2011/5/21 Kent A. Reed <knbr...@erols.com> > Andrew: > True, true. But I note that the functions like pmQuatZyzConvert are > marked "FIXME - - need direct equations"". In mathematics, the two > approaches (one conversion or two concatenated conversions) are > equivalent. In computer math, not so much. It may make no practical > difference for Viesturs' application but I like the direct approach. > > I have seen those FIXME notes, but I believe that rotation matrix is very "reliable" representation of rotation. I do not see another reasonable way for the conversion. Last three years I work with vectors and matrices in real earnest, but since I do not have _really serious_ background in math, I might be wrong. If you have some other idea on that conversion, please share it with us.
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