基于时间序列的三维模型管理方法研究与实现  

Research and Implementation of Three-dimensional Model Management Method Based on Time Series

作　　者：翟林[1] 杨辉[2] 

机构地区：[1]天津市测绘院,天津300381 [2]武汉大学资源与环境科学学院,湖北武汉430079

出　　处：《城市勘测》2017年第3期27-30,共4页Urban Geotechnical Investigation & Surveying

基　　金：国家自然科技基金项目(41571395)

摘　　要：城市的三维可视化数据作为信息化的基础数据,能够直观地展示城市的原貌,不同时期的三维模型记录了城市的历史变迁。本文针对目前三维历史数据管理较弱的现状,阐述了基于三维模型分层、分区和分级组织方式,设计了"二级更新"和分层、分区更新机制,建立了索引机制,采用了基于时间序列的三维模型管理方法,并基于OSG进行了功能实现,很好地解决了浏览历史三维场景的难题。The three-dimensional visualization data of city as the basic data of information,can display the original appearance of the city intuitively. The three-dimensional model of different period records the historical vicissitude of the city. Based on the current situation of the weak management of three-dimensional historical data,this paper expounds organization of three-dimensional model by layer region and classification,designs two-level updating and hierarchical and zoning update mechanism,and builds an indexing mechanism based on time series. Use the method of three-dimensional model management based on time Series. Implement this method based on the OSG. This method solves the problem of browsing the history of three-dimensional scene,and has certain research significance.

关 键 词：三维可视化 历史数据 二级更新 索引机制 时间序列 

分 类 号：P208.1[天文地球—地图制图学与地理信息工程]