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

Elaine Meng meng at cgl.ucsf.edu
Thu Dec 16 09:03:00 PST 2010

Hi CJ,
If your structure and/or map data is in angstrom cooordinates, and you are coloring by distance in Surface Color, and you start Color Key from the button in Surface Color, it is already automatically in angstrom units.

On Dec 15, 2010, at 7:21 PM, C.J. wrote:

> Thanks.
> But I don't know clearlly how to set these paremeters to creat a
> color key with unit of "Angstrom" automatically.
> More help will be appreciated.
> 2010/12/16 Elaine Meng <meng at cgl.ucsf.edu>:
>> 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.
> -- 
> Regards!
> C.J.
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