[vtkusers] smoothing an isosurf

[Randy Heiland]

I have an isosurface that's basically half a donut, but has tiny, sharp feature
edges that I'd like to smooth out.  I've tried the vtkSmoothPolyDataFilter on
it, but am still not satisfied.  I've attached a couple of images to
demonstrate.  What other options would people suggest?  (I also tried
decimating the smoothed filter results, but still no joy).

thanks,
--Randy