[vtkusers] extracting the polygonal model from a vtkMarchingCubeFilter

[Goodwin Lawlor]

Use vtkVectorDot to get the dot product of the normal of each face and and the normal to the view plane... then extract the polydata based on scalar connnectivity.

Goodwin
University College Dublin

ps Just searched the list archive: http://public.kitware.com/pipermail/vtkusers/2001-April/005942.html ... knew I heard it before.
  ----- Original Message ----- 
  From: sagi schein 
  To: vtkusers at public.kitware.com 
  Sent: Thursday, April 18, 2002 8:25 AM
  Subject: [vtkusers] extracting the polygonal model from a vtkMarchingCubeFilter


  My problem is to identify silhouette edges in a model that was created by vtkMarchingCubeFilter - to do that I want to traverse the faces and identify the edges that connect between front facing and back facing faces.

  Any ideas?

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