[vtkusers] extracting imageData from volume in a plane

[Karnowski, Thomas Paul]

Hello,

I have a volume I've read from a file and I am using a vtkPlane as a
clipping plane during visualization.  I use a vtkImplicitPlaneWidget to
place an arbitrarily positioned slice through the volume, and this works
great.  Now I need to use the plane information (origin and normal) to
extract an image of this plane.  I can't seem to figure out how to do
this.  Can anyone help me?  It seems like vtkProbeFilter  is close to
what I wanted, but I want to output image data that I can write to a
file, not polydata.

I've googled & looked through the documentation and can't seem to find
an answer to this...it seems like a pretty straightforward thing but
again my searching has come up short.

Regards,
Tom Karnowski