IfcBuildingElementProxyType

Definition from IAI: The IfcBuildingElementProxyType defines a list of commonly shared property set definitions of a building element proxy 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 gets assigned by an element occurrence instance through the IfcShapeRepresentation.Item[1] being an IfcMappedItem.

A building element proxy type is used to define the common properties of a certain type of a building element proxy that may be applied to many instances of that type to assign a specific style. Building element proxy types may be exchanged without being already assigned to occurrences.

NOTE Although an building element proxy does not have a predefined ontological meaning the provision of a type may be helpful in sharing information among multiple occurrences. Applications that provide type information for element types not yet included in the current IFC specification can use the IfcBuildingElementProxyType to exchange such types.

The occurrences of the IfcBuildingElementProxyType are represented by instances of IfcBuildingElementProxy.

HISTORY New entity in Release IFC2x Edition 3.

EXPRESS specification:

ENTITY IfcBuildingElementProxyType

SUBTYPE OF (

IfcBuildingElementType);

PredefinedType

IfcBuildingElementProxyTypeEnum;

END_ENTITY;

Attribute definitions:

PredefinedType

Predefined types to define the particular type of an building element proxy. There may be property set definitions available for each predefined or user defined type.

Inheritance graph

ENTITY IfcBuildingElementProxyType;

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 IfcBuildingElementType;

ENTITY IfcBuildingElementProxyType;

PredefinedType

IfcBuildingElementProxyTypeEnum;

END_ENTITY;