IfcCartesianPointList

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcCartesianPointList			ADDED

Semantic definitions at the entity

Entity definition

The IfcCartesianPointList is the abstract supertype of list of points.

NOTE The IfcCartesianPointList is introduced to provide a compact representation of potentially larger list of points, such as in point clouds, and in indexable representation of points.

HISTORY New entity in IFC4.

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
	Dim :=IfcPointListDim(SELF)	IfcDimensionCount		The space dimensionality of this class, either 2 or 3, depending on the sub type.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	G
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. 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
	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. IFC2x3 CHANGE The inverse attribute StyledByItem has been added.	X
IfcGeometricRepresentationItem
IfcCartesianPointList
	Dim :=IfcPointListDim(SELF)	IfcDimensionCount		The space dimensionality of this class, either 2 or 3, depending on the sub type.	X

Formal representations

XML Specification

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

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

  <xs:complexContent>

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

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcCartesianPointList

 ABSTRACT SUPERTYPE OF(ONEOF(IfcCartesianPointList2D, IfcCartesianPointList3D))

 SUBTYPE OF (IfcGeometricRepresentationItem);

 DERIVE

  Dim : IfcDimensionCount := IfcPointListDim(SELF);

END_ENTITY;

 EXPRESS-G diagram

	Liste von Kartesischen Punkten
	Cartesian Point List
	Liste de points cartésiens