OpenOrd: an open-source toolbox for large graph layout

Shawn Martin; W. Michael Brown; Richard Klavans; Kevin W. Boyack

doi:10.1117/12.871402

24 January 2011 OpenOrd: an open-source toolbox for large graph layout

Shawn Martin, W. Michael Brown, Richard Klavans, Kevin W. Boyack

Author Affiliations +

Proceedings Volume 7868, Visualization and Data Analysis 2011; 786806 (2011) https://doi.org/10.1117/12.871402
Event: IS&T/SPIE Electronic Imaging, 2011, San Francisco Airport, California, United States

Abstract

We document an open-source toolbox for drawing large-scale undirected graphs. This toolbox is based on a previously implemented closed-source algorithm known as VxOrd. Our toolbox, which we call OpenOrd, extends the capabilities of VxOrd to large graph layout by incorporating edge-cutting, a multi-level approach, average-link clustering, and a parallel implementation. At each level, vertices are grouped using force-directed layout and average-link clustering. The clustered vertices are then re-drawn and the process is repeated. When a suitable drawing of the coarsened graph is obtained, the algorithm is reversed to obtain a drawing of the original graph. This approach results in layouts of large graphs which incorporate both local and global structure. A detailed description of the algorithm is provided in this paper. Examples using datasets with over 600K nodes are given. Code is available at www.cs.sandia.gov/~smartin.

Citation Download Citation

Shawn Martin, W. Michael Brown, Richard Klavans, and Kevin W. Boyack "OpenOrd: an open-source toolbox for large graph layout", Proc. SPIE 7868, Visualization and Data Analysis 2011, 786806 (24 January 2011); https://doi.org/10.1117/12.871402

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