#### 5.1.3.32 IfcRelDefinesByTemplate

| Définition par modèle
| Definiert durch Vorlage - Relation: Relation zwischen einem Merkmal und dessen Definition / Schablone

The objectified relationship IfcRelDefinesByTemplate defines the relationships between property set template and property sets. Common information about property sets, e.g. the applicable name, description, contained properties, is defined by the property set template and assigned to all property sets.

> NOTE The assignment of an IfcPropertySetTemplate is supported for IfcPropertySet and IfcQuantitySet.

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

> HISTORY New entity in IFC4.

XSD Specification:

<xs:element name="IfcRelDefinesByTemplate" type="ifc:IfcRelDefinesByTemplate" substitutionGroup="ifc:IfcRelDefines" nillable="true"/>
<xs:complexType name="IfcRelDefinesByTemplate">
<xs:complexContent>
<xs:extension base="ifc:IfcRelDefines">
<xs:sequence>
<xs:element name="RelatedPropertySets">
<xs:complexType>
<xs:sequence>
<xs:element ref="ifc:IfcPropertySetDefinition" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute ref="ifc:itemType" fixed="ifc:IfcPropertySetDefinition"/>
<xs:attribute ref="ifc:cType" fixed="set"/>
<xs:attribute ref="ifc:arraySize" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="RelatingTemplate" type="ifc:IfcPropertySetTemplate" nillable="true"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>

EXPRESS Specification:

ENTITY IfcRelDefinesByTemplate

| SUBTYPE OF IfcRelDefines;

RelatedPropertySets | : | SET [1:?] OF IfcPropertySetDefinition;
RelatingTemplate | : | IfcPropertySetTemplate;

END_ENTITY;

EXPRESS-G diagram

Attribute Definitions:

RelatedPropertySets | : | One or many property sets or quantity sets that obtain their definitions from the single property set template.
RelatingTemplate | : | Property set template that provides the common definition of related property sets.

Inheritance Graph:

ENTITY IfcRelDefinesByTemplate

| ENTITY IfcRoot

GlobalId | : | IfcGloballyUniqueId;
OwnerHistory | : | OPTIONAL IfcOwnerHistory;
Name | : | OPTIONAL IfcLabel;
Description | : | OPTIONAL IfcText;

| ENTITY IfcRelationship

| ENTITY IfcRelDefines

| ENTITY IfcRelDefinesByTemplate

RelatedPropertySets | : | SET [1:?] OF IfcPropertySetDefinition;
RelatingTemplate | : | IfcPropertySetTemplate;

END_ENTITY;

Examples:

- Air terminal library object

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