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《Science of Surveying and Mapping》 2009-02
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The research of the double direction buffering algorithm and its application on the generalizing of chart linear feature

GAO Wang-jun①,PENG Ren-can ①,CHEN Yi①,GUO Li-xin①,LIU Guo-hui②(① Department of Hydrography and Cartography, Dalian Naval Academy, Dalian 116018, China;② Institute of Surveying and Mapping , Information Engineering University , Zhengzhou 450052,China)  
In this paper, the actuality and the common algorithm of the chart linear feature automatic generalization were analyzed. The concept and the definition of the double direction buffering algorithm were introduced. Then the characteristics of the double direction buffering algorithm were studied and proved. The principle of generalizing the chart linear feature was analyzed based on double direction buffering algorithm, and the advantages of the double direction buffering algorithm to the common algorithms, such as the perpendicular distance algorithm, was compared. Experimrntal result indicated that it was feasible to decide the buffering radius with these methods.
【Fund】: 国家自然科学基金资助项目(40671161)
【CateGory Index】: P282
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