No-bend orthogonal drawings of series-parallel graphs

  • Authors:
  • Md. Saidur Rahman;Noritsugu Egi;Takao Nishizeki

  • Affiliations:
  • Department of Computer Science and Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh;Graduate School of Information Sciences, Tohoku University, Sendai, Japan;Graduate School of Information Sciences, Tohoku University, Sendai, Japan

  • Venue:
  • GD'05 Proceedings of the 13th international conference on Graph Drawing
  • Year:
  • 2005

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Abstract

In a no-bend orthogonal drawing of a plane graph, each vertex is drawn as a point and each edge is drawn as a single horizontal or vertical line segment. A planar graph is said to have a no-bend orthogonal drawing if at least one of its plane embeddings has a no-bend orthogonal drawing. Every series-parallel graph is planar. In this paper we give a linear-time algorithm to examine whether a series-parallel graph G of the maximum degree three has a no-bend orthogonal drawing and to find one if G has.