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  • IfcGeometricProjectionEnum

    IfcGeometricProjectionEnum定义了可以在语义上区分的各种表示类型。形状表示的不同详细级别通常由表示类型控制。

    IFC2x2中增加的新枚举。

    Enumeration definition

    ConstantDescription
    GRAPH_VIEW Geometric display representation that shows an abstract, often 1D element representation, e.g. representing a wall by its axis line.
    SKETCH_VIEW Geometric display representation that shows an abstract, often 2D element representation, e.g. representing a wall by its two foot print edges, surpressing any inner layer representation.
    MODEL_VIEW Geometric display representation that shows a full 3D element representation, e.g. representing a wall by its volumetric body.
    PLAN_VIEW

    显示完整二维元素表示的几何显示表示法,详细程度通常取决于目标比例,例如,通过墙的两个脚印边缘和所有内层的边缘来表示墙。投影显示在俯视图中。

    REFLECTED_PLAN_VIEW 显示完整二维元素表示的几何显示表示法,详细程度通常取决于目标比例,例如,通过墙的两个脚印边缘和所有内层的边缘来表示墙。投影如下图所示。
    SECTION_VIEW

    几何显示表示法显示完整的二维图元表示法时,详细程度通常取决于目标比例,例如,如果图元被剖面线切割,则通过两个内/外边和所有内层的边来表示墙。

    ELEVATION_VIEW

    几何显示表示法显示完整的二维图元表示法时,详细程度通常取决于目标比例,例如,如果图元位于立面视图中,则通过其边界边表示墙。

    USERDEFINED A user defined specification is given by the value of the UserDefinedTargetView attribute.
    NOTDEFINED No specification given.
     

    EXPRESS Specification

    TYPE IfcGeometricProjectionEnum = ENUMERATION OF (
     GRAPH_VIEW,
     SKETCH_VIEW,
     MODEL_VIEW,
     PLAN_VIEW,
     REFLECTED_PLAN_VIEW,
     SECTION_VIEW,
     ELEVATION_VIEW,
     USERDEFINED,
     NOTDEFINED);
    END_TYPE;
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  • 原文地址:https://www.cnblogs.com/herd/p/14409164.html
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