Vtk/Python imageWarp.py example

[David Gobbi]

Hi Dean,

The VTK/Python bug you describe has been around, at least on my
system, since vtk 2.3 or thereabouts).  It has been reported two or
three times.  Several of the examples in graphics/examplesPython are
afflicted.  The bug is not present under Windows, only UNIX.

The symptoms are: an empty window pops up, and clicking in the
window results in a segfault.

An easy work around is to add "renWin.Render()" immediately
before "iren.Start()".

 - David

--David Gobbi, MSc                    dgobbi at irus.rri.on.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Fri, 8 Oct 1999, Dean N. Williams wrote:

> Dear Vtk community,
> 
>     I am developing Vtk visualization using the Python interface and
> PC/Linux Red Hat 5.2.
> 
>     I am noticing that certain Vtk/Python scripts are not working. For
> example: imageWarp.py
>     just sits at the prompt and does not core dump or display a canvas
> with an image.
> 
>     Other do nothing Vtk/Python scripts are: thrshldV.py, spToPd.py, and
> officeStreamPoints.py
> 
>     Has anyone else using Vtk/Python run across this same problem, and
> how did you fix it?
> 
>     Thanks in advance.
> 
> Best Regards,
>         Dean
> 
> 
> --
> Dean N. Williams
> Computer Scientist/Computation Group Leader             o
> Lawrence Livermore National Laboratory                --
> Livermore, California 94550                          `\< *
> Phone: (925) 423-0145    FAX: (925) 422-7675        /  \
> http://www-pcmdi.llnl.gov                         williams13 at llnl.gov
> 
> 
> 
> 
> 
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