Hi,
In 3.12 when volume rendering on image data I'm experiencing segfaults
in vtkVolumeRayCastSpaceLeapingImageFilter in
vtkVolumeRayCastSpaceLeapingImageFilterMinMaxExecute. The issue seems to
be that vtkImageData::ComputeIncrements relies on active scalars being
set. However, for use with ParaView I don't think this can be
guaranteed. for instance how would an object that produces multiple
arrays, eg a reader, correctly set active scalars?
A quick fix is below, the real fix probably is quite a bit more involved.
bug filed http://www.paraview.org/Bug/view.php?id=12842
---
ParaView-3.12.0-base/VTK/VolumeRendering/vtkVolumeRayCastSpaceLeapingImageFilter.cxx
2011-11-08 12:56:45.000000000 -0800
+++
ParaView-3.12.0/VTK/VolumeRendering/vtkVolumeRayCastSpaceLeapingImageFilter.cxx
2012-01-05 16:34:06.217415840 -0800
@@ -801,6 +801,10 @@
return;
}
+ // FIXME --- this keeps things running smoothly when active scalars
+ // are not set but modifies the input
+ inData[0][0]->GetPointData()->SetScalars(this->GetCurrentScalars())
+
const int components =
this->GetCurrentScalars()->GetNumberOfComponents();
const unsigned int nComponents = (this->GetIndependentComponents())
? components : 1;
_______________________________________________
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 ParaView Wiki at:
http://paraview.org/Wiki/ParaView
Follow this link to subscribe/unsubscribe:
http://www.paraview.org/mailman/listinfo/paraview
