摘要
目前由于Internet带宽的限制,WebGIS对空间数据的访问是WebGIS发展的瓶颈。因此为满足WebGIS对空间数据的统一管理和运行速度这两个方面的要求,该文实践了一种基于扩展改进的空间数据库模型,并提出了一种新的空间数据索引模型,通过一系列的实验验证了这种模型满足WebGIS需求,最后将该模型在WebGIS中得到了原型实现。
At present, because of bandwidth limitation of Internet, access to spatial data is the bottleneck of WebGIS. In order to meet the both requirements of uniform management and operational speed, in this paper, an improved spatial database model is realized and a new spatial data model of index is presented, and then the prototype of this model was built in the WebGIS. A series of experiments prove that this model fit for WebGIS.
出处
《北京测绘》
2007年第4期28-31,共4页
Beijing Surveying and Mapping
