VMD-L Mailing List

From: Carolyn Phillips (phillicl_at_umich.edu)
Date: Sat Oct 29 2011 - 11:38:10 CDT

I should mention that my solution to this assumed bug is to use catdcd to trim the trajectory first and then make the movie with a trajectory step size of 1.

-Carolyn

On Oct 28, 2011, at 6:41 PM, Carolyn Phillips wrote:

>
> Hello,
>
> This is the problem I am having using Movie Maker with VMD. I want to make a movie out of a trajectory that is 10,000 frames long and I want to skip to every 20th frame. If I set a trajectory step size of more than two digits, it is interpreted as only the first digit. Here is an example
>
> trajectory step size --> 1 , (Claimed) Movie Duration 416 seconds, 10000 frames processed.
> trajectory step size --> 5 , (Claimed) Movie Duration 83 seconds, 2000 frames processed.
> trajectory step size --> 10 , (Claimed) Movie Duration 41 seconds, 10000 frames processed.
> trajectory step size --> 20 , (Claimed) Movie Duration 20 seconds, 5000 frames processed.
>
> In the last, the resultant move was several minutes long, but only the first 18 seconds of movie had actual trajectory. After that it was a fixed frame.
>
> I am using the MPEG-1 format, ppm2mpeg
>
> I do not seem to have this problem for trajectories with a fewer number of frames (e.g. a few hundred).
>
> Thanks for your help!
> Carolyn
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