IFC 4.3.x development

8.18.3.8 IfcProductRepresentation

Change log

IFC4

modificationsabstractChanged from False to True

8.18.3.8.1 Semantic definitions at the entity

IfcProductRepresentation defines a representation of a product, including its (geometric or topological) representation. A product can have zero, one or many geometric representations, and a single geometric representation can be shared among various products using mapped representations.

NOTE  The definition of this entity relates to the ISO 10303 entity property_definition. The use of the term ‘property’ was avoided since it conflicts with the property, property type, and property set definitions elsewhere in the IFC model.

HISTORY  New entity in IFC2.0

IFC2x3 NOTE  Users should not instantiate the entity from IFC2x3 onwards.

IFC4 CHANGE  Entity made abstract.

8.18.3.8.1 Attributes

#Attribute Type Description
IfcProductRepresentation
1Name OPTIONAL IfcLabel The word or group of words by which the product representation is known.
2Description OPTIONAL IfcText The word or group of words that characterize the product representation. It can be used to add additional meaning to the name of the product representation.
3RepresentationsLIST [1:?] OF IfcRepresentationContained list of representations (including shape representations). Each member defines a valid representation of a particular type within a particular representation context.

8.18.3.8.2 Entity inheritance

dot_inheritance IfcMaterialDefinitionRepresentation IfcMaterialDefinitionRepresentation IfcProductRepresentation IfcProductRepresentation IfcMaterialDefinitionRepresentation->IfcProductRepresentation IfcProductDefinitionShape IfcProductDefinitionShape IfcProductDefinitionShape->IfcProductRepresentation

8.18.3.8.3 Formal representations

ENTITY IfcProductRepresentation
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcMaterialDefinitionRepresentation
	,IfcProductDefinitionShape));
	Name : OPTIONAL IfcLabel;
	Description : OPTIONAL IfcText;
	Representations : LIST [1:?] OF IfcRepresentation;
END_ENTITY;