[Chimera-users] ChimeraX angle measurement

Elaine Meng meng at cgl.ucsf.edu
Thu Oct 29 12:28:59 PDT 2020

Hi Beth,
I changed the subject line to something more specific.  It's OK to ask on this list, but you may be interested that there is a separate mailing list for ChimeraX questions: 
chimerax-users at cgl.ucsf.edu

In ChimeraX the command is "angle" so something like this should work:

angle #1/A:601 at c7m :222 at cb #17/A:602 at c7m

ChimeraX "angle" command

ChimeraX measurements:

ChimeraX atomspec:

I hope this helps,
Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Oct 29, 2020, at 11:42 AM, M. Elizabeth Stroupe <mestroupe at bio.fsu.edu> wrote:
> Hi ChimeraX team,
> I need to measure a simple angle between three atoms, two within one model and the third in another model to describe a domain motion.
> In Chimera I could do this from the Structure Analysis tab but now it seems you can only measure distances.  I tried the following command(s) and they both gave me an error. I also tried including commas between the angles. What am I doing wrong?
> angle #1/A:602 at C7m,:222 at CB,#17/A:602 at C7M
> measure angle #1/A:602 at C7m #1/A:222 at CB #17/A:602 at C7M
> Thank you!
> Beth
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