[vtkusers] Clipping uniform rectilinear grid without going to unstructured grid

[Tijmen Klein]

As far as I know, the extract VOI filter can only be used for rectangular
regions? My clipping plane will be positioned in ways that the output will
not be rectangular. I've looked in the vtkShepardMethod to sample the output
of the vtkClipPolyDate onto a structured grid, I think that this will be the
easiest way to achieve my goal?

Tijmen

On Wed, Jul 13, 2011 at 10:44 PM, Dominik Szczerba <dominik at itis.ethz.ch>wrote:

> Have you tried the extract VOI filter?
>
> Dominik
>
> On Wed, Jul 13, 2011 at 6:17 PM, Tijmen Klein <T.R.Klein at student.rug.nl>
> wrote:
> > I have a volume that I currently render using the GPU-based volume
> renderer.
> > Now I want to clip (using a plane) this volume, and render the output
> (again
> > using the CPU-based volume renderer). However, the problem is that the
> > clipping transforms the data into a unstructured grid, which limits me to
> > using a CPU based renderer.
> > Is it possible to use a clipping algorithm that outputs a rectilinear
> grid?
> > I know that vtkClipPolyData will create new cells, but I'm not interested
> in
> > that. Is this possible?
> > Cheers,
> > Tijmen
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