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This issue was created automatically from an original Mantis Issue. Further discussion may take place here.

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Hello, We are using a nightly build from Dec 31. We read in a structured grid using the strucutred grid reader and then do a deepcopy to a structured grid and then pass the strucutred grid to vtkStreamLine and the code dumps a core. If we don't do a deepcopy the streamline function works fine. The following is the output from the core:

vtkDataArrayTemplate<unsigned char>::GetValue(int)

Called from:

in vtkUnsignedCharArray::GetValue(int) in vtkStructuredVisibilityConstraint::IsVisible(int) in vtkStructuredGrid::IsCellVisible(int)

If this problem has already been fixed please let me know and we will update our builds. Thanks for any help.

Doug