摘要
空间相似性是GIS的重要理论问题。本文立足于单个居民地多尺度表达时的4种约束条件,即图形约束、拓扑约束、结构约束和格式塔约束,利用数学形态学的方法分别描述并计算单个居民地在图形、结构及内部延伸方向的相似度,并通过实例对本文提出的相似度计算方法进行验证。实验结果表明,该方法计算的结果符合地图认知,能够表达居民地综合前后在图形、结构和方向的相似程度。
Spatial Similarity is an important theoretic issue in the community of geographic information system.Based on the four constraints for multi-scale expressions of individual buildings,i.e.graphic,topological,structural and Gestalt,this paper described and calculated the similarity degree in graphics,structure and internal direction between arbitrary two individual buildings using mathematical morphological method and the validity of the method was demonstrated by examples.The experiment indicated that the result of the method was in accord with human cognition in map space,and it could express similarity degrees of buildings in graphics,structure and internal extension direction before and after map generalization.
出处
《测绘科学》
CSCD
北大核心
2012年第1期98-100,共3页
Science of Surveying and Mapping
基金
国家自然科学基金(40871208)
关键词
居民地
相似度
自动地图综合
individual buildings
similarity degrees
automated map generalization
