IfcDoorType

Semantic definitions at the entity

Entity definition

The element type IfcDoorType defines commonly shared information for occurrences of doors. The set of shared information may include:

common properties within shared property sets
common material information
common operation type definitions
common shape representations

A door type defines the particular parameter of the lining and one (or several) panels through the IfcDoorLiningProperties and the IfcDoorPanelProperties as predefined property sets applicable to doors only.

It is used to define a door specification, or door style (i.e. the specific product information that is common to all occurrences of that door type). Door types may be exchanged without being already assigned to occurrences.

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.

Occurrences of the IfcDoorType within building models are represented by instances of IfcDoor or IfcDoorStandardCase.

HISTORY New entity in IFC4. The entity IfcDoorType replaces the previous definition IfcDoorStyle (which is deprecated in IFC4).

Operation type use definition

The IfcDoorTypeOperationEnum defines the general layout of the door type and its symbolic presentation. Depending on the enumerator, the appropriate instances of IfcDoorLiningProperties and IfcDoorPanelProperties are attached in the list of HasPropertySets. The IfcDoorTypeOperationEnum mainly determines the hinge side (left hung, or right hung), the operation (swinging, sliding, folding, etc.) and the number of panels.

NOTE There are different definitions in various countries on what a left opening or left hung or left swing door is (same for right). Therefore the IFC definition may derivate from the local standard and may need to be mapped appropriately.

See geometry use definitions at IfcDoorTypeOperationEnum for the correct usage of opening symbols for different operation types.

Material Use Definition

The material of the IfcDoorType is defined by the IfcMaterialConstituentSet or as fall back by IfcMaterial and attached by the IfcRelAssociatesMaterial.RelatingMaterial. It is accessible by the inverse HasAssociations relationship.

The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:

'Lining' - to indicate that the material constituent applies to to the door lining
'Framing' - to indicate that the material constituent applies to to the door framing, if not provided, the 'Lining' material information applied to frams as well
'Glazing' - to indicate that the material constituent applies to to the glazing as well

If the fall back single IfcMaterial is referenced, it applies to the lining and framing of the door.

Geometry Use Definitions:

The IfcDoorType may define the common shape of door occurrences. The common shape can be defined by

applying shape parameters defined within the associated IfcDoorLiningProperties and IfcDoorPanelProperties applied to the 'Profile' geometric representation. It is only applicable if the IfcDoorType has only occurrences of type IfcDoorStandardCase (See geometric use definition of IfcDoorStandardCase for further information).
applying the RepresentationMaps attribute to refer to a list of IfcRepresentationMap's, that allow for multiple geometric representations (e.g. with IfcShapeRepresentation's having an RepresentationIdentifier 'Box', 'Profile', 'FootPrint', or 'Body')
NOTE The product shape representations are defined as RepresentationMaps (attribute of the supertype IfcTypeProduct), which get assigned by an element occurrence instance through the IfcShapeRepresentation.Item[n] being an IfcMappedItem. See IfcTypeProduct for further information.

NOTE The values of attributes RepresentationIdentifier and RepresentationType of IfcShapeRepresentation are restricted in the same way as those for IfcDoor and IfcDoorStandardCase

Attribute definitions

#	Attribute	Type	Cardinality	Description	C
10	PredefinedType	IfcDoorTypeEnum	[1:1]	Identifies the predefined types of a door element from which the type required may be set.	X
11	OperationType	IfcDoorTypeOperationEnum	[1:1]	Type defining the general layout and operation of the door type in terms of the partitioning of panels and panel operations.	X
12	ParameterTakesPrecedence	IfcBoolean	[0:1]	The Boolean value reflects, whether the parameter given in the attached lining and panel properties exactly define the geometry (TRUE), or whether the attached style shape take precedence (FALSE). In the last case the parameter have only informative value. If not provided, no such information can be infered.	X
13	UserDefinedOperationType	IfcLabel	[0:1]	Designator for the user defined operation type, shall only be provided, if the value of OperationType is set to USERDEFINED.	X

Formal Propositions

Rule	Description
CorrectPredefinedType	The inherited attribute ElementType shall be provided, if the PredefinedType is set to USERDEFINED.

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcRoot
1	GlobalId	IfcGloballyUniqueId	[1:1]	Assignment of a globally unique identifier within the entire software world.	X
2	OwnerHistory	IfcOwnerHistory	[0:1]	Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object, NOTE only the last modification in stored - either as addition, deletion or modification.	X
3	Name	IfcLabel	[0:1]	Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.	X
4	Description	IfcText	[0:1]	Optional description, provided for exchanging informative comments.	X
IfcObjectDefinition
	HasAssignments	IfcRelAssigns @RelatedObjects	S[0:?]	Reference to the relationship objects, that assign (by an association relationship) other subtypes of IfcObject to this object instance. Examples are the association to products, processes, controls, resources or groups.	X
	Nests	IfcRelNests @RelatedObjects	S[0:1]	References to the decomposition relationship being a nesting. It determines that this object definition is a part within an ordered whole/part decomposition relationship. An object occurrence or type can only be part of a single decomposition (to allow hierarchical strutures only).	X
	IsNestedBy	IfcRelNests @RelatingObject	S[0:?]	References to the decomposition relationship being a nesting. It determines that this object definition is the whole within an ordered whole/part decomposition relationship. An object or object type can be nested by several other objects (occurrences or types).	X
	HasContext	IfcRelDeclares @RelatedDefinitions	S[0:1]	References to the context providing context information such as project unit or representation context. It should only be asserted for the uppermost non-spatial object.	X
	IsDecomposedBy	IfcRelAggregates @RelatingObject	S[0:?]	References to the decomposition relationship being an aggregation. It determines that this object definition is whole within an unordered whole/part decomposition relationship. An object definitions can be aggregated by several other objects (occurrences or parts).	X
	Decomposes	IfcRelAggregates @RelatedObjects	S[0:1]	References to the decomposition relationship being an aggregation. It determines that this object definition is a part within an unordered whole/part decomposition relationship. An object definitions can only be part of a single decomposition (to allow hierarchical strutures only).	X
	HasAssociations	IfcRelAssociates @RelatedObjects	S[0:?]	Reference to the relationship objects, that associates external references or other resource definitions to the object.. Examples are the association to library, documentation or classification.	X
IfcTypeObject
5	ApplicableOccurrence	IfcIdentifier	[0:1]	The attribute optionally defines the data type of the occurrence object, to which the assigned type object can relate. If not present, no instruction is given to which occurrence object the type object is applicable. The following conventions are used: The IFC entity name of the applicable occurrence using the IFC naming convention, CamelCase with IFC prefix It can be optionally followed by the predefined type after the separator "/" (forward slash), using uppercase If one type object is applicable to many occurrence objects, then those occurrence object names should be separate by comma "," forming a comma separated string. EXAMPLE Refering to a furniture as applicable occurrence entity would be expressed as 'IfcFurnishingElement', refering to a brace as applicable entity would be expressed as 'IfcMember/BRACE', refering to a wall and wall standard case would be expressed as 'IfcWall, IfcWallStandardCase'.	X
6	HasPropertySets	IfcPropertySetDefinition	S[1:?]	Set ~~list~~ of unique property sets, that are associated with the object type and are common to all object occurrences referring to this object type.	X
	Types	IfcRelDefinesByType @RelatingType	S[0:1]	Reference to the relationship IfcRelDefinedByType and thus to those occurrence objects, which are defined by this type.	X
IfcTypeProduct
7	RepresentationMaps	IfcRepresentationMap	~L[1:?]	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.	X
8	Tag	IfcLabel	[0:1]	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.	X
	ReferencedBy	IfcRelAssignsToProduct @RelatingProduct	S[0:?]	Reference to the IfcRelAssignsToProduct relationship, by which other products, processes, controls, resources or actors (as subtypes of IfcObjectDefinition) can be related to this product type.	X
IfcElementType
9	ElementType	IfcLabel	[0:1]	The type denotes a particular type that indicates the object further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute 'PredefinedType' is set to USERDEFINED.	X
IfcBuildingElementType
IfcDoorType
10	PredefinedType	IfcDoorTypeEnum	[1:1]	Identifies the predefined types of a door element from which the type required may be set.	X
11	OperationType	IfcDoorTypeOperationEnum	[1:1]	Type defining the general layout and operation of the door type in terms of the partitioning of panels and panel operations.	X
12	ParameterTakesPrecedence	IfcBoolean	[0:1]	The Boolean value reflects, whether the parameter given in the attached lining and panel properties exactly define the geometry (TRUE), or whether the attached style shape take precedence (FALSE). In the last case the parameter have only informative value. If not provided, no such information can be infered.	X
13	UserDefinedOperationType	IfcLabel	[0:1]	Designator for the user defined operation type, shall only be provided, if the value of OperationType is set to USERDEFINED.	X

Definitions applying to Common Use Definitions

Instance diagram

Concept usage

Type Body Geometry

The Type Body Geometry concept applies to this entity.

Property Sets for Types

The Property Sets for Types concept applies to this entity.

Two subtypes of IfcPreDefinedPropertySet are applicable to IfcDoorType:

IfcDoorLiningProperties - a single instance to define the shape parameters of the door lining
IfcDoorPanelProperties - one or several instances to define the shape parameters of the door panel(s)

Concept inheritance

#	Concept	Model View
IfcRoot
	Software Identity	Common Use Definitions
	Revision Control	Common Use Definitions
IfcTypeProduct
	Product Type Shape	Common Use Definitions
IfcDoorType
	Type Body Geometry	Common Use Definitions
	Property Sets for Types	Common Use Definitions

Formal representations

XSD Specification

 <xs:element name="IfcDoorType" type="ifc:IfcDoorType" substitutionGroup="ifc:IfcBuildingElementType" nillable="true"/>

 <xs:complexType name="IfcDoorType">

  <xs:complexContent>

   <xs:extension base="ifc:IfcBuildingElementType">

    <xs:attribute name="PredefinedType" type="ifc:IfcDoorTypeEnum" use="optional"/>

    <xs:attribute name="OperationType" type="ifc:IfcDoorTypeOperationEnum" use="optional"/>

    <xs:attribute name="ParameterTakesPrecedence" type="ifc:IfcBoolean" use="optional"/>

    <xs:attribute name="UserDefinedOperationType" type="ifc:IfcLabel" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcDoorType

 SUBTYPE OF (IfcBuildingElementType);

  PredefinedType : IfcDoorTypeEnum;

  OperationType : IfcDoorTypeOperationEnum;

  ParameterTakesPrecedence : OPTIONAL IfcBoolean;

  UserDefinedOperationType : OPTIONAL IfcLabel;

 WHERE

  CorrectPredefinedType : (PredefinedType <> IfcDoorTypeEnum.USERDEFINED) OR
((PredefinedType = IfcDoorTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcElementType.ElementType));
END_ENTITY;

 EXPRESS-G diagram

Link to this page

Item	Change	Description
IFC2x3 to IFC4
IfcDoorType	ADDED
IFC4 Addendum 1
IfcDoorType
ParameterTakesPrecedence	MODIFIED	Type changed from BOOLEAN to IfcBoolean.

	Tür - Typ
	Door Type
	Type de porte