[vtkusers] Smooth only boundary edges using vtkSmoothPolyDataFilter

[atisman]

Is there any way to smooth only boundary edges using vtkSmoothPolyDataFilter
or other similar polydata smoothing filters? I know there is
BoundarySmoothingOn() option but it just controls whether the boundary edges
to be smoothed or not and it looks like the interior edges are always
smoothed. I also tried to use SetSource() function to constrain the result
by the input polydata itself. This achieves the result I wanted but the
smoothing operation performs much slower with this input and I'm wondering
if there exist any alternative (faster) ways to smooth only boundary edges.
Thanks!



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