3维实景地理信息网络平台关键技术研究

Study on the Key Technologies of Real 3D Geographic Information Network Platform

随着信息技术的飞速发展,3维空间信息系统成为国内外行业厂商和研究机构关注的重点,如Google的Google Earth。针对3维地理信息模型、瓦片金字塔技术、数据请求调度策略、可视化全球地形模型等相关的关键技术进行了分析,并描述了我们开发成功的3维实景地理信息网络平台及其应用。

With the rapid development of information technologies,three-dimensional（3D）geospatial information systems,such as Google Earth,are becoming the focus of attention for the companies and research institutes home and abroad.This paper analyzed the related techniques including 3D geographic model,tile pyramid technique,data request and dispatch strategy and the whole globe terrain model visualization,and introduced the successful real 3D geographic information network platform developed by us and its applications.