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arXiv · 2006.14182

A linear time algorithm for constructing orthogonal floor plans with minimum number of bends

Pinki·Krishnendra Shekhawat
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Abstract

Let G = (V, E) be a planar triangulated graph (PTG) having every face triangular. A rectilinear dual or an orthogonal floor plan (OFP) of G is obtained by partitioning a rectangle into \mid V \mid rectilinear regions (modules) where two modules are adjacent if and only if there is an edge between the corresponding vertices in G. In this paper, a linear-time algorithm is presented for constructing an OFP for a given G such that the obtained OFP has B_{min} bends, where a bend in a concave corner in an OFP. Further, it has been proved that at least B_{min} bends are required to construct an OFP for G, where \rho - 2 \leq B_{min} \leq \rho + 1 and \rho is the sum of the number of leaves of the containment tree of G and the number of K_4 (4-vertex complete graph) in G.

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Pinki, Krishnendra Shekhawat. 2020-06-25. A linear time algorithm for constructing orthogonal floor plans with minimum number of bends. https://arxiv.org/abs/2006.14182

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