bug in vtkGeometryFilter

[Rainer Sabelka]

Dear VTK developers,

when the vtkGeometryFilter (from the latest nightly release) gets an
unstructured grid on its input that contains no cells it causes a
segmentaion violation. This happens because the local var Connectivity
is NULL in vtkGeometryFilter::UnstructuredGridExecute().
I'll attach a suggestion for a fix.

Regards,
Rainer


--- vtk.old/graphics/vtkGeometryFilter.cxx      Wed Apr 12 20:17:11 2000

+++ vtk/graphics/vtkGeometryFilter.cxx  Wed Apr 12 20:17:46 2000
@@ -515,6 +515,7 @@
 {
   vtkUnstructuredGrid *input= (vtkUnstructuredGrid *)this->GetInput();
   vtkCellArray *Connectivity = input->GetCells();
+  if(Connectivity==NULL) return;
   int i, cellId;
   int allVisible;
   int npts, *pts;



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