[Chimera-users] Chimera movie with simulation time labels ?

[Elaine Meng]

Hello Marek,
It may be possible using per-frame scripting in MD Movie (in that tool's menu: Per-Frame... Define script). I've definitely shown frame number as a label for a trajectory, details below.

<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/movie/framemovie.html>
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/movie/movie.html#per-frame>

The process would be something like:
- figure out equation to convert frame number to time
- per-frame script would use that equation and show result as a 2D label
- record movie while the per-frame script is active

I think it would be necessary to do it in Python, to include the equation part, but the script dialog provides a way to use frame number in the script.  The only part I am concerned about is whether the equation output (simulation time) has to be converted to a character string to be used as label contents.

I have definitely used this process to simply show the frame number as a label during the trajectory.  That is done with a per-frame script of Chimera commands in the "Trajectory and Ensemble Analysis" tutorial, part 1:
<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/tutorials/ensembles2.html>

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 Jun 15, 2011, at 9:37 AM, Marek Maly wrote:

> Hello all,
> Is it possible to create Chimera movie (MD trajectory animation) with
> simulation time labeled on the corner ? (Of course after I provide through  
> some appropriate
> dialogue the time interval between two consequent frames).
>   Thanks in advance for any hint !
>         Best wishes,
>              Marek