Discrete & Computational Geometry

, Volume 13, Issue 1, pp 77–109 | Cite as

An efficient algorithm for guard placement in polygons with holes

  • I. Bjorling-Sachs
  • D. L. Souvaine


In this paper we consider the problem of placing guards to supervise an art gallery with holes. No gallery withn vertices andh holes requires more than [(n+h)/3] guards. For some galleries this number of guards is necessary. We present an algorithm which places the [(n+h)/3] guards inO(n2) time.


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Copyright information

© Springer-Verlag New York Inc. 1995

Authors and Affiliations

  • I. Bjorling-Sachs
    • 1
  • D. L. Souvaine
    • 2
  1. 1.Department of Computer ScienceLafayette CollegeEastonUSA
  2. 2.Department of Computer ScienceRutgers UniversityNew BrunswickUSA

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