| 凸壳原理在点群目标综合中的应用 |
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| 引用本文： | 毋河海.凸壳原理在点群目标综合中的应用[J].测绘工程,1997,6(1):1-6. |
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| 作者姓名： | 毋河海 |
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| 作者单位： | 武汉测绘科技大学 |
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| 摘 要： | 对聚焦分布的点群，借助凸壳算法形成多层嵌套，以反映它的逐层分布特征，为点群目标的２经选取提供整体分布控制，借助ＶＯＲＯＮＩ图各个特体的区域性评价提供补充性的量化依据。综合过程分为两个子过程：凸壳层的合并和多边形折线顶点的综合。
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| 关 键 词： | 点群目标 凸壳 结构化综合 目标选取 地图 制图 |
Principle of Convex Hull and Its Applications in Generalization of Grouped Point Objects |
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| Wu Hehai.Principle of Convex Hull and Its Applications in Generalization of Grouped Point Objects[J].Engineering of Surveying and Mapping,1997,6(1):1-6. |
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| Authors: | Wu Hehai |
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| Abstract: | 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. |
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| Keywords: | Grouped point object Convex hull Structured generalization Object selection |
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