Higher order Delaunay triangulations

  • Authors:
  • Joachim Gudmundsson;Mikael Hammar;Marc van Kreveld

  • Affiliations:
  • Department of Computer Science, Utrecht University, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands;Department of Computer Science, Lund University, Box 118, 221 00 Lund, Sweden;Department of Computer Science, Utrecht University, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands

  • Venue:
  • Computational Geometry: Theory and Applications
  • Year:
  • 2002

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Abstract

For a set P of points in the plane, we introduce a class of triangulations that is an extension of the Delaunay triangulation. Instead of requiring that for each triangle the circle through its vertices contains no points of P inside, we require that at most k points are inside the circle. Since there are many different higher-order Delaunay triangulations for a point set, other useful criteria for triangulations can be incorporated without sacrificing the well-shapedness too much. Applications include realistic terrain modeling and mesh generation.