[vtkusers] Constrained Delaunay triangulation

[David Doria]

The documentation says you can specify a second polydata to act as a
constraint boundary. I tried to do this here:

http://www.vtk.org/Wiki/Constrained_Delaunay_Triangulation_%282D%29

However, it doesn't seem to do anything different than the unconstrained
version.

http://www.rpi.edu/~doriad/VTK_List/ConstrainedDelaunay/unconstrained.pngshows
the result of the normal triangulation (actually - while we are here,
why is there a missing triangle/chunk missing out of the bottom right
corner?)

The constrained version looks identical (using both a CW and CCW loop).

Here (an excerpt from the above link) is how I setup the filter:

  vtkSmartPointer<vtkDelaunay2D> delaunay =
vtkSmartPointer<vtkDelaunay2D>::New();
  delaunay->SetInput ( Polydata );
  delaunay->SetSource (Boundary);
  delaunay->Update();

Anyone know what the problem might be?

Thanks,

David
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