应用于村镇信息自助平台的电子地图构件关键技术研究  

Research on the Key Technologies of Electronic Map Component Applying to County Self-assist Platform

作　　者：常燕[1] 刘纯波[2] 梁星涛 刘素红[1] 

机构地区：[1]北京师范大学地理学与遥感科学学院,北京100875 [2]中国科学院遥感应用研究所,北京100101 [3]北京天宇数字城市科技有限公司,北京100086

出　　处：《地理信息世界》2009年第6期57-62,71,共7页Geomatics World

基　　金：国家科技支撑计划项目资助(2006BAJ09B0301);(2006BAJ05A01-05)

摘　　要：从构件化村镇信息自助平台的低成本、易定制的特点出发,针对其中电子地图构件在地图浏览和交互查询中存在的网络负载大、响应速度慢等技术问题,研究了传统We-bGIS空间数据网络发布模式及其不足,探讨了基于AJAX、地图切片、多级缓存技术的电子地图发布解决方案,并实现了在村镇信息自助平台上的应用。To solve the problems sucb as heavy network loading and a slow response speed that exist in map browsing and interactive quely of tbe electric map component applied to a low- cost easy-customized component based county serf-assist platfor,n, this paper analyzed the spatial data web publishing module of traditional WebGIS as well as its disadvantages. And then it discussed the electric map publishing solution based on AJAX, map tile and muhicache technology. At last, it implemented the electronic map component applying to county self-assist platform based on these methods.

关 键 词：WEBGIS 空间数据 电子地图 AJAX 地图切片 多级缓存 低成本 

分 类 号：P208[天文地球—地图制图学与地理信息工程]