2008-02-29 14:27:49 UTC
The coordinate system I described is a RIGHT handed system! Thinking of an airplane, X forward through the nose, Y out the right wing - when you cross X into Y - fingers of the right hand start at X and curl into Y - your thumb is DOWN. If this software package uses a coordinate system as you describe and forces you to use only Euler angles, I hope you didn't pay good money for it. I recommend you dump it immediately.
Good Luck.
Noel Hughes