Assignation à ressource
Weist Ressource zu - Relation

The objectified relationship IfcRelAssignsToResource handles the assignment of objects (as subtypes of IfcObject), acting as a resource usage or consumption, to a resource (as subtypes of IfcResource).

EXAMPLE  The assignment of a resource usage to a construction resource is an application of this generic relationship. It could be an actor, as person or organization assigned to a labor resource, or a raw product assigned to a construction product or material resource).
HISTORY  New entity in IFC2x.

XSD Specification:

 <xs:element name="IfcRelAssignsToResource" type="ifc:IfcRelAssignsToResource" substitutionGroup="ifc:IfcRelAssigns" nillable="true"/>
 <xs:complexType name="IfcRelAssignsToResource">
   <xs:extension base="ifc:IfcRelAssigns">
     <xs:element name="RelatingResource">
       <xs:group ref="ifc:IfcResourceSelect"/>

EXPRESS Specification:

ENTITY IfcRelAssignsToResource
SUBTYPE OF IfcRelAssigns;
RelatingResource : IfcResourceSelect;
NoSelfReference : SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | RelatingResource :=: Temp)) = 0;

Link to EXPRESS-G diagram EXPRESS-G diagram

Attribute Definitions:

RelatingResource : Reference to the resource to which the objects are assigned to.
IFC4 CHANGE Datatype expanded to include IfcResource and IfcTypeResource.

Formal Propositions:

NoSelfReference : The instance to with the relation points shall not be contained in the set of RelatedObjects.

Inheritance Graph:

ENTITY IfcRelAssignsToResource
GlobalId : IfcGloballyUniqueId;
OwnerHistory : OPTIONAL IfcOwnerHistory;
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
ENTITY IfcRelationship
ENTITY IfcRelAssigns
RelatedObjects : SET [1:?] OF IfcObjectDefinition;
RelatedObjectsType : OPTIONAL IfcObjectTypeEnum;
ENTITY IfcRelAssignsToResource
RelatingResource : IfcResourceSelect;

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