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20252453-T-424 项目

4.2.8.3.2 参数化剖面定义 标准化剖面定义（Standardized Profile Definition）

下图展示了应用此概念时使用的通用类和关系。

<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcParameterizedProfileDef.htm'>IfcParameterizedProfileDef</a> IfcParameterizedProfileDef 1. ProfileType [1:1] 2. ProfileName [0:1]      HasExternalReference [0:?]      HasProperties [0:?] 3. Position [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProfileTypeEnum.htm'>IfcProfileTypeEnum</a> IfcProfileTypeEnum <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcParameterizedProfileDef.htm'>IfcParameterizedProfileDef</a>:ProfileType1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProfileTypeEnum.htm'>IfcProfileTypeEnum</a>:IfcProfileTypeEnum0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLabel.htm'>IfcLabel</a> IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcParameterizedProfileDef.htm'>IfcParameterizedProfileDef</a>:ProfileName1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcLabel.htm'>IfcLabel</a>:IfcLabel0 IfcAxis2Placement2D_0 IfcAxis2Placement2D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. RefDirection [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcParameterizedProfileDef.htm'>IfcParameterizedProfileDef</a>:Position1->IfcAxis2Placement2D_0:IfcAxis2Placement2D0 IfcAxis2Placement2D_1 IfcAxis2Placement2D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. RefDirection [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcParameterizedProfileDef.htm'>IfcParameterizedProfileDef</a>:Position1->IfcAxis2Placement2D_1:IfcAxis2Placement2D0 IfcCartesianPoint_0 IfcCartesianPoint      LayerAssignment [0:1]      StyledByItem [0:1] 1. Coordinates [1:3] IfcAxis2Placement2D_0:Location1->IfcCartesianPoint_0:IfcCartesianPoint0 IfcCartesianPoint_1 IfcCartesianPoint      LayerAssignment [0:1]      StyledByItem [0:1] 1. Coordinates [1:3] IfcAxis2Placement2D_0:Location1->IfcCartesianPoint_1:IfcCartesianPoint0 IfcDirection_0 IfcDirection      LayerAssignment [0:1]      StyledByItem [0:1] 1. DirectionRatios [2:3] IfcAxis2Placement2D_0:RefDirection1->IfcDirection_0:IfcDirection0 IfcDirection_1 IfcDirection      LayerAssignment [0:1]      StyledByItem [0:1] 1. DirectionRatios [2:3] IfcAxis2Placement2D_0:RefDirection1->IfcDirection_1:IfcDirection0
Figure 4.2.8.3.2.A