Returns human-readable information on a specific input space group.
A character string. The extended Hermann-Mauguin symbol (e.g. 'P 1 1 21')
Crystallographic symmetry is fundamental in crystallography. It affects the way atoms are arranged in a unit cell, the pattern of reflections in reciprocal space and many other common occurrences in crystallography. This function returns a named list with human-readable character strings which detail key symmetry information.
infostring A named list with fields corresponding to those in the CCP4 symmetry library. The fields' name are:
NUMBER standard spacegroup number
BASISOP change of basis operator
CCP4 CCP4 spacegroup number e.g. 1003 (0 if not a CCP4 group)
HALL Hall symbol
xHM extended Hermann Mauguin symbol
OLD CCP4 spacegroup name (blank if not a CCP4 group)
LAUE Laue group symbol
PATT Patterson group symbol
PGRP Point group symbol
HKLASU reciprocal space asymmetric unit (with respect to standard setting)
MAPASU_CCP4 CCP4 real space asymmetric unit (with respect to standard setting. Negative ranges if not a CCP4 group)
MAPASU_ZERO origin based real space asymmetric unit (with respect to current setting)
MAPASU_NONZ non-origin based real space asymmetric uni (with respect to current setting)
CHESHIRE Cheshire cell (with respect to standard setting)
SYMOP list of primitive symmetry operators
CENOP list of centering operators
# This is the full information for space group number 19, P 21 21 21 SG <- translate_SG(19) ltmp <- extract_symmetry_info(SG) ltmp
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