Kinetic collision detection between two simple polygons

  • Authors:
  • Julien Basch;Jeff Erickson;Leonidas J. Guibas;John Hershberger;Li Zhang

  • Affiliations:
  • SiRF Technology Inc., 395 Oyster Point Blvd., South San Francisco, CA;Department of Computer Science, University of Illinois, Urbana, IL;Computer Science Department, Stanford University, Stanford, CA;Mentor Graphics Corp., 8005 SW Boeckman Road, Wilsonville, OR;HP Laboratories, 1501 Page Mill Road, Palo Alto, CA

  • Venue:
  • Computational Geometry: Theory and Applications
  • Year:
  • 2004

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Abstract

We design a kinetic data structure for detecting collisions between two simple polygons in motion. In order to do so, we create a planar subdivision of the free space between the two polygons, called the external relative geodesic triangulation, which certifies their disjointness. We show how this subdivision can be maintained as a kinetic data structure when the polygons are moving, and analyze its performance in the kinetic setting.