[vtkusers] surface warping/expansion

[Dean Inglis]

I have a triangulated surface with inverted ridges or "canyons"
for lack of better terminology, that when vtkWarpVector
is applied it generates self-intersecting triangles.  I am
trying to create an offset surface but this approach yields
unusable results.  Is there a processing or pipeline strategy that
could essentially fill in the "canyons", something like a localized
convex hull, prior to the warping?

- Dean
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