Farthest-polygon Voronoi diagrams

  • Authors:
  • Otfried Cheong;Hazel Everett;Marc Glisse;Joachim Gudmundsson;Samuel Hornus;Sylvain Lazard;Mira Lee;Hyeon-Suk Na

  • Affiliations:
  • Dept. of Computer Science, KAIST, Daejeon, Republic of Korea;Université Nancy 2, LORIA, Nancy, France;INRIA Saclay - íle-de-France, Orsay, France;National ICT Australia Ltd., Sydney, Australia;INRIA Nancy Grand-Est, LORIA, Nancy, France;INRIA Nancy Grand-Est, LORIA, Nancy, France;Dept. of Computer Science, KAIST, Daejeon, Republic of Korea;School of Computing, Soongsil University, Seoul, Republic of Korea

  • Venue:
  • Computational Geometry: Theory and Applications
  • Year:
  • 2011

Quantified Score

Hi-index 0.00

Visualization

Abstract

Given a family of k disjoint connected polygonal sites in general position and of total complexity n, we consider the farthest-site Voronoi diagram of these sites, where the distance to a site is the distance to a closest point on it. We show that the complexity of this diagram is O(n), and give an O(nlog^3n) time algorithm to compute it. We also prove a number of structural properties of this diagram. In particular, a Voronoi region may consist of k-1 connected components, but if one component is bounded, then it is equal to the entire region.