From: John Stone (
Date: Thu Jul 17 2008 - 17:02:05 CDT

  The ">" character you have in your example below shouldn't be there,
that would cause some trouble for sure.

Here's a proper example command sequence to make a movie from text mode:
  package require vmdmovie
  mkdir /tmp/mytmpdir
  ::MovieMaker::makemovie /tmp/mytmpdir example ppmtompeg snapshot 10

This worked fine for me.
Try that and let me know how it goes.

  John Stone

On Wed, Jul 16, 2008 at 09:32:37AM -0500, Samir Unni wrote:
> Hi,
> I'm trying to create a Tcl script that will use output from APBS to create a
> video file, with no user interaction. So far, I have managed to manually
> create a state file, to which I can then add a few lines of code for the
> Movie Plugin, to automatically generate the video file and then exit VMD.
> However, I can't seem to get VMD to properly generate the video file when I
> use the script. It creates a file, but it doesn't seem to contain any actual
> data (it's only about 20 KB), and doesn't play correctly when I open it with
> MPlayer. This is the line of code that seems to be the problem:
> ::MovieMaker::makemovie /Users/srunni/dev/vmd_tests/1fas 1fas ppmtompeg
> > snapshot 10
> When I load this exact same state file, but with that line removed, and
> manually use the Movie Plugin, there are no problems. I figured out the
> syntax for the above code by taking a look at vmdmovie.tcl, and imitating
> the calls made when the Movie Plugin is launched from the GUI. As far as I
> can tell, I have made no mistakes in the syntax. Does anyone know why this
> isn't working correctly?
> Thanks,
> Samir Unni

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