[vtkusers] Interpolating point on a surface

[Kenneth Porter]

--On Wednesday, January 20, 2010 11:48 AM -0500 David Doria 
<daviddoria+vtk at gmail.com> wrote:

> Ah, I believe this is a perfect demo of vtkProbeFilter (that I've been
> looking for for a while now). I've updated the example, but it still
> doesn't work - if you can figure out how to get the data out of the probe
> you should be good to go. Please let us know if you do.

Thanks. I saw an earlier pointer in a thread in that direction but the 
thread seemed to fizzle out. I'll see if I can figure out how this works.