BSP树与格网划分相结合的数字城市三维模型组织方法  

3D model organization method of digital city based on BSP tree and grid division

作　　者：车德福[1] 张春丽 杜海鹰[1] Che Defu;Zhang Chunli;Du Haiying(School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China)

机构地区：[1]东北大学资源与土木工程学院

出　　处：《矿山测量》2019年第4期81-84,共4页Mine Surveying

基　　金：国家自然科学基金(41871310);中央高校基本科研业务专项资金资助项目(N17241004)

摘　　要：日益增长的数字城市三维模型实时可视化显示需求对海量三维模型的高效组织与调度提出了很高的要求,文中基于前人研究成果提出空间分区二叉树(BSP树)与格网划分相结合的数字城市三维模型组织方法,并基于Unity3D采用视点相关的多线程动态调度策略进行了实践应用验证,结果表明该方法高效、可靠,能够满足海量数字城市三维模型的动态可视化与空间分析的需要。The higher requirements were put forwards for the efficient organization of massive 3D model data with the growing real-time visualization of 3D model data of digital city application demand, in this paper, 3D model organization method was proposed combined with binary space partitioning tree (BSP tree) and grid division based on previous research results. In addition, multithreaded dynamic scheduling strategy related to viewpoint based on Unity3D was applied to verify the validation of the method. The results showed that this method was efficient and reliable, and could meet the need of dynamic visualization and spatial analysis of massive 3D model data of digital city.

关 键 词：BSP树 格网划分 三维模型 UNITY3D 

分 类 号：TD672[矿业工程—矿山机电]