VMD-L Mailing List

From: Oren Elrad (oelrad_at_gmail.com)
Date: Fri Aug 15 2008 - 13:24:25 CDT

I tried it from the "main" vmd window (uses > as a prompt instead of
%) with the same (lack of) result.

It's curious that you should suggest that because the script that I
referenced in my OP is run at the TkConsole level (e.g. %source
"script.tkl"), at least so I thought.

Thanks for your reply!

Oren

PS. Wouldn't declaring %Global vmd_frame avoid any scoping issues, or
am I not understanding some deeper (byzantine) relationship between
tcl and tkconsole?

On Fri, Aug 15, 2008 at 1:12 PM, Axel Kohlmeyer
<akohlmey_at_cmm.chem.upenn.edu> wrote:
> On Fri, 15 Aug 2008, Oren Elrad wrote:
>
> OE> Hi all,
> OE>
> OE> I have a molecule (id 0) with a number of frames loaded into VMD for
> OE> Win32 v 1.8.6 and a procedure that I would like to be run every time
> OE> the frame changes. Following the example scipt* on the site, I tried
> OE> the following in tkl:
> OE>
> OE> >Main< (VMD) 49 % proc do_stuff {} {puts "blah"}
> OE> >Main< (VMD) 51 % trace variable vmd_frame(0) w do_stuff
>
> you are doing this in TkCon, right?
>
> please try the "normal" console instead. in tkcon you
> are not on the toplevel, IIRC.
>
> a second option is to write your commands into a scriptfile
> and then execute it with the "play" command in tkcon.
>
> cheers,
> axel.
>
> p.s.: if you look at the code of tkcon, you'll actually wonder
> how it can work _at all_. this is doing some deep tcl-magic... ;-)
>
>
> OE>
> OE> but this does not do anything when the frame changes. I've tried
> OE> various permutations of this syntax, as well as tracing
> OE> vmd_timestep(0)
> OE>
> OE> *http://www.ks.uiuc.edu/Research/vmd/script_library/scripts/sscache/sscache.tcl
> OE>
> OE> Any help would be appreciated.
> OE>
> OE> Oren
> OE>
>
> --
> =======================================================================
> Axel Kohlmeyer akohlmey_at_cmm.chem.upenn.edu http://www.cmm.upenn.edu
> Center for Molecular Modeling -- University of Pennsylvania
> Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
> tel: 1-215-898-1582, fax: 1-215-573-6233, office-tel: 1-215-898-5425
> =======================================================================
> If you make something idiot-proof, the universe creates a better idiot.
>