We investigate reading strategies for node-link diagrams that wrap around the boundaries in a flattened torus topology by examining eye tracking data recorded in a previous controlled study. Prior work showed that torus drawing affords greater flexibility in clutter reduction than traditional node-link representations, but impedes link-and-path exploration tasks, while repeating tiles around boundaries aids comprehension. However, it remains unclear what strategies users apply in different wrapping settings. This is important for design implications for future work on more effective wrapped visualizations for network applications, and cyclic data that could benefit from wrapping. We perform visual-exploratory data analysis of gaze data, and conduct statistical tests derived from the patterns identified. Results show distinguishable gaze behaviors, with more visual glances and transitions between areas of interest in the non-replicated layout. Full-context has more successful visual searches than partial-context, but the gaze allocation indicates that the layout could be more space-efficient.

翻译：我们通过分析先前对照实验中记录的眼动数据，探究在扁平化环面拓扑中边界缠绕节点-连线图的阅读策略。先前研究表明，环面图在减少杂乱方面比传统节点-连线表示具有更大灵活性，但会阻碍链接与路径探索任务，而重复平铺边界区域有助于理解。然而，用户在不同缠绕设置下采用的策略仍不明确。这对未来网络应用中更有效缠绕可视化及可从缠绕中受益的循环数据设计具有重要启示。我们对注视数据进行视觉探索性分析，并根据所识别模式进行统计检验。结果显示可区分的注视行为：在非复制布局中，视觉扫视与兴趣区之间的转换更为频繁。全上下文比部分上下文具有更多成功视觉搜索，但注视分配表明该布局可能在空间效率上仍有优化空间。