ifc4x3 IfcActuatorType
ifc4x3 IfcActuatorType
1语义定义
分配控制元件类型IfcActuatorType定义了致动器出现的共同共享信息。共享信息集可以包括:
- 具有共享属性集的公共财产
- 共同表示法
- 普通材料
- 元素的共同组成
- 公用端口
它用于定义致动器类型规范,指示该产品类型的所有事件所共有的特定产品信息。IfcActuatorType可以使用IfcRelDeclares在IfcProject或IfcProjectLibrary中声明,并且可以在出现或不出现该类型的情况下进行交换。IfcActuatorType的出现由IfcActor的实例表示。有关支持的属性集、材质、组成和端口,请参阅IfcActuator上的文档。
IFC2x2中的新实体
2实体继承
3实体属性
# | Attribute | Type | Description |
---|---|---|---|
IfcRoot (4) | |||
1 | GlobalId | IfcGloballyUniqueId |
Assignment of a globally unique identifier within the entire software world. |
2 | OwnerHistory | OPTIONAL 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. |
3 | Name | OPTIONAL 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. |
4 | Description | OPTIONAL IfcText |
Optional description, provided for exchanging informative comments. |
IfcObjectDefinition (7) | |||
HasAssignments | SET [0:?] OF IfcRelAssigns FOR RelatedObjects |
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. |
|
Nests | SET [0:1] OF IfcRelNests FOR RelatedObjects |
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 | SET [0:?] OF IfcRelNests FOR RelatingObject |
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. |
|
HasContext | SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions |
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 | SET [0:?] OF IfcRelAggregates FOR RelatingObject |
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. |
|
Decomposes | SET [0:1] OF IfcRelAggregates FOR RelatedObjects |
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. |
|
HasAssociations | SET [0:?] OF IfcRelAssociates FOR RelatedObjects |
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. |
|
IfcTypeObject (3) | |||
5 | ApplicableOccurrence | OPTIONAL 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: * 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 Referring to a furniture as applicable occurrence entity would be expressed as 'IfcFurnishingElement', referring to a brace as applicable entity would be expressed as 'IfcMember/BRACE'. |
6 | HasPropertySets | OPTIONAL SET [1:?] OF IfcPropertySetDefinition |
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. IFC2X3-CHANGE The attribute aggregate type has been changed from LIST to SET. |
Types | SET [0:1] OF IfcRelDefinesByType FOR RelatingType |
Reference to the relationship IfcRelDefinedByType and thus to those occurrence objects, which are defined by this type. |
|
IfcTypeProduct (3) | |||
7 | RepresentationMaps | OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap |
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. |
8 | Tag | OPTIONAL 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. |
ReferencedBy | SET [0:?] OF IfcRelAssignsToProduct FOR RelatingProduct |
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. IFC4-CHANGE New inverse relationship. |
|
IfcElementType (1) | |||
9 | ElementType | OPTIONAL 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. |
Click to show 18 hidden inherited attributes Click to hide 18 inherited attributes | |||
IfcActuatorType (1) | |||
10 | PredefinedType | IfcActuatorTypeEnum |
Identifies the predefined types of actuator from which the type required may be set. |
ENTITY IfcActuatorType SUBTYPE OF (IfcDistributionControlElementType); PredefinedType : IfcActuatorTypeEnum; WHERE CorrectPredefinedType : (PredefinedType <> IfcActuatorTypeEnum.USERDEFINED) OR ((PredefinedType = IfcActuatorTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcElementType.ElementType)); END_ENTITY;
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