IFC 4.3.0.1 (IFC4X3_TC1)

8.20.3.19 IfcVertexLoop

8.20.3.19.1 Semantic definition

Informal Propositions:

  1. A vertex loop has zero extent and dimensionality.
  2. The vertex loop has genus 0.

8.20.3.19.2 Entity inheritance

8.20.3.19.3 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.

Click to show 2 hidden inherited attributes Click to hide 2 inherited attributes
IfcVertexLoop (1)
1 LoopVertex IfcVertex

The vertex which defines the entire loop.

Table 8.20.3.19.A

8.20.3.19.4 Formal representation

ENTITY IfcVertexLoop
 SUBTYPE OF (IfcLoop);
	LoopVertex : IfcVertex;
END_ENTITY;

8.20.3.19.5 References