FOGEN: Generate a Map from Asymmetric Points

Authors: Nick Spadaccini, Richard Alden & Jim Stewart

Contact: Nick Spadaccini, Crystallography Centre ,

University of Western Australia, Nedlands 6009, Australia

FOGEN produces any volume of space from an electron density map containing a minimum of one asymmetric unit of real space. The output map may be scaled and then printed, stored on a bdf, or both. If the map is to be printed, all values may be listed or any character may be substituted for values lying between certain user-specified limits. There must be sufficient memory available to store the entire input map plus one complete section of the output map. FOGEN is applicable to all space groups.

File Assignments

Reads asymmetric map densities from file map

Optionally writes generated map points to mag

Example

title LOOK AT 2 UNIT CELLS IN SG P212121

FOGEN

LAYOUT layer down across 100 100 10 0 0 10 1 1 1

print *2 1000 100 -100 = = :insert blank for rejected density