IfcBuildingElementType

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

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

The IfcBuildingElementType is an abstract type. Occurrences of subtypes of the IfcBuildingElementType are represented by instances of the appropriate subtypes of IfcBuildingElement.

> HISTORY New entity in Release IFC2x Edition 2.

EXPRESS specification:

ENTITY IfcBuildingElementType
ABSTRACT SUPERTYPE OF | (ONEOF(IfcCoveringType, IfcBeamType, IfcMemberType, IfcColumnType, IfcWallType, IfcSlabType, IfcStairFlightType, IfcRampFlightType, IfcCurtainWallType, IfcRailingType, IfcBuildingElementProxyType, IfcPlateType))
SUBTYPE OF ( | IfcElementType);
END_ENTITY;

Inheritance graph

ENTITY IfcBuildingElementType;
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;
END_ENTITY;