The IfcRelAssignsToActor objectified relationship defines a relationship between an IfcActor and one or many objects. A particular role of the actor played in that relationship can be associated. If specified, it takes priority over the role that may be directly assigned to the person or organization.
EXAMPLE An occupant (as an actor) may rent a flat (as a collection of spaces or a zone). This would be an application of this generic relationship.
Reference to the objects (or single object) on which the actor acts upon in a certain role (if given) is specified in the inherited RelatedObjects attribute.
HISTORY New entity in IFC2.0. Has been renamed from IfcRelActsUpon in IFC2x.
|1||GlobalId||IfcGloballyUniqueId||Assignment of a globally unique identifier within the entire software world.|
|2||OwnerHistory||OPTIONAL IfcOwnerHistory||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.
> IFC4 CHANGE The attribute has been changed to be OPTIONAL.
|3||Name||OPTIONAL IfcLabel||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.|
|4||Description||OPTIONAL IfcText||Optional description, provided for exchanging informative comments.|
|5||RelatedObjects||SET [1:?] OF IfcObjectDefinition||Related objects, which are assigned to a single object. The type of the single (or relating) object is defined in the subtypes of IfcRelAssigns.|
|6||RelatedObjectsType||OPTIONAL IfcObjectTypeEnum||Particular type of the assignment relationship. It can constrain the applicable object types, used within the role of RelatedObjects.|
> IFC4 CHANGE The attribute is deprecated and shall no longer be used. A NIL value should always be assigned.
|7||RelatingActor||IfcActor||Reference to the information about the actor. It comprises the information about the person or organization and its addresses.|
|8||ActingRole||OPTIONAL IfcActorRole||Role of the actor played within the context of the assignment to the object(s).|
IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.
Ownership, history, and merge state is captured using IfcOwnerHistory.
ENTITY IfcRelAssignsToActor SUBTYPE OF (IfcRelAssigns); RelatingActor : IfcActor; ActingRole : OPTIONAL IfcActorRole; WHERE NoSelfReference : SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | RelatingActor :=: Temp)) = 0; END_ENTITY;