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ODA IFC SDK
IfcRelContainedInSpatialStructure Class
Syntax
C++
class IfcRelContainedInSpatialStructure : public IfcRelConnects;

This objectified relationship is used to assign elements to a certain level of the spatial project structure. Any element can only be assigned once to a certain level of the spatial structure. The question, which level is relevant for which type of element, can only be answered within the context of a particular project and might vary within the various regions. 

 

  • EXAMPLE: A multi-storey space is contained (or belongs to) the building storey at which its ground level is, but it is referenced by all the other building storeys, in which it spans. A lift shaft might be contained by the basement, but referenced by all storeys, through which it spans.

 

The containment relationship of an element within a spatial structure has to be a hierarchical relationship; an element can only be contained within a single spatial structure element. The reference relationship between an element and the spatial structure need not be hierarchical; that is, an element can reference many spatial structure elements. 

Predefined spatial structure elements to which elements can be assigned are

  • site as IfcSite
  • building as IfcBuilding
  • storey as IfcBuildingStorey
  • space as IfcSpace

 

Occurrences of the same element type can be assigned to different spatial structure elements depending on the context of the occurrence.

  • EXAMPLE: A wall might be normally assigned to a storey, however the curtain wall might be assigned to the building and the retaining wall in the terrain might be assigned to the site.

 

Example

The next picture shows the use of IfcRelContainedInSpatialStructure to assign a stair and two walls to two different levels within the spatial structure. 

 

The reference relationship is expressed by IfcRelReferencedInSpatialStructure. 

changes 

 

  • IFC2X_FINAL changes: The data type of the attribute RelatedElements has been changed from IfcElement to its supertype IfcProduct with upward compatibility for file-based exchange.
  • IFC4 changes: Type of the RelatingStructure attribute type changed from IfcSpatialStructureElement to IfcSpatialElement.
OdIfc4x3_rc1__IfcRelContainedInSpatialStructureOdIfc4x3_rc1__IfcRelContainedInSpatialStructureOdIfc4x3_rc1__IfcRelContainedInSpatialStructureOdIfc4x3_rc1__IfcRelContainedInSpatialStructureOdIfc4x3_rc1__IfcRelContainedInSpatialStructureOdIfc4x3_rc1__IfcRelContainedInSpatialStructureOdIfc4x3_rc1__IfcRelContainedInSpatialStructureOdIfc4x3_rc1__IfcRelContainedInSpatialStructure

File: IfcRelContainedInSpatialStructureAutoImpl.h 

Namespace: OdIfc4x3_rc1 

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