计算机与现代化

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 基于三维GIS的环境信息动态可视化

  

  1. 天津大学计算机科学与技术学院,天津300072
  • 收稿日期:2014-12-24 出版日期:2015-04-27 发布日期:2015-04-29
  • 作者简介:李国瑞(1990-),男,山西大同人,天津大学计算机科学与技术学院硕士研究生,研究方向:GIS,数据可视化; 车明(1964-),男,天津人,副教授,硕士生导师,硕士,研究方向: 嵌入式系统设计与应用,计算机自动控制系统,无障碍人机交互技术; 王琳慧(1991-),女,河北邯郸人,硕士研究生,研究方向:LBS,数据可视化。
  • 基金资助:
     国家科技支撑计划项目(2012BAJ24B00)

 A Dynamic Visualization Method for Environmental Information Based on 3D GIS

  1. School of Computer Science and Technology, Tianjin University, Tianjin 300072, China
  • Received:2014-12-24 Online:2015-04-27 Published:2015-04-29

摘要:

 环境问题日益加剧,人们对其关注度与日俱增,而目前鲜有直观、有特色的大气污染展示平台。针对这种情况,本文提出一种基于三维GIS的环境信息动态可视化方法,通过扫描线算法确
定研究区域,经过交叉验证比较,选用克里金插值算法对数据进行插值,将插值所得数据处理后发布为KML文件,并在嵌入Google Earth的网页中进行显示。本文以中国境内PM2.5监测数据为例进行可视
化效果展示,实验结果表明,此可视化方法可以直观、准确地展示数据,帮助使用者更加方便地了解当前的环境信息。

关键词:  , 三维可视化, Google Earth, 扫描线算法, 克里金插值, 环境信息, PM2.5

Abstract:

Due to the growing environmental problems, people would pay more attention to their information. But the currently available information display platform is
relatively simple, not intuitive as well. In view of this situation, this paper proposes a dynamic visualization method for the environmental information based on 3D GIS. The
research area is determined by sweepline algorithm, according to cross-validation, Kriging interpolation is adopted, and the interpolated data is processed before released as
KML file, then the data is displayed with Google Earth embedded in a Web page. This paper will take PM2.5 monitoring data in China as an example to demonstrate the visualization
effect, the experimental results show that this visualization method displayed the data directly and accurately, which help users more convenient to understand the current
environmental information.

Key words:  three-dimensional visualization, Google Earth, sweepline algorithm, Kriging interpolation, environment information, PM2.5