VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Mar 09 2012 - 16:27:43 CST

Hi,
  Before you would be able to make any of the user-defined movies,
you would need to ensure that the "normal" built-in movie types
like the rocking movies work. If you don't have required tools like
NetPBM installed, then there's no way that any of it is going to work
correctly. I recommend you get that fixed first, and once you get the
normal rocking movies running, the user-defined movies should also work.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Mar 09, 2012 at 10:10:05AM -0800, lam nguyen wrote:
> Yes I did try those 2 scripts on linux and on macbook. On linux both
> scripts did not work. On mac, one of them worked fine,
> the usermoviefade.tcl did not work.
> If I recall correctly I might have failed installing netpbm on linux
> because I could not install all the dependencies. Would that be the
> problem that gave the error? If yes I will try install netpbm again.
> Thanks,
> Lam
>
> On Thu, Mar 8, 2012 at 10:12 AM, John Stone <johns_at_ks.uiuc.edu> wrote:
>
> Hi,
> I'm not sure why you're having trouble there, it seems reasonable.
> Perhaps there's a typo in your script that I'm not seeing below.
> What happens if you download and run one of the example user-defined
> movie scripts that are posted here:
> http://www.ks.uiuc.edu/Research/vmd/plugins/vmdmovie/
> http://www.ks.uiuc.edu/Research/vmd/plugins/vmdmovie/usermovie.tcl
> http://www.ks.uiuc.edu/Research/vmd/plugins/vmdmovie/usermoviefade.tcl
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
> On Mon, Mar 05, 2012 at 10:49:00AM -0800, lam nguyen wrote:
> > Dear all,
> > I want to learn how to make movies with user-defined scripts. I
> started
> > with a simple script from the VMD tutorial. Here is the content:
> > proc moviecallback { args } {
> > puts "User-defined movie frame update callback frame:
> > $::MovieMaker::userframe
> > / $::MovieMaker::numframes"
> > rotate y by 5
> > }
> > ## Easy-to-use proc to enable the user-defined movie frame callback
> > proc enablemoviecallback { } {
> > trace add variable ::MovieMaker::userframe write moviecallback
> > }
> > ## Easy-to-use proc to disable the user-defined movie frame
> callback
> > proc disablemoviecallback { } {
> > trace remove variable ::MovieMaker::userframe write moviecallback
> > }
> > In the Tk console:
> > source usermovie.tcl
> > enablemoviecallback
> > Then in the movie maker window I chose User defined procedure.
> > However I got an error message: Invalid input file expansion
> expression
> > (no ']')
> > Can anyone please tell me what I did wrong here?
> > Thanks
> > Lam
>
> --
> NIH Resource for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> http://www.ks.uiuc.edu/~johns/ Phone: 217-244-3349
> http://www.ks.uiuc.edu/Research/vmd/ Fax: 217-244-6078 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
http://www.ks.uiuc.edu/~johns/           Phone: 217-244-3349
http://www.ks.uiuc.edu/Research/vmd/       Fax: 217-244-6078