[vtkusers] Cropping with VolumePro

[Lisa S. Avila]

Hello Marko,

We have encountered clipping problems with the VolumePro 500, but we have 
not (recently) encountered problems with cropping.  One test you might want 
to try is to download the evaluation copy of VolView, load in your volume, 
and play with the cropping. You can toggle between standard (ray casting / 
texture mapping) rendering and VolumePro rendering. If you can reproduce 
the problem in VolView, then let me know the size and type of your data and 
I will try the same experiment here, and perhaps pass it along to TeraRecon.

Lisa



At 04:33 PM 7/18/2002, Marko Rosenmueller wrote:

>Hi vtkusers,
>
>
>
>i have some problems to do cropping with a VolumePro500. I have already 
>implemented cropping with software-raycasting but when I switch to the 
>VolumePro-Board I only get a black window. Without cropping all works fine.
>
>
>
>To enable cropping i do :
>
>
>
>m_pVolumeMapper->SetCropping(TRUE);          //m_pVolumeMapper is a 
>vtkVolumeProMapper*
>
>m_pVolumeMapper->SetCroppingRegionFlagsToSubVolume();
>
>m_pVolumeMapper->SetCroppingRegionPlanes(100,200,100,200,100,200);
>
>
>
>The center of my volume is at (150,150,150) and with Software-Raycasting 
>the crop-volume is as expected around the center.
>
>
>
>I also tried SetSubVolume:
>
>((vtkVolumeProMapper*)m_pVolumeMapper)->SetSubVolume(100,200,100,200,100,200);
>
>
>
>But this did not have an effect at all, the whole volume is rendered. Has 
>the SubVolume rendering to be enabled? But How?
>
>
>
>Has anybody an idea?
>
>
>
>
>
>Thanks in advance,
>
>Marko
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