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Volumetric Density-Equalizing Reference Map with Applications
Journal of Scientific Computing ( IF 2.8 ) Pub Date : 2021-02-07 , DOI: 10.1007/s10915-021-01411-4
Gary P. T. Choi , Chris H. Rycroft

The density-equalizing map, a technique developed for cartogram creation, has been widely applied to data visualization but only for 2D applications. In this work, we propose a novel method called the volumetric density-equalizing reference map for computing density-equalizing map for volumetric domains. Given a prescribed density distribution in a volumetric domain in \(\mathbb {R}^3\), the proposed method continuously deforms the domain, with different volume elements enlarged or shrunk according to the density distribution. With the aid of the proposed method, medical and sociological data can be visualized via deformations of 3D objects. The method can also be applied to adaptive remeshing and shape modeling. Furthermore, by exploiting the time-dependent nature of the proposed method, applications to shape morphing can be easily achieved. Experimental results are presented to demonstrate the effectiveness of the proposed method.



中文翻译:

体积密度均衡参考图及其应用

密度均衡贴图是为制图创建而开发的一种技术,已广泛应用于数据可视化,但仅适用于2D应用程序。在这项工作中,我们提出了一种新颖的方法,称为体积密度均衡参考图,用于计算体积域的密度均衡图。给定\(\ mathbb {R} ^ 3 \)中的体积域中的指定密度分布,所提出的方法使区域连续变形,不同的体积元素根据密度分布而增大或缩小。借助所提出的方法,可以通过3D对象的变形来可视化医学和社会学数据。该方法还可以应用于自适应网格划分和形状建模。此外,通过利用所提出的方法的时变性质,可以容易地实现对形状变形的应用。实验结果表明该方法的有效性。

更新日期:2021-02-07
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