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The Research of Three-dimensional GIS Based on World Wind

YANG Lei,GAO Su-qing(Institute of Command and Automation,PLA UST,Nanjing 210007,China)  
World Wind is a three-dimensional geographic information system developed by the National Aeronautics Space Administration(NASA).It can be used both as an independent GIS application and a plugin which can be integrated with other applications.World Wind is very popular for its powerful function,good expansibility and its opening code.This paper first gives an introduction to the function and high performance architecture of World Wind,then analyzes the data request method and data cache policy of World Wind,finally sets up the develop environment of World Wind based on Client/Server and Brower/Server.
【CateGory Index】: P208;TP393.09
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