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GIS中由多种方向关系推理拓扑关系的方法

Inferring Topological Relations from Multi-Kinds of Direction Relations in Geographical Information System

  • 摘要: 研究了根据多种方向关系(包括内部、边界、环部和外部等方向关系)推理拓扑关系的方法.在推理中,首先提出了根据单种方向关系推理拓扑关系的规则;然后,将多种方向关系的组合分为4种基本类型,每种类型的推理方法和规则可表示为单种方向关系推理的组合;最后,讨论了根据多种方向关系可得到的拓扑关系的几何关系、约束条件和推理规则,根据多种方向关系推理拓扑关系的方法和规则可用于空间数据库查询和基于内容的数据检索.

     

    Abstract: So far, the qualitative spatial relations reasoning mainly focuses on the methods for inferring relations from single kind of spatial relations, while the methods for composing multi-kinds of spatial relations are paid little attention to. This article focuses on the methods for inferring topological relations from multi-kinds of direction relations. Firstly, the compose table and the results of inferring topological relations from single kind direction relation are investigated. Secondly, the combination of multi-kinds of direction relations is classified into four basic groups, and the method and rules for each group are implemented by combining the results and rules from single kind of direction relations. Finally, the geometry relations, constraint conditions and rules derived from multi-kinds of direction relations are discussed and applied to rule out impossible and redundant results. The results and rules can be used in spatial database query and spatial data retrieval based on contents.

     

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