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The Use of Multi-Source Vector Data in Digital Map Publish

WU Shan-ming, LIU Zhen (Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China)  
With the rapid development and the wide application of high-tech such as computer technology and internet, map publish is developing from traditional analogue phase to digital phase. This paper analyzes the problems in data input of digital map publish especially in vector data input, and indicates the importance of multi-source vector data use. It also discusses the theory about it, and puts forward three steps such as source data description, data structure mapping and data recombination. An example about MapGIS ASCⅡ format data is provided in the end.
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