Hi Chimera friends, I have a volumetric potential file loaded that I want to map onto a molecular surface. For my application, I want the color mapping to use a custom palette of at least three colors that spans the full range of surface values. I know that I can do this by simply specifying the custom colors in the Surface Color panel and then clicking "Set full range of surface values". That works for me. However, I want to do this via command line. The following line works for me (I've omitted "cmapRange full" because that is the default setting): scolor #0 volume #1 offset 1.4 cmap cyanmaroon My problem become if I want to set a custom palette: scolor #0 volume #1 offset 1.4 cmap -10,yellow:0,white:10,green This line also works, but for values lower or higher than –10 or +10, the color ramp "plateaus". And this line only works because the extents of this particular mapping happen to go from –29 to +17. Is it possible to obtain the values for the full range and specify them for a custom palette? Or is it possible to assign a custom palette and call it like the default palettes? I'm happy to clarify if needed. Thanks! Darrell -- Darrell Hurt, Ph.D. Section Head, Computational Biology Bioinformatics and Computational Biosciences Branch (BCBB) OCICB/OSMO/OD/NIAID/NIH 31 Center Drive, Room 3B62B, MSC 2135 Bethesda, MD 20892-2135 Office: 301-402-0095 Mobile: 301-758-3559 Web: BCBB Home Page<http://www.niaid.nih.gov/about/organization/odoffices/omo/ocicb/Pages/bcbb.aspx#niaid_inlineNav_Anchor> Twitter: @niaidbioit<https://twitter.com/niaidbioit> Disclaimer: The information in this e-mail and any of its attachments is confidential and may contain sensitive information. It should not be used by anyone who is not the original intended recipient. If you have received this e-mail in error please inform the sender and delete it from your mailbox or any other storage devices. National Institute of Allergy and Infectious Diseases shall not accept liability for any statements made that are sender's own and not expressly made on behalf of the NIAID by one of its representatives.