[vtkusers] Field Data Lost

[dsjen at cs.unc.edu]

Hi VTK Users,

I'm having a problem with my field data being lost (at least that's 
what I think is happening).  I'm creating an isosurface based on one 
dataset and coloring the surface based on the scalar values from a 
second dataset.

This all works fine, until I change the volume/region of interest.  My 
beautiful multi-colored isosurface becomes a bland gray isosurface.  
By recreating the pipeline when I update, I am able to change my 
volume of interest, however, when I want the entire volume of interest 
back, I get a gray surface once again.

Please let me knwo if you have any ideas.  Just for reference, I'm 
using Java with Vtk 4.2.

Thanks,
Dennis