IfcSpaceType

Definition from buildingSMART: The element type (IfcSpaceType) defines a list of commonly shared property set definitions of a space and an optional set of product representations. It is used to define an space specification (i.e. the specific space information, that is common to all occurrences of that space 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 space type is used to define the common properties of a certain type of space that may be applied to many instances of that type to assign a specific style. Space types may be exchanged without being already assigned to occurrences.

NOTE The space types are often used to represent space catalogues, less so for sharing a common representation map. Space types in a space catalogue share same space classification and a common set of space requirement properties.

The occurrences of IfcSpaceType are represented by instances of IfcSpace.

HISTORY New entity in Release IFC2x Edition 3.

EXPRESS specification:

ENTITY IfcSpaceType

SUBTYPE OF (

IfcSpatialStructureElementType);

PredefinedType

IfcSpaceTypeEnum;

END_ENTITY;

Attribute definitions:

PredefinedType

Predefined types to define the particular type of space. There may be property set definitions available for each predefined type.

Inheritance graph

ENTITY IfcSpaceType;

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 IfcSpatialStructureElementType;

ENTITY IfcSpaceType;

PredefinedType

IfcSpaceTypeEnum;

END_ENTITY;