[vtkusers] Bug in vtkPImageWriter?

[Kevin H. Hobbs]

I think there is a bug in vtkPImageWriter that causes it to not actually
limit the size of the pipeline. I tried the attached with image size
500x500x500 and the memory usage was more than a gigabyte. I tried an
image size of 1000x1000x1000 and got:

ERROR: In /home/kevin/kitware/VTK/Common/vtkDataArrayTemplate.txx, line 106
vtkDoubleArray (0x5231a0): Unable to allocate 1000000000 elements of size 8 bytes.

ERROR: In /home/kevin/kitware/VTK/Filtering/vtkImageData.cxx, line 2100
vtkImageData (0x520690): Coordinate (0, 0, 0) out side of array (max = -1

ERROR: In /home/kevin/kitware/VTK/Filtering/vtkImageData.cxx, line 2100
vtkImageData (0x520690): Coordinate (999, 999, 999) out side of array (max = -1

Segmentation fault

This doesn't sound like streaming to me. The existing test for the
writer uses only a small image needing only a hundred kilobytes or so
which could not detect the problem.


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