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：我们通过分析先前控制实验中记录的眼动数据，研究在扁平环面拓扑中边界环绕的节点-连线图的阅读策略。先前工作表明，环面绘制比传统节点-连线表示法在减少杂乱方面更具灵活性，但会阻碍链接与路径探索任务，而边界周围重复的瓦片有助于理解。然而，用户在不同环绕设置下采用何种策略仍不明确。这对于未来设计更有效的网络应用环绕可视化以及可从环绕中受益的循环数据具有重要意义。我们对方位数据进行视觉探索性数据分析，并根据识别出的模式进行统计检验。结果表明，在非重复布局中，注视行为具有可区分特征，包括更多视觉扫视以及兴趣区之间的转换。全上下文比部分上下文拥有更成功的视觉搜索，但注视分配表明该布局可能在空间效率上仍有提升空间。