IFC (IFC4X3_ADD2) under development IfcRelAdheresToElement Semantic definition

The IfcRelAdheresToElement is an objectified relationship between an element and one to many surface feature elements that adhere to the surface of the element. The relationship is defined to be a 1 to many relationship. The IfcRelAdheresToElement establishes an aggregation relationship between the main element and a sub ordinary surface feature.

The IfcRelAdheresToElement implies a surface interface between the geometric bodies of the element and the surface feature . As with all decomposition relationships it determines: Entity inheritance Attributes

# Attribute Type Description
IfcRoot (4)
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,

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.

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IfcRelAdheresToElement (2)
5 RelatingElement IfcElement

Element to which the IfcSurfaceFeature is adhered to.

6 RelatedSurfaceFeatures SET [1:?] OF IfcSurfaceFeature

The IfcSurfaceFeature(s) that adheres to the surface of the parent element.

Table Concept usage

Concept Usage Description
IfcRoot (2)
Revision Control General

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

Software Identity General

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

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Table Formal representation

ENTITY IfcRelAdheresToElement
 SUBTYPE OF (IfcRelDecomposes);
	RelatingElement : IfcElement;
	RelatedSurfaceFeatures : SET [1:?] OF IfcSurfaceFeature;
END_ENTITY; References

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