Class Ifc4x3_rc1::IfcDuctFitting

Nested Relationships

This class is a nested type of Struct Ifc4x3_rc1.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4x3_rc1::IfcDuctFitting : public Ifc4x3_rc1::IfcFlowFitting

A duct fitting is a junction or transition in a ducted flow distribution system or used to connect duct segments, resulting changes in flow characteristics to the fluid such as direction and flow rate.

HISTORY New entity in IFC2x4

Type Use Definition IfcDuctFitting defines the occurrence of any duct fitting; common information about duct fitting types is handled by IfcDuctFittingType. The IfcDuctFittingType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcDuctFittingType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcDuctFittingType has ports or aggregated elements, such objects are reflected at the IfcDuctFitting occurrence using the IfcRelDefinesByObject relationship.

Property Use Definition The property sets relating to this entity are defined by IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. Property sets may also be specified at the IfcDuctFittingType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcDuctFittingType.HasPropertySets. If both are given, then the properties directly defined at IfcDuctFitting override the properties defined at IfcDuctFittingType. Refer to the documentation at the supertype IfcFlowFitting and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: Pset_DuctFittingOccurrence (PSET_OCCURRENCEDRIVEN) Pset_DuctFittingPHistory (PSET_PERFORMANCEDRIVEN) Pset_DuctFittingTypeCommon (PSET_TYPEDRIVENOVERRIDE)

Quantity Use Definition The quantities relating to this entity are defined by IfcElementQuantity and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. The following base quantities are defined and shall be exchanged with the IfcElementQuantity.Name = ‘BaseQuantities’. Other quantities, being subjected to local standard of measurement, may be defined with another string value assigned to Name. In this case a valid value for MethodOfMeasurement shall be provided.

Qto_DuctFittingBaseQuantities

Material Use Definition The material of the IfcDuctFitting is defined by IfcMaterialProfileSetUsage or as a fallback by IfcMaterial, and attached by the RelatingMaterial attribute on the IfcRelAssociatesMaterial relationship. It is accessible by the HasAssociations inverse attribute. Material information can also be given at the IfcDuctFittingType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialProfileSet.MaterialProfiles[n].Name shall be used:

Body: Material from which the duct fitting is constructed. Coating: The outer coating, if applicable. Insulation: The insulating wrapping, if applicable. Lining: The inner lining, if applicable.

Port Use Definition The distribution ports relating to the IfcDuctFitting are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the duct fitting occurrence is defined by IfcDuctFittingType, then the port occurrences must reflect those defined at the IfcDuctFittingType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcDuctFitting PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:

BEND

Inlet (NOTDEFINED, SINK): The flow inlet. Outlet (NOTDEFINED, SOURCE): The flow outlet.

CONNECTOR

Inlet (NOTDEFINED, SINK): The flow inlet. Outlet (NOTDEFINED, SOURCE): The flow outlet.

ENTRY

Outlet (NOTDEFINED, SOURCE): The flow outlet.

EXIT

Inlet (NOTDEFINED, SINK): The flow inlet.

JUNCTION

Inlet (NOTDEFINED, SINK): The flow inlet. Outlet#1 (NOTDEFINED, SOURCE): The first flow outlet. Outlet#2 (NOTDEFINED, SOURCE): The second flow outlet.

OBSTRUCTION

Inlet (NOTDEFINED, SINK): The flow inlet. Outlet (NOTDEFINED, SOURCE): The flow outlet.

Figure 221 illustrates duct fitting port use. Figure 221 — Duct fitting port use

Public Types

typedef IfcTemplatedEntityList<IfcDuctFitting> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcDuctFitting.

::Ifc4x3_rc1::IfcDuctFittingTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4x3_rc1::IfcDuctFittingTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcDuctFitting(IfcEntityInstanceData *e)
IfcDuctFitting(std::string v1_GlobalId, ::Ifc4x3_rc1::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4x3_rc1::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4x3_rc1::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4x3_rc1::IfcDuctFittingTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()