[vtkusers] Slight Result Difference with vtkPCAStatistics

[Wenlong Wang]

Dear all,

I'm using vtkPCAStatistics to analysis the principle directions of a set of
3D points. I ran the PCA with world coordinates and display coordinates of
the same set of points. However, ther result shows that there is always
about 0.2 degree difference. During the test, my camera remains the default
settings.

My question is, is this difference caused by bug or it just should be in
this way?

Thank you very much.

Best wishes
Long
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20111114/9ceb2433/attachment.htm>