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arXiv · 1812.04263

Bundled Crossings Revisited

Steven Chaplick·Thomas C. van Dijk·Myroslav Kryven·Ji-won Park·Alexander Ravsky·Alexander Wolff
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Abstract

An effective way to reduce clutter in a graph drawing that has (many) crossings is to group edges that travel in parallel into \emph{bundles}. Each edge can participate in many such bundles. Any crossing in this bundled graph occurs between two bundles, i.e., as a \emph{bundled crossing}. We consider the problem of bundled crossing minimization: A graph is given and the goal is to find a bundled drawing with at most $k$ bundled crossings. We show that the problem is NP-hard when we require a simple drawing. Our main result is an FPT algorithm (in $k$) when we require a simple circular layout. These results make use of the connection between bundled crossings and graph genus.

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Steven Chaplick, Thomas C. van Dijk, Myroslav Kryven, Ji-won Park, Alexander Ravsky, Alexander Wolff. 2018-12-11. Bundled Crossings Revisited. https://doi.org/10.7155/jgaa.00535

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