Class Ifc4::IfcStackTerminal

Nested Relationships

This class is a nested type of Struct Ifc4.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4::IfcStackTerminal : public Ifc4::IfcFlowTerminal

A stack terminal is placed at the top of a ventilating stack (such as to prevent ingress by birds or rainwater) or rainwater pipe (to act as a collector or hopper for discharge from guttering).

HISTORY New entity in IFC2x4

Type Use Definition IfcStackTerminal defines the occurrence of any stack terminal; common information about stack terminal types is handled by IfcStackTerminalType. The IfcStackTerminalType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcStackTerminalType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcStackTerminalType has ports or aggregated elements, such objects are reflected at the IfcStackTerminal 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 IfcStackTerminalType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcStackTerminalType.HasPropertySets. If both are given, then the properties directly defined at IfcStackTerminal override the properties defined at IfcStackTerminalType. Refer to the documentation at the supertype IfcFlowTerminal and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: Pset_StackTerminalTypeCommon (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.


Material Use Definition The material of the IfcStackTerminal is defined by IfcMaterialConstituentSet 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 IfcStackTerminalType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:

Body: The primary material from which the object is constructed.

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


Exhaust (EXHAUST, SINK): Exhaust inlet.


Exhaust (EXHAUST, SINK): Exhaust inlet.


Rain (RAINWATER, SOURCE): Rainwater outlet.

Public Types

typedef IfcTemplatedEntityList<IfcStackTerminal> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcStackTerminal.

::Ifc4::IfcStackTerminalTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4::IfcStackTerminalTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcStackTerminal(IfcEntityInstanceData *e)
IfcStackTerminal(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::IfcStackTerminalTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()