4.1.7.5.1 Reference Topology

Structural activities may have a 'Reference' representation describing the distribution of a load.

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 table below shows a recommended list of general usage patterns that users may adopt.

Figure 4.1.7.5.1.A

General Usage

ApplicableEntity	Topology IfcTopologyRepresentation.Items
IfcStructuralCurveConnection	IfcEdge
IfcStructuralCurveMember	IfcEdge
IfcStructuralPointConnection	IfcVertexPoint
IfcStructuralSurfaceMember	IfcFaceSurface

Table 4.1.7.5.1.B