基于Web的空间数据可视化研究

Research of Visualization of Spatial Data Based on Web

分析了Web环境中空间数据可视化的特征,提出基于结点的面向对象空间数据模型,采用面向对象的方法来表达和管理空间数据;然后设计了一个有效的空间数据可视化体系结构,该体系构架在海量空间数据的组织、管理、传输和显示上有了突破,实现了Web环境下的空间数据可视化.最后给出了该系统的应用实例,该系统具备空间数据的真实感可视化表达、场景实时漫游、交互查询等功能.

This paper analyzes the features of visualization of spatial data in Web environment, proposes an object oriented of node - based spatial data model, which expresses and manages spatial data by means of object - oriented approach, and designs the efficient architecture of visualization of spatial data. The architecture makes a breakthrough in organization, management, transmission and display of large spatial data, implements visualization of spatial data in Web environment. At last, a application is given, it includes functions such as visualization of spatial data, flying via and information inquiring.