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"boundsConforming" : [ 633370, 215000, 88, 645001, 228501, 559 ], + "dataType" : "laszip", + "hierarchyType" : "json", + "numPoints" : 2269213, + "offset" : [ 639185, 221750, 324 ], + "scale" : 0.01, + "schema" : [ + { + "name" : "X", + "type" : "int32" + }, + { + "name" : "Y", + "type" : "int32" + }, + { + "name" : "Z", + "type" : "int32" + }, + { + "name" : "Intensity", + "type" : "uint16" + }, + { + "name" : "ReturnNumber", + "type" : "uint8" + }, + { + "name" : "NumberOfReturns", + "type" : "uint8" + }, + { + "name" : "ScanDirectionFlag", + "type" : "uint8" + }, + { + "name" : "EdgeOfFlightLine", + "type" : "uint8" + }, + { + "name" : "Classification", + "type" : "uint8" + }, + { + "name" : "ScanAngleRank", + "type" : "float" + }, + { + "name" : "UserData", + "type" : "uint8" + }, + { + "name" : "PointSourceId", + "type" : "uint16" + }, + { + "name" : "GpsTime", + "type" : "double" + }, + { + "name" : "Red", + "type" : "uint16" + }, + { + "name" : "Green", + "type" : "uint16" + }, + { + "name" : "Blue", + "type" : "uint16" + }, + { + "name" : "OriginId", + "type" : "uint32" + } + ], + "srs" : "PROJCS[\"NAD83 / North Carolina (ftUS)\",GEOGCS[\"NAD83\",DATUM[\"North_American_Datum_1983\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY[\"EPSG\",\"6269\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4269\"]],PROJECTION[\"Lambert_Conformal_Conic_2SP\"],PARAMETER[\"standard_parallel_1\",36.16666666666666],PARAMETER[\"standard_parallel_2\",34.33333333333334],PARAMETER[\"latitude_of_origin\",33.75],PARAMETER[\"central_meridian\",-79],PARAMETER[\"false_easting\",2000000],PARAMETER[\"false_northing\",0],UNIT[\"US survey foot\",0.3048006096012192,AUTHORITY[\"EPSG\",\"9003\"]],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH],AUTHORITY[\"EPSG\",\"2264\"]]", + "ticks" : 256 +} diff --git a/data/NorthCarolina/h/0-0-0-0.json b/data/NorthCarolina/h/0-0-0-0.json new file mode 100644 index 0000000..3670f78 --- /dev/null +++ b/data/NorthCarolina/h/0-0-0-0.json @@ -0,0 +1,79 @@ +{ + "0-0-0-0" : 32615, + "1-0-0-0" : 8860, + "1-0-0-1" : 63459, + "1-0-1-0" : 12764, + "1-0-1-1" : 4478, + "1-1-0-0" : 15749, + "1-1-0-1" : 8194, + "1-1-1-0" : 38256, + "1-1-1-1" : 32245, + "2-0-0-1" : 15416, + "2-0-0-2" : 43981, + "2-0-1-2" : 787, + "2-1-0-1" : 11561, + "2-1-0-2" : 82735, + "2-1-1-1" : 8914, + "2-1-1-2" : 92875, + "2-1-2-2" : 15498, + "2-2-1-2" : 26930, + "2-2-2-1" : 65135, + "2-2-2-2" : 46367, + "2-2-3-1" : 23473, + "2-2-3-2" : 33908, + "2-3-2-1" : 6778, + "2-3-2-2" : 3725, + "2-3-3-1" : 64585, + "2-3-3-2" : 49495, + "3-0-0-3" : 6354, + "3-0-0-4" : 6208, + "3-1-0-3" : 50916, + "3-1-0-4" : 42594, + "3-1-1-3" : 4068, + "3-1-1-4" : 39878, + "3-2-0-3" : 27987, + "3-2-0-4" : 36430, + "3-2-1-3" : 1601, + "3-2-1-4" : 80681, + "3-2-2-3" : 17057, + "3-2-2-4" : 68929, + "3-2-3-4" : 11663, + "3-3-1-3" : 11534, + "3-3-1-4" : 24177, + "3-3-2-3" : 22477, + "3-3-2-4" : 78095, + "3-3-3-4" : 73129, + "3-3-4-4" : 33875, + "3-3-5-4" : 5, + "3-4-2-4" : 4938, + "3-4-3-4" : 66817, + "3-4-4-3" : 88378, + "3-4-4-4" : 28557, + "3-4-5-3" : 35708, + "3-4-5-4" : 45101, + "3-4-6-3" : 449, + "3-4-6-4" : 10698, + "3-5-4-3" : 33711, + "3-5-4-4" : 761, + "3-5-5-3" : 68152, + "3-5-5-4" : 32121, + "3-5-6-3" : 41799, + "3-5-6-4" : 61444, + "3-5-7-3" : 36704, + "3-5-7-4" : 3481, + "3-6-6-3" : 52016, + "3-6-7-3" : 72809, + "3-7-7-3" : 33047, + "4-12-14-7" : 7740, + "4-12-15-7" : 9406, + "4-13-14-7" : 8027, + "4-13-15-7" : 8616, + "4-4-2-8" : 9167, + "4-4-3-8" : 9375, + "4-5-2-8" : 10537, + "4-5-3-8" : 7632, + "4-6-6-8" : 9470, + "4-6-7-8" : 6463, + "4-7-6-8" : 10729, + "4-7-7-8" : 8919 +} diff --git a/data/README.md b/data/README.md new file mode 100644 index 0000000..d9ab719 --- /dev/null +++ b/data/README.md @@ -0,0 +1,21 @@ +# Sample Data in EPT format + +The following dataset may be used for visualization and testing purposes. This point cloud sample dataset was originally prepared by Markus Neteler and Helena Mitasova in their book ["Open Source GIS: A GRASS GIS Approach"](https://grassbook.org/datasets/datasets-3rd-edition/). From their description: +> We developed a completely new free geospatial dataset and substituted all Spearfish (SD) examples in the previous editions with this new, much richer North Carolina (NC, USA) data set. This data set is a comprehensive collection of raster, vector and imagery data covering parts of North Carolina (NC), USA (map), prepared from public data sources provided by the North Carolina state and local government agencies and Global Land Cover Facility (GLCF) + +We will only use the sample lidar data. + +```bash +curl https://www.grassbook.org/wp-content/uploads/ncexternal/lidar_raleigh_nc_spm_height_feet.las -o .data/lidar_raleigh_nc_spm_height_feet.las +``` +Once it is downloaded, we can use pdal (or pdal in docker) to set the srs (as it is undefined in the data itself, but described on database [webpage](https://grassbook.org/datasets/datasets-3rd-edition/)). + +```bash +pdal pipeline data/set_srs.json +``` + +And then, using docker we can convert the laz file to the [EPT format](https://github.com/connormanning/ept): + +```bash +docker run -it -v /Users/iosefa/repos/pnext-io/data:/data connormanning/entwine build -i data/lidar_raleigh_nc_spm_height_feet.laz -o /data/NorthCarolina +``` diff --git a/data/lidar_raleigh_nc_spm_height_feet.las b/data/lidar_raleigh_nc_spm_height_feet.las new file mode 100644 index 0000000..79569b4 Binary files /dev/null and b/data/lidar_raleigh_nc_spm_height_feet.las differ diff --git a/data/lidar_raleigh_nc_spm_height_feet.laz b/data/lidar_raleigh_nc_spm_height_feet.laz new file mode 100644 index 0000000..cf58f28 Binary files /dev/null and b/data/lidar_raleigh_nc_spm_height_feet.laz differ diff --git a/data/set_srs.json b/data/set_srs.json new file mode 100644 index 0000000..6dad031 --- /dev/null +++ b/data/set_srs.json @@ -0,0 +1,11 @@ +{ + "pipeline":[ + "data/lidar_raleigh_nc_spm_height_feet.las", + { + "type":"writers.las", + "filename": "data/lidar_raleigh_nc_spm_height_feet.laz", + "a_srs" : "EPSG:2264", + "compression": "laszip" + } + ] +}