IfcFilterType

Definition from buildingSMART: The element type IfcFilterType defines a list of commonly shared property set definitions of an element and an optional set of product representations. It is used to define an element specification (i.e. the specific product information, that is common to all occurrences of that product type).

NOTE: The product representations are defined as representation maps (at the level of the supertype IfcTypeProduct, which get assigned by an element occurrence instance through the IfcShapeRepresentation.Item[1] being an IfcMappedItem.

A filter type is used to define the common properties of a filter that may be applied to many occurrences of that type. A filter is an apparatus used to remove particulate or gaseous matter from fluids and gases.

The occurrences of the IfcFilterType are represented by instances of IfcTreatmentDevice or its subtypes.

Property Set Use Definition:

The property sets relating to this entity are defined by the IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. It is accessible by the inverse IsDefinedBy relationship. The following property set definitions specific to this entity are part of this IFC release:

Pset_FilterTypeCommon: common property set for all filter types

Pset_FilterTypeAirParticleFilter: property set for all air particle filter types

NOTE: This entity has been renamed from IfcAirFilter in IFC R2x.

HISTORY: New entity in IFC Release 2x2.

EXPRESS specification:

ENTITY IfcFilterType

SUBTYPE OF (

IfcFlowTreatmentDeviceType);

PredefinedType

IfcFilterTypeEnum;

WHERE

WR1

(PredefinedType <> IfcFilterTypeEnum.USERDEFINED) OR ((PredefinedType = IfcFilterTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcElementType.ElementType));

END_ENTITY;

Attribute definitions:

PredefinedType

The type of air filter.

Inheritance graph

ENTITY IfcFilterType;

ENTITY IfcRoot;

GlobalId

IfcGloballyUniqueId;

OwnerHistory

IfcOwnerHistory;

Name

OPTIONAL IfcLabel;

Description

OPTIONAL IfcText;

ENTITY IfcObjectDefinition;

INVERSE

HasAssignments

SET OF IfcRelAssigns FOR RelatedObjects;

IsDecomposedBy

SET OF IfcRelDecomposes FOR RelatingObject;

Decomposes

SET [0:1] OF IfcRelDecomposes FOR RelatedObjects;

HasAssociations

SET OF IfcRelAssociates FOR RelatedObjects;

ENTITY IfcTypeObject;

ApplicableOccurrence

OPTIONAL IfcLabel;

HasPropertySets

OPTIONAL SET [1:?] OF IfcPropertySetDefinition;

INVERSE

ObjectTypeOf

SET [0:1] OF IfcRelDefinesByType FOR RelatingType;

ENTITY IfcTypeProduct;

RepresentationMaps

OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap;

Tag

OPTIONAL IfcLabel;

ENTITY IfcElementType;

ElementType

OPTIONAL IfcLabel;

ENTITY IfcDistributionElementType;

ENTITY IfcDistributionFlowElementType;

ENTITY IfcFlowTreatmentDeviceType;

ENTITY IfcFilterType;

PredefinedType

IfcFilterTypeEnum;

END_ENTITY;