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20252453-T-424 项目

4.2.8.3 参数化剖面定义（Parameterized 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 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement2D.htm'>IfcAxis2Placement2D</a> 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-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement2D.htm'>IfcAxis2Placement2D</a>:IfcAxis2Placement2D0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPoint.htm'>IfcCartesianPoint</a> IfcCartesianPoint      LayerAssignment [0:1]      StyledByItem [0:1] 1. Coordinates [1:3] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement2D.htm'>IfcAxis2Placement2D</a>:Location1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCartesianPoint.htm'>IfcCartesianPoint</a>:IfcCartesianPoint0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDirection.htm'>IfcDirection</a> IfcDirection      LayerAssignment [0:1]      StyledByItem [0:1] 1. DirectionRatios [2:3] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement2D.htm'>IfcAxis2Placement2D</a>:RefDirection1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDirection.htm'>IfcDirection</a>:IfcDirection0
图 4.2.8.3.A