Straight-Line Grid Drawings of Label-Constrained Outerplanar Graphs with O(n logn) Area (Extended Abstract)

  • Authors:
  • Md. Rezaul Karim;Md. Jawaherul Alam;Md. Saidur Rahman

  • Affiliations:
  • Dept. of Computer Science and Engineering, Bangladesh University of Engineering and Technology(BUET), Dhaka, Bangladesh 1000 and Dept. of Computer Science and Engineering, University of Dhaka, Dha ...;Dept. of Computer Science and Engineering, Bangladesh University of Engineering and Technology(BUET), Dhaka, Bangladesh 1000;Dept. of Computer Science and Engineering, Bangladesh University of Engineering and Technology(BUET), Dhaka, Bangladesh 1000

  • Venue:
  • WALCOM '09 Proceedings of the 3rd International Workshop on Algorithms and Computation
  • Year:
  • 2009

Quantified Score

Hi-index 0.00

Visualization

Abstract

A straight-line grid drawing of a planar graph G is a drawing of G on an integer grid such that each vertex is drawn as a grid point and each edge is drawn as a straight-line segment without edge crossings. Any outerplanar graph of n vertices with the maximum degree d has a straight-line grid drawing with area O (dn logn ). In this paper, we introduce a subclass of outerplanar graphs, which we call label-constrained outerplanar graphs, that admits straight-line grid drawings with O (n logn ) area. We give a linear-time algorithm to find such a drawing. We also give a linear-time algorithm for recognition of label-constrained outerplanar graphs.