From: Axel Kohlmeyer (
Date: Wed Jul 11 2007 - 09:22:41 CDT

On Wed, 11 Jul 2007, Bhaskar Jyoti Borah wrote:

BJB> Dear all,

dear bhaskar,

BJB> VMD takes a default origin and accordingly it
BJB> displays the loaded molecule or the cofiguration.

yes. VMD tries to optimize the viewpoint, so that the whole
data set fits into the available space optimally.

BJB> I want to know if it is possible to shift the origin
BJB> from its default location. If possible how do I do it.

yes, please have a look at the VMD user's guide. particularly
the section on using the mouse:

and the section on the text commands:

you didn't say, where exactly your problem is, so it is difficult
to assess what help you really need. one thing that happens a lot
is, that you one changes the representation to display only a small
subset of a large system and in that case the CTRL-R hotkey can be
very helpful to 'recenter' the view to display this subset optimally
in standard orientation.

BJB> Thanking you in advance

for all of that you have to keep in mind, that there are essentially
two ways to change the view: 1) change the viewpoint (the 'camera
position') and keep the coordinates and 2) change the coordinates
and keep the viewpoint.


BJB> regards
BJB> Bhaskar

Axel Kohlmeyer
   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.