Trajectory Density Projection for Vector Field Visualization
Trajectory Density Projection for Vector Field Visualization
复制标题
矢量场可视化的轨迹密度投影
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
H. Hege
中科院分区：
文献类型：
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作者：
A. Kuhn;N. Lindow;Tobias Günther;Alexander Wiebel;H. Theisel;H. Hege
轨迹可视化是捕捉矢量场内在特征的重要工具。然而，由于曲线的数量相互遮挡，可能覆盖了相关的特征，这类几何可视化经常遭受视觉混乱的困扰。试图避免这种影响的尝试通常需要复杂的预处理/后处理，以播种、聚类或过滤相关的行。在这项工作中，我们提出了一种简单而有效的技术来渲染大量的轨迹，它突出了它们的投影密度的特征。该技术利用了现代图形硬件的能力，避免了显式的特征提取。我们提出了有效的计算方案，提供了合理的参数设置建议，并讨论了重要的实现方面。此外，我们还在几个应用程序场景中演示了我们的方法的有效性。类别和主题描述符（根据ACM CCS）：
Trajectory visualization is an important tool to capture intrinsic characteristics of vector fields. However, often this class of geometric visualization suffers from visual clutter due to the number of curves that occlude each other and may cover relevant features. Attempts trying to avoid this effect often require complex pre/post-processing for seeding, clustering, or filtering of relevant lines. In this work we present a simple, yet effective technique for rendering large amounts of trajectories, which highlights features of their projected density. The technique exploits capabilities of modern graphics hardware and avoids explicit feature extraction. We propose efficient schemes for its computation, provide suggestions for sensible parameter setups, and discuss important implementation aspects. In addition, we demonstrate the effectiveness of our approach in several application scenarios. Categories and Subject Descriptors (according to ACM CCS) :