Title
An empirical comparison of techniques for updating Delaunay triangulations
Abstract
The computation of Delaunay triangulations from static point sets has been extensively studied in computational geometry. When the points move with known trajectories, kinetic data structures can be used to maintain the triangulation. However, there has been little work so far on how to maintain the triangulation when the points move without explicit motion plans, as in the case of a physical simulation. In this paper we examine how to update Delaunay triangulations after small displacements of the defining points, as might be provided by a physics-based integrator. We have implemented a variety of update algorithms, many new, toward this purpose. We ran these algorithms on a corpus of data sets to provide running time comparisons and determined that updating Delaunay can be significantly faster than recomputing.
Year
DOI
Venue
2004
10.1145/997817.997846
Symposium on Computational Geometry 2013
Keywords
Field
DocType
delaunay triangulation update motion
Chew's second algorithm,Combinatorics,Minimum-weight triangulation,Bowyer–Watson algorithm,Computer science,Theoretical computer science,Triangulation (social science),Constrained Delaunay triangulation,Delaunay triangulation,Ruppert's algorithm,Pitteway triangulation
Conference
ISBN
Citations 
PageRank 
1-58113-885-7
21
0.97
References 
Authors
27
2
Name
Order
Citations
PageRank
Leonidas J. Guibas1130841262.73
Daniel Russel2382.17