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

[Tijmen Klein]

I am now using the addClippingPlane() member of the mapper, which seems to
be doing exactly what I want. Since this is not for calculations, but only
for the visualization, doing this in the mapper phase seems to be the right
thing. However, I'm having some issues with the rendering of this. Will post
this in a separate thread.

Tijmen

On Mon, Jul 18, 2011 at 11:03 AM, Tijmen Klein <T.R.Klein at student.rug.nl>wrote:

> 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
>> > _______________________________________________
>> > Powered by www.kitware.com
>> >
>> > Visit other Kitware open-source projects at
>> > http://www.kitware.com/opensource/opensource.html
>> >
>> > Please keep messages on-topic and check the VTK FAQ at:
>> > http://www.vtk.org/Wiki/VTK_FAQ
>> >
>> > Follow this link to subscribe/unsubscribe:
>> > http://www.vtk.org/mailman/listinfo/vtkusers
>> >
>> >
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20110718/a3a8eb50/attachment.htm>