IFC 4.3.0.1 (IFC4X3_TC1)

4.4.4.3 Object Nesting

General object nesting indicates an ordered arrangement relationship.

The following diagram shows the generic classes and relationships used when applying this concept. In addition, concepts may have particular importance to common or standardised industry practices and scenarios. For these specific usage scenarios, the tables below shows a recommended list of general usage patterns that users may adopt.

G IfcObjectDefinition IfcObjectDefinition 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] IfcRelNests IfcRelNests 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingObject [1:1] Type 6. RelatedObjects [1:?] IfcObjectDefinition:IsNestedBy1->IfcRelNests:RelatingObject0 IfcObject IfcObject 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] IfcRelNests:RelatedObjects1->IfcObject:IfcObject0
Figure 4.4.4.3.A

General Usage

ApplicableEntity
Type
IfcRelNests.RelatedObjects
IfcActionRequest IfcActionRequest
IfcAlignment IfcReferent
IfcConstructionResourceIfcConstructionResource
IfcCostItem IfcCostItem
IfcPermit IfcPermit
IfcProjectOrder IfcProjectOrder
IfcTask IfcEvent
IfcProcedure IfcTask
IfcTask IfcTask
IfcTask IfcProcedure
IfcTaskType IfcTask
IfcWorkSchedule IfcWorkSchedule
Table 4.4.4.3.B