The past 40 years have witnessed dramatic changes in Connotation and the way of application of GIS. Because traditional Desktop GIS software are separated between different systems, which result in strong intra-correlation, and it is hard for them to share data and interpolation The emergence of WEBGIS in the 1990s, which is able to provide
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The rapid development of Web Service has brought new opportunities for the development of the WebGIS applications. Due to various limitation of single structure, traditional WebGIS application mainly focus on provision of geographical data service instead of providing geoprocessing functions such as spatial analysis functions in the desktop application. Web-based geoprocessing services make user easily
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