space_group

anri.crystal.space_group(structure_or_name)

Return the space-group number of a Dans_Diffraction.Crystal, or of a Hermann-Mauguin symbol.

Parameters:

structure_or_name (Crystal | str) – A Dans_Diffraction.Crystal, or a symbol such as “Fm-3m”

Returns:

int – Space-group number, 1 to 230