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We propose a technique that allows straight-line graph drawings to be rendered interactively with adjustable level of detail. The approach consists of a novel combination of edge cumulation with density-based node aggregation and is designed to exploit common graphics hardware for speed. It operates directly on graph data and does not require precomputed hierarchies or meshes. As proof of concept, we present an implementation that scales to graphs with millions of nodes and edges, and discuss several example applications.
rendering (computer graphics), graph data, interactive level-of-detail rendering, straight-line graph drawings, edge cumulation, density-based node aggregation, common graphics hardware, Rendering (computer graphics), Aggregates, Image edge detection, Data visualization, Image color analysis, edge aggregation, Graph visualization, OpenGL

M. Zinsmaier, U. Brandes, O. Deussen and H. Strobelt, "Interactive Level-of-Detail Rendering of Large Graphs," in IEEE Transactions on Visualization & Computer Graphics, vol. 18, no. , pp. 2486-2495, 2012.
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