Matrix3 -> Quaternion & Quaternion -> Matrix3 (must support reflection)

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Hello, do you know about any robust library which supports conversions between rotation matrix and quaternion?
I have found any using google, but these does not support reflections.
Also it should be able to ortho-normalize rotation matrix.

Thanks in advance.

Posted 6-Aug-13 20:33pm

Dusan Paulovic

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The_Inventor 7-Aug-13 22:07pm

There are no specific robust libraries per say. However if you search this site for OpenGL type programs, and then search carefully within the code, (Your results will vary quite a bit) but look for clearly written and commented code that is matrix related, they may even have a class or structure developed already.

If you search this site in the graphics area, OpenGL, there is one that create classes using 3DMath. In those files are routines that can handle the matric calculations you may want to do.

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