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Improved algorithms for the point-set embeddability problem for plane 3-trees. (English) Zbl 1353.68215

Fu, Bin (ed.) et al., Computing and combinatorics. 17th annual international conference, COCOON 2011, Dallas, TX, USA, August 14–16, 2011. Proceedings. Berlin: Springer (ISBN 978-3-642-22684-7/pbk). Lecture Notes in Computer Science 6842, 204-212 (2011).
Summary: In the point set embeddability problem, we are given a plane graph \(G\) with \(n\) vertices and a point set \(S\) with \(n\) points. Now the goal is to answer the question whether there exists a straight-line drawing of \(G\) such that each vertex is represented as a distinct point of \(S\) as well as to provide an embedding if one does exist. Recently, in [R. I. Nishat et al., Lect. Notes Comput. Sci. 6502, 317–328 (2011; Zbl 1314.68236)], a complete characterization for this problem on a special class of graphs known as the plane 3-trees was presented along with an efficient algorithm to solve the problem. In this paper, we use the same characterization to devise an improved algorithm for the same problem. Much of the efficiency we achieve comes from clever uses of the triangular range search technique.
For the entire collection see [Zbl 1219.68016].

MSC:

68R10 Graph theory (including graph drawing) in computer science
05C10 Planar graphs; geometric and topological aspects of graph theory
05C85 Graph algorithms (graph-theoretic aspects)

Citations:

Zbl 1314.68236