IfcTypeProduct

Definition from IAI: The product type (IfcTypeProduct) defines a list of property set definitions of a product and an optional set of product representations. It is used to define a product specification (i.e. the specific product information, that is common to all occurences of that product type).

NOTE: The product representations are defined as representation maps, which gets assigned by a product instance through the representation item 'IfcMappedItem'.

A product type is used to define the common properties of a certain type or style of an object that may be applied to instances of those products to assign a specific style to them. Product types may be exchanges without being already assigned to products.

HISTORY: New entity in IFC Release 2x.

EXPRESS specification:

ENTITY IfcTypeProduct

SUBTYPE OF (

IfcTypeObject);

RepresentationMaps

OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap;

Tag

OPTIONAL IfcLabel;

WHERE

WR41

NOT(EXISTS(SELF\IfcTypeObject.ObjectTypeOf[1])) OR (SIZEOF(QUERY(temp <* SELF\IfcTypeObject.ObjectTypeOf[1].RelatedObjects | NOT('IFCKERNEL.IFCPRODUCT' IN TYPEOF(temp))) ) = 0);

END_ENTITY;

Attribute definitions:

RepresentationMaps	:	List of unique representation maps. Each representation map describes a block definition of the shape of the product style. By providing more than one representation map, a multi-view block definition can be given.
Tag	:	The tag (or label) identifier at the particular type of a product, e.g. the article number (like the EAN). It is the identifier at the specific level.

Formal Propositions:

WR41

The product style, if assigned to an object, shall only be assigned to object of type IfcProduct or IfcProxy.

Inheritance graph

ENTITY IfcTypeProduct;

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;

END_ENTITY;