Strict Confluent Drawing

We define strict confluent drawing, a form of confluent drawing in which the existence of an edge is indicated by the presence of a smooth path through a system of arcs and junctions (without crossings), and in which such a path, if it exists, must be unique. We prove that it is NP-complete to determine whether a given graph has a strict confluent drawing but polynomial to determine whether it has an outerplanar strict confluent drawing with a fixed vertex ordering (a drawing within a disk, with the vertices placed in a given order on the boundary).

keywords: Computational Geometry, Graph Drawing, Graphs Theory

Journal Article (peer-reviewed)

Bettina Speckmann, Danny Holten, David Eppstein, Kevin Verbeek, Maarten Löffler, Martin Nöllenburg
Strict Confluent Drawing
Journal of Computational Geometry
7, 1, 22–46, 2016
http://jocg.org/v7n1p2

Conference Proceedings (peer-reviewed)

Bettina Speckmann, Danny Holten, David Eppstein, Kevin Verbeek, Maarten Löffler, Martin Nöllenburg
Strict Confluent Drawing
Proc. 21st International Symposium on Graph Drawing
LNCS 8242, 352–363, 2013
http://dx.doi.org/10.1007/978-3-319-03841-4_31

Archived Publication (not reviewed)

Bettina Speckmann, Danny Holten, David Eppstein, Kevin Verbeek, Maarten Löffler, Martin Nöllenburg
Strict Confluent Drawing
1308.6824, 2013
http://arXiv.org/abs/1308.6824

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