[vtkusers] QVTKWidget + volume misbehavior

[Dominik Szczerba]

I am using vtkVolumeRayCastMapper. And yes, I am changing the space from 
default but on UpdateInformation it gets reset from the pipeline during 
Render()ing. Again: my image is not a part of a pipeline only a 
DeepCopy. I did not try changing origin.

Dominik


Kevin H. Hobbs wrote:
> On Thursday 13 November 2008 02:51:57 am Dominik Szczerba wrote:
>> That is exactly what I had thought: no, the image is a DeepCopy of a
>> readers output, so it is not a part of a pipeline. However, updating the
>> pipeline with new spacing "solves" the problem (see my other email). I
>> am wondering if it is not a bug by some chance.
>>
>>
> 
> What volume mapper are you using?
> 
> Are you changing the image spacing from the default {1.0, 1.0, 1.0} to 
> something more realistic?
> 
> I've been trying all of the volume renderers, and I think I saw some evidence 
> that the origin was being ignored.  If it ignores the origin maybe it ignores 
> the spacing too. I think it was the texture 3D mapper.

-- 
Dominik Szczerba, PhD
Computational Physics Group
IT'IS Foundation
http://www.itis.ethz.ch