IFC 4.3.2.20260714 (IFC4X3_ADD2) under development

4.1.5.11.1 Space Boundaries 1st Level（空间边界一级）

空间可由墙、楼板、门窗等建筑构件定义边界。此类信息可用于确定通过周围材料的热传递。

图 4.1.5.11.1.A 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，表 4.1.5.11.1.B 列出了用户可采用的推荐通用使用模式。

<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSpace.htm'>IfcSpace</a> IfcSpace 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. LongName [0:1]      ContainsElements [0:?]      ServicedBySystems [0:?]      ReferencesElements [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?] 9. CompositionType [0:1] 10. PredefinedType [0:1] 11. ElevationWithFlooring [0:1]      HasCoverings [0:?]      BoundedBy [0:?] IfcRelSpaceBoundary1stLevel_0 IfcRelSpaceBoundary1stLevel 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingSpace [1:1] 6. RelatedBuildingElement [1:1] 7. ConnectionGeometry [0:1] 8. PhysicalOrVirtualBoundary [1:1] 9. InternalOrExternalBoundary [1:1] 10. ParentBoundary [0:1]      InnerBoundaries [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSpace.htm'>IfcSpace</a>:BoundedBy1->IfcRelSpaceBoundary1stLevel_0:RelatingSpace0 <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:?] IfcRelSpaceBoundary1stLevel_0:RelatedBuildingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcElement.htm'>IfcElement</a>:IfcElement0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConnectionSurfaceGeometry.htm'>IfcConnectionSurfaceGeometry</a> IfcConnectionSurfaceGeometry 1. SurfaceOnRelatingElement [1:1] 2. SurfaceOnRelatedElement [0:1] IfcRelSpaceBoundary1stLevel_0:ConnectionGeometry1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConnectionSurfaceGeometry.htm'>IfcConnectionSurfaceGeometry</a>:IfcConnectionSurfaceGeometry0 IfcRelSpaceBoundary1stLevel_1 IfcRelSpaceBoundary1stLevel 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingSpace [1:1] 6. RelatedBuildingElement [1:1] 7. ConnectionGeometry [0:1] 8. PhysicalOrVirtualBoundary [1:1] 9. InternalOrExternalBoundary [1:1] 10. ParentBoundary [0:1]      InnerBoundaries [0:?] IfcRelSpaceBoundary1stLevel_0:ParentBoundary1->IfcRelSpaceBoundary1stLevel_1:IfcRelSpaceBoundary1stLevel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPhysicalOrVirtualEnum.htm'>IfcPhysicalOrVirtualEnum</a> IfcPhysicalOrVirtualEnum IfcRelSpaceBoundary1stLevel_0:PhysicalOrVirtualBoundary1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPhysicalOrVirtualEnum.htm'>IfcPhysicalOrVirtualEnum</a>:IfcPhysicalOrVirtualEnum0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcInternalOrExternalEnum.htm'>IfcInternalOrExternalEnum</a> IfcInternalOrExternalEnum IfcRelSpaceBoundary1stLevel_0:InternalOrExternalBoundary1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcInternalOrExternalEnum.htm'>IfcInternalOrExternalEnum</a>:IfcInternalOrExternalEnum0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSurfaceOfLinearExtrusion.htm'>IfcSurfaceOfLinearExtrusion</a> IfcSurfaceOfLinearExtrusion      LayerAssignment [0:1]      StyledByItem [0:1] 1. SweptCurve [1:1] 2. Position [0:1] 3. ExtrudedDirection [1:1] 4. Depth [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConnectionSurfaceGeometry.htm'>IfcConnectionSurfaceGeometry</a>:SurfaceOnRelatingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSurfaceOfLinearExtrusion.htm'>IfcSurfaceOfLinearExtrusion</a>:IfcSurfaceOfLinearExtrusion0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedPlane.htm'>IfcCurveBoundedPlane</a> IfcCurveBoundedPlane      LayerAssignment [0:1]      StyledByItem [0:1] 1. BasisSurface [1:1] 2. OuterBoundary [1:1] 3. InnerBoundaries [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConnectionSurfaceGeometry.htm'>IfcConnectionSurfaceGeometry</a>:SurfaceOnRelatingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedPlane.htm'>IfcCurveBoundedPlane</a>:IfcCurveBoundedPlane0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedSurface.htm'>IfcCurveBoundedSurface</a> IfcCurveBoundedSurface      LayerAssignment [0:1]      StyledByItem [0:1] 1. BasisSurface [1:1] 2. Boundaries [1:?] 3. ImplicitOuter [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConnectionSurfaceGeometry.htm'>IfcConnectionSurfaceGeometry</a>:SurfaceOnRelatingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedSurface.htm'>IfcCurveBoundedSurface</a>:IfcCurveBoundedSurface0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFaceBasedSurfaceModel.htm'>IfcFaceBasedSurfaceModel</a> IfcFaceBasedSurfaceModel      LayerAssignment [0:1]      StyledByItem [0:1] 1. FbsmFaces [1:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcConnectionSurfaceGeometry.htm'>IfcConnectionSurfaceGeometry</a>:SurfaceOnRelatingElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFaceBasedSurfaceModel.htm'>IfcFaceBasedSurfaceModel</a>:IfcFaceBasedSurfaceModel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcArbitraryOpenProfileDef.htm'>IfcArbitraryOpenProfileDef</a> IfcArbitraryOpenProfileDef 1. ProfileType [1:1] 2. ProfileName [0:1]      HasExternalReference [0:?]      HasProperties [0:?] 3. Curve [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSurfaceOfLinearExtrusion.htm'>IfcSurfaceOfLinearExtrusion</a>:SweptCurve1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcArbitraryOpenProfileDef.htm'>IfcArbitraryOpenProfileDef</a>:IfcArbitraryOpenProfileDef0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPlane.htm'>IfcPlane</a> IfcPlane      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedPlane.htm'>IfcCurveBoundedPlane</a>:BasisSurface1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPlane.htm'>IfcPlane</a>:IfcPlane0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCylindricalSurface.htm'>IfcCylindricalSurface</a> IfcCylindricalSurface      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. Radius [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedSurface.htm'>IfcCurveBoundedSurface</a>:BasisSurface1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCylindricalSurface.htm'>IfcCylindricalSurface</a>:IfcCylindricalSurface0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcOuterBoundaryCurve.htm'>IfcOuterBoundaryCurve</a> IfcOuterBoundaryCurve      LayerAssignment [0:1]      StyledByItem [0:1] 1. Segments [1:?] 2. SelfIntersect [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedSurface.htm'>IfcCurveBoundedSurface</a>:Boundaries1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcOuterBoundaryCurve.htm'>IfcOuterBoundaryCurve</a>:IfcOuterBoundaryCurve0 IfcBoolean_1 IfcBoolean <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCurveBoundedSurface.htm'>IfcCurveBoundedSurface</a>:ImplicitOuter1->IfcBoolean_1:IfcBoolean0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcOpenShell.htm'>IfcOpenShell</a> IfcOpenShell      LayerAssignment [0:1]      StyledByItem [0:1] 1. CfsFaces [1:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFaceBasedSurfaceModel.htm'>IfcFaceBasedSurfaceModel</a>:FbsmFaces1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcOpenShell.htm'>IfcOpenShell</a>:IfcOpenShell0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a> IfcIndexedPolyCurve      LayerAssignment [0:1]      StyledByItem [0:1] 1. Points [1:1] 2. Segments [1:?] 3. SelfIntersect [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcArbitraryOpenProfileDef.htm'>IfcArbitraryOpenProfileDef</a>:Curve1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a>:IfcIndexedPolyCurve0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPointList2D.htm'>IfcCartesianPointList2D</a> IfcCartesianPointList2D      LayerAssignment [0:1]      StyledByItem [0:1] 1. CoordList [1:?] 2. TagList [1:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a>:Points1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPointList2D.htm'>IfcCartesianPointList2D</a>:IfcCartesianPointList2D0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcArcIndex.htm'>IfcArcIndex</a> IfcArcIndex <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a>:Segments1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcArcIndex.htm'>IfcArcIndex</a>:IfcArcIndex0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLineIndex.htm'>IfcLineIndex</a> IfcLineIndex <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a>:Segments1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLineIndex.htm'>IfcLineIndex</a>:IfcLineIndex0 IfcBoolean_0 IfcBoolean <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a>:SelfIntersect1->IfcBoolean_0:IfcBoolean0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLengthMeasure.htm'>IfcLengthMeasure</a> IfcLengthMeasure <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPointList2D.htm'>IfcCartesianPointList2D</a>:CoordList1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLengthMeasure.htm'>IfcLengthMeasure</a>:IfcLengthMeasure0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcVoidingFeature.htm'>IfcVoidingFeature</a> IfcVoidingFeature 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:?]      VoidsElements [1:1] 9. PredefinedType [0:1] IfcBoolean_0:RelatedOpeningElement1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcVoidingFeature.htm'>IfcVoidingFeature</a>:IfcVoidingFeature0 IfcAxis2Placement3D_0 IfcAxis2Placement3D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. Axis [0:1] 3. RefDirection [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPlane.htm'>IfcPlane</a>:Position1->IfcAxis2Placement3D_0:IfcAxis2Placement3D0 IfcAxis2Placement3D_1 IfcAxis2Placement3D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. Axis [0:1] 3. RefDirection [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCylindricalSurface.htm'>IfcCylindricalSurface</a>:Position1->IfcAxis2Placement3D_1:IfcAxis2Placement3D0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCompositeCurveSegment.htm'>IfcCompositeCurveSegment</a> IfcCompositeCurveSegment      LayerAssignment [0:1]      StyledByItem [0:1] 1. Transition [1:1]      UsingCurves [1:?] 2. SameSense [1:1] 3. ParentCurve [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcOuterBoundaryCurve.htm'>IfcOuterBoundaryCurve</a>:Segments1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCompositeCurveSegment.htm'>IfcCompositeCurveSegment</a>:IfcCompositeCurveSegment0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFace.htm'>IfcFace</a> IfcFace      LayerAssignment [0:1]      StyledByItem [0:1] 1. Bounds [1:?]      HasTextureMaps [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcOpenShell.htm'>IfcOpenShell</a>:CfsFaces1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFace.htm'>IfcFace</a>:IfcFace0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFaceOuterBound.htm'>IfcFaceOuterBound</a> IfcFaceOuterBound      LayerAssignment [0:1]      StyledByItem [0:1] 1. Bound [1:1] 2. Orientation [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFace.htm'>IfcFace</a>:Bounds1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcFaceOuterBound.htm'>IfcFaceOuterBound</a>:IfcFaceOuterBound0
图 4.1.5.11.1.A

通用用法

ApplicableEntity
IfcSpace
表 4.1.5.11.1.B

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