Definiert durch Merkmale - Relation: Relation zwischen einem Objekt und dessen beschreibenden Merkmalen | |
Rel Defines By Properties | |
Définition par propriétés |
Item | SPF | XML | Change | Description |
---|---|---|---|---|
IFC2x3 to IFC4 | ||||
IfcRelDefinesByProperties | ||||
OwnerHistory | MODIFIED | Instantiation changed to OPTIONAL. | ||
RelatedObjects | X | X | MODIFIED | Type changed from IfcObject to IfcObjectDefinition. |
RelatingPropertyDefinition | MODIFIED | Type changed from IfcPropertySetDefinition to IfcPropertySetDefinitionSelect. |
The objectified relationship IfcRelDefinesByProperties defines the relationships between property set definitions and objects. Properties are aggregated in property sets. Property sets can be either directly assigned to occurrence objects using this relationship, or assigned to an object type and assigned via that type to occurrence objects.
The IfcRelDefinesByProperties is an N-to-N relationship, as it allows for the assignment of one or more property sets to one or more objects. Those objects then share the same property definition.
HISTORY New entity in IFC2.0. Has been renamed from IfcRelAssignsProperties in IFC2x.
IFC4 CHANGE The attribute RelatedObjects had been demoted from the supertype IfcRelDefines to IfcRelDefinesByProperties. This relationship has been modified to support multiple property sets referenced by a single relationship.
# | Attribute | Type | Cardinality | Description | C |
---|---|---|---|---|---|
5 | RelatedObjects | IfcObjectDefinition | S[1:?] | Reference to the objects (or single object) to which the property definition applies. | X |
6 | RelatingPropertyDefinition | IfcPropertySetDefinitionSelect | [1:1] | Reference to the property set definition for that object or set of objects. | X |
# | Attribute | Type | Cardinality | Description | C |
---|---|---|---|---|---|
IfcRoot | |||||
1 | GlobalId | IfcGloballyUniqueId | [1:1] | Assignment of a globally unique identifier within the entire software world. | X |
2 | OwnerHistory | IfcOwnerHistory | [0:1] |
Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object,
NOTE only the last modification in stored - either as addition, deletion or modification. | X |
3 | Name | IfcLabel | [0:1] | Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule. | X |
4 | Description | IfcText | [0:1] | Optional description, provided for exchanging informative comments. | X |
IfcRelationship | |||||
IfcRelDefines | |||||
IfcRelDefinesByProperties | |||||
5 | RelatedObjects | IfcObjectDefinition | S[1:?] | Reference to the objects (or single object) to which the property definition applies. | X |
6 | RelatingPropertyDefinition | IfcPropertySetDefinitionSelect | [1:1] | Reference to the property set definition for that object or set of objects. | X |
# | Concept | Model View |
---|---|---|
IfcRoot | ||
Software Identity | Common Use Definitions | |
Revision Control | Common Use Definitions |
<xs:element name="IfcRelDefinesByProperties" type="ifc:IfcRelDefinesByProperties" substitutionGroup="ifc:IfcRelDefines" nillable="true"/>
<xs:complexType name="IfcRelDefinesByProperties">
<xs:complexContent>
<xs:extension base="ifc:IfcRelDefines">
<xs:sequence>
<xs:element name="RelatingPropertyDefinition">
<xs:complexType>
<xs:group ref="ifc:IfcPropertySetDefinitionSelect"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
ENTITY IfcRelDefinesByProperties
SUBTYPE OF (IfcRelDefines);
RelatedObjects : SET [1:?] OF IfcObjectDefinition;
RelatingPropertyDefinition : IfcPropertySetDefinitionSelect;
END_ENTITY;