摘要
基于全空间信息系统的应用背景和多粒度时空对象的思想,探讨了时空事件的内涵和基本特征,并提出了多粒度时空事件的概念;分析了现有时空数据模型特点,基于多粒度时空对象数据模型,提出了多粒度时空事件建模的基本理念;以此为依据,针对现有可视化技术的不足,对全空间信息系统对多粒度时空事件的表达特点进行了初步阐述。
In view of pan-spatial information system and spatio-temporal objects of multi-granularity,the connotation and basic characteristics of spatio-temporal events,and definite spatio-temporal events of multi-granularity are discussed.Then,analyzing the usual spatio-temporal data models,and based on spatio-temporal data model of multi-granularity,the basic ideas of spatio-temporal events modeling of multi-granularity are proposed.Finally,considering the shortages of traditional visualization technology,the representation characteristics and applications of spatio-temporal events of multi-granularity on pan-spatial information system are studied.
作者
陈敏颉
江南
陈达
CHEN Minjie;JIANG Nan;CHEN Da(Institute of Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450001,China;31682 Troops,Lanzhou 730020,China)
出处
《地理信息世界》
2018年第2期30-35,共6页
Geomatics World
基金
国家重点研发计划项目(2016YFB0502300)
国家自然科学基金项目(41471336)资助
关键词
时空事件
多粒度时空对象
多粒度时空事件
多粒度时空事件建模
全空间信息系统
可视化表达
spatio-temporal events
spatio-temporal objects of multi-granularity
spatio-temporal events of multigranularity
spatio-temporal events modeling of multi-granularity
pan-spatial information system
visual representation
