LDCad 1.6 suggestions/plans

[Roland Melkert]

EDIT:
Oops, just saw you already found a solution.. I have not yet studied your formulas, but I have not seen a check condition for the +/-90 degrees singularity. Have you checked the rotation matrix 0 -1 0 1 0 0 0 0 1?

It gives x=0 y=0 z=90.

I applied this document in the extraction function.

I just needed to switch the matrix col/rows (due to OpenGL). And flipped the resulting angle signs to compensate for the minor differences in building the matrix in the first place as dictated by the ROTSTEP spec.

edit: used the wrong matrix to test, xyz values corrected.