IfcPoint

Semantic definitions at the entity

Entity definition

The IfcPoint is the abstract generalisation of all point representations within a Cartesian coordinate system.

NOTE Definition according to ISO/CD 10303-42:1992
A point is a location in some real Cartesian coordinate space R^m, for m = 1, 2 or 3.

NOTE Entity adapted from point in ISO 10303-42.

HISTORY New entity in IFC1.5

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcRepresentationItem
	LayerAssignment	IfcPresentationLayerAssignment @AssignedItems	S[0:1]	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.	X
	StyledByItem	IfcStyledItem @Item	S[0:1]	Reference to the IfcStyledItem that provides presentation information to the representation, e.g. a curve style, including colour and thickness to a geometric curve.	X
IfcGeometricRepresentationItem
IfcPoint

Formal representations

XSD Specification

 <xs:element name="IfcPoint" type="ifc:IfcPoint" abstract="true" substitutionGroup="ifc:IfcGeometricRepresentationItem" nillable="true"/>

 <xs:complexType name="IfcPoint" abstract="true">

  <xs:complexContent>

   <xs:extension base="ifc:IfcGeometricRepresentationItem"/>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcPoint

 ABSTRACT SUPERTYPE OF(ONEOF(IfcCartesianPoint, IfcPointOnCurve, IfcPointOnSurface))

 SUBTYPE OF (IfcGeometricRepresentationItem);

END_ENTITY;

 EXPRESS-G diagram

	Punkt
	Point
	Point