International
Tables for
Crystallography
Volume G
Definition and exchange of crystallographic data
Edited by S. R. Hall and B. McMahon

© International Union of Crystallography 2006
International Tables for Crystallography (2006). Vol. G. ch. 2.5, p. 57

Section 2.5.5.9. Definition example 9: enumeration states

S. R. Halla* and A. P. F. Cookb

a School of Biomedical and Chemical Sciences, University of Western Australia, Crawley, Perth, WA 6009, Australia, and bBCI Ltd, 46 Uppergate Road, Stannington, Sheffield S6 6BX, England
Correspondence e-mail:  syd@crystal.uwa.edu.au

2.5.5.9. Definition example 9: enumeration states

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The last example, in Fig. 2.5.5.9[link], shows the definition of an item whose value is restricted to a predictable set of values known as enumeration states. The attributes _enumeration and _enumeration_detail are used to specify which enumeration states are permitted for the defined data item. Only one of these states may appear as the value for the defined item in a CIF. The attribute _enumeration_default specifies the state value that is used if an item is not instantiated.

[Figure 2.5.5.9]

Figure 2.5.5.9 | top | pdf |

DDL1 definition showing enumeration states.








































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