# Point configuration

The concept of *point configuration* is closely related to that of crystallographic orbit, but differs from it by the fact that point configurations are detached from their generating space groups. The concept of point configuration is the basis for the definition of lattice complexes.

Two crystallographic orbits are said *configuration-equivalent* if and only if their sets of points are identical. A **point configuration** is the set of all points that is common to a class of configuration-equivalent crystallographic orbits.

This definition uniquely * vice versa*.

The *inherent* symmetry of a point configuration is the most comprehensive space group that

### Synonyms

Other terms used by different authors:

*regelmässiges Punktsystem**regular system of points*

### See also

- Chapter 14 of
*International Tables of Crystallography, Section A*