private static CoordinateTransformation Geog2Proj(GeographicCoordinateSystem source, ProjectedCoordinateSystem target)
{
if (source.EqualParams(target.GeographicCoordinateSystem))
{
var mathTransform = CreateCoordinateOperation(target.Projection,
target.GeographicCoordinateSystem.HorizontalDatum.Ellipsoid, target.LinearUnit);
return(new CoordinateTransformation(source, target, TransformType.Transformation, mathTransform,
string.Empty, string.Empty, -1, string.Empty, string.Empty));
}
// Geographic coordinatesystems differ - Create concatenated transform
var ct = new ConcatenatedTransform();
var ctFac = new CoordinateTransformationFactory();
ct.CoordinateTransformationList.Add(ctFac.CreateFromCoordinateSystems(source, target.GeographicCoordinateSystem));
ct.CoordinateTransformationList.Add(ctFac.CreateFromCoordinateSystems(target.GeographicCoordinateSystem, target));
return(new CoordinateTransformation(source,
target, TransformType.Transformation, ct,
string.Empty, string.Empty, -1, string.Empty, string.Empty));
}