[Chimera-users] [chimera-users]about "color key"

[Elaine Meng]

Dear CJ,
The units depend on what you are trying to show with color.  If you started Color Key with the button in the Surface Color tool and in that tool, you were coloring by distance (radius, cylinder radius, or height), the units are whatever distance units are in your structure data.  That is usually angstroms, but it could be nanometers for some density maps.
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/2dlabels/2dlabels.html#colorkey>
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/surfcolor/surfcolor.html>

If you mean you want to display an angstrom symbol, that can be done with the 2D Labels tool, which is another tab on the same dialog as Color Key.  You can just make a symbol label and then drag it to wherever you want.
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/2dlabels/2dlabels.html#2dlabels>

There is an example of putting an angstrom symbol over a color key in this image tutorial:
<http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/tutorials/bfactor.html>

I hope this helps,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Dec 15, 2010, at 6:36 PM, C.J. wrote:

> Dear all,
> I seek for help that how to change the unit of "color key" to angstrom.
> As the default value displaied in "color key" is just number, I wonder
> what it means.
> Any reply will be greatly appreciated.
> -- 
> Regards!
> C.J.