Straight-Line Grid Drawings of 3-Connected 1-Planar Graphs

Alam, Muhammed Jawaherul and Brandenburg, Franz J. and Kobourov, Stephen G. (2013) Straight-Line Grid Drawings of 3-Connected 1-Planar Graphs. In: 21st International Symposium, GD 2013, September 23-25, 2013 , pp. 83-94(Official URL:

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A graph is 1-planar if it can be drawn in the plane such that each edge is crossed at most once. In general, 1-planar graphs do not admit straight-line drawings. We show that every 3-connected 1-planar graph has a straight-line drawing on an integer grid of quadratic size, with the exception of a single edge on the outer face that has one bend. The drawing can be computed in linear time from any given 1-planar embedding of the graph.

Item Type: Conference Paper
Classifications: G Algorithms and Complexity > G.420 Crossings
P Styles > P.720 Straight-line

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