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Visualization Symposium, IEEE Pacific (2011)
Hong Kong, China
Mar. 1, 2011 to Mar. 4, 2011
ISBN: 978-1-61284-935-5
pp: 195-202
Danny Holten , Eindhoven University of Technology, the Netherlands
Petra Isenberg , INRIA, France
Jarke J. van Wijk , Eindhoven University of Technology, the Netherlands
Jean-Daniel Fekete , INRIA, France
We present the results of a study comparing five directed-edge representations for use in 2D, screen-based node-link diagrams. The goal of this work is to extend the understanding of tradeoffs and best practices for the representation of edges in directed graphs and to help practitioners choose among different options. Our work applies to graphs in which directed links are depicted using lines connecting the nodes. We tested five different edge representations chosen carefully based on user feedback to thoroughly cover the directed-edge design space. We also investigated how the use of pattern compression affects performance and subjective user preference. The article presents detailed results regarding the significant performance and preference differences between directed-edge representations and provides practical recommendations on their use.

P. Isenberg, D. Holten, J. Fekete and J. J. van Wijk, "An extended evaluation of the readability of tapered, animated, and textured directed-edge representations in node-link graphs," 2011 IEEE Pacific Visualization Symposium (PacificVis)(PACIFICVIS), Hong Kong, 2011, pp. 195-202.
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