[Insight-developers] SymmetricSecondRankTensor PreMultiply and PostMultiply

[Casey Goodlett]

Hi Luis,

I tried to refactor some of my DTI code, which relies on reorientation
of diffusion tensors, to use the PreMultiply and PostMultiply routines
which have been added to SymmetricSecondRankTensor.  Unfortunately, I
am concerned that the API for these methods is flawed.  The problem is
that both of these methods return a symmetric tensor, but pre or post
multiplication of a symmetric tensor by a rotation matrix does not
result in a symmetric tensor.

I have logged details and a potential fix in
http://public.kitware.com/Bug/view.php?id=8574

Thank you

Casey Goodlett