Figure 27 — Spatial Composition
Provision of a spatial structure of the project by aggregating spatial structure elements. The spatial structure is a hierarchical tree of spatial structure elements (site, building, storey, space) ultimately assigned to the project. Composition refers to the relationship to a higher level element (e.g. this storey is part of a building).
The order of spatial structure elements being included in the concept are from high to low level: IfcProject, IfcSite, IfcBuilding, IfcBuildingStorey, IfcSpace. Therefore an spatial structure element can only be part of an element at the same or higher level.
Figure 27 illustrates an instance diagram.
|
Figure 27 — Spatial Composition |
| Entity |  |
|---|---|
| IfcBuilding | R R |
| IfcBuildingStorey | R R |
| IfcSite | R R |
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