保持空间分布特征的散列式居民地综合选取方法  

A Method of Automatic Selection of Hash-Style Habitation with Spatial Distribution Characteristics Preserved

作　　者：高凯[1,2,3] 杨敏[4] 张跃鹏[2,3] 

机构地区：[1]信息工程大学,河南郑州450001 [2]地理信息工程国家重点实验室,陕西西安710054 [3]西安测绘研究所,陕西西安710054 [4]武汉大学资源与环境科学学院,湖北武汉430072

出　　处：《测绘科学技术学报》2015年第6期626-630,共5页Journal of Geomatics Science and Technology

基　　金：地理信息工程国家重点实验室开放研究基金项目(SKLGIE2014-M-4-5)

摘　　要：中小比例尺地形图上存在大量由不依比例尺"房屋群"构成的散列式居民地,综合选取时除考虑单个房屋专题重要性外,还要保持各房屋群的分布特征。将基于Vorinoi图模型的点群化简算法应用到散列式居民地选取中,在综合选取的两个主要过程(选取定额模型和结构化选取方法)中综合考虑分布密度、分布范围等分布结构信息和专题属性信息。实验分析表明,该方法保留重要居民地的同时,能够较好地保持原有的空间分布特征。There are a large number of hash-style habitations which are not consisting with the scale in small or medium-scale topographic maps. Automatic selection should not only consider the thematic importance of a single house, but also maintain the distribution of the group. This research applied the algorithm of point cluster selection based on Voronoi diagram model to the selecting of hash-style habitation. During the two comprehensive selecting processes of fixed selection model and structured selection model, distribution density, distribution range and other distribution structural information and thematic attribute were considered together. And this method can preserve the important habitation and the original spatial distribution characteristic at the same time through experimental analysis.

关 键 词：地图综合 散列式房屋选取 开方根定律 VORONOI图 空间分布特征 

分 类 号：P208[天文地球—地图制图学与地理信息工程]