8.18.3.8 IfcProductRepresentation

Représentation du produit
Produkt - Repräsentation

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.

XSD Specification:

 <xs:element name="IfcProductRepresentation" type="ifc:IfcProductRepresentation" abstract="true" substitutionGroup="ifc:Entity" nillable="true"/>
 <xs:complexType name="IfcProductRepresentation" abstract="true">
  <xs:complexContent>
   <xs:extension base="ifc:Entity">
    <xs:sequence>
     <xs:element name="Representations">
      <xs:complexType>
       <xs:sequence>
        <xs:element ref="ifc:IfcRepresentation" maxOccurs="unbounded"/>
       </xs:sequence>
       <xs:attribute ref="ifc:itemType" fixed="ifc:IfcRepresentation"/>
       <xs:attribute ref="ifc:cType" fixed="list"/>
       <xs:attribute ref="ifc:arraySize" use="optional"/>
      </xs:complexType>
     </xs:element>
    </xs:sequence>
    <xs:attribute name="Name" type="ifc:IfcLabel" use="optional"/>
    <xs:attribute name="Description" type="ifc:IfcText" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>

EXPRESS Specification:

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

Link to EXPRESS-G diagram EXPRESS-G diagram

Attribute Definitions:

Name : The word or group of words by which the product representation is known.
Description : 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.
Representations : Contained list of representations (including shape representations). Each member defines a valid representation of a particular type within a particular representation context.

Inheritance Graph:

ENTITY IfcProductRepresentation
ENTITY IfcProductRepresentation
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
Representations : LIST [1:?] OF IfcRepresentation;
END_ENTITY;

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