Management and Services for Large-scale Virtual 3D Urban Model Data Based on Network

摘要：

The buildings in modern city are complex and diverse,and the quantity is huge.These bring very big challenge for constructing 3D GIS under network circumstance and eventually realizing the Digital Earth.After analyzed the characteristic of network service about massive 3D urban building model data,this paper focuses on the organization and management of spatial data and the network services strategy,proposes a progressive network transmission schema based on the spatial resolution and the component elements of 3D building model data.Next,this paper put forward multistage-link three-dimensional spatial data organization model and encoding method of spatial index based on fully level quadtree structure.Then,a virtual earth platform,called GeoGlobe,was developed using above theory.Experimental results show that above 3D spatial data management model and service theory can availably provide network services for large-scale 3D urban model data.The application results and user experience good.

关键词： Mass data management progressive transmission 3D GIS 3D model spatial index real-time network services

作者: He Zhengwei Chen Jing Wu Huayi

作者单位: State Key Lab of Information Engineering in Surveying,Mapping and Remote Sensing (Liesmars) Wuhan University,129 Luoyu Road,Wuhan,China,430079

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）