摘要： 针对二维欧氏空间内的平面移动点对象，该文基于“9交模型”，定义了参考地物的空间拓扑关系模型，并将该模型表示为3个连续观测时刻的拓扑关系的三元组，给出了移动点对象与参考点、线和面地物的空间拓扑关系的定性表达。该模型可以清楚地刻画移动点对象相对于参考地物的运动变化情况，对于智能交通、移动位置服务等应用具有重要的意义。

关键词: 移动点对象, 空间拓扑关系, 参考地物, 地理信息系统

Abstract: Aiming at planar moving points in the Euclidean space, based on 9I model, this paper defines spatial topological relations model of reference features, which is expressed as a triple of the topological relations at the three sequential times, describes the categorical topological relations between moving points and reference points, or reference features in lines and polygons. The model expresses the dynamic characteristics of moving points clearly, which is significant for researches of intelligent transportation and LBS applications.

Key words: moving point, spatial topological relation, reference features, GIS

中图分类号: 

• TP393