mirror of https://github.com/CGAL/cgal
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bug.cpp
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/*
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There must be a bug to fix in the sweepline code if this package.
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The following data set hangs with the vertices in this particular order.
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As the first thing the random_polygon_2 functions does
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is a random_shuffle, we have put it in an #ifndef for this testcase
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*/
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#define CGAL_DONT_SHUFFLE_IN_RANDOM_POLYGON_2 1
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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
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#include <CGAL/Polygon_2.h>
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#include <CGAL/random_polygon_2.h>
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#include <CGAL/algorithm.h>
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#include <fstream>
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#include <list>
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typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
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typedef K::Point_2 Point_2;
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typedef std::list<Point_2> Container;
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typedef CGAL::Polygon_2<K, Container> Polygon_2;
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int main( )
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{
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Polygon_2 polygon;
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std::list<Point_2> point_set;
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std::string input = "-5 -7 46 59 55 -50 27 -93 46 -62 55 17 -71 0 -27 -41 -86 -73 7 -85 -71 93 41 -47 78 0 -13 52 -73 -25 -17 -11 56 -61 71 -69 -44 59 -9 5 -64 -96 -66 -45 39 54 -93 -22 5 -21 -32 32 -26 77 -99 -2 62 -73 -35 7 -88 60 39 56 2 3 -5 -50 3 68 82 16 -64 -38 -2 -16";
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std::stringstream input_stream(input);
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std::istream_iterator< Point_2 > in(input_stream);
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CGAL::copy_n_unique(in, 38,
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std::back_inserter(point_set));
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std::ostream_iterator< Point_2 > out( std::cout, "\n " );
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CGAL::random_polygon_2(point_set.size(), std::back_inserter(polygon),
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point_set.begin());
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std::cout << "done" << std::endl;
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return 0;
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}
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