Representing Flow Patterns by Using Streamlines with Glyphs
Representing Flow Patterns by Using Streamlines with Glyphs
复制标题
使用带字形的流线表示流动模式
DOI：
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发表时间：
2013
影响因子：
5.2
通讯作者：
C. Ware
中科院分区：
文献类型：
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作者：
David H. F. Pilar;C. Ware
大多数专业的风可视化使用网格模式中称为风刺的字形来显示风速和风向。对流动可视化的研究表明，流线更好地代表了流动模式，但这些方法缺乏一个关键属性-与风刺不同，它们不能准确地传达风速。为了改善对风型的感知，并至少与风刺的数量质量相当，我们设计了两种不同的风钩，并设计了一种新的数量字形。我们所有的新设计都沿着等间距的流线设计空间字形元素。为了评估这些设计，我们使用了一个北美中尺度预报模式。我们测试了受试者使用三种新设计的两种不同密度以及经典的风刺来确定方向和速度的能力。第二个实验评估了每个设计代表风型的有效性。结果表明，新设计优于经典倒钩，但也表明经典倒钩可以重新设计并进行实质性改进。我们认为，具有完整字形的流型可能在流动可视化中有广泛的应用。
Most professional wind visualizations show wind speed and direction using a glyph called a wind barb in a grid pattern. Research into flow visualization has suggested that streamlines better represent flow patterns but these methods lack a key property - unlike the wind barb, they do not accurately convey the wind speed. With the goal of improving the perception of wind patterns, and at least equaling the quantitative quality of wind barbs, we designed two variations on the wind barb and designed a new quantitative glyph. All of our new designs space glyph elements along equally spaced streamlines. To evaluate these designs, we used a North American mesoscale forecast model. We tested the ability of subjects to determine direction and speed using two different densities each of three new designs as well as the classic wind barb. A second experiment evaluated how effectively each of the designs represented wind patterns. The results showed that the new design is superior to the classic, but they also showed that the classic barb can be redesigned and substantially improved. We suggest that flow patterns with integrated glyphs may have widespread application in flow visualization.