城市拟三维地图生产方法与应用技术研究

Research on the New Construction Method of City Simulated 3D Maps

通过对传统2.5维地图生产方法进行改进和创新,利用矢量空间分析算法,设计了基于影响范围的渲染索引机制,形成了一套自动化、智能化的地图生产方式,同时突破了传统的2.5维地图的应用瓶颈,为其增加了多角度场景环视和立体空间分析能力,使其生产成果真正迈上了三维应用的台阶,成为了兼具二维和三维地图应用优势的轻量级"拟三维"地图产品。以此方法为基础,搭建了上海市拟三维地图应用系统,为上海公共服务平台的建设和创新发挥了重要作用。

The original way to product 2. 5D City maps has been improved in this paper. Based on spatial analysis,a map indexing rendering mechanism was designed to product the maps application automatically and intelligently. The research also focused on creating the capability of multi-angle views and 3D spatial analysis for the original 2. 5D maps,which could make it as a real light 3D application that,could be called ＂simulated 3D＂maps. The technology was used to construct the simulated 3D maps application of Shanghai,which will play a part in the construction of intelligent city in Shanghai.