vtkHierarchicalBoxDataSet bug in VisibilityArrays
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
you must change line 147 of vtkHierarchicalBoxDataSet.cxx in the GenerateVisibilityArrays method. You are using the wrong numDataSets for the loop index. It should be initialized before starting the loop to
numDataSets = this->GetNumberOfDataSets(levelIdx);
to check grids of level "levelIdx" against grids of level "levelIdx+1).
this seems to have fixed all my iso-contour lines problem.