地铁BIM模型Web端轻量化策略及加载优化方法研究  

Web lightweight strategy and loading optimization method for subway BIM model

作　　者：曾文驱 张泽州 邓卓平 ZENG Wenqu;ZHANG Zezhou;DENG Zhuoping(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 611756,China;School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China;Guangzhou Metro Design&Research Institute Co.Ltd.,Guangzhou 510010,China)

机构地区：[1]西南交通大学机械工程学院,成都611756 [2]西南交通大学信息科学与技术学院,成都611756 [3]广州地铁设计研究院股份有限公司,广州510010

出　　处：《铁路计算机应用》2023年第5期26-31,共6页Railway Computer Application

基　　金：国家重点研发计划项目(2022YFC3005203)。

摘　　要：地铁BIM(Building Information Modeling)模型具有体量大、构件重复率高、外形规整等特点,针对其Web端模型加载、渲染效率低下,易导致浏览器卡顿、页面崩溃等问题,提出地铁BIM模型Web端轻量化策略及加载优化方法。验证表明,采用恰当的模型轻量化手段可显著减少复杂建筑模型的面片数量,降低模型存储消耗,结合视锥体剔除算法,能够有效提高渲染帧率与用户交互流畅度。The Building Information Modeling(BIM)model for subway buildings has the characteristics of large volume,high component repetition rate,and regular appearance.Aiming at the low efficiency of its Web side model loading and rendering,which could easily lead to browser jams,page crashes,and other issues,this paper proposed a subway BIM model Web side lightweight strategy and load optimization method.Experiments show that using appropriate model lightweight methods can greatly reduce the number of patches in complex architectural models,reduce model storage consumption,and combine visual cone culling algorithms to effectively improve rendering frame rate and user interaction fluency.

关 键 词：BIM 模型轻量化 视锥体剔除 Web3D渲染 地铁设计 

分 类 号：U231[交通运输工程—道路与铁道工程]