Obtaining angles from rotation matrix

[Abhishekc95]

I have obtained rotation matrix from neper tessellation files, but i need to convert to angles in sequence of ZXY (first rotation about local z then local x and then y).
or is there anyway i can convert other ori formats to ZXY sequence.
Im trying input these angles to element orientation in Ansys apdl software.
i apologize in advance as this question is not related directly to neper.

[rquey]

This is not a known convention to me, and not implemented in Neper. You'll have to find the formulae to go from the rotation matrix to the angles.

[Abhishekc95]

Just for clarification, from the discussion page I got to know that each row in the rotation matrix represents vectors parallel to the crystallographic axes. how does neper calculate this matrix.

[rquey]

I can only point you to Orilib's documentation, https://sourceforge.net/projects/orilib.

[Abhishekc95]

thanks a lot