摘要
时空对象组成结构用于描述现实世界客观实体之间存在的整体/部分关系,包括逻辑上的组成关系和空间上的结构关系。以时空对象建模为背景,总结了组成结构具有的6个基本特征、基于组成关系的对象相互作用类型以及组成结构的形式化描述方式。在此基础上,分别从类和实例的角度分析了组成结构的建模方法;依据是否考虑空间位置约束,对位置耦合与位置解耦的两类组成结构可视化表达方法进行了阐述,从而为时空对象组成结构的建模与可视表达提供基本思路。
The composition structure of spatio-temporal objects is used to describe the whole/part relations of the geographical entities in the real world, including the logical composition relation and the spatial structure relation. In order to conduct spatio-temporal object modeling, six characteristics of composition structure, interaction types of objects based on composition relation and formalized description are summarized in this paper. On this basis, the modeling methods of composition structure are analyzed from the perspectives of class and instance respectively. Then the spatial coupling and decoupling visualization methods of composition structure are elaborated, which are categorized based on whether or not spatial position is considered. The study in this paper is expected to provide a basic idea for composition structure modeling and visualization.
作者
杨振凯
张江水
李翔
赵鑫科
李清鹏
YANG Zhenkai;ZHANG Jiangshui;LI Xiang;ZHAO Xinke;LI Qingpeng(Information Engineering University,Zhengzhou 450001,China;78102 Troops,Chengdu 610036,China)
出处
《测绘科学技术学报》
CSCD
北大核心
2021年第6期639-645,共7页
Journal of Geomatics Science and Technology
基金
国家重点研发计划项目(2016YFB0502300)。
关键词
组成结构
时空对象
全空间信息系统
整体/部分关系
地理信息建模
composition structure
spatio-temporal objects
pan-spatial information system
whole/part relation
geographic information modeling
