Area-preserving approximations of polygonal paths

  • Authors:
  • Prosenjit Bose;Sergio Cabello;Otfried Cheong;Joachim Gudmundsson;Marc van Kreveld;Bettina Speckmann

  • Affiliations:
  • School of Computer Science, Carleton University, Ottawa, Canada;Department of Mathematics, Institute for Mathematics, Physics and Mechanics, Ljubljana, Slovenia;Division of Computer Science, KAIST, Daejeon, Korea;NICTA, Sydney, Australia;Institute for Information and Computing Sciences, Utrecht University, Utrecht, The Netherlands;Department of Mathematics and Computer Science, TU Eindhoven, Eindhoven, The Netherlands

  • Venue:
  • Journal of Discrete Algorithms
  • Year:
  • 2006

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Abstract

Let P be an x-monotone polygonal path in the plane. For a path Q that approximates P let W"A(Q) be the area above P and below Q, and let W"B(Q) be the area above Q and below P. Given P and an integer k, we show how to compute a path Q with at most k edges that minimizes W"A(Q)+W"B(Q). Given P and a cost C, we show how to find a path Q with the smallest possible number of edges such that W"A(Q)+W"B(Q)=