[vtk-developers] Wiki example strangeness

[David Cole]

This example:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/CurvatureBandsWithGlyphs

Clearly contains:
renWin->SetSize(800, 800);

Why, then does the alternate valid image 
"Testing/Baseline/Visualization/TestCurvatureBandsWithGlyphs_1.png" [1] 
in the VTK wiki examples git repository have dimensions 800 x 771? Why 
is an image of a different size considered valid?

And ..... why are the images so different? Shouldn't the randomly 
generated images seen in this example be identical because of random 
seeding? Compare to the primary baseline image at [2].


Thanks for any insight,
David C.


[1] 
https://gitorious.org/vtkwikiexamples/wikiexamples/source/09a4920a453052c36ad08d2994565dbec73a2107:Testing/Baseline/Visualization/TestCurvatureBandsWithGlyphs_1.png
[2] 
https://gitorious.org/vtkwikiexamples/wikiexamples/source/09a4920a453052c36ad08d2994565dbec73a2107:Testing/Baseline/Visualization/TestCurvatureBandsWithGlyphs.png