The complexity of geodesic Voronoi diagrams on triangulated 2-manifold surfaces

The complexity of geodesic Voronoi diagrams on triangulated 2-manifold surfaces

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Article ID: iaor2013789
Volume: 113
Issue: 4
Start Page Number: 132
End Page Number: 136
Publication Date: Feb 2013
Journal: Information Processing Letters
Authors: ,
Keywords: graphs, heuristics
Abstract:

We study the combinatorial complexity of Voronoi diagram of point sites on a general triangulated 2‐manifold surface, based on the geodesic metric. Given a triangulated 2‐manifold T of n faces and a set of m point sites S = { s 1 , s 2 , , s m } T equ1, we prove that the complexity of Voronoi diagram V T ( S ) equ2 of S on T is O ( m n ) equ3 if the genus of T is zero. For a genus‐g manifold T in which the samples in S are dense enough and the resulting Voronoi diagram satisfies the closed ball property, we prove that the complexity of Voronoi diagram V T ( S ) equ4 is O ( ( m + g ) n ) equ5.

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