[vtkusers] vtkGPUVolumeRayCastMapper and vtkImageChangeInformation

[Bartosz Wiklak]

Hi, I also figured out that setting zspacing less than zero ( i used
it to reverse slices order - Don't Do It Alone! ) resulted in this
error.

2cts
Bartek

On Sat, Apr 10, 2010 at 10:02 AM, Mathieu Malaterre
<mathieu.malaterre at gmail.com> wrote:
> I have also had issue with large value of z-spacing in the past. See:
>
> http://www.vtk.org/Bug/view.php?id=9306
>
> Set Z-Spacing to 1 it should fix the symptom...
>
> On Fri, Apr 9, 2010 at 9:50 AM, Bartosz Wiklak <bwiklak at gmail.com> wrote:
>> Hi,
>> I'm using the latest cvs version of vtk (compiled yesterday).
>> I have an image data from dicom reader and use
>> vtkImageChangeInformation to change output spacing information.
>> Then I connect it to vtkGPUVolumeRayCastMapper :
>> volumemapper->SetInputConnection(changer->GetOutputPort());
>>
>> After this I don't see any volume, if I don't change spacing and still
>> use changer I can see a volume. Fixed point raycast works ok.
>>
>> Why is it so?
>>
>> Bartek
>> _______________________________________________
>> 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
>>
>
>
>
> --
> Mathieu
>