[Insight-users] changing Center of Rotation for MatrixOffsetTransformBase

[Michael Schildt]

Hello!

I got a rigid transform of an itk registration with a certain center of 
rotation. But for further processing i need to use an other center. Is 
it possible to recompute the matrix of a rigid/affine transform for a 
different center? Because, just setting a new center will result in a 
different transform.

Here are some numbers:

TransformMatrix = -0.0183916 0.938708 -0.344223 -0.0411616 -0.3447 
-0.93781 -0.998983 -0.00307907 0.0449783
Offset = 5.64609 -44.9436 -0.107986
CenterOfRotation = 1.09089 6.36365 -2.33333

I need to have a new center at [127.5, 127.5, 127.5].

Any hints are welcome :)


Best reguards,
    Michael Schildt