Title
Skew Voronoi Diagrams
Abstract
On a tilted plane T in three-space, skew distances are defined as the Euclidean distance plus a multiple of the signed difference in height. Skew distances may model realistic environments more closely than the Euclidean distance. Voronoi diagrams and related problems under this kind of distances are investigated. A relationship to convex distance functions and to Euclidean Voronoi diagrams for planar circles is shown, and is exploited for a geometric analysis and a plane-sweep construction of Voronoi diagrams on T. An output-sensitive algorithm running in time O(n log h) is developed, where n and h are the numbers of sites and non-empty Voronoi regions, respectively. The all nearest neighbors problem for skew distances, which has certain features different from its Euclidean counterpart, is solved in O(n log n) time.
Year
DOI
Venue
1999
10.1142/S0218195999000169
INTERNATIONAL JOURNAL OF COMPUTATIONAL GEOMETRY & APPLICATIONS
Keywords
DocType
Volume
direction-dependent distance, Voronoi diagram, additive weights, output-sensitive algorithm
Journal
9
Issue
ISSN
Citations 
3
0218-1959
0
PageRank 
References 
Authors
0.34
8
5
Name
Order
Citations
PageRank
Oswin Aichholzer185296.04
Franz Aurenhammer22060202.90
Danny Z. Chen31713165.02
D. T. Lee424181083.30
Evanthia Papadopoulou511018.37