CGAL 6.1.1 - 2D Arrangements

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Arrangement_on_surface_2/vertical_ray_shooting.cpp
// Answering vertical ray-shooting queries.
#include <CGAL/Arr_walk_along_line_point_location.h>
#include <CGAL/Arr_trapezoid_ric_point_location.h>
#include "arr_inexact_construction_segments.h"
#include "point_location_utils.h"
using Walk_pl = CGAL::Arr_walk_along_line_point_location<Arrangement>;
using Trap_pl = CGAL::Arr_trapezoid_ric_point_location<Arrangement>;
int main() {
// Construct the arrangement.
Arrangement arr;
construct_segments_arr(arr);
// Perform some vertical ray-shooting queries using the walk strategy.
Walk_pl walk_pl(arr);
shoot_vertical_ray(walk_pl, Point(1, 4));
shoot_vertical_ray(walk_pl, Point(4, 3));
shoot_vertical_ray(walk_pl, Point(6, 3));
// Attach the trapezoid-RIC object to the arrangement and perform queries.
Trap_pl trap_pl(arr);
shoot_vertical_ray(trap_pl, Point(3, 2));
shoot_vertical_ray(trap_pl, Point(5, 2));
shoot_vertical_ray(trap_pl, Point(1, 0));
return 0;
}
CGAL::Arr_trapezoid_ric_point_location
Definition: Arr_trapezoid_ric_point_location.h:34
CGAL::Arr_walk_along_line_point_location
Definition: Arr_walk_along_line_point_location.h:29