VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Feb 16 2010 - 10:25:37 CST

Hi,
  You can compute this for a given molecule by transforming the
default view direction { 0 0 -1 } by the inverse of the molecule's
rotation matrix:
  set R [lindex [molinfo top get rotate_matrix] 0]
  set viewdir [coordtrans [measure inverse $R] {0 0 -1}]

You can similarly compute the position of the camera in molecule
coordinates by applying the right transformations to the original
camera position in world coordinates.

Cheers,
  John

On Tue, Feb 16, 2010 at 10:58:24AM +0100, Jacob Kirkensgaard wrote:
> Hi all
>
> I simply can't find the command for this: Is there not a command to get the current view direction in orthographic mode. For example the default start view is along the z axis and the answer would be [0 0 -1].
>
> Thanks, your help is greatly appreciated
> Jacob 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
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