[vtkusers] How to get contour points of vtkCutter

[Thiha Oo]

Hi,
  I want to know how to get all the points of the contour generated by the
vtkCutter that cuts a 3D polydata with plane.
  If the cut generate only one close contour, it is OK.
  However, if the cutter cut the polydata (mesh) and generates two or more
contours on that cutting plane, how can I get the contour points correctly?

Thanks and regards,
Thiha
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