Visualizing 2D Flows with Animated Arrow Plots
Visualizing 2D Flows with Animated Arrow Plots
复制标题
使用动画箭头图可视化 2D 流
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Dmitry Sokolov
中科院分区：
文献类型：
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作者：
B. Jobard;N. Ray;Dmitry Sokolov
流场通常由一组静态箭头表示，以说明科学庸俗化，纪录片，气象学等。这种简单的示意图可以让观察者直观地解释流的主要属性：它的方向和速度大小。我们建议生成动态版本的二维非定常流场的这种表示。我们的算法顺利动画箭头沿着流动，同时控制其密度在域随时间的推移。几种策略已经结合起来，以降低不可避免的弹出文物时出现的箭头出现和消失，并实现视觉上令人愉快的动画。在低速区域中干扰箭头旋转也可以通过将箭头字形连续变形为半透明圆盘来处理。为了证实我们的方法，我们提供了合成和真实的速度场数据集的结果。
Flow fields are often represented by a set of static arrows to illustrate scientific vulgarization, documentary film, meteorology, etc. This simple schematic representation lets an observer intuitively interpret the main properties of a flow: its orientation and velocity magnitude. We propose to generate dynamic versions of such representations for 2D unsteady flow fields. Our algorithm smoothly animates arrows along the flow while controlling their density in the domain over time. Several strategies have been combined to lower the unavoidable popping artifacts arising when arrows appear and disappear and to achieve visually pleasing animations. Disturbing arrow rotations in low velocity regions are also handled by continuously morphing arrow glyphs to semi-transparent discs. To substantiate our method, we provide results for synthetic and real velocity field datasets.