IFC 4.3.0.1 (IFC4X3_TC1)

8.20.3.18 IfcVertex

8.20.3.18.1 Semantic definition

Informal Propositions:

  1. The vertex has dimensionality 0. This is a fundamental property of the vertex.
  2. The extent of a vertex is defined to be zero.

8.20.3.18.2 Entity inheritance

8.20.3.18.3 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.

Table 8.20.3.18.A

8.20.3.18.4 Formal representation

ENTITY IfcVertex
 SUPERTYPE OF (ONEOF
	(IfcVertexPoint))
 SUBTYPE OF (IfcTopologicalRepresentationItem);
END_ENTITY;

8.20.3.18.5 References