[vtkusers] clipping structured points datasets

[Christopher M. Navarro]

I have 2 structured point sets and would like to use the smaller one to 
clip away the unnecessary parts of the 2nd (the 2nd is larger and I only want 
the overlapping regions)....what is the best way to do something like this 
with VTK (4.2.1)?  Is there a simple way to use the bounds of the smaller 
region to clip the larger region?  Thanks.


-chris