基于IFC 4.1标准的EICAD路线数据转换方法

曹炳勇; 施新欣

doi:10.16511/j.cnki.qhdxxb.2021.22.010

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清华大学学报（自然科学版） ›› 2022, Vol. 62 ›› Issue (2) : 321-330. DOI: 10.16511/j.cnki.qhdxxb.2021.22.010

土木工程

基于IFC 4.1标准的EICAD路线数据转换方法

曹炳勇, 施新欣

作者信息 +

Conversion of EICAD route data based on the IFC 4.1 standard

CAO Bingyong, SHI Xinxin

Author information +

文章历史 +

摘要

为了改善二三维路线数据的交互方式，提出了一种基于工业基础类（IFC）4.1标准的EICAD路线数据转换方法。首先分析IFC 4.1标准中路线信息模型的结构层次以及属性继承关系，并通过解析EICAD平竖曲线设计文件，建立EICAD参数数据与IFC线元属性之间的映射关系。以Visual Studio 2019为开发平台，借助xBIM解析工具包，用C#语言开发基于IFC 4.1标准的EICAD路线数据转换程序，该程序用于验证所提出的转换方法。结果表明：所开发的程序能够实现将EICAD平竖曲线设计文件转换为IFC路线文件，且在导入建筑信息模型（BIM）应用软件后可以较为完整地还原路线设计信息。与传统的基于DWG文件的交互方式相比，所提出的方法能够在保证路线精度和软件兼容性的条件下，实现EICAD路线数据与BIM应用软件间的有效传递。

Abstract

Route data transfer from 2D to 3D requires an efficient conversion method of the EICAD route data based on industry foundation classes (IFC) 4.1. This paper first analyzes the structural hierarchy and attribute inheritance of the route information model in IFC 4.1 and establishes the mapping relationship between the EICAD parameter data and the IFC curve segment attributes by parsing the EICAD horizontal and vertical curve design files. A C# conversion program is then developed in Visual Studio 2019 with the xBIM toolkit used to verify the conversion method. The results show that the conversion program can convert the EICAD horizontal and vertical curve design files into an IFC route file with the route design information completely restored after importing the IFC file into the building information modeling (BIM) software. This method provides more accurate, effective transfer of the route data between EICAD and the BIM software than the traditional DWG-based interaction mode.

导出引用

曹炳勇, 施新欣. 基于IFC 4.1标准的EICAD路线数据转换方法[J]. 清华大学学报（自然科学版）. 2022, 62(2): 321-330 https://doi.org/10.16511/j.cnki.qhdxxb.2021.22.010

CAO Bingyong, SHI Xinxin. Conversion of EICAD route data based on the IFC 4.1 standard[J]. Journal of Tsinghua University(Science and Technology). 2022, 62(2): 321-330 https://doi.org/10.16511/j.cnki.qhdxxb.2021.22.010

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收稿日期	出版日期
2020-12-03	2022-02-15
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2022-01-22

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