[vb]How to get local 2D coordinates of vertices of polygon in 3D

1. http://stackoverflow.com/questions/26369618/getting-local-2d-coordinates-of-vertices-of-a-planar-polygon-in-3d-space

2.https://github.com/Kitware/VTK/blob/master/Common/DataModel/vtkPolygon.cxx

int vtkPolygon::ParameterizePolygon(double *p0, double *p10, double& l10,
double *p20,double &l20, double *n)