IFC 4.3.x development

6.1.3.39 IfcRelCoversSpaces

Change log

IFC4

modificationsattributes RelatedSpace nameChanged from RelatedSpace to RelatingSpace

6.1.3.39.1 Semantic definitions at the entity

The objectified relationship, IfcRelCoversSpace, relates a space object to one or many coverings, which faces (or is assigned to) the space.

NOTE  Particularly floorings, ceilings and wall coverings, such as claddings or tiling are often considered as space coverings, rather then wall or slab coverings. In some life cycle phases, such as the operation phase, the relationship is always made to the space.

The IFC specification provides two relationships:

Whether the relationship between the covering and the space, or between the covering and the element, is regarded as primary, has to be determined within the context of a model view definition.

HISTORY  New entity in IFC2x3.

DEPRECATION  The relationship IfcRelCoversSpace shall not be used anymore, use IfcRelContainedInSpatialStructure instead.

6.1.3.39.1 Attributes

#Attribute Type Description
IfcRoot
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.
IfcRelationship
IfcRelConnects
IfcRelCoversSpaces
5RelatingSpace IfcSpace Relationship to the space object that is covered.

> IFC4 CHANGE  The attribute name has been changed from RelatedSpace to RelatingSpace with upward compatibility for file based exchange.
6RelatedCoveringsSET [1:?] OF IfcCoveringRelationship to the set of coverings covering that cover surfaces of this space.

6.1.3.39.2 Entity inheritance

dot_inheritance IfcRelCoversSpaces IfcRelCoversSpaces IfcRelConnects IfcRelConnects IfcRelCoversSpaces->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

6.1.3.39.3 Definitions applying to General Usage

6.1.3.39.3.1 Identity

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

6.1.3.39.3.2 Revision Control

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

6.1.3.39.4 Formal representations

ENTITY IfcRelCoversSpaces
 SUBTYPE OF (IfcRelConnects);
	RelatingSpace : IfcSpace;
	RelatedCoverings : SET [1:?] OF IfcCovering;
END_ENTITY;