Class Ifc2x3::IfcCurve

Nested Relationships

This class is a nested type of Struct Ifc2x3.

Inheritance Relationships

Base Type

Derived Types

Class Documentation

class Ifc2x3::IfcCurve : public Ifc2x3::IfcGeometricRepresentationItem

Definition from ISO/CD 10303-42:1992: A curve can be envisioned as the path of a point moving in its coordinate space.

NOTE: Corresponding ISO 10303 entity: curve, only the following subtypes have been incorporated into IFC: line as IfcLine, conic as IfcConic, bounded_curve as IfcBoundedCurve. Please refer to ISO/IS 10303-42:1994, p.37 for the final definition of the formal standard. The derived attribute Dim has been added (see also note at IfcGeometricRepresentationItem).

HISTORY: New entity in IFC Release 1.0

Informal proposition:

A curve shall be arcwise connected A curve shall have an arc length greater than zero.

Subclassed by Ifc2x3::IfcBoundedCurve, Ifc2x3::IfcConic, Ifc2x3::IfcLine, Ifc2x3::IfcOffsetCurve2D, Ifc2x3::IfcOffsetCurve3D

Public Types

typedef IfcTemplatedEntityList<IfcCurve> list

Public Functions

const IfcParse::entity &declaration() const
IfcCurve(IfcEntityInstanceData *e)

Public Static Functions

const IfcParse::entity &Class()