基于格网锥形方向的关系模型计算方向相似性研究
Research on Calculating Direction Similarity Based on Grid Cone Directional Relation Model
宗琴 1陈慧 2刘文萍3
作者信息
- 1. 重庆建筑工程职业学院,重庆 400072
- 2. 深圳信息职业技术学院,广东 深圳 518172
- 3. 重庆市一三六地质队,重庆 405499
- 折叠
摘要
针对方向关系矩阵在定量计算空间对象方向相似关系方面存在的表达能力、多尺度地图数据下应用能力不足的问题,提出一种格网锥形方向关系模型,完成对空间对象方向关系的定量表达.对同尺度下格网锥形方向关系模型的表达能力进行试验分析,并对不同尺度下格网锥形方向关系模型的应用能力进行分析,分析对比后验证了本文方法可行,空间方向相似性度量结果和人们的认知结果一致,可应用于制图综合、空间数据查询更新、空间数据变化检测等任务.
Abstract
In view of the shortcomings of expression ability and the application ability of multi-scale map data of the directional relation matrix in the quantitative calculation of the directional similarity relationship of spatial objects,a grid cone-shaped directional relation-ship model is proposed to quantitatively express the directional relationship of spatial objects.Through the experimental analysis of the expression ability of the grid cone-shaped directional relation model under the same scale,and the analysis of the application ability of the grid cone-shaped directional relation model under different scales,the analysis and comparison verify that the method in this paper is feasible,the spatial directional similarity measurement results are consistent with the human cognitive results,and can be applied to cartographic generalization,spatial data query and updating,and spatial data change detection and other tasks.
关键词
方向关系/方向相似性/格网锥形方向关系模型/计算方法Key words
directional relationship/directional similarity/grid cone-shaped directional relation model/calculating methods引用本文复制引用
出版年
2024
NETL
NSTL
万方数据