[vtkusers] python-vtk volume rendering issue

[Aashish Chaudhary]

Dear Robert,

Have you tried different datasets? Also, what version of VTK you are using
(and what OS?). If no one beats me to it, I will have
a look at the test data in next 1-2 days.

Thanks,



On Sun, Jan 26, 2014 at 2:48 PM, Robert Thompson <rthompson at physics.unlv.edu
> wrote:

> Hi everyone,
>
> I'm having an odd issue volume rendering data with python-vtk.  Everything
> seems to work fine when I use an isolated script, but when I try and
> implement the vtk calls in a function/class it produces some odd results.
>  From what I can tell everything is happening in the same order between the
> two methods, but as you can see by this pic they don't come close to
> matching:
>
> http://i.stack.imgur.com/6vjM9.png
>
> I've uploaded a small dataset & the scripts I am using to produce the two
> above plots.  The link below contains two scripts: n2vtk.py is the isolated
> rendering call (left pic), and volume.py is the script calling classes &
> methods from newvisualizer.py which produces the weird results (right pic).
>
> ~900kb:
> https://dl.dropboxusercontent.com/u/6920345/VTKquestion.tar.gz
>
> I've rendered point particles, spheres, and text with the method shown in
> newvisualizer.py before with great success so I'm not sure why the volume
> rendering is behaving differently.  Any help would be greatly appreciated!
>
> -Robert Thompson
>
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-- 
| Aashish Chaudhary
| R&D Engineer
| Kitware Inc.
| www.kitware.com
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