GeoJson
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Flat vs. Sphere
GeoJSON: Point
Example:
{ loc : { type : "LineString" , coordinates : [ [ -0.09, 51.49 ], [ 2.35, 48.86 ] ] } }
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GeoJSON is a format for encoding a variety of geographic data structures.
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Used by various other HTML APIs as well: OpenLayers, Leaflet and through GDAL also PostGIS.
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Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon and GeometryCollection.