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《Engineering of Surveying and Mapping》 1997-01
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Principle of Convex Hull and Its Applications in Generalization of Grouped Point Objects

Wu Hehai (Wuhan Technical University of Surveying and Mapping, Wuhan, China, 430070)  
With the help of convex hull algorithm, a multiple embedded convex poly-gons are constructed which represent the distribution structure and provide a controlmechtanism for structured selection of point objects. Voronoi diagram gives an addition-al quantized criterion guaranteeing a more reasonable selection. The main steps of gen-eralization consist of two subprocesses: reduring the number of embedded polygonsthrough merging the neighbouring polygoas and selecting the point objects along thenew generated polygons.
【Fund】: 国家自然科学基金资助项目 编号49571061
【CateGory Index】: P283.7
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