[vtkusers] vtkLandmarkTransform help

[Theodore Papatheodorou]

Hi,
I am trying to do a landmark registration using the vtkLandmarkTransform 
and it is not working correctly. I use dummy data which I manually 
translate, then pass it through the filter and see if the correct 
translation matrix is returned. Indeed it is! However, whenever I try to 
do the same with a scaling it does not return the correct scaling. It 
also has problems with affine transforms. Basically whenever the filter 
has to deal with 9 or 15 degrees of freedom it returns some very strange 
results.
Has anyone noticed it before and/or know what causes it? Is it a bug?
tp