Hardness results on Voronoi, Laguerre and Apollonius diagrams
Résumé
We show that converting Apollonius and Laguerre diagrams from an already built Delaunay triangulation of a set of n points in 2D requires at least Ω(n log n) computation time. We also show that converting an Apollonius diagram of a set of n weighted points in 2D from a Laguerre diagram and vice-versa requires at least Ω(n log n) computation time as well. Furthermore , we present a very simple randomized incremental construction algorithm that takes expected O(n log n) computation time to build an Apollonius diagram of non-overlapping circles in 2D.
Domaines
Géométrie algorithmique [cs.CG]
Fichier principal
CCCG_2019_paper_40.pdf (342.7 Ko)
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vignette.jpg (27.03 Ko)
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Origine | Fichiers produits par l'(les) auteur(s) |
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Format | Figure, Image |
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