Class Ifc4::IfcPipeFitting

Nested Relationships

This class is a nested type of Struct Ifc4.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4::IfcPipeFitting : public Ifc4::IfcFlowFitting

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

HISTORY New entity in IFC2x4

Type Use Definition IfcPipeFitting defines the occurrence of any pipe fitting; common information about pipe fitting types is handled by IfcPipeFittingType. The IfcPipeFittingType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcPipeFittingType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcPipeFittingType has ports or aggregated elements, such objects are reflected at the IfcPipeFitting 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 IfcPipeFittingType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcPipeFittingType.HasPropertySets. If both are given, then the properties directly defined at IfcPipeFitting override the properties defined at IfcPipeFittingType. 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: (All Types)

Pset_PipeFittingOccurrence (PSET_OCCURRENCEDRIVEN) Pset_PipeFittingPHistory (PSET_PERFORMANCEDRIVEN) Pset_PipeFittingTypeCommon (PSET_TYPEDRIVENOVERRIDE)

BEND

Pset_PipeFittingTypeBend (PSET_TYPEDRIVENOVERRIDE)

JUNCTION

Pset_PipeFittingTypeJunction (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_PipeFittingBaseQuantities

Material Use Definition The material of the IfcPipeFitting 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 IfcPipeFittingType, 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 pipe 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 IfcPipeFitting are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the pipe fitting occurrence is defined by IfcPipeFittingType, then the port occurrences must reflect those defined at the IfcPipeFittingType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcPipeFitting 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 227 illustrates pipe fitting port use. Figure 227 — Pipe fitting port use

Public Types

typedef IfcTemplatedEntityList<IfcPipeFitting> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcPipeFitting.

::Ifc4::IfcPipeFittingTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4::IfcPipeFittingTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcPipeFitting(IfcEntityInstanceData *e)
IfcPipeFitting(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, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4::IfcPipeFittingTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()