VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Sat Mar 16 2002 - 11:57:54 CST

Dear Sanjeev,
  I don't think any of our existing movie scripts have the ability
to interpolate between trajectory frames, but it should be relatively
easy to implement a script that does this. As a starting point, you might
want to look at the trajectory_smooth script and see how it works.
The part that will be different in the script you need is that it will have
to insert extra frames for the interpolated frames.

We intend to implement several of these trajectory processing
capabilities in VMD itself, but until they are available in VMD, the
scripts are the best way to get it done. I'll announce when we have
the smoothing and interpolation features bulit-into VMD.

The trajectory_smooth script is available here:
 http://www.ks.uiuc.edu/Research/vmd/script_library/scripts/trajectory_smooth/

Let us know if you need help getting this going, I'm sure other people would
like to have this feature as well.

  John Stone
  vmd_at_ks.uiuc.edu

On Sat, Mar 16, 2002 at 10:54:39PM +0530, Sanjeev B.S. wrote:
> Hello,
> Is there a way to make a smooth movie with the feature of
> view_change script? That is, if I have trajectories that are seperated by
> say 10ps over 1ns (that is 100 PDBs), and I want to show interpolated
> movememnt between the PDBs/frames, can I do that?
>
> There is another script that makes interpolation between frames but that
> works only if the number of frames is strictly two. So now the only way I
> find is to first write a script that loads succesive PDBs each time,
> generate rgbs, delete the old frames and load the next ones, and then
> finally convert rgbs into MPEG/gif. Is there any other way of doing this
> that is easier?
>
> Thanks in advance for any suggestions.
> -Sanjeev 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
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Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349              
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