Oh I see, you want to create a surface from your points. Maybe you should have a look at vtkDelaunay2d. This filter can take the polydata we created as input and should provide a triangulated surface like the one you want as output.
Oh I see, you want to create a surface from your points. Maybe you should have a look at vtkDelaunay2d. This filter can take the polydata we created as input and should provide a triangulated surface like the one you want as output.