[Paraview] Animating 100's of polydata files

[Karl Merkley]

I have several hundred polydata files (currently in .vtp format).  I  
am primarily interested in seeing how the grid structure changes over  
time in each of the files.  The  files are named with a sequential  
number.    How would I go about reading the files and animating this  
kind of morphing grid in Paraview?   I opened the filename..vtp and it  
displays the first file and the Pipeline Browser shows the object as  
filename* but I don't know how to get to the next file in this  
structure.

  I am currently writing the files using a vtkXMLPolyDataWriter so if  
there is an easier way to write the files for animation, I can change  
that also.

   Thanks,
         Karl