VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Jan 26 2007 - 02:07:34 CST

Hi,
  It would be helpful if I knew what it is that you're actually
trying to do with the various matrices? Do you want to change
the atom coordinates (which you can easily do, but using
a different method) or are you trying to calculate something
based on the viewing orientation? If you tell me more about
what you're trying to accomplish I may have further suggestions
for you.

  John Stone
  vmd_at_ks.uiuc.edu

On Thu, Jan 25, 2007 at 09:29:55AM +0100, Jancs Istvn wrote:
> Hi!
>
> Thanks for your answer! In the meanwhile I found potential reason
> of my problem (by source code). If I translate molecule by mouse
> (Mouse/Move/Molecule menu) center_matrix is not updated, only
> "mol->current()->pos" changed. Does it mean, that I should write
> coordinates of all atoms in molecules?
>
> Thanks a lot again
>
> Istvan
>
> 2007/1/24, John Stone <johns_at_ks.uiuc.edu>:
> >
> >Hi,
> > Please have a look at the VMD save state script (attached to this
> >email). It accesses the various viewing/orientation matrices, both
> >reading and writing, writes them to a saved state script file, and
> >generates the appropriate commands to restore them.
> >
> >Cheers,
> > John Stone
> > vmd_at_ks.uiuc.edu
> >
> >On Wed, Jan 24, 2007 at 10:49:28AM +0100, Jancsó István wrote:
> >> Hi all!
> >>
> >>
> >> I loaded two molecules for VMD, selected Mouse/Move/Molecule from menu,
> >> and moved molecules distinctly. But these commands:
> >>
> >> puts[molinfo 0 get {center_matrix rotate_matrix scale_matrix
> >global_matrix}]
> >> puts[molinfo 1 get {center_matrix rotate_matrix scale_matrix
> >global_matrix}]
> >>
> >> printed same matrices. This incident effects that I can't save positions
> >> of molecules to the session files.
> >>
> >> How can I change (or read correctly) these matrices...?
> >>
> >>
> >> Best regards
> >>
> >> Istvan
> >
> >--
> >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
> >
> >
> > 

-- 
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