Robust and Fast Algorithm for a Circle Set Voronoi Diagram in a Plane

  • Authors:
  • Deok-Soo Kim;Donguk Kim;Kokichi Sugihara;Joonghyun Ryu

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ICCS '01 Proceedings of the International Conference on Computational Sciences-Part I
  • Year:
  • 2001

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Abstract

Robust and fast computation of the exact Voronoi diagram of circle set is difficult. Presented in this paper is an edge-flipping algorithm that computes a circle set Voronoi diagram using a point set Voronoi diagram, where the points are the centers of circles. Hence, the algorithm is as robust as its counterpart of point set. Even though the theoretical worst-case time complexity is quadratic, the actual performance shows a strong linear time behavior for various test cases. Furthermore, the computation time is comparable to the algorithm of point set Voronoi diagram itself.