【摘要】 WebGIS在传输GIS中的海量数据时由于Internet带宽的限制有很大的缺陷,因此海量数据的传输是目前WebGIS亟待解决的一个问题.本文介绍了目前WebGIS中为解决传输速度问题所应用的几种矢量数据压缩方法,然后对这些算法进行了比较分析.更多还原

【Abstract】 In recent years, both of GIS and Internet have been greatly developed.As a product of their integration, WebGIS has been even more developed. But the delivery of mass data is an exact problem which should be resolved by WebGIS. Therefore, this paper presents some vector data compress methods for solving the problems of transferring data rate in Internet. A comparitive analysis and its conclusion are stated.更多还原