[vtkusers] Highlight a surface of a CAD geometry

[Laibin Cong]

Hi all,
   
  I am trying to use vtk to display a CAD geometry and run into a problem of highlight a surface of a geometry. The geometry is simply a cube,  I created a POLYDATA dataset which is consisted of all the tessellation points of the cube. By filtering out only the free edges of the dataset, the 6 edges of the cube were nicely displayed. I want to highlight one or some of the 6 faces of the cube, my idea is first filter out the face to be highlight, then highlight (maybe simply using different color), but I couldn't be able to find an appropriate class to filter out each of the face. Any idea that I could try? Thanks for your help. 
   
  Regards,
  LB
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