[Chimera-users] A question about MD movie

Elaine Meng meng at cgl.ucsf.edu
Fri Oct 31 10:14:41 PDT 2014


Hi Sherry,
Yes, you can make a movie with simultaneous playbacks of multiple trajectories, but you would generally need to use a command script because it would be too hard to synchronize them yourself using the MD Movie dialogs.

You could open and load the trajectories the normal, interactive way, and position and display them how you like.  Then with the Chimera command script you could play them by using a “coordset” command for each trajectory model, for example:

coordset #0 1,100; coordset #1 1,100

Once you get the script showing what you want, you can add the movie-recording commands to it.

For my mini-test I opened two NMR structures (1plx and 1g1p)  as PDB single-file trajectories (models #0 and #1) and opened a plain-text command file named test.com containing these lines:

movie record
coordset #0 1,18; coordset #1 1,18; wait 18
movie encode output ~/Desktop/test.mov

<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/coordset.html>
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/movie.html>
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/movies.html#moviecommands>

… of course, your script could also do other things, like rotating, showing text (2D labels), etc.
I hope this helps,
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 Oct 30, 2014, at 12:18 AM, Sherry Wang <sherry523 at gmail.com> wrote:

> Hi,
> Is it possible to to record a MD movie that combines several dcd files playing simultaneously, not sequentially? 
> Thanks.
> Sherry Wang
> 
> ********************************************************
> Shu-Ying Sherry Wang, Associate Professor
> Department of Microbiology and Immunology
> National Cheng Kung University
> 1 University Road
> Tainan, Taiwan 701




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