Shortest paths and voronoi diagrams with transportation networks under general distances

  • Authors:
  • Sang Won Bae;Kyung-Yong Chwa

  • Affiliations:
  • Division of Computer Science, Department of EECS, Korea Advanced Institute of Science and Technology, Daejeon, Korea;Division of Computer Science, Department of EECS, Korea Advanced Institute of Science and Technology, Daejeon, Korea

  • Venue:
  • ISAAC'05 Proceedings of the 16th international conference on Algorithms and Computation
  • Year:
  • 2005

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Abstract

Transportation networks model facilities for fast movement on the plane. A transportation network, together with its underlying distance, induces a new distance. Previously, only the Euclidean and the L1 distances have been considered as such underlying distances. However, this paper first considers distances induced by general distances and transportation networks, and present a unifying approach to compute Voronoi diagrams under such a general setting. With this approach, we show that an algorithm for convex distances can be easily obtained.