Voronoi Diagrams: Difference between revisions

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== Description ==  
== Description ==  


Given a set of n points in 2-dimensional space, compute the Voronoi diagram with the n points as seeds.
Given a set of $n$ points in 2-dimensional space, compute the Voronoi diagram with the $n$ points as seeds.


== Parameters ==  
== Parameters ==  


n: number of points
$n$: number of points


== Table of Algorithms ==  
== Table of Algorithms ==  
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| [[Fortune's algorithm (Voronoi Diagrams Voronoi Diagrams)|Fortune's algorithm]] || 1986 || $O(nlogn)$ || $O(n)$ auxiliary || Exact || Deterministic || [http://www.wias-berlin.de/people/si/course/files/Fortune87-SweepLine-Voronoi.pdf Time] & [https://www.wias-berlin.de/people/si/course/files/Fortune87-SweepLine-Voronoi.pdf Space]
| [[Fortune's algorithm (Voronoi Diagrams Voronoi Diagrams)|Fortune's algorithm]] || 1986 || $O(n \log n)$ || $O(n)$ || Exact || Deterministic || [http://www.wias-berlin.de/people/si/course/files/Fortune87-SweepLine-Voronoi.pdf Time] & [https://www.wias-berlin.de/people/si/course/files/Fortune87-SweepLine-Voronoi.pdf Space]
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| [[Linde–Buzo–Gray algorithm ( Voronoi Diagrams)|Linde–Buzo–Gray algorithm]] || 1980 || $O(nlogn)$ ||  || Exact || Deterministic || [https://ieeexplore.ieee.org/document/1094577/ Time]
| [[Linde–Buzo–Gray algorithm ( Voronoi Diagrams)|Linde–Buzo–Gray algorithm]] || 1980 || $O(n \log n)$ ||  || Exact || Deterministic || [https://ieeexplore.ieee.org/document/1094577/ Time]
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| [[Bowyer–Watson algorithm (Voronoi Diagrams Voronoi Diagrams)|Bowyer–Watson algorithm]] || 1981 || $O(nlogn)$ || $O(n)$ auxiliary || Exact || Deterministic || [https://academic.oup.com/comjnl/article/24/2/167/338200 Time]
| [[Bowyer–Watson algorithm (Voronoi Diagrams Voronoi Diagrams)|Bowyer–Watson algorithm]] || 1981 || $O(n \log n)$ || $O(n)$ || Exact || Deterministic || [https://academic.oup.com/comjnl/article/24/2/167/338200 Time]
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[[File:Voronoi Diagrams - Time.png|1000px]]
[[File:Voronoi Diagrams - Time.png|1000px]]
== Space Complexity Graph ==
[[File:Voronoi Diagrams - Space.png|1000px]]
== Time-Space Tradeoff ==
[[File:Voronoi Diagrams - Pareto Frontier.png|1000px]]

Latest revision as of 10:08, 28 April 2023

Description

Given a set of $n$ points in 2-dimensional space, compute the Voronoi diagram with the $n$ points as seeds.

Parameters

$n$: number of points

Table of Algorithms

Name Year Time Space Approximation Factor Model Reference
Fortune's algorithm 1986 $O(n \log n)$ $O(n)$ Exact Deterministic Time & Space
Linde–Buzo–Gray algorithm 1980 $O(n \log n)$ Exact Deterministic Time
Bowyer–Watson algorithm 1981 $O(n \log n)$ $O(n)$ Exact Deterministic Time

Time Complexity Graph

Voronoi Diagrams - Time.png