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The application of AJAX technology on Web electronic map development

LIU Xiao-dong ZHU Yi LIU Shen (Chinese Academy of Surveying & Mapping,Beijing 100039)  
With the popularization of E-NetWork,the appli- cation request of e-Map is very largly;But the large magnanimity of GIS datas are challenging to the speed and bandwidth of e-Net- work.As most datas of e_map system which running on the e_ network are images,it solves the problem of Large data,complex data strcture,download plug in etc,But it has limited to inquery or survey function of GIS data.So the problem of vector data run on e- NetWork should be resolved quickly.This text describes the popular work schema of AJAX technology,and introduced its application in the e_map.
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