All, I want to try to read some point arrays in the Programmable Filter and take action based on whether or not the arrays have been loaded into Paraview. I am pretty lost in the PF, so take that for what it's worth.
If I try something like try: displ=block.PointData['DISPL'] Print displ except: Print 'DISPL read failed' else: Print 'DISPL read succeeded' The try never fails - it always prints "DISPL read succeeded, whether I actually loaded the DISPL array or not. If I print displ, I get an array of values if I loaded the DISPL array into Paraview and a vtk.numpy_interface.dataset_adapter.VTKNoneArray object if I haven't loaded the array. Not to be too dense, but how do I test to see if I got an array or a VTKNoneArray object? Thanks Dennis
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