优化CityGML的室内三维拓扑数据模型  

An optimized CityGML-based 3D indoor topological data model

作　　者：孙群[1] 詹新武 SUN Qun;ZHAN Xinwu(School of Hydraulic and Ecological Engineering,Nanchang Institute of Technology,Nanchang 330099,China)

机构地区：[1]南昌工程学院水利与生态工程学院,江西南昌330099

出　　处：《南昌工程学院学报》2023年第6期65-70,98,共7页Journal of Nanchang Institute of Technology

基　　金：江西省教育厅科学技术研究项目(GJJ2201502);南昌工程学院博士科研启动项目(2022kyqd014)。

摘　　要：针对当前三维模型城市地理标记语言(CityGML)尚未表达建筑物室内空间拓扑关系等问题,在优化CityGML建筑物模型的基础上,提出了一种室内三维拓扑数据模型。采用结点(Node)、边(Edge)、环(Loop)、面(Face)和体(Solid)5种拓扑基元,制定了相应的拓扑一致性规则,表达了室内空间体对象的拓扑层次组合关系相邻体共面的拓扑邻接关系。实验结果表明,通过建立显式的室内空间拓扑关系,可有效进行室内空间基本信息查询及室内空间拓扑邻接关系查询,为当前智慧城市建设的室内位置服务与应用提供有效的基础数据。In view of the problem that the current 3D model based on CityGeographic Markup Language(CityGML)has not yet expressed the topological relationship of indoor space in buildings,an indoor 3D topological data model is proposed based on the optimized CityGML building model.Five topological primitives,namely Node,Edge,Loop,Face,and Solid,were used to formulate corresponding topological consistency rules,expressing the topological hierarchical combination relationship of indoor spatial objects and the topological adjacency relationship of adjacent coplanar bodies.The experimental results indicate that by establishing explicit indoor spatial topological relationships,basic indoor spatial information and indoor spatial topological adjacency relationships can be effectively queried,providing effective basic data for indoor location services and applications in current smart city construction.

关 键 词：室内数据模型 拓扑关系 城市地理标记语言 三维GIS 

分 类 号：P208[天文地球—地图制图学与地理信息工程]