Improved Incremental Randomized Delaunay Triangulation. - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Reports Year : 1997

Improved Incremental Randomized Delaunay Triangulation.

Olivier Devillers


We propose a new data structure to compute the Delaunay triangulation of a set of points in the plane. It combines good worst case complexity, fast behavior on real data, and small memory occupation. The location structure is organized into several levels. The lowest level just consists of the triangulation, then each level contains the triangulation of a small sample of the levels below. Point location is done by marching in a triangulation to determine the nearest neighbor of the query at that level, then the march restarts from that neighbor at the level below. Using a small sample (3 %) allows a small memory occupation; the march and the use of the nearest neighbor to change levels quickly locate the query.
Fichier principal
Vignette du fichier
RR-3298.pdf (340.82 Ko) Télécharger le fichier

Dates and versions

inria-00073390 , version 1 (24-05-2006)


  • HAL Id : inria-00073390 , version 1


Olivier Devillers. Improved Incremental Randomized Delaunay Triangulation.. RR-3298, INRIA. 1997. ⟨inria-00073390⟩
89 View
556 Download


Gmail Facebook Twitter LinkedIn More