IFC 4.3.2.20251031 (IFC4X3_ADD2) under development

4.1.9.2 Project Declaration

该项目提供了使用声明关系包含的对象类型和属性模板的目录。

下图展示了应用此概念时使用的通用类和关系。 此外，概念可能对常见或标准化的行业实践和场景具有特殊意义。对于这些特定的使用场景，下表展示了用户可采用的推荐通用使用模式列表。

G <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a> IfcContext 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1] 6. LongName [0:1] 7. Phase [0:1] 8. RepresentationContexts [1:?] 9. UnitsInContext [0:1]      IsDefinedBy [0:?]      Declares [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelDeclares.htm'>IfcRelDeclares</a> IfcRelDeclares 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingContext [1:1] Type 6. RelatedDefinitions [1:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:Declares1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelDeclares.htm'>IfcRelDeclares</a>:RelatingContext0 IfcLabel_0 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:Phase1->IfcLabel_0:IfcLabel0 IfcLabel_1 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:ObjectType1->IfcLabel_1:IfcLabel0 IfcLabel_2 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:LongName1->IfcLabel_2:IfcLabel0
Figure 4.1.9.2.A

General Usage

ApplicableEntity
Type
IfcRelDeclares.RelatedDefinitions
IfcProject IfcActor
IfcProject IfcControl
IfcProject IfcGroup
IfcProject IfcProcess
IfcProject IfcProjectLibrary
IfcProject IfcPropertySetTemplate
IfcProject IfcResource
IfcProject IfcTypeObject
表 4.1.9.2.B

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