[Chimera-users] saving maps generated with molmap - origin?
goddard at cgl.ucsf.edu
Tue Aug 19 16:51:16 PDT 2008
If you add the file suffix ".map" then Chimera will interpret the file
as a CCP4 map which is slightly different than MRC format. The most
important difference is that MRC has the floating point origin
specification while CCP4 does not. You can open a file with ".map"
suffix in Chimera as an MRC file by choosing "All (ask type)" for the
File Type menu in the Chimera File / Open dialog. Or if you open the
file from the Chimera command line use the prefix "mrc:", for example
Chimera command "open mrc:myfile.map". Simplest just to use the ".mrc"
suffix when you save the file.
Look at section 5 of the following MRC documentation for the MRC 2000
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