International
Tables for Crystallography Volume F Crystallography of biological macromolecules Edited by M. G. Rossmann and E. Arnold © International Union of Crystallography 2006 |
International Tables for Crystallography (2006). Vol. F. ch. 25.2, p. 703
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For NC symmetry averaging within a single crystal, the calculations are exactly as described above. One refines the NC symmetry operators with LSQROT or LSQROTGEN, creates the appropriate envelope mask(s) with MAPVIEW, averages with MAPAVG and expands the averaged submap to a full cell with BLDCEL.