Title
Maintaining Visibility Information Of Planar Point Sets With A Moving Viewpoint
Abstract
Given a set of n points in the plane, we consider the problem of computing the circular ordering of the points about a viewpoint q and efficiently maintaining this ordering information as q moves. In linear space, and after O(n log n) preprocessing time, our solution maintains the view at a cost of O(log n) amortized time (resp. O(log(2) n) worst case time) for each change. Our algorithm can also be used to maintain the set of points sorted according to their distance to q.
Year
DOI
Venue
2007
10.1142/S0218195907002343
INTERNATIONAL JOURNAL OF COMPUTATIONAL GEOMETRY & APPLICATIONS
Keywords
DocType
Volume
visibility, dynamic data structures
Journal
17
Issue
ISSN
Citations 
4
0218-1959
2
PageRank 
References 
Authors
0.41
5
6
Name
Order
Citations
PageRank
Olivier Devillers178870.63
Vida Dujmovic241643.34
Hazel Everett329629.68
Samuel Hornus416612.52
Sue Whitesides51449197.63
Stephen K. Wismath638732.61