VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Wed Jan 10 2007 - 20:01:32 CST

Hi Eric,
  If you'd like to try them out, I have some undocumented
(i.e. unfinished implementation) commands which move the camera
around to arbitrary positions and orientations. I've written some
prototype scripts which use these commands to perform complex
camera moves for the purposes of making movies and animations.
If you'd like to try these out, let me know and I'll make the
test scripts etc available to you and anyone else that wants to
use them.

  John Stone
  vmd_at_ks.uiuc.edu

On Wed, Jan 10, 2007 at 03:19:39PM -0800, Eric Peterson wrote:
> Ah yes, I didn't think of getting the rotation matrix from the molecules
> themselves. Some utilities to manipulate the camera with Tcl and so forth
> would be really useful, I look forward to seeing those in VMD!
>
> Thanks,
> Eric
>
>
>
> On 1/10/07 10:55 AM, "John Stone" <johns_at_ks.uiuc.edu> wrote:
>
> >
> > Hi,
> > If you want the view direction vector, you can get this with
> > (in current versions of VMD, things will change in the future
> > as I begin enabling camera manipulation features that are currently
> > experimental):
> >
> > If a molecule is loaded, you can get this with:
> > set eye_vector [vectrans \
> > [measure inverse [lindex [molinfo top get rotate_matrix] 0]] {0 0 -1} \
> > ]
> >
> > Cheers,
> > John Stone
> >
> > On Wed, Jan 10, 2007 at 10:23:29AM -0800, Eric Peterson wrote:
> >> Does someone know a method to find out what the normal axis is to the
> >> current "window" the user is looking though at the molecules rendered by
> >> VMD? I would have thought the "display" tcl command could return this
> >> information but I don't see anything in it that tells you what the relative
> >> rotation of the current scene is to the xyz axes.
> >>
> >> Eric
> >>
> 

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