The space groups are specified by their number as given in the
International Tables for Crystallography, Vol. A. You can give
this number, if you know it, or you can choose it from the table with the
space group numbers and symbols if you click on the link
choose it.
The available crystallographic data refer either to the standard/default setting of the chosen space group or to the so-called ITA Settings.
To get the data in any User-Defined Setting it is necessary to specify the corresponding transformation that relates the new to the standard/default setting of the space group.
If you are using this program in the preparation of a paper, please cite it in the following form:
Aroyo, et. al. Zeitschrift fuer Kristallographie (2006), 221, 1, 15-27.
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Wyckoff Positions