Attribute: Object Class Definition

NEW in S-57 Edition 3.1.1

When approved for use, the attribute CLSDEF must be defined in the data itself and is the detailed definition of all objects comprising the new object class. It is comparable to the definition section of an existing object class in the object catalogue. All objects that belong to the same object class (CLSNAM) must use an identical definition and this definition must also be used for the proposal to the S-100 feature data dictionary manager.

Acronym: CLSDEF

Code: 190

Attribute type: S


Specifies the defining characteristics of a 'new object'.


Identical definitions must be used for other instances of identical features being encoded.

The wording for the attribute CLSDEF must be approved by TSMAD before use.