An Elementary Algorithm for ReportingIntersections of Red / Blue Curve Segments

  • Jean-Daniel Boissonnaty, Antoine Vigneronz
  • Published 2002

Abstract

Let Er and Eb be two sets of x-monotone and non-intersecting curve segments, E = Er [ Eb and jEj = n. We give a new sweep-line algorithm that reports the k intersecting pairs of segments of E. Our algorithm uses only three simple predicates that allow to decide if two segments intersect, if a point is left or right to another point, and if a point is above… (More)

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