IFC 4.3.0.1 (IFC4X3) development

8.20.3.16 IfcSubedge

8.20.3.16.1 Semantic definition

Informal Propositions:

  1. The domain of the subedge is formally defined to be the domain of the parent edge, as trimmed by the subedge start vertex and subedge end vertex.
  2. The start vertex and end vertex shall be within the union of the domains of the vertices of the parent edge and the domain of the parent edge.

8.20.3.16.2 Entity inheritance

8.20.3.16.3 Attributes

# Attribute Type Description
IfcRepresentationItem (2)
LayerAssignment SET [0:1] OF IfcPresentationLayerAssignment FOR AssignedItems

Assignment of the representation item to a single or multiple layer(s). The LayerAssignments can override a LayerAssignments of the IfcRepresentation it is used within the list of Items.

StyledByItem SET [0:1] OF IfcStyledItem FOR Item

Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve.

IfcEdge (2)
1 EdgeStart IfcVertex

Start point (vertex) of the edge.

2 EdgeEnd IfcVertex

End point (vertex) of the edge. The same vertex can be used for both EdgeStart and EdgeEnd.

Click to show 4 hidden inherited attributes Click to hide 4 inherited attributes
IfcSubedge (1)
3 ParentEdge IfcEdge

The Edge, or Subedge, which contains the Subedge.

Table 8.20.3.16.A

8.20.3.16.4 Formal representation

ENTITY IfcSubedge
 SUBTYPE OF (IfcEdge);
	ParentEdge : IfcEdge;
END_ENTITY;

8.20.3.16.5 References

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