杜世宏, 王桥, 李治江. GIS中自然语言空间关系定义[J]. 武汉大学学报 ( 信息科学版), 2005, 30(6): 533-538.
引用本文: 杜世宏, 王桥, 李治江. GIS中自然语言空间关系定义[J]. 武汉大学学报 ( 信息科学版), 2005, 30(6): 533-538.
DU Shihong, WANG Qiao, LI Zhijiang. Definitions of Natural-Language Spatial Relations in GIS[J]. Geomatics and Information Science of Wuhan University, 2005, 30(6): 533-538.
Citation: DU Shihong, WANG Qiao, LI Zhijiang. Definitions of Natural-Language Spatial Relations in GIS[J]. Geomatics and Information Science of Wuhan University, 2005, 30(6): 533-538.

GIS中自然语言空间关系定义

Definitions of Natural-Language Spatial Relations in GIS

  • 摘要: 针对现有空间关系描述方法的缺点,基于一种新的方向关系———细节方向关系,并结合外部方向关系、拓扑关系,研究了自然语言空间关系的定义和描述方法及其在空间数据库中的查询实现

     

    Abstract: The detailed direction relations are proposed to describe the directions related to the interior of spatial objects, such as “east part of a polygon”, “east boundary of a polygon”, etc. Then this paper, integrates the detailed directions with exterior direction relations and topological relations and defines several NLSRs. Finally, based on the NLSRs, a natural spatial query language (NSQL) is formed to retrieve spatial data from spatial databases.

     

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