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<TITLE>RE: [vtkusers] error when using vtkMeshQuality filter</TITLE>
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<P><FONT SIZE=2>> I need some help with the vtkMeshQuality filter. My<BR>
> task is to convert nodal values to cell centered values,<BR>
> then convert to a tetrahedral mesh and get the volume<BR>
> of the each cell. I am using the vtkMeshQuality filter.<BR>
> I keep getting "Unable to factor linear system". Any ideas??<BR>
Hmmm. The only place that error message occurs is in<BR>
vtkMath::LUFactorLinearSystem, which vtkMeshQuality does not<BR>
call. Are you using vtkQuadricDecimation anywhere? It calls<BR>
that vtkMath routine. If not, perhaps you have done a partial<BR>
rebuild of VTK and the entry points in a library have changed<BR>
so that vtkMeshQuality is calling the wrong piece of code? If<BR>
you can run your code from the debugger and insert a breakpoint<BR>
right before the "Unable to factor linear system" message is<BR>
printed, having the call stack at that point would really help.<BR>
<BR>
David<BR>
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