宗地时空拓扑关系表达与判别  

Representation and detection of parcel spatio-temporal topological relationships

作　　者：吴长彬[1] 陈霞[1] 

机构地区：[1]南京师范大学虚拟地理环境教育部重点实验室,江苏南京210046

出　　处：《解放军理工大学学报（自然科学版）》2012年第1期51-56,共6页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(41101350)

摘　　要：时空拓扑关系对时空变化语义分析和时空推理具有重要意义。根据地理信息特征,定义了三维欧氏空间里时空体和时空对象,阐述了时空拓扑关系的涵义,包含时间、位置、状态、事件等之间的拓扑关系。利用4I模型描述时空拓扑关系。以宗地缩小、扩充、分割、合并、部分占用、边界调整等几种不同变更类型为例,分析了宗地变更前后可能的时空拓扑关系,归纳出其必须满足的6个一般性推论,给出应用的具体实例。结果表明,基于时空拓扑关系可隐式地判别出2个宗地时空对象之间是否存在父子关系,及可能的变更操作语义类型。Although theory of spatial topological relationships has achieved some progresses, topologmal relationships between spatio-temporal objects are less studied. Definition is made that topological relationships between spatio-temporal cube is composed of time, space, status and event relation. And spatio-tem- poral topological relationships can be represented by extended 4I model. Taking cadastral parcels as an example, there are different possible spatio-temporal topological relationships between parcels when they are extended, shrunken, split, or merged. Thus, some deductions are drawn that parcels are unlikely to be overlapped if they have been coexisting for some time. Furthermore, the parents of parcels alternated and their possible change types can be detected by their spatio-temporal topological relationships.

关 键 词：时空体 时空拓扑关系 宗地 语义 

分 类 号：P208[天文地球—地图制图学与地理信息工程]