VMD-L Mailing List

From: Sebastián Gutiérrez (segumal_at_gmail.com)
Date: Thu May 26 2016 - 13:36:40 CDT

In this mailing list there is a reference to a script made by Axel
Kohlmeyer to display a time bar in VMD, which is available in his homepage.
Here is the link:
https://sites.google.com/site/akohlmey/redirect#chap5_sect1

Best regards,

Sebastian G.

On Thu, May 26, 2016 at 12:19 PM, John Stone <johns_at_ks.uiuc.edu> wrote:

> This is a version of a script I wrote as an example eons ago.
> You need to run the "enabletrace" proc to cause the counter to be drawn,
> and then when finished, you should run "disabletrace".
>
> The "drawcounter" proc does the work of actually drawing, so that is the
> part you would generally customize. I should note that if you make any
> mistakes in your code in "drawcounter" the general behavior in callbacks is
> that they will silently fail. If you want to debug a broken callback, you
> will want to use a try/catch block or extensive use of "puts" until it
> works.
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Fri, May 27, 2016 at 12:08:23AM +0800, sunyeping wrote:
> > Dear all,
> > I am trying to show the simulation time on a MD movie and I find a
> script
> > that probably does this job in the mail list (written by Peter C.
> Lai):
> > ------------------------
> > proc enabletrace {} {
> > global vmd_frame;
> > trace variable vmd_frame([molinfo top]) w drawcounter
> > }
> > proc disabletrace {} {
> > global vmd_frame;
> > trace vdelete vmd_frame([molinfo top]) w drawcounter
> > }
> > proc drawcounter { name element op } {
> > global vmd_frame;
> > draw delete all
> > # puts "callback!"
> > draw color white
> > set psperframe 4
> > set psoffset 0
> > set time [format "%d ps" [expr ($vmd_frame([molinfo top]) *
> $psperframe)
> > + $psoffset]]
> > draw text {70 40 80 } "$time"
> > }
> > -------------------------
> > But I don't know how to use it. I sourced it in the VMD Console, the
> time
> > was shown; After that I made the movie, and the time wasn't shown yet.
> > Could someone help me with this?
> > Best regards.
>
> --
> NIH Center 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/
>
>