时空拓扑关系的集成表达

Integrating Expression of Spatio-temporal Topological Relationships

针对地理实体之间的时空拓扑关系,阐述了当前被普遍接受的空间和时态拓扑关系模型、基于点集和逻辑谓词集的描述方法。基于8种时态和空间拓扑关系逻辑谓词,提出时空数据库中时空拓扑关系集成表达(或称联合表达)的64种情况,分别利用英文缩写字母和关系图2种形式对其进行了描述。最后,通过示例的应用说明时空拓扑关系集成表达的具体情形。

According to the spatio-temporal topological relationship of entities, this paper sets forth the recent popularly spatial and temporal topology module, point-set and predicate-set description methods. The paper puts forward integrating expression of spatiotemporal topological relationships in the ST-database based on the eight spatial and temporal topology, 64 patterns, and describes them as abbreviate words and relative-figures. Finally, it illustrates the integrating expression of spatio-temporal topological relationships in detail through instance.