Interactive visualization of magnetic field for virtual science experiments

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• 作者：Jiyoung Park ; KyungOk Lee ; JungHyun Han
• 关键词：Magnetic field visualization ; Virtual experiment ; Elementary school science subjects
• 刊名：Journal of Visualization
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：19
• 期：1
• 页码：129-139
• 全文大小：2,274 KB
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• 作者单位：Jiyoung Park (1)
  KyungOk Lee (2)
  JungHyun Han (1)
  
  1. Graduate School of Convergence IT, Korea University, Seoul, Korea
  2. Duksung Women’s University, Seoul, Korea
  
• 刊物类别：Engineering
• 刊物主题：Computer Imaging, Vision, Pattern Recognition and Graphics
  Engineering Fluid Dynamics
  Classical Continuum Physics
  Engineering Thermodynamics, Heat and Mass Transfer
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1875-8975

文摘

This paper presents a novel application of visualizing 3D magnetic field for virtual science experiments. The magnetic field is visualized as streamlines using view-dependent seed template and occlusion buffer. The template is updated according to the viewpoint/magnet movements and determines 3D seed positions. The occlusion buffer enables us to select a subset of the seeds which do not cause cluttered streamlines. Our method has been designed and implemented through teacher survey. A virtual experiment system is built upon the visualization method. It supports user interactions with magnets and compasses and visualizes the magnetic field at real time. The system was experimented in elementary school science classes. The evaluation results show that our method significantly improved the students’ capabilities of presenting magnetic field. Keywords Magnetic field visualization Virtual experiment Elementary school science subjects