constraining center of mass-constrained MD

From: Vani Krishna (vakri2002_at_yahoo.com)
Date: Thu Feb 17 2005 - 02:51:12 CST

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Hello NAMD users:

Is there a way to constrain the center of mass of a
group of atoms in NAMD?.. As i understand you can
constrain each atom (in some direction), but iam
interested in constraining center of mass of a group
of atoms in z-direction.

anything involving tcl-interface?

Thanks
Vani

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