public Geometry GetResultGeometry(SpatialFunction opCode)
{
Geometry result = null;
bool isSuccess = false;
ExceptionDispatchInfo savedException = null;
try
{
// try basic operation with input geometries
result = OverlayOp.Overlay(_geom[0], _geom[1], opCode);
bool isValid = true;
// not needed if noding validation is used
// boolean isValid = OverlayResultValidator.isValid(geom[0], geom[1], OverlayOp.INTERSECTION, result);
// if (isValid)
isSuccess = true;
}
catch (Exception ex)
{
savedException = ExceptionDispatchInfo.Capture(ex);
// Ignore this exception, since the operation will be rerun
}
if (!isSuccess)
{
// this may still throw an exception
// if so, throw the original exception since it has the input coordinates
try
{
result = SnapOverlayOp.Overlay(_geom[0], _geom[1], opCode);
}
catch (Exception)
{
savedException.Throw();
}
}
return(result);
}
/// <summary>
///
/// </summary>
/// <param name="g0"></param>
/// <param name="g1"></param>
/// <param name="opCode"></param>
/// <returns></returns>
public static Geometry Overlay(Geometry g0, Geometry g1, SpatialFunction opCode)
{
var op = new SnapOverlayOp(g0, g1);
return(op.GetResultGeometry(opCode));
}
