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Information Processing Letters
Volume 92, Issue 6, 31 December 2004, Pages 287-291
 
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doi:10.1016/j.ipl.2004.09.005    How to Cite or Link Using DOI (Opens New Window)
Copyright © 2004 Elsevier B.V. All rights reserved.

Kinetic collision detection with fast flight plan changes

John HershbergerE-mail The Corresponding Author

Mentor Graphics Corp., 8005 SW Boeckman Road, Wilsonville, OR 97070, USA

Received 9 February 2004; 
revised 7 September 2004. 
Communicated by S.E. Hambrusch. 
Available online 13 October 2004.

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Abstract

We show how to augment a kinetic data structure for collision detection between translating polygons with the ability to make fast flight plan changes. This allows us to update the KDS after a moving polygon changes its motion in O(logn) time, instead of the Ω(n) worst-case time needed by previous kinetic data structures. The key to our approach is replacing the KDS priority queue by a dynamic convex hull that represents the certificates of the KDS.

Keywords: Kinetic data structure; Collision detection; Dynamic convex hull; Computational geometry


Information Processing Letters
Volume 92, Issue 6, 31 December 2004, Pages 287-291
 
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