IFC 4.3.1.0 (IFC4X3_ADD1)

8.9.3.48 IfcPoint

ABSTRACT This definition may not be instantiated

8.9.3.48.1 Semantic definition

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

8.9.3.48.2 Entity inheritance

8.9.3.48.3 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.

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.

Click to show 2 hidden inherited attributes Click to hide 2 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 8.9.3.48.A

8.9.3.48.4 Formal representation

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

8.9.3.48.5 References