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首页> 外文期刊>Visualization and Computer Graphics, IEEE Transactions on >Whisper, Don't Scream: Grids and Transparency
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Whisper, Don't Scream: Grids and Transparency

机译：耳语，不要尖叫：网格和透明度

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摘要

Visual elements such as grids, labels, and contour lines act as reference structures that support the primary information being presented. Such structures need to be usefully visible, but not so obtrusive that they clutter the presentation. Visual designers know how to carefully manage transparency and layering in an image to balance these elements. We want the presentation of these structures in complex, dynamic, computer-generated visualizations to reflect the same subtlety and comfort of good design. Our goal is to determine the physical, perceptual, and cognitive characteristics of such structures in a way that enables automatic presentation. Our approach to this problem does not try to characterize "idealȁD; or "best,ȁD; but instead seeks boundary conditions that define a range of visible yet subtle legibility. All presentations that are clearly bad lie outside of this range, and can easily be avoided. In this paper, we report three experiments investigating the effects of grid color and spacing on these boundary conditions, defined by manipulating the transparency (alpha) of thin rectangular grids over scatter plots. Our results show that while there is some variation due to user preference and image properties, bounding alpha allows us to reliably predict a range of usable yet unobtrusive grids over a wide variety of conditions.
机译：可视元素（例如网格，标签和轮廓线）充当参考结构，可支持显示的主要信息。这样的结构需要有效地可见，但又不要太引人注目，以免使显示混乱。视觉设计师知道如何仔细管理图像的透明度和分层以平衡这些元素。我们希望以复杂的，动态的，计算机生成的可视化形式来呈现这些结构，以反映出良好设计所具有的细微之处和舒适性。我们的目标是以能够自动呈现的方式确定此类结构的物理，感知和认知特征。我们对这个问题的处理方法并不试图刻画“理想ideD”或“最佳ȁD”的特征。而是寻求边界条件，这些条件定义了一系列可见但细微的可读性。所有明显不好的演示文稿都超出此范围，可以轻松避免。在本文中，我们报告了三个实验，这些实验研究了网格颜色和间距对这些边界条件的影响，这些边界条件是通过操纵散点图上的薄矩形网格的透明度（alpha）来定义的。我们的结果表明，尽管由于用户的喜好和图像属性而有所不同，但边界Alpha使我们能够在各种条件下可靠地预测可用的但不干扰的网格范围。

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