RhinoCommon API
Point2d Constructor (Point3d) | 
Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll)
Parameters
- point
 - Type: Rhino.GeometryPoint3d
The point that will be used: the Z (third) coordinate is discarded. 
Point2d Constructor (Point3d) | 
Namespace: Rhino.Geometry