IFC 4.3.2.20251031 (IFC4X3_ADD2) under development

4.1.3.1.2 Grid Attributes

注意:此属性模板与其他类似模板一样,源自与 mvdXML 相关联的旧有要求,以及 MVD 定义交换信息要求的早期时代。此类模板不再为规范增加价值,也不会传达超出模式中已定义信息的内容。此外,一些模板引用了已弃用的实体,可能导致不必要的混淆。 作为清理文档的更广泛工作的一部分,此模板和其他非必需模板将在下一个版本中删除。

网格可用于为建筑构件提供布局参考。

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/IfcGrid.htm'>IfcGrid</a> IfcGrid 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:?]      ContainedInStructure [0:1]      Positions [0:?] UAxes 8. UAxes [1:?] VAxes 9. VAxes [1:?] WAxes 10. WAxes [1:?] 11. PredefinedType [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGridTypeEnum.htm'>IfcGridTypeEnum</a> IfcGridTypeEnum <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGrid.htm'>IfcGrid</a>:PredefinedType1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGridTypeEnum.htm'>IfcGridTypeEnum</a>:IfcGridTypeEnum0 IfcGridAxis_0 IfcGridAxis 1. AxisTag [0:1] 2. AxisCurve [1:1] 3. SameSense [1:1]      PartOfW [0:1]      PartOfV [0:1]      PartOfU [0:1]      HasIntersections [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGrid.htm'>IfcGrid</a>:UAxes1->IfcGridAxis_0:IfcGridAxis0 IfcGridAxis_1 IfcGridAxis 1. AxisTag [0:1] 2. AxisCurve [1:1] 3. SameSense [1:1]      PartOfW [0:1]      PartOfV [0:1]      PartOfU [0:1]      HasIntersections [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGrid.htm'>IfcGrid</a>:VAxes1->IfcGridAxis_1:IfcGridAxis0 IfcGridAxis_2 IfcGridAxis 1. AxisTag [0:1] 2. AxisCurve [1:1] 3. SameSense [1:1]      PartOfW [0:1]      PartOfV [0:1]      PartOfU [0:1]      HasIntersections [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGrid.htm'>IfcGrid</a>:WAxes1->IfcGridAxis_2:IfcGridAxis0 IfcLabel_0 IfcLabel IfcGridAxis_0:AxisTag1->IfcLabel_0:IfcLabel0 IfcIndexedPolyCurve_0 IfcIndexedPolyCurve      LayerAssignment [0:1]      StyledByItem [0:1] 1. Points [1:1] 2. Segments [1:?] 3. SelfIntersect [0:1] IfcGridAxis_0:AxisCurve1->IfcIndexedPolyCurve_0:IfcIndexedPolyCurve0 IfcCircle_0 IfcCircle      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. Radius [1:1] IfcGridAxis_0:AxisCurve1->IfcCircle_0:IfcCircle0 IfcBoolean_0 IfcBoolean IfcGridAxis_0:SameSense1->IfcBoolean_0:IfcBoolean0 IfcLabel_1 IfcLabel IfcGridAxis_1:AxisTag1->IfcLabel_1:IfcLabel0 IfcIndexedPolyCurve_1 IfcIndexedPolyCurve      LayerAssignment [0:1]      StyledByItem [0:1] 1. Points [1:1] 2. Segments [1:?] 3. SelfIntersect [0:1] IfcGridAxis_1:AxisCurve1->IfcIndexedPolyCurve_1:IfcIndexedPolyCurve0 IfcCircle_1 IfcCircle      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. Radius [1:1] IfcGridAxis_1:AxisCurve1->IfcCircle_1:IfcCircle0 IfcBoolean_1 IfcBoolean IfcGridAxis_1:SameSense1->IfcBoolean_1:IfcBoolean0
Figure 4.1.3.1.2.A

General Usage

ApplicableEntity
IfcGrid
表 4.1.3.1.2.B