地理学报 ›› 2001, Vol. 56 ›› Issue (7s): 43-48.doi: 10.11821/xb20017s007

• 多维动态可视化 • 上一篇    下一篇

多维动态地图中时态信息可视化

陈华斌, 李伯楠, 廖克, 池天河, 齐清文   

  1. 中国科学院地理科学与资源研究所,北京100101
  • 收稿日期:2001-06-01 修回日期:2001-08-12 出版日期:2001-12-25 发布日期:2001-12-25
  • 作者简介:陈华斌 (1976-),男,博士生,主要从事网络GIS和多维动态地图可视化研究。E-mail:Chenghb@lreis.ac.cn

Resarch on Temporal Visualization of Multi-dimensional Mapping

CHEN Hua-bin, LI Bo-nan, LIAO Ke, CHI Tian-he, QI Qing-wen   

  1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2001-06-01 Revised:2001-08-12 Online:2001-12-25 Published:2001-12-25

摘要:

讨论了当前有代表性的时态信息数据模型,例如快照模型和更新模型、三维/四维模型、基于事件的时空数据模型等;总结和归纳了地理要素和现象的时空变化形式,如出现和消失、周期性或渐变性的变化、空间上的移动,以及上述几种情况的组合形式等;在此基础上提出了时态信息的地图表达方法,包括基于栅格图像的地图动画、点状要素分布的变化、线状要素的变迁、线状路径自动生成、面状要素随时间推移、面状要素分布的连续变化等,并在“国家自然地图集电子版”中予以实践。此外,还设计了与时态变化相适应的动态用户交互工具和动态符号。

关键词: 多维动态地图可视化, 时态地图, 时空变化, 动态用户交互, 动态符号

Abstract:

The spatial-temporal map visualization is a subset of the research of multi-dimensional dynamical map visualization. It has its specialty because of the temporal relativity. This paper discusses the representative spatio-temporal data structure, such as snapshot and revision model, 3D & 4D models, instance based spatio-temporal data model, etc., and then summarizes and concludes the spatio-temporal changes, including its appearing and disappearing, periodical & gradual changes, as well as moving in the space. Furthermore, the authors bring forward the spatial-temporal mapping methods, including the raster image based map animation, display of point feature changes, linear feature changing and moving, and also the moving and continuous changes of area features, and carries them out in the National Natural Electronic Atlas. Furthermore, this paper designs some spatio-temporal-change-related dynamical interactive tools and dynamical symbols.

Key words: multi dimensional dynamical map, spatio changes, symbol