VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Thu Jul 29 2004 - 10:53:38 CDT

Dinesh,
  There isn't a built-in feature to calculate the Euler angles
corresponding to the view direction, but you could calculate them
by assuming the default orientation of positive Z pointing towards you,
positive Y up, and positive X to the right. From there, you can transform
those direction vectors by the VMD transformation matrices and measure
angles as you see fit with a little Tcl code. You'd need to write the
code for this. Another way to go would be to use Display->reset view
and then perform angular rotations in x, y, z with the "rotate by" commands:
  display resetview
  rotate x by 10
  rotate y by 30
  rotate z by -30

Then you'd of course know what your angles are. If you're not up for
writing complex scripts, then that's probably a simple trial-and-error
method for getting what you want.

  John Stone
  vmd_at_ks.uiuc.edu

On Wed, Jul 28, 2004 at 07:11:12PM -0700, pinisetty dinesh wrote:
> Hi all,
> I am very new user to VMD.Today I installed it in
> my machine.I just want to know how can we note the
> rotation angles in x,y and z directions.
> I have single molecule pdb file which I viewed in
> VMD I want to know its angles in x, y and z
> directions.
> Please let me know this.
> Thanks a lot in advance.
> DINESH.
>
>
>
>
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-- 
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