Class Ifc4::IfcStructuralCurveConnection

Nested Relationships

This class is a nested type of Struct Ifc4.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4::IfcStructuralCurveConnection : public Ifc4::IfcStructuralConnection

Definition from IAI: Instances of IfcStructuralCurveConnection describe edge ‘nodes’, i.e. edges where two or more surface members are joined, or edge supports. Edge curves may be straight or curved.

HISTORY: New entity in IFC 2x2.

IFC 2x4 change: Attribute Axis added, allowing for skewed supports. Use definitions added.

Coordinate Systems:

See definitions at IfcStructuralItem. The local coordinate system is established by the reference curve given by topology representation and by the attribute Axis. The local x axis is parallel with the tangent on the reference curve. The local z axis is located in the surface which is created by sweeping Axis along the reference curve and is directed according to Axis. The local y axis is directed such that x,y,z form a right-handed Cartesian coordinate system.

Topology Use Definitions:

Instances of IfcStructuralCurveConnection shall have a topology representation which consists of one instance of IfcEdge or a subtype, representing the reference curve of the curve connection. See definitions at IfcStructuralItem for further specifications.

Informal propositions:

The reference curve must not be parallel with Axis at any point within the curve connections’s domain.

Public Types

typedef IfcTemplatedEntityList<IfcStructuralCurveConnection> list

Public Functions

::Ifc4::IfcDirection *Axis() const

Direction which is used in the definition of the local z axis. Axis is specified relative to the so-called global coordinate system, i.e. the SELF\IfcProduct.ObjectPlacement.

NOTE It is desirable and usually possible that many instances of IfcStructuralCurveConnection and IfcStructuralCurveMember share a common instance of IfcDirection as their Axis attribute.

void setAxis(::Ifc4::IfcDirection *v)
const IfcParse::entity &declaration() const
IfcStructuralCurveConnection(IfcEntityInstanceData *e)
IfcStructuralCurveConnection(std::string v1_GlobalId, ::Ifc4::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4::IfcProductRepresentation *v7_Representation, ::Ifc4::IfcBoundaryCondition *v8_AppliedCondition, ::Ifc4::IfcDirection *v9_Axis)

Public Static Functions

const IfcParse::entity &Class()