[vtkusers] Clipping Sufaces With Constant Value Surfaces

[D.M.P.Davies]

Hello vtkUsers,

 Does anyone know if it is possible to clip an unstructured grid
boundary with surfaces of two contour values and combine  the clipped
edges (say with thresholding) to give a solid looking  bounded set of
polygons?

It's the boundary clipping that seems the difficulty.

Many Thanks

Dave (Davies)