VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Mar 15 2002 - 10:18:23 CST

Dear Yufang,
  Yes, that's essentially how it works.
The sign of the angle is relative to the ordering of the atoms in
the structure, which is about the only tricky thing involved as
far as I remember.

  John

On Fri, Mar 15, 2002 at 12:07:15AM -0600, Yufang Wang wrote:
> Hi:
>
> I am a new user of VMD. Hope to ask a simple question.
>
> I am not sure how VMD calculates the dihedral angle given 4 atoms in this
> order A, B, C, D. Is the dihedral angle the angle between the plane (A, B,
> C) and (B, C, D)? Please give me some information about this since it is
> too hard to figure out from the image display.
>
> Appreciate it.
>
> Yufang Wang
>
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NIH Resource for Macromolecular Modeling and Bioinformatics
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