Hi Michael, The select/~select command when used only with model numbers serves to activate/deactivate models for motion, as described here: http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/select.html The move command only moves all the activated models in the same direction. http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/move.html However, I can think of a couple of ways to make models move in opposite directions. The more general way is to save different positions for the desired starting and ending points of the motion (savepos command). Then the reset command with the name of the saved position will move all models from current positions to the saved position, optionally over some number of frames. http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/savepos.html http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/reset.html The less general way moves multiple copies of the same structure in a symmetry-related fashion, slaved to one of the copies. This is not in Chimera, but is an experimental feature available for download from here (the very last one on the page): http://www.cgl.ucsf.edu/chimera/experimental/experimental.html Also, the select/~select stuff mentioned at the beginning of this mail just applies to models. If you wanted to do that with chains within a structure, possibilities are to open each chain from a separate file so they are treated as separate models, or try an experimental feature (same URL as above) that splits the chains in a model into separate models. I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. meng@cgl.ucsf.edu UCSF Computer Graphics Lab and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco http://www.cgl.ucsf.edu/home/meng/index.html On Mar 8, 2007, at 10:51 PM, michel dedeo wrote:

I would like to use Chimera to make a movie in which multiple models or chains move in different directions simultaneously. The movie illustrating myosin thick filament analysis (http://www.cgl.ucsf.edu/chimera/animations/movies/myomovie.mov) is a good example. I am not sure if this post (http://www.cgl.ucsf.edu/pipermail/chimera-users/2006-June/ 000843.html) on interpolated model motion is relevant, or if the 'movemodel' command imagined there actually exists in some patch that I do not have.

If that proves too difficult (I have little programming experience) I would like to be able to hold one model or chain stationary while moving another. I can do this by using the model panel to make one model inactive while entering a movement command to move the active models, but I have not found a way to do this through the command line. Is there a command to activate/inactivate models, or another way to move some models/chains and not others?

Thank you for your help.

Michel Dedeo Francis Lab Department of Chemistry UC Berkeley _______________________________________________ Chimera-users mailing list Chimera-users@cgl.ucsf.edu http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users