Coordinate compression based on https://developers.google.com/maps/documentation/utilities/polylinealgorithm inspiration taken from https://github.com/mapbox/polyline
Supports GeoJSON.NET LineString and Position
// [38.5, -120.2] with default precision (5)
PolyLineEncoder.Encode(new Position(38.5, -120.2));
"_p~iF~ps|U"// [[38.5, -120.2], [40.7, -120.95], [43.252, -126.453]]
var lineString = new LineString(new List<Position>()
{
new Position(38.5, -120.2),
new Position(40.7, -120.95),
new Position(43.252, -126.453),
});
PolyLineEncoder.Encode(lineString);
->
"_p~iF~ps|U_ulLnnqC_mqNvxq`@"