Jin-yun Fang

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Web-based GIS visual simulation systems have to handle voluminous elevation data sets, but the limited network bandwidth is a bottleneck. One commonly used method to solve this problem is that the data servers provide DEM multi-scale representations which are stored and compressed independently, and transmit corresponding scale data according to the needs(More)
Analyzing the ever-growing market prospects of mobile map services and widespread applications of J2ME client techniques, the paper, firstly, discusses J2ME advantages compared with WAP and BREW in aspects of Web interaction, in-situ data storage or access, software development efficiency etc. And then, it puts emphasis on such programming keynotes as map(More)
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