[vtkusers] Q: Using center of cell with vtkExtractGeometry

[Sebastian Bade]

Hello all,

instead of using the cell geometry (aka: the points defining the cells) I
would like to use the centers of the cells as criterion to extract geometry.
That is: all Cells with their center inside of a box (e.g.: vtkPlanes) shall
be extracted.

Are there any ideas how to relize that?

Thanx
Sebastian