IfcVertexPoint

Definition from ISO/CD 10303-42:1992: A vertex point is a vertex which has its geometry defined as a point.

> NOTE: Corresponding STEP entity: vertex_point. Please refer to ISO/IS 10303-42:1994, p. 130 for the final definition of the formal standard. Due to the general IFC model specification rule not to use multiple inheritance, the subtype relationship to geometric_representation_item is not included.

> HISTORY: New Entity in IFC Release 2x.

Informal proposition:

1. The domain of the vertex is formally defined to be the domain of its vertex point.

EXPRESS specification:

ENTITY IfcVertexPoint
SUBTYPE OF ( | IfcVertex);
VertexGeometry | : | IfcPoint;
END_ENTITY;

Attribute definitions:

VertexGeometry | : | The geometric point, which defines the position in geometric space of the vertex.

Inheritance graph

ENTITY IfcVertexPoint;
ENTITY IfcRepresentationItem;
INVERSE
LayerAssignments | : | SET OF IfcPresentationLayerAssignment FOR AssignedItems;
StyledByItem | : | SET [0:1] OF IfcStyledItem FOR Item;
ENTITY IfcTopologicalRepresentationItem;
ENTITY IfcVertex;
ENTITY IfcVertexPoint;
VertexGeometry | : | IfcPoint;
END_ENTITY;