[Chimera-users] Calculating and showing the Mass center of Volume Segments
goddard at sonic.net
Mon Nov 14 09:49:58 PST 2011
There isn't any Chimera command to identify the center of mass or a
density map or place a marker/atom there. But that seems useful. A
Python script can easily do it. I'll see if I can give you a Python
script at the end of today, or maybe add an operation to the Chimera
"measure" command to do this job.
> I got a volume map that I segmented in 4 parts. Now I wanted to
> measure how the parts are coordinated to each other. As the
> Axes/Planes/Centroids menu can only create planes by atoms I wanted to
> place atoms in the mass- center of each segment. Is there any way to
> realize that?
> Or do you have any other way to measure the angles. To explain what
> I'm trying to measure: Example you have 4 segments, I call them a b c
> d. I want to measure how the axis that is formed by a and b, forms an
> angle to c and d, or how ist he angle of the plane formed by a b and c
> compared to ab and d . All for segments are basically the same objects
> just turned and rotated.
> With best regards
> C. Schmidt
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