Conversion of EICAD route data based on the IFC 4.1 standard

CAO Bingyong; SHI Xinxin

doi:10.16511/j.cnki.qhdxxb.2021.22.010

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Journal of Tsinghua University(Science and Technology) ›› 2022, Vol. 62 ›› Issue (2) : 321-330. DOI: 10.16511/j.cnki.qhdxxb.2021.22.010

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Conversion of EICAD route data based on the IFC 4.1 standard

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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.

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industry foundation classes (IFC) 4.1 / EICAD / route information / horizontal and vertical curve / data conversion / xBIM

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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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