IFC 4.3.x development IfcRelFillsElement Semantic definitions at the entity

IfcRelFillsElement is an objectified relationship between an opening element and an element that fills (or partially fills) the opening element. It is an one-to-one relationship.

NOTE  View definitions or implementer agreements may restrict an opening to be filled by one filling element only.

As shown in Figure 1, the insertion of a door into a wall is represented by two separate relationships. First the door opening is created within the wall by IfcWall(StandardCase) <-- IfcRelVoidsElement --> IfcOpeningElement, then the door is inserted within the opening by IfcOpeningElement <-- IfcRelFillsElement --> IfcDoor.


"relationships for filling"

HISTORY  New entity in IFC1.0 Attributes

#Attribute Type Description
1GlobalId IfcGloballyUniqueId Assignment of a globally unique identifier within the entire software world.
2OwnerHistory OPTIONAL IfcOwnerHistoryAssignment 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.
3Name 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.
4Description OPTIONAL IfcText Optional description, provided for exchanging informative comments.
5RelatingOpeningElementIfcOpeningElement Opening Element being filled by virtue of this relationship.
6RelatedBuildingElementIfcElement Reference to ~~building~~ element that occupies fully or partially the associated opening.

> IFC2x CHANGE  The data type has been changed from IfcBuildingElement to IfcElement with upward compatibility for file based exchange. Entity inheritance

dot_inheritance IfcRelFillsElement IfcRelFillsElement IfcRelConnects IfcRelConnects IfcRelFillsElement->IfcRelConnects IfcRelConnects_children 15 more... IfcRelConnects_children->IfcRelConnects IfcRelationship IfcRelationship IfcRelConnects->IfcRelationship IfcRelationship_children 5 more... IfcRelationship_children->IfcRelationship IfcRoot IfcRoot IfcRelationship->IfcRoot IfcObjectDefinition IfcObjectDefinition IfcObjectDefinition->IfcRoot IfcPropertyDefinition IfcPropertyDefinition IfcPropertyDefinition->IfcRoot Definitions applying to General Usage Identity

IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept. Revision Control

Ownership, history, and merge state is captured using IfcOwnerHistory. Formal representations

ENTITY IfcRelFillsElement
 SUBTYPE OF (IfcRelConnects);
	RelatingOpeningElement : IfcOpeningElement;
	RelatedBuildingElement : IfcElement;