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Diamond and upside-down triangle markers added #11

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Diamond and upside-down triangle markers added #11

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7d2f189
Update leaflet.legend.js
DaveEdge1 Feb 1, 2024
e1b56ec
Update leaflet.legend.js
DaveEdge1 Feb 1, 2024
b5022e8
Update leaflet.legend.js
DaveEdge1 Mar 19, 2025
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55 changes: 55 additions & 0 deletions src/leaflet.legend.js
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Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,57 @@
}
}

class StarSymbol extends GeometricSymbol {
_drawSymbol() {
var ctx = (this._ctx = this._canvas.getContext("2d"));

var linelWeight = this._legend.weight || 3;
var rot=Math.PI/2*3;
var outerRadius = this._control.options.symbolWidth / 2;
var innerRadius = outerRadius / 2;
var x = this._control.options.symbolWidth / 2;
var y = this._control.options.symbolHeight / 2;
var step=Math.PI/this._legend.sides;
ctx.beginPath();
ctx.moveTo(cx,cy-outerRadius)
for(i=0;i<this._legend.sides;i++){
x=cx+Math.cos(rot)*outerRadius;
y=cy+Math.sin(rot)*outerRadius;
ctx.lineTo(x,y)
rot+=step

x=cx+Math.cos(rot)*innerRadius;
y=cy+Math.sin(rot)*innerRadius;
ctx.lineTo(x,y)
rot+=step
}
ctx.lineTo(cx,cy-outerRadius);
ctx.closePath();
}
}

class PolygonRSymbol extends GeometricSymbol {
_drawSymbol() {
var ctx = (this._ctx = this._canvas.getContext("2d"));
var linelWeight = this._legend.weight || 3;
var x0 = this._control.options.symbolWidth / 2;
var y0 = this._control.options.symbolHeight / 2;
var r = Math.min(x0, y0) - linelWeight;
var a = 360 / this._legend.sides;
var rot1 = 360/(this._legend.sides*2);
ctx.beginPath();
for (var i = 0; i <= this._legend.sides; i++) {
var x1 = x0 + r * Math.cos(((a * i + (90 - a / 2) + rot1) * Math.PI) / 180);
var y1 = y0 + r * Math.sin(((a * i + (90 - a / 2) + rot1) * Math.PI) / 180);
if (i == 0) {
ctx.moveTo(x1, y1);
} else {
ctx.lineTo(x1, y1);
}
}
}
}

class ImageSymbol extends LegendSymbol {
constructor(control, container, legend) {
super(control, container, legend);
Expand Down Expand Up @@ -259,6 +310,10 @@
legendSymbol = new RectangleSymbol(this, symbolContainer, legend);
} else if (legend.type === "polygon") {
legendSymbol = new PolygonSymbol(this, symbolContainer, legend);
} else if (legend.type === "star") {
legendSymbol = new starSymbol(this, symbolContainer, legend);
} else if (legend.type === "polygonR") {
legendSymbol = new PolygonRSymbol(this, symbolContainer, legend);
} else if (legend.type === "polyline") {
legendSymbol = new PolylineSymbol(this, symbolContainer, legend);
} else {
Expand Down