多尺度表达中空间拓扑关系等价性评价模型  

Equivalency evaluation model of spatial topological relations in multiple scale representation

作　　者：杜晓初[1] 熊建国[2] 

机构地区：[1]湖北大学资源环境学院,武汉430062 [2]华北电力大学计算机科学学院,北京102206

出　　处：《测绘科学》2007年第5期70-72,共3页Science of Surveying and Mapping

基　　金：国家自然科学基金(40571133);测绘遥感信息工程国家重点实验室基金(040301)

摘　　要：本文主要讨论不同尺度下地理目标之间拓扑关系的等价性问题。根据人类认知习惯,得出从大比例尺地理空间中拓扑关系抽象为小比例尺空间中拓扑关系应当遵循的基本规则,并利用模糊函数将这些规则定量化;在此基础上,得到评价地理空间场景中多个空间目标之间拓扑关系在不同尺度下是否等价的综合评价模型。该模型可以用于检验和维护空间数据质量、为地图自动综合提供空间关系处理和评价方法的参考。Issue on equivalency of topological relations between geographical objects in different scales is discussed in this paper.In terms of cognitive habits of human,elementary rules which topological relations should hold while abstracting from large scale geographical space to small are obtained,these rules are quantified using fuzzy functions at the same time.Based on this,equivalency evaluation model of topological relations in geographical space scene is obtained.The model can be used to check and maintain quality of spatial data,and provide process and evaluation methods of spatial relations for automatic cartographical generalization.

关 键 词：多尺度表达 空间拓扑关系 等价性评价 

分 类 号：P282[天文地球—地图制图学与地理信息工程]