[Chimera-users] angles after match

Dear all, thank you for the very nice software. I continuously like it. I have the following problem. For different molecules, I would like to know what are the transformation that link them. I can do for example match #0 #1 matrixget - From this matrix I have the rotation information and the translation information. I would like to extract the angles. For that I need to know what convention you used. I guess those are Euler angles (?), but I need to know what is the order of rotation xyz, xzy... Finally how do you get ride of the gimbal lock problem if you use Euler angles. Thank you for your constant help. (Sorry if this question is a duplicate) many greetings julien