一种顾及拓扑关系的室内三维模型组织和调度方法  

Organization and Scheduling of Indoor Three-Dimensional Geometric Model Based on Spatial Topological Relation

作　　者：王行风[1,2] 汪云甲[1,2] WANG Xingfeng WANG Yunjia(Key Laboratory for Land Environment and Disaster Monitoring of SBSM, China University of Mining and Technology, Xuzhou 221116, China School of Environment and Spatial lnformatics, China University of Mining and Technology, Xuzhou 221116, China)

机构地区：[1]中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州221116 [2]中国矿业大学环境与测绘学院,江苏徐州221116

出　　处：《武汉大学学报（信息科学版）》2017年第1期35-42,共8页Geomatics and Information Science of Wuhan University

基　　金：国家"十三五"重点研发计划(2016YFB0502100)~~

摘　　要：针对室内空间三维导航、几何模型高质量渲染的需求与个人移动平台资源、计算能力有限之间的矛盾,在分析室内空间区域功能、明确室内单元类型的基础上,构建了能够表达室内空间各部分拓扑特征,且支持三维路径分析的室内空间网络拓扑关系模型,并在准确把握室内空间区域拓扑逻辑关系的前提下,探讨了顾及室内拓扑关系的空间分割和几何模型的组织和调度策略,以实现室内模型的动态遮断和剔除。实验结果表明,利用所提方法可以实现几何模型的实时遮断和剪裁,大幅度减少模型绘制的数量和数据量,提升数据传输和绘制的效率,为高逼真度的三维模型可视化绘制奠定了数据基础和保证。Based on the analyses of unit functions and unit function types of the interior space,an interior-space network-topology model that contained semantic information,supported path analysis,and fully expressed the topological logic of the various parts of the interior space was constructed after considering the demand for three-dimensional（3D）high-quality space navigation rendering,and limitations in personal mobile platform resources and computing power.In addition,by accurately determining the regions and topological logic of the interior space,strategies for space division and organization and strategy adjustment of geometric models based on topological relations of the interior space were explored,achieving the goal of dynamic interruption and elimination of interior models.The applicability,feasibility,and effectiveness of the proposed model were verified by performing actual tests using personal mobile platforms.The results indicated that the methods proposed in this study could interrupt and eliminate geometric models in real time,significantly reducing the number of models rendered and enhancing data transmission and rendering efficiency.This method provided reliable data and assurance concerning the visualization and rendering of high-fidelity 3D models.

关 键 词：室内三维导航 拓扑关系 移动地理信息系统 虚拟现实 个人移动平台 

分 类 号：P208[天文地球—地图制图学与地理信息工程]