IfcBoundedCurve

Semantic definitions at the entity

Entity definition

An IfcBoundedCurve is a curve of finite length.

NOTE Definition according to ISO/CD 10303-42:1992
A bounded curve is a curve of finite arc length with identifiable end points.

NOTE Entity adapted from bounded_curve defined in ISO10303-42.

HISTORY New entity in IFC1.0

Informal Propositions:

A bounded curve has finite arc length.
A bounded curve has a start point and an end point.

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
IfcCurve
	Dim :=IfcCurveDim(SELF)	IfcDimensionCount	[1:1]	The space dimensionality of this abstract class, defined differently for all subtypes, i.e. for IfcLine, IfcConic and IfcBoundedCurve.	X
IfcBoundedCurve

Formal representations

XSD Specification

 <xs:element name="IfcBoundedCurve" type="ifc:IfcBoundedCurve" abstract="true" substitutionGroup="ifc:IfcCurve" nillable="true"/>

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

  <xs:complexContent>

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

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcBoundedCurve

 ABSTRACT SUPERTYPE OF(ONEOF(IfcBSplineCurve, IfcCompositeCurve, IfcIndexedPolyCurve, IfcPolyline, IfcTrimmedCurve))

 SUBTYPE OF (IfcCurve);

END_ENTITY;

 EXPRESS-G diagram

	Begrenzte Kurve
	Bounded Curve
	Courbe englobée