基于滚球法的面要素聚合

发布时间：2018-01-19 18:17

  本文关键词： 面要素 滚球法 聚类 综合　出处：《测绘科学》2017年10期 　论文类型：期刊论文

【摘要】：在自动制图综合中,面要素聚合较为常用的方法是利用聚类方法将面要素聚类为若干个类簇,进而将每个类簇合并为更大的多边形图斑。针对地图制图领域的前沿研究课题——地图自动综合,该文提出了一种基于滚球法的面状要素聚合的新方法,通过实验阐述了该方法在居民地等面要素综合中的应用,并与传统的聚合算法进行了效率上的对比分析。该方法较传统的聚合方法效率上有很大提高,在大数据量聚合中有一定的应用前景,当选择合适的滚球半径进行综合时,有较理想的结果。
[Abstract]:In automatic cartographic generalization, the common method of surface element aggregation is to cluster surface elements into several clusters by clustering method. Then, each cluster is merged into larger polygonal patches. A new method of surface element aggregation based on ball rolling is proposed to solve the problem of map automatic synthesis, which is one of the leading research topics in the field of cartography. Through experiments, the application of this method in the synthesis of residents' isoparametric elements is described, and the efficiency of this method is compared with that of the traditional aggregation algorithm. The efficiency of this method is greatly improved than that of the traditional polymerization method. It has a certain application prospect in the aggregation of large amount of data. When the appropriate radius of rolling sphere is selected for synthesis, it has a better result.
【作者单位】： 武汉大学测绘遥感信息工程国家重点实验室;
【分类号】：P283.7
【正文快照】： 0引言制图综合是在比例尺由大到小变化的过程中,按照相关规则对地图内容进行筛选、抽象、概括、平移等操作,从而形成另一种比例尺地图的过程[1-5]。在自动制图综合中,面要素聚合较为常用的方法是利用聚类方法将面要素聚类为若干个类簇,进而将每个类簇合并为更大的多边形图斑。，

本文编号：1444971