Hello Ajith, You would just divide by 255 to get the equivalent value in the 0-1 range. If you are using Chimera 1.5 (daily builds), the Color Editor will do the conversion for you: if you type in a value greater than 1 but no greater than 255 for a color component and press return, it will automatically be divided by 255: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/colortool.html> The Color Editor is opened by clicking any of the square color wells that appear in several Chimera dialogs, and is also listed in the menu under Tools... Utilities. 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 Mar 30, 2010, at 3:20 AM, Ajith Harish wrote:
Hello, I would like to color different regions of a molecule corresponding to RGB colors from Adobe Illustrator. Chimera RGB ranges from 0.000 to 1.000 where as the Illustrator RGB ranges from 0 to 255. Could you please let me know how these two scales are related? Thank you very much, Ajith