IfcRelDefinesByProperties

Definition from IAI: This objectified relationship (IfcRelDefinesByProperties) defines the relationships between property set definitions and objects. Properties are aggregated in property sets, property sets can be grouped to define an object type.

The IfcRelDefinesByProperties is a 1-to-N relationship, as it allows for the assignment of one property set to a single or to many objects. Those objects then share the same property definition.

HISTORY: New Entity in IFC Release 2.0. Has been renamed from IfcRelAssignsProperties in IFC Release 2x.

EXPRESS specification:

ENTITY IfcRelDefinesByProperties

SUPERTYPE OF

(IfcRelOverridesProperties)

SUBTYPE OF (

IfcRelDefines);

RelatingPropertyDefinition

IfcPropertySetDefinition;

END_ENTITY;

Attribute definitions:

RelatingPropertyDefinition

Reference to the property set definition for that object or set of objects.

Inheritance graph

ENTITY IfcRelDefinesByProperties;

ENTITY IfcRoot;

GlobalId

IfcGloballyUniqueId;

OwnerHistory

IfcOwnerHistory;

Name

OPTIONAL IfcLabel;

Description

OPTIONAL IfcText;

ENTITY IfcRelationship;

ENTITY IfcRelDefines;

RelatedObjects

SET [1:?] OF IfcObject;

ENTITY IfcRelDefinesByProperties;

RelatingPropertyDefinition

IfcPropertySetDefinition;

END_ENTITY;