[Chimera-users] Angle

[Jian Guan]

Hi Elaine,

Thank you so much for your reply. I made the axes by myself through
“measure rotation”. It generated axes models. If “angle” command only
show the smaller angle, why I got angle of minus and even more then 90
degree?

Thanks,

Jian

 

-----Original Message-----
From: Elaine Meng [mailto:meng at cgl.ucsf.edu] 
Sent: 2014年9月23日 16:36
To: Jian Guan
Cc: chimera-users at cgl.ucsf.edu
Subject: Re: [Chimera-users] Angle

 

Hi Jian,

You would need to use the IDs of the axes (not model numbers) in the angle
command.  The IDs are shown in the Axes/Planes/Centroids list of objects.
You could have specified the IDs when you made the axes, or they would be
generated automatically.

 

< <http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/angle.html>
http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/angle.html>

<
<http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/structuremeas/str
ucturemeas.html#axes>
http://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/structuremeas/stru
cturemeas.html#axes>

 

So the command would be something like: 

 

angle a1 a2

 

It gives the smaller angle, treating both axes as infinite lines.

 

Elaine

 

On Sep 23, 2014, at 12:29 PM, "Jian Guan" < <mailto:jug25 at psu.edu>
jug25 at psu.edu> wrote:

 

> Hi All,

> I made two axes for two molecule, and want to measure the angle between
them. Let's say, #1 and #2 are the two axes. I used command line of "angle
#1 #2" to do that.

> Question:

> What is the default angle measurement? The #1 rotate clockwise or
anti-clockwise to reach #2?

> Thanks,

> Jian

 

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