5.4.3.45 IfcRelAdheresToElement
5.4.3.45.1 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:
- existence dependency - the RelatedSurfaceFeature cannot exist without the RelatingElement
- hierarchical and non-cyclical relationship - the IfcRelAdheresToElement can only alter a single IfcElement
- no spatial containment - the IfcSurfaceFeature as related element never participates in the hierarchical spatial containment relationship IfcRelContainedInSpatialStructure
5.4.3.45.2 Entity inheritance
5.4.3.45.3 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. |
| Click to show 4 hidden inherited attributes Click to hide 4 inherited attributes | |||
| 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. |
5.4.3.45.4 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. |
|
| Click to show 2 hidden inherited concepts Click to hide 2 inherited concepts | |||
5.4.3.45.5 Formal representation
ENTITY IfcRelAdheresToElement
SUBTYPE OF (IfcRelDecomposes);
RelatingElement : IfcElement;
RelatedSurfaceFeatures : SET [1:?] OF IfcSurfaceFeature;
END_ENTITY;