| AR物理实验中的磁感线仿真 |
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| 引用本文： | 苗晋达,罗天任,蔡宁,张明敏,潘志庚. AR物理实验中的磁感线仿真[J]. 图学学报, 2021, 42(1): 87-93. DOI: 10.11996/JG.j.2095-302X.2021010087 |
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| 作者姓名： | 苗晋达 罗天任 蔡宁 张明敏 潘志庚 |
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| 作者单位： | 浙江大学计算机科学与技术学院,浙江杭州310012;杭州师范大学虚拟现实与智能系统研究院,浙江杭州311121 |
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| 基金项目： | 国家重点研发计划项目(2018YFB1004900)。 |
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| 摘 要： | 针对如何在中学物理实验中,在增强现实(AR)的虚拟环境中模拟出符合物理规律的磁感线、电场线等曲线的问题,研究了一套在三维空间中拟合出符合磁感线性质的磁感线算法,并将其应用到多模态自然交互的AR实验系统中.该算法使用四阶龙格库塔方法生成磁感线,并在必要时使用能量最小化的方法进行修正.该AR系统使用基于实物套件的增强现实并...
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| 关 键 词： | 磁感线 仿真 MARK 龙格库塔方法 修正 |
Simulation of magnetic lines in AR physics experiments |
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| MIAO Jin-da,LUO Tian-ren,CAI Ning,ZHANG Ming-min,PAN Zhi-geng. Simulation of magnetic lines in AR physics experiments[J]. Journal of Graphics, 2021, 42(1): 87-93. DOI: 10.11996/JG.j.2095-302X.2021010087 |
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| Authors: | MIAO Jin-da LUO Tian-ren CAI Ning ZHANG Ming-min PAN Zhi-geng |
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| Affiliation: | 1. School of Computer Science and Technology, Zhejiang University, Hangzhou Zhejiang 310012, China; 2. Virtual Reality and Intelligent Systems Research Institute, Hangzhou Normal University, Hangzhou Zhejiang 311121, China |
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| Abstract: | This paper proposed a virtual-real fusion simulation method of magnetic lines suitable for middle school experiments,and explored a set of algorithms applicable to the properties of magnetic lines in 3D space.It was applied to the multi-modal natural interactive augmented reality(AR)experiment system.This algorithm employed RK4 to generate magnetic induction lines and adopted the minimum energy method to revise them when necessary.The AR system utilized augmented reality based on physical kits and the multi-camera cooperative AR three-dimensional registration to overcome the traditional problem of two-dimensional MARK tracking failure.Finally,an electro-magnetic experiment commonly conducted in middle school teaching was taken as an example to test this magnetic induction line generation algorithm.Tests results show that these magnetic induction lines conform to the laws of physics and can better facilitate the electromagnetics-related physical experiments,which is of practical significance.By magnifying the phenomenon of the experiment,it is conducive to students’understanding of physical concepts. |
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| Keywords: | magnetic lines simulation MARK Runge Kutta method revise |
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