摘要
传统的WebGIS有两个突出的局限:一是响应速度不够理想,客户端体验较差;二是大多只能支持栅格图像的发布。作为Web2.0的关键技术,Ajax已在Google Map的应用中取得巨大成功。本文在分析Google Map实现原理的基础上,结合未来网络图形的发展趋势,提出了一种新的基于Ajax的矢量WebGIS模式,并实现了相应的系统功能。该结构模式增强了客户端的用户体验,减轻了服务器的压力,有效地解决了传统WebGIS的局限性。
There are two shortcomings in traditional WebGIS: one is the slow response speed and bad user experience,the other is the only support of raster picture.Ajax,as the main technology of Web2.0,has made a great success in the application of Google Map.Based on the analysis of Google Map and Ajax,a new framework of vector WebGIS mode is designed,and its function is realized too.This mode can strengthen user experience in the client,and lighten the pressure in the server,which effectively resolve the limitation of traditional WebGIS and will be the representation of future WebGIS.
出处
《测绘科学》
CSCD
北大核心
2007年第5期158-160,共3页
Science of Surveying and Mapping
