Hi Bala, I can't think of a way to do it with Chimera commands only, but it could be done with Python - e.g. you could define a per-frame Python script in the MD Movie dialog as described in the "per-frame scripts" section of this page: <http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/movie/framemovie.html> ... or if you are using scripts only (not graphical interfaces like the MD Movie dialog) you could include the Chimera command "perframe open [location]yourfile.py" which would open and execute the python script yourfile.py at each display frame. Of course, you could name the python file something else. <http://www.rbvi.ucsf.edu/home/meng/docs/UsersGuide/midas/perframe.html> However, someone else would need to help with writing the actual Python (beyond my skill set, sorry). It is a long holiday weekend here, so it might be a few days before anybody else replies. Best, Elaine ----- Elaine C. Meng, Ph.D. UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco On Aug 31, 2013, at 9:15 AM, Bala subramanian wrote:
Friends, I am trying to visualize the md movie of a channel protein. In every frame, i want to display only those ions whose Z coord ranges from -10 to 35 (zcoor of the channel) to make the movie. Is there any simple way ?. Precisely displaying atoms with a condition. Thanks in advance, Bala