系统仿真学报 ›› 2021, Vol. 33 ›› Issue (7): 1626-1637.doi: 10.16182/j.issn1004731x.joss.20-0791

• 仿真建模理论与方法 • 上一篇    下一篇

基于结构匹配的建筑信息模型构件快速对齐方法

刘小军1, 贺长雁2, 刘畅3,*, 贾金原4   

  1. 1.嘉兴南湖学院 信息工程学院,浙江 嘉兴 314001;
    2.嘉兴学院 师范学院,浙江 嘉兴 314001;
    3.南昌航空大学 信息工程学院,江西 南昌 330063;
    4.同济大学 软件学院,上海 201804
  • 收稿日期:2020-10-16 修回日期:2020-11-16 出版日期:2021-07-18 发布日期:2021-07-20
  • 通讯作者: 刘畅(1983-),男,博士,讲师,研究方向为虚拟现实,植物建模,3D游戏引擎等。E-mail:70202@nchu.edu.cn
  • 作者简介:刘小军(1981-),男,博士,讲师,研究方向为图形学、图论算法、BIM数据分析等。E-mail:xjliu1204@126.com
  • 基金资助:
    2020年浙江省教育厅一般科研项目(Y202044717); 嘉兴学院科研启动(科技)项目(CD70519007)

Fast Alignment of BIM Products Based on Structure Matching

Liu Xiaojun1, He Changyan2, Liu Chang3,*, Jia Jinyuan4   

  1. 1. College of Information Engineering, Jiaxing Nanhu University, Jiaxing 314001, China;
    2. Normal College, Jiaxing University, Jiaxing 314001, China;
    3. Shool of Information Technology, Nanchang Hangkong University, Nanchang 330063, China;
    4. School of Software Engineering, Tongji University, Shanghai 201804, China
  • Received:2020-10-16 Revised:2020-11-16 Online:2021-07-18 Published:2021-07-20

摘要: 基于结构匹配思想实现了建筑信息模型(Building Information Modeling, BIM)构件(或模型)的快速对齐。提出一种构件Item结构图(Item-based Structure Graph, ISG)作为BIM构件特征描述符;基于分解图匹配改进的图匹配算法被应用到ISG匹配过程中,解决了构件匹配中因对称切换引起的误匹配问题;扩展以上匹配算法,使其支持部分匹配下的BIM构件快速对齐,兼容同族类构件下自定义构件中的部分Item差异。实验结果表明:该更贴合于BIM构件的数据特点,能提高构件对齐的效率和准确性,在BIM构件对齐、场景轻量化等过程中有较好的实用性。

关键词: 建筑信息模型构件, 图匹配, 形状对齐, 工业基础类, 轻量化

Abstract: The fast alignment of BIM products based on structure matching is realized. An Item-based Structure Graph (ISG) is proposed as the structure-aware shape descriptor for BIM products. An improved graph matching algorithm upon Factorized Graph Matching (FGM) is implemented in ISG matching, in which the mismatch caused by symmetry switching is avoided. Further extension is made to support the alignment under partial matching for BIM products from the same family. The experiment result shows that ISG can meet the characteristics of BIM products, improve the efficiency and accuracy, and can be applied in dealing with products alignment, BIM data lightweighting, etc.

Key words: Building Information Modeling(BIM) product, graph matching, shape alignment, Industry Foundation Classes(IFC), lightweight

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