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Creating Maps

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Output of Maps in Graphics Program Format
Recreating Task-Specific Maps
Note on Implementation

Output of Maps in Graphics Program Format

This is intended to simplify viewing maps after running CCP4 programs.

Several task interfaces will generate maps: Generate Patterson Maps, Run FFT, Run DM, Run Solomon, Run Mlphare, Run Refmac and NCS Phased Refinement. By default the map files will be in CCP4 format but they can be in O, Quanta or XtalView format (the XtalView output is actually a phases file which is converted to a map within XtalView). In the Mlphare, DM and Refmac interfaces for O and XtalView formats, a command script is also generated. This script file has a name project_jobid_task.xtal or project_jobid_task.mac respectively for XtalView and O scripts. The form of the script depends on the task: for DM and Solomon the script will display the input map, the output map and the solvent mask. For Mlphare the script will display the output map. For Refmac the script will display the weighted difference map and the weighted map (for O the script contours the weighted map at +2.0 sigma and -2.0 sigma).

Recreating Task-Specific Maps

If you need to create the map files after already running the task, you can avoid rerunning the task by using the Create Task-Specific Maps task in the Map and Mask Utilities module.

Note on Implementation

The conversion of maps to O and Quanta formats relies on using non-CCP4 programs: MAPMAN and MBKALL respectively. CCP4i must be configured to know where to find these (see Configuration).

The format of scripts to the graphics programs are liable to change. If the interface does not generate a script suitable for your version of the graphics program you might like to look at the code which generates the scripts in $CCP4I_top/utils/map_utils.tcl - the procedures MakeOMapMacro and MakeXtalMacro. Alternatively, send an example of the required script to the Interface developers.

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