[vtkusers] GetFieldData segfaults

[Berk Geveci]

Maybe the polydata pointer is invalid? Or maybe there is some issues
with using smart pointers. Try this:

vtkFieldData* FieldData = polydata->GetFieldData();

where polydata is not a smart pointer.

-berk

On Thu, Apr 23, 2009 at 12:29 PM, David Doria <daviddoria at gmail.com> wrote:
> With some models, the following call causes a segmentation fault:
> vtkSmartPointer<vtkFieldData> FieldData = polydata->GetFieldData();
>
> I was originally calling
> vtkSmartPointer<vtkDoubleArray> ScannerLocationArray =
> vtkDoubleArray::SafeDownCast(polydata->GetFieldData()->GetArray("ScannerLocation"));
>
> but I thought the ->GetArray() might be failing if GetFieldData returned
> null, so I tried to get the entire field data, and it still crashes.
>
> Any thoughts?
>
> Thanks,
>
> David
>
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