Hi,
> Since the original version of the function rt_ell_brep() just implements the
> scaling, so it can only deal with ellipsoids(as well as spheres) centered at
> the origin and with A, B, C set along the X, Y, Z axis respectively. So I add
> rotation and translation to it, using affine transformations. Now it can deal
> with all ellipsoids.
> I'm going to modify rt_hyp_brep() with the similar problems.
> I have made some changes to the original patch. I use MAT3X3VEC to do the
> calculation, and I also make some changes to the transformations as well.
I have finished the patch on three functions: rt_ell_brep(), rt_ehy_brep() and
rt_hyp_brep(). Rotation and translation matrices are applied so that it can
deal with all primitives of that kind. They are together in one patch. See
http://sourceforge.net/tracker/?func=detail&aid=3513288&group_id=105292&atid=640804
Lots of advises and suggestions are welcomed.
Cheers!
Wu Jianbang
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