Hi S, If you mean you want to simulate a density map from an atomic structure, it can be done using the "molmap" command: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/molmap.html> Then (as mentioned in the link above) you can use Volume Viewer or the "volume" command to save the map to a file. 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 12, 2010, at 2:53 PM, snoze pa wrote:
Dear Chimera Users, I want to save/convert a pdb file into .mrc or .ccp4 format using chimera I think I did it before using chimera but don't remember exactly how! I will highly appreciate your help. Thank you S