problems with vtkContourTriangulator and vtkContourLoopExtration

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Hello,
after some more try & error i got the vtkContourTriangulator working in a way, where it is triangulating all my layers.
I want to share my code, even there are probably muuuch better approaches :-).
Steps are:

  • vktCleanPolyData with minimal tolerance
  • vtkCutter with vtkPlane on the layerHeight
  • vtkStripper
  • vtkContourTriangulator
  • check if it has errors
    • if so: rotate around zAxis and triangulate again until no errors or until 360°
      - if rotation > 360° use vtkCleanPolyData again with a higher tolerance
      - rotate and triangulate again => if still errors until rotation > 360 => exception
  • rotate back
  • vtkFeatureEdges

CMakeLists.txt (755 Bytes)
contourTriangulatorTest.cxx (8.7 KB)
bd.vtp (154.0 KB)
PS: the polyData’s 3D file is from Microsoft (Bulldozer.3mf)

regards
philipp