[vtkusers] vtkImageData & tensors & filters

[Alexandre Guimond]

Hi.

I'm dealing with tensors that are organized on what the vtk user's
guide calls "structured points", ie a rectangular, evenly spaced
grid.  Hence, I'm placing them in a vtkImageData.

A few operations that I need to do on tensors are generalizations to
tensors of filters that exist in the imaging toolbox for scalars.
Examples of this are mathematical operations or shrinking.

What I'm wondering now is if I should write new filters for tensors or
extend the vtk ones.  It's obviously not worth it for me to extend the
vtk ones if vtk is not willing to use the modifications.  Hence the
question: would the vtk folks be interested in code that generalizes
of a few imaging classes to cope with tensors, or is the goal to only
deal with scalar data in image filters?  That also implies a few
modifications to vtkImageSource, etc. for memory allocations
purposes, etc.
-- 
Alexandre Guimond, Ph.D. guimond at bwh.harvard.edu Phone:(617) 278-0800 
http://spl.bwh.harvard.edu:8000/~guimond/          Fax:(617) 264-5154
Brigham and Women's Hospital, Harvard Medical School
CNI, RF396, 221 Longwood Av, Boston, MA 02115