public CoordinateConverter(string _projection)
{
try
{
CoordinateSystemFactory csFactory = new CoordinateSystemFactory();
CoordinateSystem = csFactory.CreateFromWkt(_projection);
CoordinateTransformationFactory ctFactory = new CoordinateTransformationFactory();
XYToLonLatTransform = ctFactory.CreateFromCoordinateSystems(CoordinateSystem, WGS84).MathTransform;
LonLatToXYTransform = ctFactory.CreateFromCoordinateSystems(WGS84, CoordinateSystem).MathTransform;
XYToWebTransform = ctFactory.CreateFromCoordinateSystems(CoordinateSystem, WebMercator).MathTransform;
WebToXYTransform = ctFactory.CreateFromCoordinateSystems(WebMercator, CoordinateSystem).MathTransform;
} catch (Exception ex)
{
if (_projection.ToLowerInvariant().Contains("web_mercator"))
{
CoordinateTransformationFactory ctFactory = new CoordinateTransformationFactory();
LonLatToXYTransform = ctFactory.CreateFromCoordinateSystems(WGS84, WebMercator).MathTransform;
XYToLonLatTransform = LonLatToXYTransform.Inverse();
}
else
{
throw ex;
}
}
}
public double[] ConvertLatLonToXY(LatitudeLongitude latLon)
{
try
{
double[] lonLatPoint = { latLon.Longitude, latLon.Latitude };
return(LonLatToXYTransform.Transform(lonLatPoint));
} catch (Exception ex)
{
return(new double[] { double.NaN, double.NaN });
}
}
