[Chimera-users] movie trajectory

Elaine Meng meng at cgl.ucsf.edu
Mon May 5 20:52:29 PDT 2008

Hi Jean-Paul,
I wanted to explain that many of the movie-related commands listed in

> http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/movies.html

have a "number of frames" argument.   For example, the command

roll y 1 360

performs a 1-degree rotation around the Y axis in each of 360 frames  
- you don't have to repeat a 1-degree rotation command 360 times!     
There are similar commands for scaling, translation, and  
interpolating between previously saved positions, as Eric  
mentioned.   The page also links to some example command files.
Elaine C. Meng, Ph.D.                          meng at cgl.ucsf.edu
UCSF Computer Graphics Lab and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On May 5, 2008, at 7:04 PM, Eric Pettersen wrote:

> Hi Jean-Paul,
> 	I suppose you're familiar with the page that discusses commands  
> relevant to animation in Chimera:
> http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/movies.html
> 	Maybe there are other approaches, but one way to possibly avoid an  
> incredibly detailed script is to use the savepos command to save  
> views you want to visit and then use the reset command to  
> interpolate between these views.  If you find you get unwanted  
> clipping during the interpolation, you may have to edit the  
> positions and move the clip planes further apart (i.e. reset  
> position-name; use the Side View or thickness/clip command to move  
> the clip planes apart; savepos position-name).
> On May 5, 2008, at 5:20 PM, Jean-Paul Armache wrote:
>> hi all,
>> i have a small question. would any of you know a way to set up a  
>> specific trajectory for a camera to move around the molecule? i  
>> know you can rotate the whole molecule, but the question is more  
>> related to similarity to 3ds max or maya - if you could set up a  
>> specific way the camera moves around the molecule (rotation,  
>> movement at specific point, zoom, stop, restart, further movement  
>> etc) ?
>> maybe the question is trivial, however i haven't found a way to do  
>> it (an easy way - you can do quite a huge script with small  
>> movements - one step at a time). my question is more about path  
>> drawing and setting stop points.
>> regards,
>> jean-paul

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