How to edit a domain

A domain is a set of class names, IDs, or values that can be used in a certain data object. All ILWIS data objects have a domain. One domain can be used for several data objects.

For a domain Class or ID, you might want to add new items to the domain, or you might want to change the names of the classes or IDs. Editing a domain Value is usually not necessary.

Tip:

When working with maps of different years but of the same theme, or containing the same class names, IDs, or values, you are advised to create one domain for these maps and use this domain for all maps. It is not necessary that every class name or every ID of a domain is present in each map.

To edit a domain:

When a map is of the domain type Class or ID, and the map is displayed in a map window, you can also choose the Domain command on the Edit menu in a map window.

 

For a Class or ID domain:

the Domain Class/ID editor will be opened; you can add class names or IDs to the domain, add class codes, delete classes, change class names and/or codes etc.

For an editable user-defined Value domain:

the Edit Value Domain dialog box will be opened; the value range and precision of the domain can be changed; you can also specify a unit for the values.

For an editable user-defined Bool domain:

the Edit Bool Domain dialog box will be opened; the strings that will appear in the user-interface for True and False values can be adapted.

See also: