[vtkusers] Problem extracting multiple planes using vtkCutter and vtkPlanes/vtkImplicitBoolean

[Ben Held]

I am trying to extract multiple cut planes from an unstructured mesh using
vtkCutter.  I have tried using vtkPlanes and also vtkImplicitBoolean (union)
and I always only get the first plane out.  Should i expect this to work?
In case it matters, the planes all have the same normal, but just different
origins (points).

Thanks,
Ben