Hi Hernando, Just a week ago I added a Chimera command that will do this: measure rotation #0 #1 reports in the reply log the same info about the orientation of model #0 relative to model #1 that the Fit Map tool does. You can abbreviate the command "me rot #0 #1". It also displays the rotation axis and that can't currently be turned off. This command is so new it has not yet been documented. You'll need a current daily build to use it. Tom hsosa@aecom.yu.edu wrote:

Is it possible to retrieve the transformation matrix (or angle of rotation and translation) that the Matchmaker tool used to align two atomic models ?.

I know that you can get this information when fitting an atomic model into a density map using the tool Fit in Map and then pressing the Results button. Is there anything similar for the MatchMaker tool ?.

Thanks

Hernando