontSize,
-				fontStyle : this.options.scaleFontStyle,
-				fontFamily : this.options.scaleFontFamily,
-				valuesCount : labels.length,
-				beginAtZero : this.options.scaleBeginAtZero,
-				integersOnly : this.options.scaleIntegersOnly,
-				calculateYRange : function(currentHeight){
-					var updatedRanges = helpers.calculateScaleRange(
-						dataTotal(),
-						currentHeight,
-						this.fontSize,
-						this.beginAtZero,
-						this.integersOnly
-					);
-					helpers.extend(this, updatedRanges);
-				},
-				xLabels : labels,
-				font : helpers.fontString(this.options.scaleFontSize, this.options.scaleFontStyle, this.options.scaleFontFamily),
-				lineWidth : this.options.scaleLineWidth,
-				lineColor : this.options.scaleLineColor,
-				showHorizontalLines : this.options.scaleShowHorizontalLines,
-				showVerticalLines : this.options.scaleShowVerticalLines,
-				gridLineWidth : (this.options.scaleShowGridLines) ? this.options.scaleGridLineWidth : 0,
-				gridLineColor : (this.options.scaleShowGridLines) ? this.options.scaleGridLineColor : "rgba(0,0,0,0)",
-				padding: (this.options.showScale) ? 0 : this.options.pointDotRadius + this.options.pointDotStrokeWidth,
-				showLabels : this.options.scaleShowLabels,
-				display : this.options.showScale
-			};
+		visited.push(fill);
+		fill = target.fill;
+	}
 
-			if (this.options.scaleOverride){
-				helpers.extend(scaleOptions, {
-					calculateYRange: helpers.noop,
-					steps: this.options.scaleSteps,
-					stepValue: this.options.scaleStepWidth,
-					min: this.options.scaleStartValue,
-					max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth)
-				});
-			}
+	return false;
+}
 
+function createMapper(source) {
+	var fill = source.fill;
+	var type = ''dataset'';
 
-			this.scale = new Chart.Scale(scaleOptions);
-		},
-		addData : function(valuesArray,label){
-			//Map the values array for each of the datasets
-
-			helpers.each(valuesArray,function(value,datasetIndex){
-				//Add a new point for each piece of data, passing any required data to draw.
-				this.datasets[datasetIndex].points.push(new this.PointClass({
-					value : value,
-					label : label,
-					x: this.scale.calculateX(this.scale.valuesCount+1),
-					y: this.scale.endPoint,
-					strokeColor : this.datasets[datasetIndex].pointStrokeColor,
-					fillColor : this.datasets[datasetIndex].pointColor
-				}));
-			},this);
+	if (fill === false) {
+		return null;
+	}
 
-			this.scale.addXLabel(label);
-			//Then re-render the chart.
-			this.update();
-		},
-		removeData : function(){
-			this.scale.removeXLabel();
-			//Then re-render the chart.
-			helpers.each(this.datasets,function(dataset){
-				dataset.points.shift();
-			},this);
-			this.update();
-		},
-		reflow : function(){
-			var newScaleProps = helpers.extend({
-				height : this.chart.height,
-				width : this.chart.width
-			});
-			this.scale.update(newScaleProps);
-		},
-		draw : function(ease){
-			var easingDecimal = ease || 1;
-			this.clear();
+	if (!isFinite(fill)) {
+		type = ''boundary'';
+	}
 
-			var ctx = this.chart.ctx;
+	return mappers[type](source);
+}
 
-			// Some helper methods for getting the next/prev points
-			var hasValue = function(item){
-				return item.value !== null;
-			},
-			nextPoint = function(point, collection, index){
-				return helpers.findNextWhere(collection, hasValue, index) || point;
-			},
-			previousPoint = function(point, collection, index){
-				return helpers.findPreviousWhere(collection, hasValue, index) || point;
-			};
+function isDrawable(point) {
+	return point && !point.skip;
+}
 
-			this.scale.draw(easingDecimal);
+function drawArea(ctx, curve0, curve1, len0, len1) {
+	var i;
 
+	if (!len0 || !len1) {
+		return;
+	}
 
-			helpers.each(this.datasets,function(dataset){
-				var pointsWithValues = helpers.where(dataset.points, hasValue);
+	// building first area curve (normal)
+	ctx.moveTo(curve0[0].x, curve0[0].y);
+	for (i = 1; i < len0; ++i) {
+		helpers$1.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
+	}
 
-				//Transition each point first so that the line and point drawing isn''t out of sync
-				//We can use this extra loop to calculate the control points of this dataset also in this loop
+	// joining the two area curves
+	ctx.lineTo(curve1[len1 - 1].x, curve1[len1 - 1].y);
 
-				helpers.each(dataset.points, function(point, index){
-					if (point.hasValue()){
-						point.transition({
-							y : this.scale.calculateY(point.value),
-							x : this.scale.calculateX(index)
-						}, easingDecimal);
-					}
-				},this);
-
-
-				// Control points need to be calculated in a seperate loop, because we need to know the current x/y of the point
-				// This would cause issues when there is no animation, because the y of the next point would be 0, so beziers would be skewed
-				if (this.options.bezierCurve){
-					helpers.each(pointsWithValues, function(point, index){
-						var tension = (index > 0 && index < pointsWithValues.length - 1) ? this.options.bezierCurveTension : 0;
-						point.controlPoints = helpers.splineCurve(
-							previousPoint(point, pointsWithValues, index),
-							point,
-							nextPoint(point, pointsWithValues, index),
-							tension
-						);
-
-						// Prevent the bezier going outside of the bounds of the graph
-
-						// Cap puter bezier handles to the upper/lower scale bounds
-						if (point.controlPoints.outer.y > this.scale.endPoint){
-							point.controlPoints.outer.y = this.scale.endPoint;
-						}
-						else if (point.controlPoints.outer.y < this.scale.startPoint){
-							point.controlPoints.outer.y = this.scale.startPoint;
-						}
+	// building opposite area curve (reverse)
+	for (i = len1 - 1; i > 0; --i) {
+		helpers$1.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
+	}
+}
 
-						// Cap inner bezier handles to the upper/lower scale bounds
-						if (point.controlPoints.inner.y > this.scale.endPoint){
-							point.controlPoints.inner.y = this.scale.endPoint;
-						}
-						else if (point.controlPoints.inner.y < this.scale.startPoint){
-							point.controlPoints.inner.y = this.scale.startPoint;
-						}
-					},this);
+function doFill(ctx, points, mapper, view, color, loop) {
+	var count = points.length;
+	var span = view.spanGaps;
+	var curve0 = [];
+	var curve1 = [];
+	var len0 = 0;
+	var len1 = 0;
+	var i, ilen, index, p0, p1, d0, d1;
+
+	ctx.beginPath();
+
+	for (i = 0, ilen = (count + !!loop); i < ilen; ++i) {
+		index = i % count;
+		p0 = points[index]._view;
+		p1 = mapper(p0, index, view);
+		d0 = isDrawable(p0);
+		d1 = isDrawable(p1);
+
+		if (d0 && d1) {
+			len0 = curve0.push(p0);
+			len1 = curve1.push(p1);
+		} else if (len0 && len1) {
+			if (!span) {
+				drawArea(ctx, curve0, curve1, len0, len1);
+				len0 = len1 = 0;
+				curve0 = [];
+				curve1 = [];
+			} else {
+				if (d0) {
+					curve0.push(p0);
 				}
+				if (d1) {
+					curve1.push(p1);
+				}
+			}
+		}
+	}
 
+	drawArea(ctx, curve0, curve1, len0, len1);
 
-				//Draw the line between all the points
-				ctx.lineWidth = this.options.datasetStrokeWidth;
-				ctx.strokeStyle = dataset.strokeColor;
-				ctx.beginPath();
+	ctx.closePath();
+	ctx.fillStyle = color;
+	ctx.fill();
+}
 
-				helpers.each(pointsWithValues, function(point, index){
-					if (index === 0){
-						ctx.moveTo(point.x, point.y);
-					}
-					else{
-						if(this.options.bezierCurve){
-							var previous = previousPoint(point, pointsWithValues, index);
-
-							ctx.bezierCurveTo(
-								previous.controlPoints.outer.x,
-								previous.controlPoints.outer.y,
-								point.controlPoints.inner.x,
-								point.controlPoints.inner.y,
-								point.x,
-								point.y
-							);
-						}
-						else{
-							ctx.lineTo(point.x,point.y);
-						}
-					}
-				}, this);
+var plugin_filler = {
+	id: ''filler'',
+
+	afterDatasetsUpdate: function(chart, options) {
+		var count = (chart.data.datasets || []).length;
+		var propagate = options.propagate;
+		var sources = [];
+		var meta, i, el, source;
+
+		for (i = 0; i < count; ++i) {
+			meta = chart.getDatasetMeta(i);
+			el = meta.dataset;
+			source = null;
+
+			if (el && el._model && el instanceof elements.Line) {
+				source = {
+					visible: chart.isDatasetVisible(i),
+					fill: decodeFill(el, i, count),
+					chart: chart,
+					el: el
+				};
+			}
 
-				ctx.stroke();
+			meta.$filler = source;
+			sources.push(source);
+		}
 
-				if (this.options.datasetFill && pointsWithValues.length > 0){
-					//Round off the line by going to the base of the chart, back to the start, then fill.
-					ctx.lineTo(pointsWithValues[pointsWithValues.length - 1].x, this.scale.endPoint);
-					ctx.lineTo(pointsWithValues[0].x, this.scale.endPoint);
-					ctx.fillStyle = dataset.fillColor;
-					ctx.closePath();
-					ctx.fill();
-				}
+		for (i = 0; i < count; ++i) {
+			source = sources[i];
+			if (!source) {
+				continue;
+			}
 
-				//Now draw the points over the line
-				//A little inefficient double looping, but better than the line
-				//lagging behind the point positions
-				helpers.each(pointsWithValues,function(point){
-					point.draw();
-				});
-			},this);
+			source.fill = resolveTarget(sources, i, propagate);
+			source.boundary = computeBoundary(source);
+			source.mapper = createMapper(source);
 		}
-	});
-
+	},
 
-}).call(this);
+	beforeDatasetDraw: function(chart, args) {
+		var meta = args.meta.$filler;
+		if (!meta) {
+			return;
+		}
 
-(function(){
-	"use strict";
+		var ctx = chart.ctx;
+		var el = meta.el;
+		var view = el._view;
+		var points = el._children || [];
+		var mapper = meta.mapper;
+		var color = view.backgroundColor || core_defaults.global.defaultColor;
+
+		if (mapper && color && points.length) {
+			helpers$1.canvas.clipArea(ctx, chart.chartArea);
+			doFill(ctx, points, mapper, view, color, el._loop);
+			helpers$1.canvas.unclipArea(ctx);
+		}
+	}
+};
 
-	var root = this,
-		Chart = root.Chart,
-		//Cache a local reference to Chart.helpers
-		helpers = Chart.helpers;
+var noop$1 = helpers$1.noop;
+var valueOrDefault$d = helpers$1.valueOrDefault;
 
-	var defaultConfig = {
-		//Boolean - Show a backdrop to the scale label
-		scaleShowLabelBackdrop : true,
+core_defaults._set(''global'', {
+	legend: {
+		display: true,
+		position: ''top'',
+		fullWidth: true,
+		reverse: false,
+		weight: 1000,
+
+		// a callback that will handle
+		onClick: function(e, legendItem) {
+			var index = legendItem.datasetIndex;
+			var ci = this.chart;
+			var meta = ci.getDatasetMeta(index);
+
+			// See controller.isDatasetVisible comment
+			meta.hidden = meta.hidden === null ? !ci.data.datasets[index].hidden : null;
+
+			// We hid a dataset ... rerender the chart
+			ci.update();
+		},
 
-		//String - The colour of the label backdrop
-		scaleBackdropColor : "rgba(255,255,255,0.75)",
+		onHover: null,
+		onLeave: null,
+
+		labels: {
+			boxWidth: 40,
+			padding: 10,
+			// Generates labels shown in the legend
+			// Valid properties to return:
+			// text : text to display
+			// fillStyle : fill of coloured box
+			// strokeStyle: stroke of coloured box
+			// hidden : if this legend item refers to a hidden item
+			// lineCap : cap style for line
+			// lineDash
+			// lineDashOffset :
+			// lineJoin :
+			// lineWidth :
+			generateLabels: function(chart) {
+				var data = chart.data;
+				return helpers$1.isArray(data.datasets) ? data.datasets.map(function(dataset, i) {
+					return {
+						text: dataset.label,
+						fillStyle: (!helpers$1.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
+						hidden: !chart.isDatasetVisible(i),
+						lineCap: dataset.borderCapStyle,
+						lineDash: dataset.borderDash,
+						lineDashOffset: dataset.borderDashOffset,
+						lineJoin: dataset.borderJoinStyle,
+						lineWidth: dataset.borderWidth,
+						strokeStyle: dataset.borderColor,
+						pointStyle: dataset.pointStyle,
+
+						// Below is extra data used for toggling the datasets
+						datasetIndex: i
+					};
+				}, this) : [];
+			}
+		}
+	},
+
+	legendCallback: function(chart) {
+		var text = [];
+		text.push(''<ul class="'' + chart.id + ''-legend">'');
+		for (var i = 0; i < chart.data.datasets.length; i++) {
+			text.push(''<li><span style="background-color:'' + chart.data.datasets[i].backgroundColor + ''"></span>'');
+			if (chart.data.datasets[i].label) {
+				text.push(chart.data.datasets[i].label);
+			}
+			text.push(''</li>'');
+		}
+		text.push(''</ul>'');
+		return text.join('''');
+	}
+});
 
-		// Boolean - Whether the scale should begin at zero
-		scaleBeginAtZero : true,
+/**
+ * Helper function to get the box width based on the usePointStyle option
+ * @param {object} labelopts - the label options on the legend
+ * @param {number} fontSize - the label font size
+ * @return {number} width of the color box area
+ */
+function getBoxWidth(labelOpts, fontSize) {
+	return labelOpts.usePointStyle && labelOpts.boxWidth > fontSize ?
+		fontSize :
+		labelOpts.boxWidth;
+}
 
-		//Number - The backdrop padding above & below the label in pixels
-		scaleBackdropPaddingY : 2,
+/**
+ * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
+ */
+var Legend = core_element.extend({
+
+	initialize: function(config) {
+		helpers$1.extend(this, config);
+
+		// Contains hit boxes for each dataset (in dataset order)
+		this.legendHitBoxes = [];
+
+		/**
+ 		 * @private
+ 		 */
+		this._hoveredItem = null;
+
+		// Are we in doughnut mode which has a different data type
+		this.doughnutMode = false;
+	},
+
+	// These methods are ordered by lifecycle. Utilities then follow.
+	// Any function defined here is inherited by all legend types.
+	// Any function can be extended by the legend type
+
+	beforeUpdate: noop$1,
+	update: function(maxWidth, maxHeight, margins) {
+		var me = this;
+
+		// Update Lifecycle - Probably don''t want to ever extend or overwrite this function ;)
+		me.beforeUpdate();
+
+		// Absorb the master measurements
+		me.maxWidth = maxWidth;
+		me.maxHeight = maxHeight;
+		me.margins = margins;
+
+		// Dimensions
+		me.beforeSetDimensions();
+		me.setDimensions();
+		me.afterSetDimensions();
+		// Labels
+		me.beforeBuildLabels();
+		me.buildLabels();
+		me.afterBuildLabels();
+
+		// Fit
+		me.beforeFit();
+		me.fit();
+		me.afterFit();
+		//
+		me.afterUpdate();
+
+		return me.minSize;
+	},
+	afterUpdate: noop$1,
+
+	//
+
+	beforeSetDimensions: noop$1,
+	setDimensions: function() {
+		var me = this;
+		// Set the unconstrained dimension before label rotation
+		if (me.isHorizontal()) {
+			// Reset position before calculating rotation
+			me.width = me.maxWidth;
+			me.left = 0;
+			me.right = me.width;
+		} else {
+			me.height = me.maxHeight;
+
+			// Reset position before calculating rotation
+			me.top = 0;
+			me.bottom = me.height;
+		}
 
-		//Number - The backdrop padding to the side of the label in pixels
-		scaleBackdropPaddingX : 2,
+		// Reset padding
+		me.paddingLeft = 0;
+		me.paddingTop = 0;
+		me.paddingRight = 0;
+		me.paddingBottom = 0;
 
-		//Boolean - Show line for each value in the scale
-		scaleShowLine : true,
+		// Reset minSize
+		me.minSize = {
+			width: 0,
+			height: 0
+		};
+	},
+	afterSetDimensions: noop$1,
 
-		//Boolean - Stroke a line around each segment in the chart
-		segmentShowStroke : true,
+	//
 
-		//String - The colour of the stroke on each segement.
-		segmentStrokeColor : "#fff",
+	beforeBuildLabels: noop$1,
+	buildLabels: function() {
+		var me = this;
+		var labelOpts = me.options.labels || {};
+		var legendItems = helpers$1.callback(labelOpts.generateLabels, [me.chart], me) || [];
 
-		//Number - The width of the stroke value in pixels
-		segmentStrokeWidth : 2,
+		if (labelOpts.filter) {
+			legendItems = legendItems.filter(function(item) {
+				return labelOpts.filter(item, me.chart.data);
+			});
+		}
 
-		//Number - Amount of animation steps
-		animationSteps : 100,
+		if (me.options.reverse) {
+			legendItems.reverse();
+		}
 
-		//String - Animation easing effect.
-		animationEasing : "easeOutBounce",
+		me.legendItems = legendItems;
+	},
+	afterBuildLabels: noop$1,
 
-		//Boolean - Whether to animate the rotation of the chart
-		animateRotate : true,
+	//
 
-		//Boolean - Whether to animate scaling the chart from the centre
-		animateScale : false,
+	beforeFit: noop$1,
+	fit: function() {
+		var me = this;
+		var opts = me.options;
+		var labelOpts = opts.labels;
+		var display = opts.display;
 
-		//String - A legend template
-		legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<segments.length; i++){%><li><span style=\"background-color:<%=segments[i].fillColor%>\"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>"
-	};
+		var ctx = me.ctx;
 
+		var labelFont = helpers$1.options._parseFont(labelOpts);
+		var fontSize = labelFont.size;
 
-	Chart.Type.extend({
-		//Passing in a name registers this chart in the Chart namespace
-		name: "PolarArea",
-		//Providing a defaults will also register the deafults in the chart namespace
-		defaults : defaultConfig,
-		//Initialize is fired when the chart is initialized - Data is passed in as a parameter
-		//Config is automatically merged by the core of Chart.js, and is available at this.options
-		initialize:  function(data){
-			this.segments = [];
-			//Declare segment class as a chart instance specific class, so it can share props for this instance
-			this.SegmentArc = Chart.Arc.extend({
-				showStroke : this.options.segmentShowStroke,
-				strokeWidth : this.options.segmentStrokeWidth,
-				strokeColor : this.options.segmentStrokeColor,
-				ctx : this.chart.ctx,
-				innerRadius : 0,
-				x : this.chart.width/2,
-				y : this.chart.height/2
-			});
-			this.scale = new Chart.RadialScale({
-				display: this.options.showScale,
-				fontStyle: this.options.scaleFontStyle,
-				fontSize: this.options.scaleFontSize,
-				fontFamily: this.options.scaleFontFamily,
-				fontColor: this.options.scaleFontColor,
-				showLabels: this.options.scaleShowLabels,
-				showLabelBackdrop: this.options.scaleShowLabelBackdrop,
-				backdropColor: this.options.scaleBackdropColor,
-				backdropPaddingY : this.options.scaleBackdropPaddingY,
-				backdropPaddingX: this.options.scaleBackdropPaddingX,
-				lineWidth: (this.options.scaleShowLine) ? this.options.scaleLineWidth : 0,
-				lineColor: this.options.scaleLineColor,
-				lineArc: true,
-				width: this.chart.width,
-				height: this.chart.height,
-				xCenter: this.chart.width/2,
-				yCenter: this.chart.height/2,
-				ctx : this.chart.ctx,
-				templateString: this.options.scaleLabel,
-				valuesCount: data.length
-			});
+		// Reset hit boxes
+		var hitboxes = me.legendHitBoxes = [];
 
-			this.updateScaleRange(data);
+		var minSize = me.minSize;
+		var isHorizontal = me.isHorizontal();
 
-			this.scale.update();
+		if (isHorizontal) {
+			minSize.width = me.maxWidth; // fill all the width
+			minSize.height = display ? 10 : 0;
+		} else {
+			minSize.width = display ? 10 : 0;
+			minSize.height = me.maxHeight; // fill all the height
+		}
 
-			helpers.each(data,function(segment,index){
-				this.addData(segment,index,true);
-			},this);
+		// Increase sizes here
+		if (display) {
+			ctx.font = labelFont.string;
 
-			//Set up tooltip events on the chart
-			if (this.options.showTooltips){
-				helpers.bindEvents(this, this.options.tooltipEvents, function(evt){
-					var activeSegments = (evt.type !== ''mouseout'') ? this.getSegmentsAtEvent(evt) : [];
-					helpers.each(this.segments,function(segment){
-						segment.restore(["fillColor"]);
-					});
-					helpers.each(activeSegments,function(activeSegment){
-						activeSegment.fillColor = activeSegment.highlightColor;
-					});
-					this.showTooltip(activeSegments);
-				});
-			}
+			if (isHorizontal) {
+				// Labels
 
-			this.render();
-		},
-		getSegmentsAtEvent : function(e){
-			var segmentsArray = [];
+				// Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
+				var lineWidths = me.lineWidths = [0];
+				var totalHeight = 0;
 
-			var location = helpers.getRelativePosition(e);
+				ctx.textAlign = ''left'';
+				ctx.textBaseline = ''top'';
 
-			helpers.each(this.segments,function(segment){
-				if (segment.inRange(location.x,location.y)) segmentsArray.push(segment);
-			},this);
-			return segmentsArray;
-		},
-		addData : function(segment, atIndex, silent){
-			var index = atIndex || this.segments.length;
-
-			this.segments.splice(index, 0, new this.SegmentArc({
-				fillColor: segment.color,
-				highlightColor: segment.highlight || segment.color,
-				label: segment.label,
-				value: segment.value,
-				outerRadius: (this.options.animateScale) ? 0 : this.scale.calculateCenterOffset(segment.value),
-				circumference: (this.options.animateRotate) ? 0 : this.scale.getCircumference(),
-				startAngle: Math.PI * 1.5
-			}));
-			if (!silent){
-				this.reflow();
-				this.update();
-			}
-		},
-		removeData: function(atIndex){
-			var indexToDelete = (helpers.isNumber(atIndex)) ? atIndex : this.segments.length-1;
-			this.segments.splice(indexToDelete, 1);
-			this.reflow();
-			this.update();
-		},
-		calculateTotal: function(data){
-			this.total = 0;
-			helpers.each(data,function(segment){
-				this.total += segment.value;
-			},this);
-			this.scale.valuesCount = this.segments.length;
-		},
-		updateScaleRange: function(datapoints){
-			var valuesArray = [];
-			helpers.each(datapoints,function(segment){
-				valuesArray.push(segment.value);
-			});
+				helpers$1.each(me.legendItems, function(legendItem, i) {
+					var boxWidth = getBoxWidth(labelOpts, fontSize);
+					var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
 
-			var scaleSizes = (this.options.scaleOverride) ?
-				{
-					steps: this.options.scaleSteps,
-					stepValue: this.options.scaleStepWidth,
-					min: this.options.scaleStartValue,
-					max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth)
-				} :
-				helpers.calculateScaleRange(
-					valuesArray,
-					helpers.min([this.chart.width, this.chart.height])/2,
-					this.options.scaleFontSize,
-					this.options.scaleBeginAtZero,
-					this.options.scaleIntegersOnly
-				);
+					if (i === 0 || lineWidths[lineWidths.length - 1] + width + labelOpts.padding > minSize.width) {
+						totalHeight += fontSize + labelOpts.padding;
+						lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = labelOpts.padding;
+					}
 
-			helpers.extend(
-				this.scale,
-				scaleSizes,
-				{
-					size: helpers.min([this.chart.width, this.chart.height]),
-					xCenter: this.chart.width/2,
-					yCenter: this.chart.height/2
-				}
-			);
+					// Store the hitbox width and height here. Final position will be updated in `draw`
+					hitboxes[i] = {
+						left: 0,
+						top: 0,
+						width: width,
+						height: fontSize
+					};
 
-		},
-		update : function(){
-			this.calculateTotal(this.segments);
+					lineWidths[lineWidths.length - 1] += width + labelOpts.padding;
+				});
 
-			helpers.each(this.segments,function(segment){
-				segment.save();
-			});
-			this.render();
-		},
-		reflow : function(){
-			helpers.extend(this.SegmentArc.prototype,{
-				x : this.chart.width/2,
-				y : this.chart.height/2
-			});
-			this.updateScaleRange(this.segments);
-			this.scale.update();
+				minSize.height += totalHeight;
 
-			helpers.extend(this.scale,{
-				xCenter: this.chart.width/2,
-				yCenter: this.chart.height/2
-			});
+			} else {
+				var vPadding = labelOpts.padding;
+				var columnWidths = me.columnWidths = [];
+				var totalWidth = labelOpts.padding;
+				var currentColWidth = 0;
+				var currentColHeight = 0;
+				var itemHeight = fontSize + vPadding;
+
+				helpers$1.each(me.legendItems, function(legendItem, i) {
+					var boxWidth = getBoxWidth(labelOpts, fontSize);
+					var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
+
+					// If too tall, go to new column
+					if (i > 0 && currentColHeight + itemHeight > minSize.height - vPadding) {
+						totalWidth += currentColWidth + labelOpts.padding;
+						columnWidths.push(currentColWidth); // previous column width
+
+						currentColWidth = 0;
+						currentColHeight = 0;
+					}
 
-			helpers.each(this.segments, function(segment){
-				segment.update({
-					outerRadius : this.scale.calculateCenterOffset(segment.value)
+					// Get max width
+					currentColWidth = Math.max(currentColWidth, itemWidth);
+					currentColHeight += itemHeight;
+
+					// Store the hitbox width and height here. Final position will be updated in `draw`
+					hitboxes[i] = {
+						left: 0,
+						top: 0,
+						width: itemWidth,
+						height: fontSize
+					};
 				});
-			}, this);
-
-		},
-		draw : function(ease){
-			var easingDecimal = ease || 1;
-			//Clear & draw the canvas
-			this.clear();
-			helpers.each(this.segments,function(segment, index){
-				segment.transition({
-					circumference : this.scale.getCircumference(),
-					outerRadius : this.scale.calculateCenterOffset(segment.value)
-				},easingDecimal);
-
-				segment.endAngle = segment.startAngle + segment.circumference;
-
-				// If we''ve removed the first segment we need to set the first one to
-				// start at the top.
-				if (index === 0){
-					segment.startAngle = Math.PI * 1.5;
-				}
 
-				//Check to see if it''s the last segment, if not get the next and update the start angle
-				if (index < this.segments.length - 1){
-					this.segments[index+1].startAngle = segment.endAngle;
-				}
-				segment.draw();
-			}, this);
-			this.scale.draw();
+				totalWidth += currentColWidth;
+				columnWidths.push(currentColWidth);
+				minSize.width += totalWidth;
+			}
 		}
-	});
 
-}).call(this);
-(function(){
-	"use strict";
+		me.width = minSize.width;
+		me.height = minSize.height;
+	},
+	afterFit: noop$1,
+
+	// Shared Methods
+	isHorizontal: function() {
+		return this.options.position === ''top'' || this.options.position === ''bottom'';
+	},
+
+	// Actually draw the legend on the canvas
+	draw: function() {
+		var me = this;
+		var opts = me.options;
+		var labelOpts = opts.labels;
+		var globalDefaults = core_defaults.global;
+		var defaultColor = globalDefaults.defaultColor;
+		var lineDefault = globalDefaults.elements.line;
+		var legendWidth = me.width;
+		var lineWidths = me.lineWidths;
+
+		if (opts.display) {
+			var ctx = me.ctx;
+			var fontColor = valueOrDefault$d(labelOpts.fontColor, globalDefaults.defaultFontColor);
+			var labelFont = helpers$1.options._parseFont(labelOpts);
+			var fontSize = labelFont.size;
+			var cursor;
+
+			// Canvas setup
+			ctx.textAlign = ''left'';
+			ctx.textBaseline = ''middle'';
+			ctx.lineWidth = 0.5;
+			ctx.strokeStyle = fontColor; // for strikethrough effect
+			ctx.fillStyle = fontColor; // render in correct colour
+			ctx.font = labelFont.string;
+
+			var boxWidth = getBoxWidth(labelOpts, fontSize);
+			var hitboxes = me.legendHitBoxes;
+
+			// current position
+			var drawLegendBox = function(x, y, legendItem) {
+				if (isNaN(boxWidth) || boxWidth <= 0) {
+					return;
+				}
 
-	var root = this,
-		Chart = root.Chart,
-		helpers = Chart.helpers;
+				// Set the ctx for the box
+				ctx.save();
 
+				var lineWidth = valueOrDefault$d(legendItem.lineWidth, lineDefault.borderWidth);
+				ctx.fillStyle = valueOrDefault$d(legendItem.fillStyle, defaultColor);
+				ctx.lineCap = valueOrDefault$d(legendItem.lineCap, lineDefault.borderCapStyle);
+				ctx.lineDashOffset = valueOrDefault$d(legendItem.lineDashOffset, lineDefault.borderDashOffset);
+				ctx.lineJoin = valueOrDefault$d(legendItem.lineJoin, lineDefault.borderJoinStyle);
+				ctx.lineWidth = lineWidth;
+				ctx.strokeStyle = valueOrDefault$d(legendItem.strokeStyle, defaultColor);
 
+				if (ctx.setLineDash) {
+					// IE 9 and 10 do not support line dash
+					ctx.setLineDash(valueOrDefault$d(legendItem.lineDash, lineDefault.borderDash));
+				}
 
-	Chart.Type.extend({
-		name: "Radar",
-		defaults:{
-			//Boolean - Whether to show lines for each scale point
-			scaleShowLine : true,
+				if (opts.labels && opts.labels.usePointStyle) {
+					// Recalculate x and y for drawPoint() because its expecting
+					// x and y to be center of figure (instead of top left)
+					var radius = boxWidth * Math.SQRT2 / 2;
+					var centerX = x + boxWidth / 2;
+					var centerY = y + fontSize / 2;
 
-			//Boolean - Whether we show the angle lines out of the radar
-			angleShowLineOut : true,
+					// Draw pointStyle as legend symbol
+					helpers$1.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
+				} else {
+					// Draw box as legend symbol
+					if (lineWidth !== 0) {
+						ctx.strokeRect(x, y, boxWidth, fontSize);
+					}
+					ctx.fillRect(x, y, boxWidth, fontSize);
+				}
 
-			//Boolean - Whether to show labels on the scale
-			scaleShowLabels : false,
+				ctx.restore();
+			};
+			var fillText = function(x, y, legendItem, textWidth) {
+				var halfFontSize = fontSize / 2;
+				var xLeft = boxWidth + halfFontSize + x;
+				var yMiddle = y + halfFontSize;
 
-			// Boolean - Whether the scale should begin at zero
-			scaleBeginAtZero : true,
+				ctx.fillText(legendItem.text, xLeft, yMiddle);
 
-			//String - Colour of the angle line
-			angleLineColor : "rgba(0,0,0,.1)",
+				if (legendItem.hidden) {
+					// Strikethrough the text if hidden
+					ctx.beginPath();
+					ctx.lineWidth = 2;
+					ctx.moveTo(xLeft, yMiddle);
+					ctx.lineTo(xLeft + textWidth, yMiddle);
+					ctx.stroke();
+				}
+			};
 
-			//Number - Pixel width of the angle line
-			angleLineWidth : 1,
+			// Horizontal
+			var isHorizontal = me.isHorizontal();
+			if (isHorizontal) {
+				cursor = {
+					x: me.left + ((legendWidth - lineWidths[0]) / 2) + labelOpts.padding,
+					y: me.top + labelOpts.padding,
+					line: 0
+				};
+			} else {
+				cursor = {
+					x: me.left + labelOpts.padding,
+					y: me.top + labelOpts.padding,
+					line: 0
+				};
+			}
 
-			//String - Point label font declaration
-			pointLabelFontFamily : "''Arial''",
+			var itemHeight = fontSize + labelOpts.padding;
+			helpers$1.each(me.legendItems, function(legendItem, i) {
+				var textWidth = ctx.measureText(legendItem.text).width;
+				var width = boxWidth + (fontSize / 2) + textWidth;
+				var x = cursor.x;
+				var y = cursor.y;
+
+				// Use (me.left + me.minSize.width) and (me.top + me.minSize.height)
+				// instead of me.right and me.bottom because me.width and me.height
+				// may have been changed since me.minSize was calculated
+				if (isHorizontal) {
+					if (i > 0 && x + width + labelOpts.padding > me.left + me.minSize.width) {
+						y = cursor.y += itemHeight;
+						cursor.line++;
+						x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2) + labelOpts.padding;
+					}
+				} else if (i > 0 && y + itemHeight > me.top + me.minSize.height) {
+					x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
+					y = cursor.y = me.top + labelOpts.padding;
+					cursor.line++;
+				}
 
-			//String - Point label font weight
-			pointLabelFontStyle : "normal",
+				drawLegendBox(x, y, legendItem);
 
-			//Number - Point label font size in pixels
-			pointLabelFontSize : 10,
+				hitboxes[i].left = x;
+				hitboxes[i].top = y;
 
-			//String - Point label font colour
-			pointLabelFontColor : "#666",
+				// Fill the actual label
+				fillText(x, y, legendItem, textWidth);
 
-			//Boolean - Whether to show a dot for each point
-			pointDot : true,
+				if (isHorizontal) {
+					cursor.x += width + labelOpts.padding;
+				} else {
+					cursor.y += itemHeight;
+				}
 
-			//Number - Radius of each point dot in pixels
-			pointDotRadius : 3,
+			});
+		}
+	},
+
+	/**
+	 * @private
+	 */
+	_getLegendItemAt: function(x, y) {
+		var me = this;
+		var i, hitBox, lh;
+
+		if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
+			// See if we are touching one of the dataset boxes
+			lh = me.legendHitBoxes;
+			for (i = 0; i < lh.length; ++i) {
+				hitBox = lh[i];
+
+				if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
+					// Touching an element
+					return me.legendItems[i];
+				}
+			}
+		}
 
-			//Number - Pixel width of point dot stroke
-			pointDotStrokeWidth : 1,
+		return null;
+	},
+
+	/**
+	 * Handle an event
+	 * @private
+	 * @param {IEvent} event - The event to handle
+	 */
+	handleEvent: function(e) {
+		var me = this;
+		var opts = me.options;
+		var type = e.type === ''mouseup'' ? ''click'' : e.type;
+		var hoveredItem;
+
+		if (type === ''mousemove'') {
+			if (!opts.onHover && !opts.onLeave) {
+				return;
+			}
+		} else if (type === ''click'') {
+			if (!opts.onClick) {
+				return;
+			}
+		} else {
+			return;
+		}
 
-			//Number - amount extra to add to the radius to cater for hit detection outside the drawn point
-			pointHitDetectionRadius : 20,
+		// Chart event already has relative position in it
+		hoveredItem = me._getLegendItemAt(e.x, e.y);
 
-			//Boolean - Whether to show a stroke for datasets
-			datasetStroke : true,
+		if (type === ''click'') {
+			if (hoveredItem && opts.onClick) {
+				// use e.native for backwards compatibility
+				opts.onClick.call(me, e.native, hoveredItem);
+			}
+		} else {
+			if (opts.onLeave && hoveredItem !== me._hoveredItem) {
+				if (me._hoveredItem) {
+					opts.onLeave.call(me, e.native, me._hoveredItem);
+				}
+				me._hoveredItem = hoveredItem;
+			}
 
-			//Number - Pixel width of dataset stroke
-			datasetStrokeWidth : 2,
+			if (opts.onHover && hoveredItem) {
+				// use e.native for backwards compatibility
+				opts.onHover.call(me, e.native, hoveredItem);
+			}
+		}
+	}
+});
 
-			//Boolean - Whether to fill the dataset with a colour
-			datasetFill : true,
+function createNewLegendAndAttach(chart, legendOpts) {
+	var legend = new Legend({
+		ctx: chart.ctx,
+		options: legendOpts,
+		chart: chart
+	});
 
-			//String - A legend template
-			legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].strokeColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>"
+	core_layouts.configure(chart, legend, legendOpts);
+	core_layouts.addBox(chart, legend);
+	chart.legend = legend;
+}
 
-		},
+var plugin_legend = {
+	id: ''legend'',
 
-		initialize: function(data){
-			this.PointClass = Chart.Point.extend({
-				strokeWidth : this.options.pointDotStrokeWidth,
-				radius : this.options.pointDotRadius,
-				display: this.options.pointDot,
-				hitDetectionRadius : this.options.pointHitDetectionRadius,
-				ctx : this.chart.ctx
-			});
+	/**
+	 * Backward compatibility: since 2.1.5, the legend is registered as a plugin, making
+	 * Chart.Legend obsolete. To avoid a breaking change, we export the Legend as part of
+	 * the plugin, which one will be re-exposed in the chart.js file.
+	 * https://github.com/chartjs/Chart.js/pull/2640
+	 * @private
+	 */
+	_element: Legend,
 
-			this.datasets = [];
+	beforeInit: function(chart) {
+		var legendOpts = chart.options.legend;
 
-			this.buildScale(data);
+		if (legendOpts) {
+			createNewLegendAndAttach(chart, legendOpts);
+		}
+	},
 
-			//Set up tooltip events on the chart
-			if (this.options.showTooltips){
-				helpers.bindEvents(this, this.options.tooltipEvents, function(evt){
-					var activePointsCollection = (evt.type !== ''mouseout'') ? this.getPointsAtEvent(evt) : [];
+	beforeUpdate: function(chart) {
+		var legendOpts = chart.options.legend;
+		var legend = chart.legend;
 
-					this.eachPoints(function(point){
-						point.restore([''fillColor'', ''strokeColor'']);
-					});
-					helpers.each(activePointsCollection, function(activePoint){
-						activePoint.fillColor = activePoint.highlightFill;
-						activePoint.strokeColor = activePoint.highlightStroke;
-					});
+		if (legendOpts) {
+			helpers$1.mergeIf(legendOpts, core_defaults.global.legend);
 
-					this.showTooltip(activePointsCollection);
-				});
+			if (legend) {
+				core_layouts.configure(chart, legend, legendOpts);
+				legend.options = legendOpts;
+			} else {
+				createNewLegendAndAttach(chart, legendOpts);
 			}
+		} else if (legend) {
+			core_layouts.removeBox(chart, legend);
+			delete chart.legend;
+		}
+	},
 
-			//Iterate through each of the datasets, and build this into a property of the chart
-			helpers.each(data.datasets,function(dataset){
+	afterEvent: function(chart, e) {
+		var legend = chart.legend;
+		if (legend) {
+			legend.handleEvent(e);
+		}
+	}
+};
+
+var noop$2 = helpers$1.noop;
+
+core_defaults._set(''global'', {
+	title: {
+		display: false,
+		fontStyle: ''bold'',
+		fullWidth: true,
+		padding: 10,
+		position: ''top'',
+		text: '''',
+		weight: 2000         // by default greater than legend (1000) to be above
+	}
+});
 
-				var datasetObject = {
-					label: dataset.label || null,
-					fillColor : dataset.fillColor,
-					strokeColor : dataset.strokeColor,
-					pointColor : dataset.pointColor,
-					pointStrokeColor : dataset.pointStrokeColor,
-					points : []
-				};
+/**
+ * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
+ */
+var Title = core_element.extend({
+	initialize: function(config) {
+		var me = this;
+		helpers$1.extend(me, config);
+
+		// Contains hit boxes for each dataset (in dataset order)
+		me.legendHitBoxes = [];
+	},
+
+	// These methods are ordered by lifecycle. Utilities then follow.
+
+	beforeUpdate: noop$2,
+	update: function(maxWidth, maxHeight, margins) {
+		var me = this;
+
+		// Update Lifecycle - Probably don''t want to ever extend or overwrite this function ;)
+		me.beforeUpdate();
+
+		// Absorb the master measurements
+		me.maxWidth = maxWidth;
+		me.maxHeight = maxHeight;
+		me.margins = margins;
+
+		// Dimensions
+		me.beforeSetDimensions();
+		me.setDimensions();
+		me.afterSetDimensions();
+		// Labels
+		me.beforeBuildLabels();
+		me.buildLabels();
+		me.afterBuildLabels();
+
+		// Fit
+		me.beforeFit();
+		me.fit();
+		me.afterFit();
+		//
+		me.afterUpdate();
+
+		return me.minSize;
+
+	},
+	afterUpdate: noop$2,
+
+	//
+
+	beforeSetDimensions: noop$2,
+	setDimensions: function() {
+		var me = this;
+		// Set the unconstrained dimension before label rotation
+		if (me.isHorizontal()) {
+			// Reset position before calculating rotation
+			me.width = me.maxWidth;
+			me.left = 0;
+			me.right = me.width;
+		} else {
+			me.height = me.maxHeight;
+
+			// Reset position before calculating rotation
+			me.top = 0;
+			me.bottom = me.height;
+		}
 
-				this.datasets.push(datasetObject);
+		// Reset padding
+		me.paddingLeft = 0;
+		me.paddingTop = 0;
+		me.paddingRight = 0;
+		me.paddingBottom = 0;
 
-				helpers.each(dataset.data,function(dataPoint,index){
-					//Add a new point for each piece of data, passing any required data to draw.
-					var pointPosition;
-					if (!this.scale.animation){
-						pointPosition = this.scale.getPointPosition(index, this.scale.calculateCenterOffset(dataPoint));
-					}
-					datasetObject.points.push(new this.PointClass({
-						value : dataPoint,
-						label : data.labels[index],
-						datasetLabel: dataset.label,
-						x: (this.options.animation) ? this.scale.xCenter : pointPosition.x,
-						y: (this.options.animation) ? this.scale.yCenter : pointPosition.y,
-						strokeColor : dataset.pointStrokeColor,
-						fillColor : dataset.pointColor,
-						highlightFill : dataset.pointHighlightFill || dataset.pointColor,
-						highlightStroke : dataset.pointHighlightStroke || dataset.pointStrokeColor
-					}));
-				},this);
+		// Reset minSize
+		me.minSize = {
+			width: 0,
+			height: 0
+		};
+	},
+	afterSetDimensions: noop$2,
+
+	//
+
+	beforeBuildLabels: noop$2,
+	buildLabels: noop$2,
+	afterBuildLabels: noop$2,
+
+	//
+
+	beforeFit: noop$2,
+	fit: function() {
+		var me = this;
+		var opts = me.options;
+		var display = opts.display;
+		var minSize = me.minSize;
+		var lineCount = helpers$1.isArray(opts.text) ? opts.text.length : 1;
+		var fontOpts = helpers$1.options._parseFont(opts);
+		var textSize = display ? (lineCount * fontOpts.lineHeight) + (opts.padding * 2) : 0;
+
+		if (me.isHorizontal()) {
+			minSize.width = me.maxWidth; // fill all the width
+			minSize.height = textSize;
+		} else {
+			minSize.width = textSize;
+			minSize.height = me.maxHeight; // fill all the height
+		}
 
-			},this);
+		me.width = minSize.width;
+		me.height = minSize.height;
+
+	},
+	afterFit: noop$2,
+
+	// Shared Methods
+	isHorizontal: function() {
+		var pos = this.options.position;
+		return pos === ''top'' || pos === ''bottom'';
+	},
+
+	// Actually draw the title block on the canvas
+	draw: function() {
+		var me = this;
+		var ctx = me.ctx;
+		var opts = me.options;
+
+		if (opts.display) {
+			var fontOpts = helpers$1.options._parseFont(opts);
+			var lineHeight = fontOpts.lineHeight;
+			var offset = lineHeight / 2 + opts.padding;
+			var rotation = 0;
+			var top = me.top;
+			var left = me.left;
+			var bottom = me.bottom;
+			var right = me.right;
+			var maxWidth, titleX, titleY;
+
+			ctx.fillStyle = helpers$1.valueOrDefault(opts.fontColor, core_defaults.global.defaultFontColor); // render in correct colour
+			ctx.font = fontOpts.string;
+
+			// Horizontal
+			if (me.isHorizontal()) {
+				titleX = left + ((right - left) / 2); // midpoint of the width
+				titleY = top + offset;
+				maxWidth = right - left;
+			} else {
+				titleX = opts.position === ''left'' ? left + offset : right - offset;
+				titleY = top + ((bottom - top) / 2);
+				maxWidth = bottom - top;
+				rotation = Math.PI * (opts.position === ''left'' ? -0.5 : 0.5);
+			}
 
-			this.render();
-		},
-		eachPoints : function(callback){
-			helpers.each(this.datasets,function(dataset){
-				helpers.each(dataset.points,callback,this);
-			},this);
-		},
+			ctx.save();
+			ctx.translate(titleX, titleY);
+			ctx.rotate(rotation);
+			ctx.textAlign = ''center'';
+			ctx.textBaseline = ''middle'';
+
+			var text = opts.text;
+			if (helpers$1.isArray(text)) {
+				var y = 0;
+				for (var i = 0; i < text.length; ++i) {
+					ctx.fillText(text[i], 0, y, maxWidth);
+					y += lineHeight;
+				}
+			} else {
+				ctx.fillText(text, 0, 0, maxWidth);
+			}
 
-		getPointsAtEvent : function(evt){
-			var mousePosition = helpers.getRelativePosition(evt),
-				fromCenter = helpers.getAngleFromPoint({
-					x: this.scale.xCenter,
-					y: this.scale.yCenter
-				}, mousePosition);
+			ctx.restore();
+		}
+	}
+});
 
-			var anglePerIndex = (Math.PI * 2) /this.scale.valuesCount,
-				pointIndex = Math.round((fromCenter.angle - Math.PI * 1.5) / anglePerIndex),
-				activePointsCollection = [];
+function createNewTitleBlockAndAttach(chart, titleOpts) {
+	var title = new Title({
+		ctx: chart.ctx,
+		options: titleOpts,
+		chart: chart
+	});
 
-			// If we''re at the top, make the pointIndex 0 to get the first of the array.
-			if (pointIndex >= this.scale.valuesCount || pointIndex < 0){
-				pointIndex = 0;
-			}
+	core_layouts.configure(chart, title, titleOpts);
+	core_layouts.addBox(chart, title);
+	chart.titleBlock = title;
+}
 
-			if (fromCenter.distance <= this.scale.drawingArea){
-				helpers.each(this.datasets, function(dataset){
-					activePointsCollection.push(dataset.points[pointIndex]);
-				});
-			}
+var plugin_title = {
+	id: ''title'',
 
-			return activePointsCollection;
-		},
+	/**
+	 * Backward compatibility: since 2.1.5, the title is registered as a plugin, making
+	 * Chart.Title obsolete. To avoid a breaking change, we export the Title as part of
+	 * the plugin, which one will be re-exposed in the chart.js file.
+	 * https://github.com/chartjs/Chart.js/pull/2640
+	 * @private
+	 */
+	_element: Title,
 
-		buildScale : function(data){
-			this.scale = new Chart.RadialScale({
-				display: this.options.showScale,
-				fontStyle: this.options.scaleFontStyle,
-				fontSize: this.options.scaleFontSize,
-				fontFamily: this.options.scaleFontFamily,
-				fontColor: this.options.scaleFontColor,
-				showLabels: this.options.scaleShowLabels,
-				showLabelBackdrop: this.options.scaleShowLabelBackdrop,
-				backdropColor: this.options.scaleBackdropColor,
-				backdropPaddingY : this.options.scaleBackdropPaddingY,
-				backdropPaddingX: this.options.scaleBackdropPaddingX,
-				lineWidth: (this.options.scaleShowLine) ? this.options.scaleLineWidth : 0,
-				lineColor: this.options.scaleLineColor,
-				angleLineColor : this.options.angleLineColor,
-				angleLineWidth : (this.options.angleShowLineOut) ? this.options.angleLineWidth : 0,
-				// Point labels at the edge of each line
-				pointLabelFontColor : this.options.pointLabelFontColor,
-				pointLabelFontSize : this.options.pointLabelFontSize,
-				pointLabelFontFamily : this.options.pointLabelFontFamily,
-				pointLabelFontStyle : this.options.pointLabelFontStyle,
-				height : this.chart.height,
-				width: this.chart.width,
-				xCenter: this.chart.width/2,
-				yCenter: this.chart.height/2,
-				ctx : this.chart.ctx,
-				templateString: this.options.scaleLabel,
-				labels: data.labels,
-				valuesCount: data.datasets[0].data.length
-			});
+	beforeInit: function(chart) {
+		var titleOpts = chart.options.title;
 
-			this.scale.setScaleSize();
-			this.updateScaleRange(data.datasets);
-			this.scale.buildYLabels();
-		},
-		updateScaleRange: function(datasets){
-			var valuesArray = (function(){
-				var totalDataArray = [];
-				helpers.each(datasets,function(dataset){
-					if (dataset.data){
-						totalDataArray = totalDataArray.concat(dataset.data);
-					}
-					else {
-						helpers.each(dataset.points, function(point){
-							totalDataArray.push(point.value);
-						});
-					}
-				});
-				return totalDataArray;
-			})();
-
-
-			var scaleSizes = (this.options.scaleOverride) ?
-				{
-					steps: this.options.scaleSteps,
-					stepValue: this.options.scaleStepWidth,
-					min: this.options.scaleStartValue,
-					max: this.options.scaleStartValue + (this.options.scaleSteps * this.options.scaleStepWidth)
-				} :
-				helpers.calculateScaleRange(
-					valuesArray,
-					helpers.min([this.chart.width, this.chart.height])/2,
-					this.options.scaleFontSize,
-					this.options.scaleBeginAtZero,
-					this.options.scaleIntegersOnly
-				);
+		if (titleOpts) {
+			createNewTitleBlockAndAttach(chart, titleOpts);
+		}
+	},
 
-			helpers.extend(
-				this.scale,
-				scaleSizes
-			);
+	beforeUpdate: function(chart) {
+		var titleOpts = chart.options.title;
+		var titleBlock = chart.titleBlock;
 
-		},
-		addData : function(valuesArray,label){
-			//Map the values array for each of the datasets
-			this.scale.valuesCount++;
-			helpers.each(valuesArray,function(value,datasetIndex){
-				var pointPosition = this.scale.getPointPosition(this.scale.valuesCount, this.scale.calculateCenterOffset(value));
-				this.datasets[datasetIndex].points.push(new this.PointClass({
-					value : value,
-					label : label,
-					x: pointPosition.x,
-					y: pointPosition.y,
-					strokeColor : this.datasets[datasetIndex].pointStrokeColor,
-					fillColor : this.datasets[datasetIndex].pointColor
-				}));
-			},this);
+		if (titleOpts) {
+			helpers$1.mergeIf(titleOpts, core_defaults.global.title);
 
-			this.scale.labels.push(label);
+			if (titleBlock) {
+				core_layouts.configure(chart, titleBlock, titleOpts);
+				titleBlock.options = titleOpts;
+			} else {
+				createNewTitleBlockAndAttach(chart, titleOpts);
+			}
+		} else if (titleBlock) {
+			core_layouts.removeBox(chart, titleBlock);
+			delete chart.titleBlock;
+		}
+	}
+};
+
+var plugins = {};
+var filler = plugin_filler;
+var legend = plugin_legend;
+var title = plugin_title;
+plugins.filler = filler;
+plugins.legend = legend;
+plugins.title = title;
+
+/**
+ * @namespace Chart
+ */
 
-			this.reflow();
 
-			this.update();
-		},
-		removeData : function(){
-			this.scale.valuesCount--;
-			this.scale.labels.shift();
-			helpers.each(this.datasets,function(dataset){
-				dataset.points.shift();
-			},this);
-			this.reflow();
-			this.update();
-		},
-		update : function(){
-			this.eachPoints(function(point){
-				point.save();
-			});
-			this.reflow();
-			this.render();
-		},
-		reflow: function(){
-			helpers.extend(this.scale, {
-				width : this.chart.width,
-				height: this.chart.height,
-				size : helpers.min([this.chart.width, this.chart.height]),
-				xCenter: this.chart.width/2,
-				yCenter: this.chart.height/2
-			});
-			this.updateScaleRange(this.datasets);
-			this.scale.setScaleSize();
-			this.scale.buildYLabels();
-		},
-		draw : function(ease){
-			var easeDecimal = ease || 1,
-				ctx = this.chart.ctx;
-			this.clear();
-			this.scale.draw();
+core_controller.helpers = helpers$1;
 
-			helpers.each(this.datasets,function(dataset){
+// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
+core_helpers(core_controller);
 
-				//Transition each point first so that the line and point drawing isn''t out of sync
-				helpers.each(dataset.points,function(point,index){
-					if (point.hasValue()){
-						point.transition(this.scale.getPointPosition(index, this.scale.calculateCenterOffset(point.value)), easeDecimal);
-					}
-				},this);
+core_controller._adapters = core_adapters;
+core_controller.Animation = core_animation;
+core_controller.animationService = core_animations;
+core_controller.controllers = controllers;
+core_controller.DatasetController = core_datasetController;
+core_controller.defaults = core_defaults;
+core_controller.Element = core_element;
+core_controller.elements = elements;
+core_controller.Interaction = core_interaction;
+core_controller.layouts = core_layouts;
+core_controller.platform = platform;
+core_controller.plugins = core_plugins;
+core_controller.Scale = core_scale;
+core_controller.scaleService = core_scaleService;
+core_controller.Ticks = core_ticks;
+core_controller.Tooltip = core_tooltip;
 
+// Register built-in scales
 
+core_controller.helpers.each(scales, function(scale, type) {
+	core_controller.scaleService.registerScaleType(type, scale, scale._defaults);
+});
 
-				//Draw the line between all the points
-				ctx.lineWidth = this.options.datasetStrokeWidth;
-				ctx.strokeStyle = dataset.strokeColor;
-				ctx.beginPath();
-				helpers.each(dataset.points,function(point,index){
-					if (index === 0){
-						ctx.moveTo(point.x,point.y);
-					}
-					else{
-						ctx.lineTo(point.x,point.y);
-					}
-				},this);
-				ctx.closePath();
-				ctx.stroke();
+// Load to register built-in adapters (as side effects)
 
-				ctx.fillStyle = dataset.fillColor;
-				ctx.fill();
 
-				//Now draw the points over the line
-				//A little inefficient double looping, but better than the line
-				//lagging behind the point positions
-				helpers.each(dataset.points,function(point){
-					if (point.hasValue()){
-						point.draw();
-					}
-				});
+// Loading built-in plugins
 
-			},this);
+for (var k in plugins) {
+	if (plugins.hasOwnProperty(k)) {
+		core_controller.plugins.register(plugins[k]);
+	}
+}
 
-		}
+core_controller.platform.initialize();
 
-	});
+var src = core_controller;
+if (typeof window !== ''undefined'') {
+	window.Chart = core_controller;
+}
 
+// DEPRECATIONS
 
+/**
+ * Provided for backward compatibility, not available anymore
+ * @namespace Chart.Legend
+ * @deprecated since version 2.1.5
+ * @todo remove at version 3
+ * @private
+ */
+core_controller.Legend = plugins.legend._element;
+
+/**
+ * Provided for backward compatibility, not available anymore
+ * @namespace Chart.Title
+ * @deprecated since version 2.1.5
+ * @todo remove at version 3
+ * @private
+ */
+core_controller.Title = plugins.title._element;
+
+/**
+ * Provided for backward compatibility, use Chart.plugins instead
+ * @namespace Chart.pluginService
+ * @deprecated since version 2.1.5
+ * @todo remove at version 3
+ * @private
+ */
+core_controller.pluginService = core_controller.plugins;
+
+/**
+ * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
+ * effect, instead simply create/register plugins via plain JavaScript objects.
+ * @interface Chart.PluginBase
+ * @deprecated since version 2.5.0
+ * @todo remove at version 3
+ * @private
+ */
+core_controller.PluginBase = core_controller.Element.extend({});
+
+/**
+ * Provided for backward compatibility, use Chart.helpers.canvas instead.
+ * @namespace Chart.canvasHelpers
+ * @deprecated since version 2.6.0
+ * @todo remove at version 3
+ * @private
+ */
+core_controller.canvasHelpers = core_controller.helpers.canvas;
+
+/**
+ * Provided for backward compatibility, use Chart.layouts instead.
+ * @namespace Chart.layoutService
+ * @deprecated since version 2.7.3
+ * @todo remove at version 3
+ * @private
+ */
+core_controller.layoutService = core_controller.layouts;
+
+/**
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart.LinearScaleBase
+ * @deprecated since version 2.8
+ * @todo remove at version 3
+ * @private
+ */
+core_controller.LinearScaleBase = scale_linearbase;
 
+/**
+ * Provided for backward compatibility, instead we should create a new Chart
+ * by setting the type in the config (`new Chart(id, {type: ''{chart-type}''}`).
+ * @deprecated since version 2.8.0
+ * @todo remove at version 3
+ */
+core_controller.helpers.each(
+	[
+		''Bar'',
+		''Bubble'',
+		''Doughnut'',
+		''Line'',
+		''PolarArea'',
+		''Radar'',
+		''Scatter''
+	],
+	function(klass) {
+		core_controller[klass] = function(ctx, cfg) {
+			return new core_controller(ctx, core_controller.helpers.merge(cfg || {}, {
+				type: klass.charAt(0).toLowerCase() + klass.slice(1)
+			}));
+		};
+	}
+);
 
+return src;
 
-}).call(this);'
+})));
+'
 ]
 
 { #category : #accessing }
@@ -4120,17 +16282,7 @@ ChartJsLibrary >> ChartJsCss [
 
 { #category : #uploaded }
 ChartJsLibrary >> ChartminJs [
-	^ '/*!
- * Chart.js
- * http://chartjs.org/
- * Version: 1.0.1
- *
- * Copyright 2015 Nick Downie
- * Released under the MIT license
- * https://github.com/nnnick/Chart.js/blob/master/LICENSE.md
- */
-(function(){"use strict";var t=this,i=t.Chart,e=function(t){this.canvas=t.canvas,this.ctx=t;var i=function(t,i){return t["offset"+i]?t["offset"+i]:document.defaultView.getComputedStyle(t).getPropertyValue(i)},e=this.width=i(t.canvas,"Width"),n=this.height=i(t.canvas,"Height");t.canvas.width=e,t.canvas.height=n;var e=this.width=t.canvas.width,n=this.height=t.canvas.height;return this.aspectRatio=this.width/this.height,s.retinaScale(this),this};e.defaults={global:{animation:!0,animationSteps:60,animationEasing:"easeOutQuart",showScale:!0,scaleOverride:!1,scaleSteps:null,scaleStepWidth:null,scaleStartValue:null,scaleLineColor:"rgba(0,0,0,.1)",scaleLineWidth:1,scaleShowLabels:!0,scaleLabel:"<%=value%>",scaleIntegersOnly:!0,scaleBeginAtZero:!1,scaleFontFamily:"''Helvetica Neue'', ''Helvetica'', ''Arial'', sans-serif",scaleFontSize:12,scaleFontStyle:"normal",scaleFontColor:"#666",responsive:!1,maintainAspectRatio:!0,showTooltips:!0,customTooltips:!1,tooltipEvents:["mousemove","touchstart","touchmove","mouseout"],tooltipFillColor:"rgba(0,0,0,0.8)",tooltipFontFamily:"''Helvetica Neue'', ''Helvetica'', ''Arial'', sans-serif",tooltipFontSize:14,tooltipFontStyle:"normal",tooltipFontColor:"#fff",tooltipTitleFontFamily:"''Helvetica Neue'', ''Helvetica'', ''Arial'', sans-serif",tooltipTitleFontSize:14,tooltipTitleFontStyle:"bold",tooltipTitleFontColor:"#fff",tooltipYPadding:6,tooltipXPadding:6,tooltipCaretSize:8,tooltipCornerRadius:6,tooltipXOffset:10,tooltipTemplate:"<%if (label){%><%=label%>: <%}%><%= value %>",multiTooltipTemplate:"<%= value %>",multiTooltipKeyBackground:"#fff",onAnimationProgress:function(){},onAnimationComplete:function(){}}},e.types={};var s=e.helpers={},n=s.each=function(t,i,e){var s=Array.prototype.slice.call(arguments,3);if(t)if(t.length===+t.length){var 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t=this.ctx,i=this.width/2,e=this.x-i,s=this.x+i,n=this.base-(this.base-this.y),o=this.strokeWidth/2;this.showStroke&&(e+=o,s-=o,n+=o),t.beginPath(),t.fillStyle=this.fillColor,t.strokeStyle=this.strokeColor,t.lineWidth=this.strokeWidth,t.moveTo(e,this.base),t.lineTo(e,n),t.lineTo(s,n),t.lineTo(s,this.base),t.fill(),this.showStroke&&t.stroke()},height:function(){return this.base-this.y},inRange:function(t,i){return t>=this.x-this.width/2&&t<=this.x+this.width/2&&i>=this.y&&i<=this.base}}),e.Tooltip=e.Element.extend({draw:function(){var t=this.chart.ctx;t.font=W(this.fontSize,this.fontStyle,this.fontFamily),this.xAlign="center",this.yAlign="above";var i=this.caretPadding=2,e=t.measureText(this.text).width+2*this.xPadding,s=this.fontSize+2*this.yPadding,n=s+this.caretHeight+i;this.x+e/2>this.chart.width?this.xAlign="left":this.x-e/2<0&&(this.xAlign="right"),this.y-n<0&&(this.yAlign="below");var o=this.x-e/2,a=this.y-n;if(t.fillStyle=this.fillColor,this.custom)this.custom(this);else{switch(this.yAlign){case"above":t.beginPath(),t.moveTo(this.x,this.y-i),t.lineTo(this.x+this.caretHeight,this.y-(i+this.caretHeight)),t.lineTo(this.x-this.caretHeight,this.y-(i+this.caretHeight)),t.closePath(),t.fill();break;case"below":a=this.y+i+this.caretHeight,t.beginPath(),t.moveTo(this.x,this.y+i),t.lineTo(this.x+this.caretHeight,this.y+i+this.caretHeight),t.lineTo(this.x-this.caretHeight,this.y+i+this.caretHeight),t.closePath(),t.fill()}switch(this.xAlign){case"left":o=this.x-e+(this.cornerRadius+this.caretHeight);break;case"right":o=this.x-(this.cornerRadius+this.caretHeight)}B(t,o,a,e,s,this.cornerRadius),t.fill(),t.fillStyle=this.textColor,t.textAlign="center",t.textBaseline="middle",t.fillText(this.text,o+e/2,a+s/2)}}}),e.MultiTooltip=e.Element.extend({initialize:function(){this.font=W(this.fontSize,this.fontStyle,this.fontFamily),this.titleFont=W(this.titleFontSize,this.titleFontStyle,this.titleFontFamily),this.height=this.labels.length*this.fontSize+(this.labels.length-1)*(this.fontSize/2)+2*this.yPadding+1.5*this.titleFontSize,this.ctx.font=this.titleFont;var t=this.ctx.measureText(this.title).width,i=z(this.ctx,this.font,this.labels)+this.fontSize+3,e=g([i,t]);this.width=e+2*this.xPadding;var s=this.height/2;this.y-s<0?this.y=s:this.y+s>this.chart.height&&(this.y=this.chart.height-s),this.x>this.chart.width/2?this.x-=this.xOffset+this.width:this.x+=this.xOffset},getLineHeight:function(t){var i=this.y-this.height/2+this.yPadding,e=t-1;return 0===t?i+this.titleFontSize/2:i+(1.5*this.fontSize*e+this.fontSize/2)+1.5*this.titleFontSize},draw:function(){if(this.custom)this.custom(this);else{B(this.ctx,this.x,this.y-this.height/2,this.width,this.height,this.cornerRadius);var t=this.ctx;t.fillStyle=this.fillColor,t.fill(),t.closePath(),t.textAlign="left",t.textBaseline="middle",t.fillStyle=this.titleTextColor,t.font=this.titleFont,t.fillText(this.title,this.x+this.xPadding,this.getLineHeight(0)),t.font=this.font,s.each(this.labels,function(i,e){t.fillStyle=this.textColor,t.fillText(i,this.x+this.xPadding+this.fontSize+3,this.getLineHeight(e+1)),t.fillStyle=this.legendColorBackground,t.fillRect(this.x+this.xPadding,this.getLineHeight(e+1)-this.fontSize/2,this.fontSize,this.fontSize),t.fillStyle=this.legendColors[e].fill,t.fillRect(this.x+this.xPadding,this.getLineHeight(e+1)-this.fontSize/2,this.fontSize,this.fontSize)},this)}}}),e.Scale=e.Element.extend({initialize:function(){this.fit()},buildYLabels:function(){this.yLabels=[];for(var t=v(this.stepValue),i=0;i<=this.steps;i++)this.yLabels.push(C(this.templateString,{value:(this.min+i*this.stepValue).toFixed(t)}));this.yLabelWidth=this.display&&this.showLabels?z(this.ctx,this.font,this.yLabels):0},addXLabel:function(t){this.xLabels.push(t),this.valuesCount++,this.fit()},removeXLabel:function(){this.xLabels.shift(),this.valuesCount--,this.fit()},fit:function(){this.startPoint=this.display?this.fontSize:0,this.endPoint=this.display?this.height-1.5*this.fontSize-5:this.height,this.startPoint+=this.padding,this.endPoint-=this.padding;var t,i=this.endPoint-this.startPoint;for(this.calculateYRange(i),this.buildYLabels(),this.calculateXLabelRotation();i>this.endPoint-this.startPoint;)i=this.endPoint-this.startPoint,t=this.yLabelWidth,this.calculateYRange(i),this.buildYLabels(),t<this.yLabelWidth&&this.calculateXLabelRotation()},calculateXLabelRotation:function(){this.ctx.font=this.font;var t,i,e=this.ctx.measureText(this.xLabels[0]).width,s=this.ctx.measureText(this.xLabels[this.xLabels.length-1]).width;if(this.xScalePaddingRight=s/2+3,this.xScalePaddingLeft=e/2>this.yLabelWidth+10?e/2:this.yLabelWidth+10,this.xLabelRotation=0,this.display){var n,o=z(this.ctx,this.font,this.xLabels);this.xLabelWidth=o;for(var a=Math.floor(this.calculateX(1)-this.calculateX(0))-6;this.xLabelWidth>a&&0===this.xLabelRotation||this.xLabelWidth>a&&this.xLabelRotation<=90&&this.xLabelRotation>0;)n=Math.cos(S(this.xLabelRotation)),t=n*e,i=n*s,t+this.fontSize/2>this.yLabelWidth+8&&(this.xScalePaddingLeft=t+this.fontSize/2),this.xScalePaddingRight=this.fontSize/2,this.xLabelRotation++,this.xLabelWidth=n*o;this.xLabelRotation>0&&(this.endPoint-=Math.sin(S(this.xLabelRotation))*o+3)}else this.xLabelWidth=0,this.xScalePaddingRight=this.padding,this.xScalePaddingLeft=this.padding},calculateYRange:c,drawingArea:function(){return this.startPoint-this.endPoint},calculateY:function(t){var i=this.drawingArea()/(this.min-this.max);return this.endPoint-i*(t-this.min)},calculateX:function(t){var i=(this.xLabelRotation>0,this.width-(this.xScalePaddingLeft+this.xScalePaddingRight)),e=i/Math.max(this.valuesCount-(this.offsetGridLines?0:1),1),s=e*t+this.xScalePaddingLeft;return this.offsetGridLines&&(s+=e/2),Math.round(s)},update:function(t){s.extend(this,t),this.fit()},draw:function(){var t=this.ctx,i=(this.endPoint-this.startPoint)/this.steps,e=Math.round(this.xScalePaddingLeft);this.display&&(t.fillStyle=this.textColor,t.font=this.font,n(this.yLabels,function(n,o){var a=this.endPoint-i*o,h=Math.round(a),l=this.showHorizontalLines;t.textAlign="right",t.textBaseline="middle",this.showLabels&&t.fillText(n,e-10,a),0!==o||l||(l=!0),l&&t.beginPath(),o>0?(t.lineWidth=this.gridLineWidth,t.strokeStyle=this.gridLineColor):(t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor),h+=s.aliasPixel(t.lineWidth),l&&(t.moveTo(e,h),t.lineTo(this.width,h),t.stroke(),t.closePath()),t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor,t.beginPath(),t.moveTo(e-5,h),t.lineTo(e,h),t.stroke(),t.closePath()},this),n(this.xLabels,function(i,e){var s=this.calculateX(e)+x(this.lineWidth),n=this.calculateX(e-(this.offsetGridLines?.5:0))+x(this.lineWidth),o=this.xLabelRotation>0,a=this.showVerticalLines;0!==e||a||(a=!0),a&&t.beginPath(),e>0?(t.lineWidth=this.gridLineWidth,t.strokeStyle=this.gridLineColor):(t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor),a&&(t.moveTo(n,this.endPoint),t.lineTo(n,this.startPoint-3),t.stroke(),t.closePath()),t.lineWidth=this.lineWidth,t.strokeStyle=this.lineColor,t.beginPath(),t.moveTo(n,this.endPoint),t.lineTo(n,this.endPoint+5),t.stroke(),t.closePath(),t.save(),t.translate(s,o?this.endPoint+12:this.endPoint+8),t.rotate(-1*S(this.xLabelRotation)),t.font=this.font,t.textAlign=o?"right":"center",t.textBaseline=o?"middle":"top",t.fillText(i,0,0),t.restore()},this))}}),e.RadialScale=e.Element.extend({initialize:function(){this.size=m([this.height,this.width]),this.drawingArea=this.display?this.size/2-(this.fontSize/2+this.backdropPaddingY):this.size/2},calculateCenterOffset:function(t){var i=this.drawingArea/(this.max-this.min);return(t-this.min)*i},update:function(){this.lineArc?this.drawingArea=this.display?this.size/2-(this.fontSize/2+this.backdropPaddingY):this.size/2:this.setScaleSize(),this.buildYLabels()},buildYLabels:function(){this.yLabels=[];for(var t=v(this.stepValue),i=0;i<=this.steps;i++)this.yLabels.push(C(this.templateString,{value:(this.min+i*this.stepValue).toFixed(t)}))},getCircumference:function(){return 2*Math.PI/this.valuesCount},setScaleSize:function(){var t,i,e,s,n,o,a,h,l,r,c,u,d=m([this.height/2-this.pointLabelFontSize-5,this.width/2]),p=this.width,g=0;for(this.ctx.font=W(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily),i=0;i<this.valuesCount;i++)t=this.getPointPosition(i,d),e=this.ctx.measureText(C(this.templateString,{value:this.labels[i]})).width+5,0===i||i===this.valuesCount/2?(s=e/2,t.x+s>p&&(p=t.x+s,n=i),t.x-s<g&&(g=t.x-s,a=i)):i<this.valuesCount/2?t.x+e>p&&(p=t.x+e,n=i):i>this.valuesCount/2&&t.x-e<g&&(g=t.x-e,a=i);l=g,r=Math.ceil(p-this.width),o=this.getIndexAngle(n),h=this.getIndexAngle(a),c=r/Math.sin(o+Math.PI/2),u=l/Math.sin(h+Math.PI/2),c=f(c)?c:0,u=f(u)?u:0,this.drawingArea=d-(u+c)/2,this.setCenterPoint(u,c)},setCenterPoint:function(t,i){var e=this.width-i-this.drawingArea,s=t+this.drawingArea;this.xCenter=(s+e)/2,this.yCenter=this.height/2},getIndexAngle:function(t){var i=2*Math.PI/this.valuesCount;return t*i-Math.PI/2},getPointPosition:function(t,i){var e=this.getIndexAngle(t);return{x:Math.cos(e)*i+this.xCenter,y:Math.sin(e)*i+this.yCenter}},draw:function(){if(this.display){var t=this.ctx;if(n(this.yLabels,function(i,e){if(e>0){var s,n=e*(this.drawingArea/this.steps),o=this.yCenter-n;if(this.lineWidth>0)if(t.strokeStyle=this.lineColor,t.lineWidth=this.lineWidth,this.lineArc)t.beginPath(),t.arc(this.xCenter,this.yCenter,n,0,2*Math.PI),t.closePath(),t.stroke();else{t.beginPath();for(var a=0;a<this.valuesCount;a++)s=this.getPointPosition(a,this.calculateCenterOffset(this.min+e*this.stepValue)),0===a?t.moveTo(s.x,s.y):t.lineTo(s.x,s.y);t.closePath(),t.stroke()}if(this.showLabels){if(t.font=W(this.fontSize,this.fontStyle,this.fontFamily),this.showLabelBackdrop){var h=t.measureText(i).width;t.fillStyle=this.backdropColor,t.fillRect(this.xCenter-h/2-this.backdropPaddingX,o-this.fontSize/2-this.backdropPaddingY,h+2*this.backdropPaddingX,this.fontSize+2*this.backdropPaddingY)}t.textAlign="center",t.textBaseline="middle",t.fillStyle=this.fontColor,t.fillText(i,this.xCenter,o)}}},this),!this.lineArc){t.lineWidth=this.angleLineWidth,t.strokeStyle=this.angleLineColor;for(var i=this.valuesCount-1;i>=0;i--){if(this.angleLineWidth>0){var e=this.getPointPosition(i,this.calculateCenterOffset(this.max));t.beginPath(),t.moveTo(this.xCenter,this.yCenter),t.lineTo(e.x,e.y),t.stroke(),t.closePath()}var s=this.getPointPosition(i,this.calculateCenterOffset(this.max)+5);t.font=W(this.pointLabelFontSize,this.pointLabelFontStyle,this.pointLabelFontFamily),t.fillStyle=this.pointLabelFontColor;var o=this.labels.length,a=this.labels.length/2,h=a/2,l=h>i||i>o-h,r=i===h||i===o-h;t.textAlign=0===i?"center":i===a?"center":a>i?"left":"right",t.textBaseline=r?"middle":l?"bottom":"top",t.fillText(this.labels[i],s.x,s.y)}}}}}),s.addEvent(window,"resize",function(){var t;return function(){clearTimeout(t),t=setTimeout(function(){n(e.instances,function(t){t.options.responsive&&t.resize(t.render,!0)})},50)}}()),p?define(function(){return e}):"object"==typeof module&&module.exports&&(module.exports=e),t.Chart=e,e.noConflict=function(){return t.Chart=i,e}}).call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={scaleBeginAtZero:!0,scaleShowGridLines:!0,scaleGridLineColor:"rgba(0,0,0,.05)",scaleGridLineWidth:1,scaleShowHorizontalLines:!0,scaleShowVerticalLines:!0,barShowStroke:!0,barStrokeWidth:2,barValueSpacing:5,barDatasetSpacing:1,legendTemplate:''<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<datasets.length; i++){%><li><span style="background-color:<%=datasets[i].fillColor%>"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>''};i.Type.extend({name:"Bar",defaults:s,initialize:function(t){var s=this.options;this.ScaleClass=i.Scale.extend({offsetGridLines:!0,calculateBarX:function(t,i,e){var n=this.calculateBaseWidth(),o=this.calculateX(e)-n/2,a=this.calculateBarWidth(t);return o+a*i+i*s.barDatasetSpacing+a/2},calculateBaseWidth:function(){return this.calculateX(1)-this.calculateX(0)-2*s.barValueSpacing},calculateBarWidth:function(t){var i=this.calculateBaseWidth()-(t-1)*s.barDatasetSpacing;return i/t}}),this.datasets=[],this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getBarsAtEvent(t):[];this.eachBars(function(t){t.restore(["fillColor","strokeColor"])}),e.each(i,function(t){t.fillColor=t.highlightFill,t.strokeColor=t.highlightStroke}),this.showTooltip(i)}),this.BarClass=i.Rectangle.extend({strokeWidth:this.options.barStrokeWidth,showStroke:this.options.barShowStroke,ctx:this.chart.ctx}),e.each(t.datasets,function(i){var s={label:i.label||null,fillColor:i.fillColor,strokeColor:i.strokeColor,bars:[]};this.datasets.push(s),e.each(i.data,function(e,n){s.bars.push(new this.BarClass({value:e,label:t.labels[n],datasetLabel:i.label,strokeColor:i.strokeColor,fillColor:i.fillColor,highlightFill:i.highlightFill||i.fillColor,highlightStroke:i.highlightStroke||i.strokeColor}))},this)},this),this.buildScale(t.labels),this.BarClass.prototype.base=this.scale.endPoint,this.eachBars(function(t,i,s){e.extend(t,{width:this.scale.calculateBarWidth(this.datasets.length),x:this.scale.calculateBarX(this.datasets.length,s,i),y:this.scale.endPoint}),t.save()},this),this.render()},update:function(){this.scale.update(),e.each(this.activeElements,function(t){t.restore(["fillColor","strokeColor"])}),this.eachBars(function(t){t.save()}),this.render()},eachBars:function(t){e.each(this.datasets,function(i,s){e.each(i.bars,t,this,s)},this)},getBarsAtEvent:function(t){for(var i,s=[],n=e.getRelativePosition(t),o=function(t){s.push(t.bars[i])},a=0;a<this.datasets.length;a++)for(i=0;i<this.datasets[a].bars.length;i++)if(this.datasets[a].bars[i].inRange(n.x,n.y))return e.each(this.datasets,o),s;return s},buildScale:function(t){var i=this,s=function(){var t=[];return i.eachBars(function(i){t.push(i.value)}),t},n={templateString:this.options.scaleLabel,height:this.chart.height,width:this.chart.width,ctx:this.chart.ctx,textColor:this.options.scaleFontColor,fontSize:this.options.scaleFontSize,fontStyle:this.options.scaleFontStyle,fontFamily:this.options.scaleFontFamily,valuesCount:t.length,beginAtZero:this.options.scaleBeginAtZero,integersOnly:this.options.scaleIntegersOnly,calculateYRange:function(t){var i=e.calculateScaleRange(s(),t,this.fontSize,this.beginAtZero,this.integersOnly);e.extend(this,i)},xLabels:t,font:e.fontString(this.options.scaleFontSize,this.options.scaleFontStyle,this.options.scaleFontFamily),lineWidth:this.options.scaleLineWidth,lineColor:this.options.scaleLineColor,showHorizontalLines:this.options.scaleShowHorizontalLines,showVerticalLines:this.options.scaleShowVerticalLines,gridLineWidth:this.options.scaleShowGridLines?this.options.scaleGridLineWidth:0,gridLineColor:this.options.scaleShowGridLines?this.options.scaleGridLineColor:"rgba(0,0,0,0)",padding:this.options.showScale?0:this.options.barShowStroke?this.options.barStrokeWidth:0,showLabels:this.options.scaleShowLabels,display:this.options.showScale};this.options.scaleOverride&&e.extend(n,{calculateYRange:e.noop,steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleSteps*this.options.scaleStepWidth}),this.scale=new this.ScaleClass(n)},addData:function(t,i){e.each(t,function(t,e){this.datasets[e].bars.push(new this.BarClass({value:t,label:i,x:this.scale.calculateBarX(this.datasets.length,e,this.scale.valuesCount+1),y:this.scale.endPoint,width:this.scale.calculateBarWidth(this.datasets.length),base:this.scale.endPoint,strokeColor:this.datasets[e].strokeColor,fillColor:this.datasets[e].fillColor}))
-},this),this.scale.addXLabel(i),this.update()},removeData:function(){this.scale.removeXLabel(),e.each(this.datasets,function(t){t.bars.shift()},this),this.update()},reflow:function(){e.extend(this.BarClass.prototype,{y:this.scale.endPoint,base:this.scale.endPoint});var t=e.extend({height:this.chart.height,width:this.chart.width});this.scale.update(t)},draw:function(t){var i=t||1;this.clear();this.chart.ctx;this.scale.draw(i),e.each(this.datasets,function(t,s){e.each(t.bars,function(t,e){t.hasValue()&&(t.base=this.scale.endPoint,t.transition({x:this.scale.calculateBarX(this.datasets.length,s,e),y:this.scale.calculateY(t.value),width:this.scale.calculateBarWidth(this.datasets.length)},i).draw())},this)},this)}})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={segmentShowStroke:!0,segmentStrokeColor:"#fff",segmentStrokeWidth:2,percentageInnerCutout:50,animationSteps:100,animationEasing:"easeOutBounce",animateRotate:!0,animateScale:!1,legendTemplate:''<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<segments.length; i++){%><li><span style="background-color:<%=segments[i].fillColor%>"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>''};i.Type.extend({name:"Doughnut",defaults:s,initialize:function(t){this.segments=[],this.outerRadius=(e.min([this.chart.width,this.chart.height])-this.options.segmentStrokeWidth/2)/2,this.SegmentArc=i.Arc.extend({ctx:this.chart.ctx,x:this.chart.width/2,y:this.chart.height/2}),this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getSegmentsAtEvent(t):[];e.each(this.segments,function(t){t.restore(["fillColor"])}),e.each(i,function(t){t.fillColor=t.highlightColor}),this.showTooltip(i)}),this.calculateTotal(t),e.each(t,function(t,i){this.addData(t,i,!0)},this),this.render()},getSegmentsAtEvent:function(t){var i=[],s=e.getRelativePosition(t);return e.each(this.segments,function(t){t.inRange(s.x,s.y)&&i.push(t)},this),i},addData:function(t,i,e){var s=i||this.segments.length;this.segments.splice(s,0,new this.SegmentArc({value:t.value,outerRadius:this.options.animateScale?0:this.outerRadius,innerRadius:this.options.animateScale?0:this.outerRadius/100*this.options.percentageInnerCutout,fillColor:t.color,highlightColor:t.highlight||t.color,showStroke:this.options.segmentShowStroke,strokeWidth:this.options.segmentStrokeWidth,strokeColor:this.options.segmentStrokeColor,startAngle:1.5*Math.PI,circumference:this.options.animateRotate?0:this.calculateCircumference(t.value),label:t.label})),e||(this.reflow(),this.update())},calculateCircumference:function(t){return 2*Math.PI*(Math.abs(t)/this.total)},calculateTotal:function(t){this.total=0,e.each(t,function(t){this.total+=Math.abs(t.value)},this)},update:function(){this.calculateTotal(this.segments),e.each(this.activeElements,function(t){t.restore(["fillColor"])}),e.each(this.segments,function(t){t.save()}),this.render()},removeData:function(t){var i=e.isNumber(t)?t:this.segments.length-1;this.segments.splice(i,1),this.reflow(),this.update()},reflow:function(){e.extend(this.SegmentArc.prototype,{x:this.chart.width/2,y:this.chart.height/2}),this.outerRadius=(e.min([this.chart.width,this.chart.height])-this.options.segmentStrokeWidth/2)/2,e.each(this.segments,function(t){t.update({outerRadius:this.outerRadius,innerRadius:this.outerRadius/100*this.options.percentageInnerCutout})},this)},draw:function(t){var i=t?t:1;this.clear(),e.each(this.segments,function(t,e){t.transition({circumference:this.calculateCircumference(t.value),outerRadius:this.outerRadius,innerRadius:this.outerRadius/100*this.options.percentageInnerCutout},i),t.endAngle=t.startAngle+t.circumference,t.draw(),0===e&&(t.startAngle=1.5*Math.PI),e<this.segments.length-1&&(this.segments[e+1].startAngle=t.endAngle)},this)}}),i.types.Doughnut.extend({name:"Pie",defaults:e.merge(s,{percentageInnerCutout:0})})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={scaleShowGridLines:!0,scaleGridLineColor:"rgba(0,0,0,.05)",scaleGridLineWidth:1,scaleShowHorizontalLines:!0,scaleShowVerticalLines:!0,bezierCurve:!0,bezierCurveTension:.4,pointDot:!0,pointDotRadius:4,pointDotStrokeWidth:1,pointHitDetectionRadius:20,datasetStroke:!0,datasetStrokeWidth:2,datasetFill:!0,legendTemplate:''<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<datasets.length; i++){%><li><span style="background-color:<%=datasets[i].strokeColor%>"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>''};i.Type.extend({name:"Line",defaults:s,initialize:function(t){this.PointClass=i.Point.extend({strokeWidth:this.options.pointDotStrokeWidth,radius:this.options.pointDotRadius,display:this.options.pointDot,hitDetectionRadius:this.options.pointHitDetectionRadius,ctx:this.chart.ctx,inRange:function(t){return Math.pow(t-this.x,2)<Math.pow(this.radius+this.hitDetectionRadius,2)}}),this.datasets=[],this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getPointsAtEvent(t):[];this.eachPoints(function(t){t.restore(["fillColor","strokeColor"])}),e.each(i,function(t){t.fillColor=t.highlightFill,t.strokeColor=t.highlightStroke}),this.showTooltip(i)}),e.each(t.datasets,function(i){var s={label:i.label||null,fillColor:i.fillColor,strokeColor:i.strokeColor,pointColor:i.pointColor,pointStrokeColor:i.pointStrokeColor,points:[]};this.datasets.push(s),e.each(i.data,function(e,n){s.points.push(new this.PointClass({value:e,label:t.labels[n],datasetLabel:i.label,strokeColor:i.pointStrokeColor,fillColor:i.pointColor,highlightFill:i.pointHighlightFill||i.pointColor,highlightStroke:i.pointHighlightStroke||i.pointStrokeColor}))},this),this.buildScale(t.labels),this.eachPoints(function(t,i){e.extend(t,{x:this.scale.calculateX(i),y:this.scale.endPoint}),t.save()},this)},this),this.render()},update:function(){this.scale.update(),e.each(this.activeElements,function(t){t.restore(["fillColor","strokeColor"])}),this.eachPoints(function(t){t.save()}),this.render()},eachPoints:function(t){e.each(this.datasets,function(i){e.each(i.points,t,this)},this)},getPointsAtEvent:function(t){var i=[],s=e.getRelativePosition(t);return e.each(this.datasets,function(t){e.each(t.points,function(t){t.inRange(s.x,s.y)&&i.push(t)})},this),i},buildScale:function(t){var s=this,n=function(){var t=[];return s.eachPoints(function(i){t.push(i.value)}),t},o={templateString:this.options.scaleLabel,height:this.chart.height,width:this.chart.width,ctx:this.chart.ctx,textColor:this.options.scaleFontColor,fontSize:this.options.scaleFontSize,fontStyle:this.options.scaleFontStyle,fontFamily:this.options.scaleFontFamily,valuesCount:t.length,beginAtZero:this.options.scaleBeginAtZero,integersOnly:this.options.scaleIntegersOnly,calculateYRange:function(t){var i=e.calculateScaleRange(n(),t,this.fontSize,this.beginAtZero,this.integersOnly);e.extend(this,i)},xLabels:t,font:e.fontString(this.options.scaleFontSize,this.options.scaleFontStyle,this.options.scaleFontFamily),lineWidth:this.options.scaleLineWidth,lineColor:this.options.scaleLineColor,showHorizontalLines:this.options.scaleShowHorizontalLines,showVerticalLines:this.options.scaleShowVerticalLines,gridLineWidth:this.options.scaleShowGridLines?this.options.scaleGridLineWidth:0,gridLineColor:this.options.scaleShowGridLines?this.options.scaleGridLineColor:"rgba(0,0,0,0)",padding:this.options.showScale?0:this.options.pointDotRadius+this.options.pointDotStrokeWidth,showLabels:this.options.scaleShowLabels,display:this.options.showScale};this.options.scaleOverride&&e.extend(o,{calculateYRange:e.noop,steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleSteps*this.options.scaleStepWidth}),this.scale=new i.Scale(o)},addData:function(t,i){e.each(t,function(t,e){this.datasets[e].points.push(new this.PointClass({value:t,label:i,x:this.scale.calculateX(this.scale.valuesCount+1),y:this.scale.endPoint,strokeColor:this.datasets[e].pointStrokeColor,fillColor:this.datasets[e].pointColor}))},this),this.scale.addXLabel(i),this.update()},removeData:function(){this.scale.removeXLabel(),e.each(this.datasets,function(t){t.points.shift()},this),this.update()},reflow:function(){var t=e.extend({height:this.chart.height,width:this.chart.width});this.scale.update(t)},draw:function(t){var i=t||1;this.clear();var s=this.chart.ctx,n=function(t){return null!==t.value},o=function(t,i,s){return e.findNextWhere(i,n,s)||t},a=function(t,i,s){return e.findPreviousWhere(i,n,s)||t};this.scale.draw(i),e.each(this.datasets,function(t){var h=e.where(t.points,n);e.each(t.points,function(t,e){t.hasValue()&&t.transition({y:this.scale.calculateY(t.value),x:this.scale.calculateX(e)},i)},this),this.options.bezierCurve&&e.each(h,function(t,i){var s=i>0&&i<h.length-1?this.options.bezierCurveTension:0;t.controlPoints=e.splineCurve(a(t,h,i),t,o(t,h,i),s),t.controlPoints.outer.y>this.scale.endPoint?t.controlPoints.outer.y=this.scale.endPoint:t.controlPoints.outer.y<this.scale.startPoint&&(t.controlPoints.outer.y=this.scale.startPoint),t.controlPoints.inner.y>this.scale.endPoint?t.controlPoints.inner.y=this.scale.endPoint:t.controlPoints.inner.y<this.scale.startPoint&&(t.controlPoints.inner.y=this.scale.startPoint)},this),s.lineWidth=this.options.datasetStrokeWidth,s.strokeStyle=t.strokeColor,s.beginPath(),e.each(h,function(t,i){if(0===i)s.moveTo(t.x,t.y);else if(this.options.bezierCurve){var e=a(t,h,i);s.bezierCurveTo(e.controlPoints.outer.x,e.controlPoints.outer.y,t.controlPoints.inner.x,t.controlPoints.inner.y,t.x,t.y)}else s.lineTo(t.x,t.y)},this),s.stroke(),this.options.datasetFill&&h.length>0&&(s.lineTo(h[h.length-1].x,this.scale.endPoint),s.lineTo(h[0].x,this.scale.endPoint),s.fillStyle=t.fillColor,s.closePath(),s.fill()),e.each(h,function(t){t.draw()})},this)}})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers,s={scaleShowLabelBackdrop:!0,scaleBackdropColor:"rgba(255,255,255,0.75)",scaleBeginAtZero:!0,scaleBackdropPaddingY:2,scaleBackdropPaddingX:2,scaleShowLine:!0,segmentShowStroke:!0,segmentStrokeColor:"#fff",segmentStrokeWidth:2,animationSteps:100,animationEasing:"easeOutBounce",animateRotate:!0,animateScale:!1,legendTemplate:''<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<segments.length; i++){%><li><span style="background-color:<%=segments[i].fillColor%>"></span><%if(segments[i].label){%><%=segments[i].label%><%}%></li><%}%></ul>''};i.Type.extend({name:"PolarArea",defaults:s,initialize:function(t){this.segments=[],this.SegmentArc=i.Arc.extend({showStroke:this.options.segmentShowStroke,strokeWidth:this.options.segmentStrokeWidth,strokeColor:this.options.segmentStrokeColor,ctx:this.chart.ctx,innerRadius:0,x:this.chart.width/2,y:this.chart.height/2}),this.scale=new i.RadialScale({display:this.options.showScale,fontStyle:this.options.scaleFontStyle,fontSize:this.options.scaleFontSize,fontFamily:this.options.scaleFontFamily,fontColor:this.options.scaleFontColor,showLabels:this.options.scaleShowLabels,showLabelBackdrop:this.options.scaleShowLabelBackdrop,backdropColor:this.options.scaleBackdropColor,backdropPaddingY:this.options.scaleBackdropPaddingY,backdropPaddingX:this.options.scaleBackdropPaddingX,lineWidth:this.options.scaleShowLine?this.options.scaleLineWidth:0,lineColor:this.options.scaleLineColor,lineArc:!0,width:this.chart.width,height:this.chart.height,xCenter:this.chart.width/2,yCenter:this.chart.height/2,ctx:this.chart.ctx,templateString:this.options.scaleLabel,valuesCount:t.length}),this.updateScaleRange(t),this.scale.update(),e.each(t,function(t,i){this.addData(t,i,!0)},this),this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getSegmentsAtEvent(t):[];e.each(this.segments,function(t){t.restore(["fillColor"])}),e.each(i,function(t){t.fillColor=t.highlightColor}),this.showTooltip(i)}),this.render()},getSegmentsAtEvent:function(t){var i=[],s=e.getRelativePosition(t);return e.each(this.segments,function(t){t.inRange(s.x,s.y)&&i.push(t)},this),i},addData:function(t,i,e){var s=i||this.segments.length;this.segments.splice(s,0,new this.SegmentArc({fillColor:t.color,highlightColor:t.highlight||t.color,label:t.label,value:t.value,outerRadius:this.options.animateScale?0:this.scale.calculateCenterOffset(t.value),circumference:this.options.animateRotate?0:this.scale.getCircumference(),startAngle:1.5*Math.PI})),e||(this.reflow(),this.update())},removeData:function(t){var i=e.isNumber(t)?t:this.segments.length-1;this.segments.splice(i,1),this.reflow(),this.update()},calculateTotal:function(t){this.total=0,e.each(t,function(t){this.total+=t.value},this),this.scale.valuesCount=this.segments.length},updateScaleRange:function(t){var i=[];e.each(t,function(t){i.push(t.value)});var s=this.options.scaleOverride?{steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleSteps*this.options.scaleStepWidth}:e.calculateScaleRange(i,e.min([this.chart.width,this.chart.height])/2,this.options.scaleFontSize,this.options.scaleBeginAtZero,this.options.scaleIntegersOnly);e.extend(this.scale,s,{size:e.min([this.chart.width,this.chart.height]),xCenter:this.chart.width/2,yCenter:this.chart.height/2})},update:function(){this.calculateTotal(this.segments),e.each(this.segments,function(t){t.save()}),this.reflow(),this.render()},reflow:function(){e.extend(this.SegmentArc.prototype,{x:this.chart.width/2,y:this.chart.height/2}),this.updateScaleRange(this.segments),this.scale.update(),e.extend(this.scale,{xCenter:this.chart.width/2,yCenter:this.chart.height/2}),e.each(this.segments,function(t){t.update({outerRadius:this.scale.calculateCenterOffset(t.value)})},this)},draw:function(t){var i=t||1;this.clear(),e.each(this.segments,function(t,e){t.transition({circumference:this.scale.getCircumference(),outerRadius:this.scale.calculateCenterOffset(t.value)},i),t.endAngle=t.startAngle+t.circumference,0===e&&(t.startAngle=1.5*Math.PI),e<this.segments.length-1&&(this.segments[e+1].startAngle=t.endAngle),t.draw()},this),this.scale.draw()}})}.call(this),function(){"use strict";var t=this,i=t.Chart,e=i.helpers;i.Type.extend({name:"Radar",defaults:{scaleShowLine:!0,angleShowLineOut:!0,scaleShowLabels:!1,scaleBeginAtZero:!0,angleLineColor:"rgba(0,0,0,.1)",angleLineWidth:1,pointLabelFontFamily:"''Arial''",pointLabelFontStyle:"normal",pointLabelFontSize:10,pointLabelFontColor:"#666",pointDot:!0,pointDotRadius:3,pointDotStrokeWidth:1,pointHitDetectionRadius:20,datasetStroke:!0,datasetStrokeWidth:2,datasetFill:!0,legendTemplate:''<ul class="<%=name.toLowerCase()%>-legend"><% for (var i=0; i<datasets.length; i++){%><li><span style="background-color:<%=datasets[i].strokeColor%>"></span><%if(datasets[i].label){%><%=datasets[i].label%><%}%></li><%}%></ul>''},initialize:function(t){this.PointClass=i.Point.extend({strokeWidth:this.options.pointDotStrokeWidth,radius:this.options.pointDotRadius,display:this.options.pointDot,hitDetectionRadius:this.options.pointHitDetectionRadius,ctx:this.chart.ctx}),this.datasets=[],this.buildScale(t),this.options.showTooltips&&e.bindEvents(this,this.options.tooltipEvents,function(t){var i="mouseout"!==t.type?this.getPointsAtEvent(t):[];this.eachPoints(function(t){t.restore(["fillColor","strokeColor"])}),e.each(i,function(t){t.fillColor=t.highlightFill,t.strokeColor=t.highlightStroke}),this.showTooltip(i)}),e.each(t.datasets,function(i){var s={label:i.label||null,fillColor:i.fillColor,strokeColor:i.strokeColor,pointColor:i.pointColor,pointStrokeColor:i.pointStrokeColor,points:[]};this.datasets.push(s),e.each(i.data,function(e,n){var o;this.scale.animation||(o=this.scale.getPointPosition(n,this.scale.calculateCenterOffset(e))),s.points.push(new this.PointClass({value:e,label:t.labels[n],datasetLabel:i.label,x:this.options.animation?this.scale.xCenter:o.x,y:this.options.animation?this.scale.yCenter:o.y,strokeColor:i.pointStrokeColor,fillColor:i.pointColor,highlightFill:i.pointHighlightFill||i.pointColor,highlightStroke:i.pointHighlightStroke||i.pointStrokeColor}))},this)},this),this.render()},eachPoints:function(t){e.each(this.datasets,function(i){e.each(i.points,t,this)},this)},getPointsAtEvent:function(t){var i=e.getRelativePosition(t),s=e.getAngleFromPoint({x:this.scale.xCenter,y:this.scale.yCenter},i),n=2*Math.PI/this.scale.valuesCount,o=Math.round((s.angle-1.5*Math.PI)/n),a=[];return(o>=this.scale.valuesCount||0>o)&&(o=0),s.distance<=this.scale.drawingArea&&e.each(this.datasets,function(t){a.push(t.points[o])}),a},buildScale:function(t){this.scale=new i.RadialScale({display:this.options.showScale,fontStyle:this.options.scaleFontStyle,fontSize:this.options.scaleFontSize,fontFamily:this.options.scaleFontFamily,fontColor:this.options.scaleFontColor,showLabels:this.options.scaleShowLabels,showLabelBackdrop:this.options.scaleShowLabelBackdrop,backdropColor:this.options.scaleBackdropColor,backdropPaddingY:this.options.scaleBackdropPaddingY,backdropPaddingX:this.options.scaleBackdropPaddingX,lineWidth:this.options.scaleShowLine?this.options.scaleLineWidth:0,lineColor:this.options.scaleLineColor,angleLineColor:this.options.angleLineColor,angleLineWidth:this.options.angleShowLineOut?this.options.angleLineWidth:0,pointLabelFontColor:this.options.pointLabelFontColor,pointLabelFontSize:this.options.pointLabelFontSize,pointLabelFontFamily:this.options.pointLabelFontFamily,pointLabelFontStyle:this.options.pointLabelFontStyle,height:this.chart.height,width:this.chart.width,xCenter:this.chart.width/2,yCenter:this.chart.height/2,ctx:this.chart.ctx,templateString:this.options.scaleLabel,labels:t.labels,valuesCount:t.datasets[0].data.length}),this.scale.setScaleSize(),this.updateScaleRange(t.datasets),this.scale.buildYLabels()},updateScaleRange:function(t){var i=function(){var i=[];return e.each(t,function(t){t.data?i=i.concat(t.data):e.each(t.points,function(t){i.push(t.value)})}),i}(),s=this.options.scaleOverride?{steps:this.options.scaleSteps,stepValue:this.options.scaleStepWidth,min:this.options.scaleStartValue,max:this.options.scaleStartValue+this.options.scaleSteps*this.options.scaleStepWidth}:e.calculateScaleRange(i,e.min([this.chart.width,this.chart.height])/2,this.options.scaleFontSize,this.options.scaleBeginAtZero,this.options.scaleIntegersOnly);e.extend(this.scale,s)},addData:function(t,i){this.scale.valuesCount++,e.each(t,function(t,e){var s=this.scale.getPointPosition(this.scale.valuesCount,this.scale.calculateCenterOffset(t));this.datasets[e].points.push(new this.PointClass({value:t,label:i,x:s.x,y:s.y,strokeColor:this.datasets[e].pointStrokeColor,fillColor:this.datasets[e].pointColor}))},this),this.scale.labels.push(i),this.reflow(),this.update()},removeData:function(){this.scale.valuesCount--,this.scale.labels.shift(),e.each(this.datasets,function(t){t.points.shift()},this),this.reflow(),this.update()},update:function(){this.eachPoints(function(t){t.save()}),this.reflow(),this.render()},reflow:function(){e.extend(this.scale,{width:this.chart.width,height:this.chart.height,size:e.min([this.chart.width,this.chart.height]),xCenter:this.chart.width/2,yCenter:this.chart.height/2}),this.updateScaleRange(this.datasets),this.scale.setScaleSize(),this.scale.buildYLabels()},draw:function(t){var i=t||1,s=this.chart.ctx;this.clear(),this.scale.draw(),e.each(this.datasets,function(t){e.each(t.points,function(t,e){t.hasValue()&&t.transition(this.scale.getPointPosition(e,this.scale.calculateCenterOffset(t.value)),i)},this),s.lineWidth=this.options.datasetStrokeWidth,s.strokeStyle=t.strokeColor,s.beginPath(),e.each(t.points,function(t,i){0===i?s.moveTo(t.x,t.y):s.lineTo(t.x,t.y)},this),s.closePath(),s.stroke(),s.fillStyle=t.fillColor,s.fill(),e.each(t.points,function(t){t.hasValue()&&t.draw()})},this)}})}.call(this);'
+	^ ''
 ]
 
 { #category : #accessing }
@@ -4165,5 +16317,5 @@ ChartJsLibrary >> postJs [
 
 { #category : #accessing }
 ChartJsLibrary >> selectorsToInclude [
-	^ #(ChartJs postJs ChartJsCss extChartJs BarPlotChartJs)
+	^ #(ChartJs postJs ChartJsCss extChartJs BarPlotChartJs) 
 ]