IFC 4.3.2.20251031 (IFC4X3_ADD2) under development

4.1.4.2 Element Projecting

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/IfcElement.htm'>IfcElement</a> IfcElement 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]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelProjectsElement.htm'>IfcRelProjectsElement</a> IfcRelProjectsElement 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingElement [1:1] 6. RelatedFeatureElement [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcElement.htm'>IfcElement</a>:HasProjections1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelProjectsElement.htm'>IfcRelProjectsElement</a>:RelatingElement0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProjectionElement.htm'>IfcProjectionElement</a> IfcProjectionElement 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]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?]      ProjectsElements [1:1] 9. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelProjectsElement.htm'>IfcRelProjectsElement</a>:RelatedFeatureElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProjectionElement.htm'>IfcProjectionElement</a>:IfcProjectionElement0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProjectionElementTypeEnum.htm'>IfcProjectionElementTypeEnum</a> IfcProjectionElementTypeEnum <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProjectionElement.htm'>IfcProjectionElement</a>:PredefinedType1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProjectionElementTypeEnum.htm'>IfcProjectionElementTypeEnum</a>:IfcProjectionElementTypeEnum0
Figure 4.1.4.2.A

General Usage

ApplicableEntity
IfcElement
表 4.1.4.2.B

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