IfcPoint

Natural language names
Punkt
Point
Point
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 Rm, 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 IfcCartesianPoint IfcPointOnCurve IfcPointOnSurface IfcGeometricRepresentationItem IfcRepresentationItem
Attribute inheritance
#AttributeTypeCardinalityDescriptionG
IfcRepresentationItem
LayerAssignmentIfcPresentationLayerAssignment
@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.
IFC2x3 CHANGE  The inverse attribute LayerAssignments has been added.
IFC4 CHANGE  The inverse attribute LayerAssignment has been restricted to max 1. Upward compatibility for file based exchange is guaranteed.
X
StyledByItemIfcStyledItem
@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.
IFC2x3 CHANGE  The inverse attribute StyledByItem has been added.
X
IfcGeometricRepresentationItem
IfcPoint
Formal representations
XML 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;

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcPointOrVertexPoint IfcGeometricSetSelect IfcVertexPoint

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