Thank you so much. ----------------------------- Post-doc IGBMC/ FRANCE MALETTA Massimiliano Equipe/Service: KLAHOLZ TEL : +33 (0) 3 88 65 57 53 FAX : +33 (0) 3 88 65 32 01 ________________________________ From: Elaine Meng [meng@cgl.ucsf.edu] Sent: Monday, November 29, 2010 7:45 PM To: Massimiliano MALETTA Cc: chimera-users@cgl.ucsf.edu Subject: Re: [Chimera-users] Merging mrc map Hello, You can use the "vop add" command: <http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/vop.html#add> Examples: vop add #1-25 onGrid #0 vop add #1,2,5 onGrid #5 inPlace true vop add #1,2 boundingGrid false 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 Nov 29, 2010, at 7:19 AM, Massimiliano MALETTA wrote: Hello I would like to know if merging two maps is possible in Chimera. I have two *mrc map files and I would like to figure out how to get a third file containing the two maps, just summed. I tried the option morph volume, but in fact it is always down weighting one of them respect to the other. Thank you for the help.