IfcRelDefinesByType

IfcRelDefinesByType

Definition from IAI: This objectified relationship (IfcRelDefinesByType) defines the relationships between an object type and objects.

The IfcRelDefinesByType is a 1-to-N relationship, as it allows for the assignment of one type information to a single or to many objects. Those objects then share the same object type.

HISTORY: New entity in IFC Release 2x.

EXPRESS specification:

ENTITY IfcRelDefinesByType

SUBTYPE OF (

IfcRelDefines);

RelatingType

IfcTypeObject;

END_ENTITY;

Attribute definitions:

RelatingType

Reference to the type (or style) information for that object or set of objects.

Inheritance graph

ENTITY IfcRelDefinesByType;

ENTITY IfcRoot;

GlobalId

IfcGloballyUniqueId;

OwnerHistory

IfcOwnerHistory;

Name

OPTIONAL IfcLabel;

Description

OPTIONAL IfcText;

ENTITY IfcRelationship;

ENTITY IfcRelDefines;

RelatedObjects

SET [1:?] OF IfcObject;

ENTITY IfcRelDefinesByType;

RelatingType

IfcTypeObject;

END_ENTITY;