because i want to use vtkPolygon::PointInPolygon method to check if a point in the close polygon. -- View this message in context: http://vtk.1045678.n5.nabble.com/how-to-convert-vtkPolyData-to-vtkPolygon-tp5609757p5609758.html Sent from the VTK - Users mailing list archive at Nabble.com.