Hi!
I want to display isosurfaces of values I compute in my filter, so looking at
vtkContourFilter, I got the idea to use the vtkSynchronizedTemplates3D (as my
filter is going to handle 3D ImageData).
I have a vtkSynchronizedTemplate3D as an instance of my filter, in the
constructor it´s initialized and then I do the following:
this -> SynchronizedTemplates3D -> SetInput(TauSet);
this -> SynchronizedTemplates3D -> ComputeNormalsOff();
this -> SynchronizedTemplates3D -> ComputeGradientsOff();
this -> SynchronizedTemplates3D -> SetComputeScalars(1);
this -> SynchronizedTemplates3D -> SetNumberOfContours(1);
this -> SynchronizedTemplates3D -> SetValue(0, TauValue);
int ext[6];
inInfo -> Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(), ext);
this -> SynchronizedTemplates3D -> ThreadedExecute(TauSet,inInfo,outInfo,ext,
TauValues);
It does compile, but running I get an segmentation fault, debugging and
backtracing I get:
#0 0x00007f42ffc5eb10 in ContourImage<double> () from
/home/happenhofer/Paraview/build-svn/bin/libvtkGraphics.so.pv3.4
#1 0x00007f42ffc5a308 in vtkSynchronizedTemplates3D::ThreadedExecute () from
/home/happenhofer/Paraview/build-svn/bin/libvtkGraphics.so.pv3.4
#2 0x00007f4309195f06 in vtkTauFilter::RequestData () from
/home/happenhofer/Paraview/build-svn/bin/libvtkPVFilters.so
vtkTauFilter would be my filter, so the error occurs in ContourImage<double>.
Does anyone have an idea even how to find the problem? That would be a great
help..
and just in general - calling ThreadedExecute would execute the
SynchronizedTemplate filter and return a grid with the isosurface computed,
does it not? or do I have to specifiy the output somehow?
thx a lot,
Natalie Happenhofer
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