[ITK] [ITK-users] reference for setting versor components

[Andrew Harris]

Hello,
I'm hoping someone has a reference that will allow me to convert from a 3X3
rotation matrix to a 3-member versor rotation for the purposes of setting a
known rotation about one axis as an initialization.  For instance, if I
wanted the equivalent of a 10 degree rotation about the x-axis, I can build
a 3X3 rotation matrix using sines and cosines, but the project I'm working
on is using VersorRigid3DTransform as the transform type for the
registration, so I'd like to use that for the initial transform.

Any help is appreciated, thanks.

--

AH


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