IfcTopologicalRepresentationItem

Semantic definitions at the entity

Entity definition

Definition from ISO/CD 10303-42:1992: The topological representation item is the supertype for all the topological representation items in the geometry resource.

NOTE: Corresponding STEP entity: topological_representation_item. Please refer to ISO/IS 10303-42:1994, p.129 for the final definition of the formal standard.

HISTORY: New entity in IFC Release 1.5

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	A
IfcRepresentationItem
IfcTopologicalRepresentationItem

Formal representations

XSD Specification

 <xs:element name="IfcTopologicalRepresentationItem" type="ifc:IfcTopologicalRepresentationItem" abstract="true" substitutionGroup="ifc:IfcRepresentationItem" nillable="true"/>

 <xs:complexType name="IfcTopologicalRepresentationItem" abstract="true">

  <xs:complexContent>

   <xs:extension base="ifc:IfcRepresentationItem"/>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcTopologicalRepresentationItem

 ABSTRACT SUPERTYPE OF(ONEOF(IfcConnectedFaceSet, IfcFace, IfcFaceBound, IfcLoop))

 SUBTYPE OF (IfcRepresentationItem);

END_ENTITY;

 EXPRESS-G diagram