Title
Simultaneous Orthogonal Planarity
Abstract
We introduce and study the OrthoSEFE-k problem: Given k planar graphs each with maximum degree 4 and the same vertex set, do they admit an OrthoSEFE, that is, is there an assignment of the vertices to grid points and of the edges to paths on the grid such that the same edges in distinct graphs are assigned the same path and such that the assignment induces a planar orthogonal drawing of each of the k graphs? We show that the problem is NP-complete for k >= 3 even if the shared graph is a Hamiltonian cycle and has sunflower intersection and for k >= 2 even if the shared graph consists of a cycle and of isolated vertices. Whereas the problem is polynomial-time solvable for k = 2 when the union graph has maximum degree five and the shared graph is biconnected. Further, when the shared graph is biconnected and has sunflower intersection, we show that every positive instance has an OrthoSEFE with at most three bends per edge.
Year
DOI
Venue
2016
10.1007/978-3-319-50106-2_41
GRAPH DRAWING AND NETWORK VISUALIZATION (GD 2016)
DocType
Volume
ISSN
Conference
9801
0302-9743
Citations 
PageRank 
References 
0
0.34
14
Authors
10
Name
Order
Citations
PageRank
Patrizio Angelini115825.43
steven chaplick27616.91
Sabine Cornelsen314419.85
Giordano Da Lozzo48723.65
Giuseppe Di Battista52298361.48
Peter Eades696269.36
Philipp Kindermann76311.87
Jan Kratochvíl81751151.84
Fabian Lipp9144.44
Ignaz Rutter1031544.45