8.9.3.47 IfcPoint

RV ⓘ

AbV ⓘ

ABSTRACT This definition may not be instantiated

8.9.3.47.1 Semantic definition

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

8.9.3.47.2 Entity inheritance

8.9.3.47.3 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. 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.
	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. IFC2x3-CHANGE The inverse attribute StyledByItem has been added.
Click to show 2 hidden inherited attributes
IfcPoint (1)
*	Dim	IfcDimensionCount	This attribute is formally derived. `IfcPointDim(SELF)` The space dimensionality of this abstract class, handled by a function specific for concrete subtypes. Determined by the number of coordinate components in case of IfcCartesianPoint or by the dimensionality of the basis curve or surface in other cases.

Table 8.9.3.47.A

8.9.3.47.4 Formal representation

 ENTITY IfcPoint
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcCartesianPoint
	,IfcPointByDistanceExpression
	,IfcPointOnCurve
	,IfcPointOnSurface))
 SUBTYPE OF (IfcGeometricRepresentationItem);
 DERIVE
	 Dim : IfcDimensionCount := IfcPointDim(SELF);
END_ENTITY;

	ENTITY IfcPoint
	ABSTRACT SUPERTYPE OF (ONEOF
	(IfcCartesianPoint
	,IfcPointByDistanceExpression
	,IfcPointOnCurve
	,IfcPointOnSurface))
	SUBTYPE OF (IfcGeometricRepresentationItem);
	DERIVE
	Dim : IfcDimensionCount := IfcPointDim(SELF);
	END_ENTITY;

8.9.3.47 IfcPoint

8.9.3.47.1 Semantic definition

8.9.3.47.2 Entity inheritance

8.9.3.47.3 Attributes

8.9.3.47.4 Formal representation

8.9.3.47.5 References