[Paraview] Difference between "Compute Derivatives" and "Gradient (Unstructured)"...

[Moreland, Kenneth]

> So its possible to change the gradient-filter to get a speedup? - nice.
> Please let me know when this change is checked in into the cvs-version
> of paraview - i will check it here again.

When I sent out my original email, I had already checked into CVS the
gradient filter optimization.  This morning I checked in another change that
allows you to run a faster but less accurate algorithm to get the point
gradients.

-Ken

   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********  
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel