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Guarding Exterior Region of a Simple Polygon

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WALCOM: Algorithms and Computation (WALCOM 2008)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 4921))

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Abstract

In this paper, our objective is to locate a position of a guard on the convex hull of a simple polygon P, such that, the farthest point on the boundary of the polygon from the location of the guard, avoiding the interior region of the polygon P, is minimum among all possible locations of the guard on the convex hull. In other words, we try to identify the possible position of guard on the boundary of convex hull such that the maximum distance required to reach a trouble point on the boundary of polygon P avoiding the interior region of P is minimized. The time complexity of our algorithm is O(n) where n is the number of vertices of P.

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References

  1. Agarwal, P.K., Aggarwal, A., Aronov, B., Kosaraju, S.R., Schieber, B., Suri, S.: Computing external farthest neighbors for a simple polygon. Discrete Applied Mathematics 31, 97–111 (1991)

    Article  MATH  MathSciNet  Google Scholar 

  2. Aronov, B., Fortune, S., Wilfong, G.: The furthest-site geodesic voronoi diagram. Discrete Computational Geometry 9, 217–255 (1993)

    Article  MATH  MathSciNet  Google Scholar 

  3. Chvatal, V.: A combinatorial theorem in plane geometry. Journal of combinatorial Theory SER B 18, 39–41 (1975)

    Article  MATH  MathSciNet  Google Scholar 

  4. Choi, A.K.O., Yiu, S.M.: Edge guards for the fortress problem. Journal of Geometry 72, 47–64 (2001)

    Article  MATH  MathSciNet  Google Scholar 

  5. Guibas, L., Hershberger, J., Leven, D., Sharir, M., Tarjan, R.E.: Linear Time Algorithms for Visibility and Shortest Path Problems Inside Simple Polygons. Algorithmica 2, 209–233 (1987)

    Article  MATH  MathSciNet  Google Scholar 

  6. McCallum, D., Avis, D.: A linear Algorithm for Finding the Convex Hull of a Simple Polygon. Information Processing Letters 9, 201–206 (1979)

    Article  MATH  MathSciNet  Google Scholar 

  7. O’Rourke, J.: Art Gallery Theorems and Algorithms. Oxford University Press, Oxford (1987)

    MATH  Google Scholar 

  8. Peshkin, M.A., Sanderson, A.C.: Reachable Grasps on a Polygon: The Convex Rope Algorithm. IEEE Journal of Robotics and Automation RA-2, 53–58 (1986)

    Google Scholar 

  9. Sack, J.R., Urrutia, J.: Handbook of computational geometry. Elsevier Science, B. V., Netherlands (2000)

    MATH  Google Scholar 

  10. Samuel, D., Toussaint, G.T.: Computing the external geodesic diameter of a simple polygon. Computing 44, 1–19 (1990)

    Article  MATH  MathSciNet  Google Scholar 

  11. Shermer, T.: Recent results in Art Galleries. Proceedings of the IEEE, 1384–1399 (1992)

    Google Scholar 

  12. Suri, S.: Computing Geodesic Furthest Neighbors in Simple Polygons. Journal of Computer and System Sciences 39, 220–235 (1989)

    Article  MATH  MathSciNet  Google Scholar 

  13. Yiu, S.M.: A generalized fortress problem using k-consecutive vertex guards. Journal of Geometry 39, 220–235 (1989)

    Google Scholar 

  14. Zylinski, P.: Cooperative guards in the fortress problem. Balkan Journal of Geometry and Its Applications 72, 188–198 (2004)

    MathSciNet  Google Scholar 

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Shin-ichi Nakano Md. Saidur Rahman

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© 2008 Springer-Verlag Berlin Heidelberg

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Karmakar, A., Roy, S., Das, S. (2008). Guarding Exterior Region of a Simple Polygon. In: Nakano, Si., Rahman, M.S. (eds) WALCOM: Algorithms and Computation. WALCOM 2008. Lecture Notes in Computer Science, vol 4921. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77891-2_10

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  • DOI: https://doi.org/10.1007/978-3-540-77891-2_10

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-77890-5

  • Online ISBN: 978-3-540-77891-2

  • eBook Packages: Computer ScienceComputer Science (R0)

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