Shortest Paths Among Obstacles in the Plane Revisited

  title={Shortest Paths Among Obstacles in the Plane Revisited},
  author={Haitao Wang},
  • Haitao Wang
  • Published 18 October 2020
  • Computer Science
  • ArXiv
Given a set of pairwise disjoint polygonal obstacles in the plane, finding an obstacle-avoiding Euclidean shortest path between two points is a classical problem in computational geometry and has been studied extensively. The previous best algorithm was given by Hershberger and Suri [FOCS 1993, SIAM J. Comput. 1999] and the algorithm runs in $O(n\log n)$ time and $O(n\log n)$ space, where $n$ is the total number of vertices of all obstacles. The algorithm is time-optimal because $\Omega(n\log n… 

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