  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.
