Volume 2 Chapter 1 Build Menu 3D-CONSTRAIN

Function

3D-CONSTRAIN is used to replace the BUILD menu by the 3D-CONSTRAIN sub-menu. The latter allows you to add geometrical instructions to the fragment definition.

Example

Having built a fragment

Select 3D-CONSTRAIN
The BUILD menu vanishes and is replaced by the 3D-CONSTRAIN sub-menu, shown below:

This is the "home" prompt of the 3D-CONSTRAIN sub-menu.

Note that if no fragment exists and you select 3D-CONSTRAIN then:

Beep
There are no atoms in the fragment!  EXHAUSTIVE should be unset.
Please press <RETURN> to continue. Thank you.

This option allows you to tabulate non-structural parameters for database entries, e.g. *RFACT etc.

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Volume 2 Chapter 1 Build Menu DEFINE-STRUCTURE .