VMD-L Mailing List

From: Nitin Bhardwaj (nbhard2_at_uic.edu)
Date: Wed Dec 08 2004 - 12:43:35 CST

BTW i am trying to rotate PIP around its won center of mass. So i first
move the center of PIP to the origin and so x-axis will be passing right
through the center. Is there a better way to rotate a molecule around a
given vector (from origin to the center)?
thanks
Nitin

Hi,
 I need to rotate a special lipid to put it in a normal bilipid layer
using a command in TkConsole.
So, i say
$pip move [trans x by 90]
which rotates the selection ($pip) 90 degrees about the x axis.
but it says
syntax error in expression "by 90 + 0.0": variable references require
preceding $

DO i need to specify anything (i think its the 'trans, matrix).
When i say 'trans' it says
{1.0 0.0 0.0 0.0} {0.0 1.0 0.0 0.0} {0.0 0.0 1.0 0.0} {0.0 0.0 0.0 1.0}

What is going wrong?
thanks
Nitin