A user study on curved edges in graph visualisation

Authors:
Kai Xu;Chris Rooney;Peter Passmore;Dong-Han Ham
Affiliations:
Middlesex University, UK;Middlesex University, UK;Middlesex University, UK;Middlesex University, UK
Venue:
Diagrams'12 Proceedings of the 7th international conference on Diagrammatic Representation and Inference
Year:
2012

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Abstract

It seems that straight lines seldom occur in natural objects and that humans actually prefer curved lines [1]. Thus it may not seem surprising that in aesthetics, curved lines are often to be preferred over straight ones, as found for example in Hogarth's serpentine Line of Beauty [2]. More recently a number of "confluent drawings" [3] and "edge bundling" [4] methods have been proposed to reduce edge clutter by using curved edges. Inspired by the work of Mark Lombardi, there is also theoretical work [5] that uses curved edges to optimises angular resolution, i.e., keep the angles between adjacent edge uniform.