 | Fenster - Typ |
 | Window Type |
 | Type de fenêtre |
| Item | SPF | XML | Change | Description | 4.0.0.0 |
|---|---|---|---|---|
| IfcWindowType | ADDED | 4.0.1.0 | ||
| IfcWindowType | ||||
| ParameterTakesPrecedence | MODIFIED | Type changed from BOOLEAN to IfcBoolean. |
The element type IfcWindowType defines commonly shared information for occurrences of windows. The set of shared information may include:
A window type defines the particular parameter of the lining and one (or several) panels through the IfcWindowLiningProperties and the IfcWindowPanelProperties as predefined property sets applicable to windows only.
It is used to define a window specification, or window style (the specific product information that is common to all occurrences of that window type). Window types may be exchanged without being already assigned to occurrences.
Occurrences of the IfcWindowType within building models are represented by instances of IfcWindow or IfcWindowStandardCase.
HISTORY New entity in IFC4. The entity IfcWindowType replaces the previous definition IfcWindowStyle (which is deprecated in IFC4).
Geometry Use Definitions:
The IfcWindowType may define the common shape of window occurrences. The common shape can be defined by
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 IfcWindow and IfcWindowStandardCase
| # | Attribute | Type | Cardinality | Description | R |
|---|---|---|---|---|---|
| 10 | PredefinedType | IfcWindowTypeEnum | Identifies the predefined types of a window element from which the type required may be set. | X | |
| 11 | PartitioningType | IfcWindowTypePartitioningEnum | Type defining the general layout of the window type in terms of the partitioning of panels. | X | |
| 12 | ParameterTakesPrecedence | - | This attribute is out of scope for this model view definition and shall not be set. | ||
| 13 | UserDefinedPartitioningType | IfcLabel | ? | Designator for the user defined partitioning type, shall only be provided, if the value of PartitioningType is set to USERDEFINED. | X |
| Rule | Description |
|---|---|
| CorrectPredefinedType | The inherited attribute ElementType shall be provided, if the PredefinedType is set to USERDEFINED. |
| # | Attribute | Type | Cardinality | Description | R |
|---|---|---|---|---|---|
| IfcRoot | |||||
| 1 | GlobalId | IfcGloballyUniqueId | Assignment of a globally unique identifier within the entire software world. | X | |
| 2 | OwnerHistory | IfcOwnerHistory | ? |
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. IFC4 CHANGE The attribute has been changed to be OPTIONAL. | X |
| 3 | Name | IfcLabel | ? | 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 | ? | 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).
IFC4 CHANGE The inverse attribute datatype has been added and separated from Decomposes defined at IfcObjectDefinition. | ||
| 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).
IFC4 CHANGE The inverse attribute datatype has been added and separated from IsDecomposedBy defined at IfcObjectDefinition. | 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.
IFC4 CHANGE The inverse attribute datatype has been added. | ||
| 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).
IFC4 CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates. | 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).
IFC4 CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates. | 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 | ? |
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:
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 IFC2x3 CHANGE The attribute aggregate type has been changed from LIST to SET. | X |
| Types | IfcRelDefinesByType @RelatingType | S[0:1] | Reference to the relationship IfcRelDefinedByType and thus to those occurrence objects, which are defined by this type. | ||
| 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 | ? | 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 |
| IfcElementType | |||||
| 9 | ElementType | IfcLabel | ? | 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 | |||||
| IfcWindowType | |||||
| 10 | PredefinedType | IfcWindowTypeEnum | Identifies the predefined types of a window element from which the type required may be set. | X | |
| 11 | PartitioningType | IfcWindowTypePartitioningEnum | Type defining the general layout of the window type in terms of the partitioning of panels. | X | |
| 12 | ParameterTakesPrecedence | - | This attribute is out of scope for this model view definition and shall not be set. | ||
| 13 | UserDefinedPartitioningType | IfcLabel | ? | Designator for the user defined partitioning type, shall only be provided, if the value of PartitioningType is set to USERDEFINED. | X |
| # | Concept | Template | Model View |
|---|---|---|---|
| IfcRoot | |||
| Identity | Software Identity | Reference View | |
| Revision Control | Revision Control | Reference View | |
| IfcObjectDefinition | |||
| Classification | Classification | Reference View | |
<xs:element name="IfcWindowType" type="ifc:IfcWindowType" substitutionGroup="ifc:IfcBuildingElementType" nillable="true"/>
<xs:complexType name="IfcWindowType">
<xs:complexContent>
<xs:extension base="ifc:IfcBuildingElementType">
<xs:attribute name="PredefinedType" type="ifc:IfcWindowTypeEnum" use="optional"/>
<xs:attribute name="PartitioningType" type="ifc:IfcWindowTypePartitioningEnum" use="optional"/>
<xs:attribute name="UserDefinedPartitioningType" type="ifc:IfcLabel" use="optional"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>
ENTITY IfcWindowType
SUBTYPE OF (IfcBuildingElementType);
PredefinedType : IfcWindowTypeEnum;
PartitioningType : IfcWindowTypePartitioningEnum;
ParameterTakesPrecedence : OPTIONAL IfcStrippedOptional;
UserDefinedPartitioningType : OPTIONAL IfcLabel;
WHERE
CorrectPredefinedType : (PredefinedType <> IfcWindowTypeEnum.USERDEFINED) OR
((PredefinedType = IfcWindowTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcElementType.ElementType));
END_ENTITY;
EXPRESS-G diagram
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