// Copyright (c) 2000 // Utrecht University (The Netherlands), // ETH Zurich (Switzerland), // INRIA Sophia-Antipolis (France), // Max-Planck-Institute Saarbruecken (Germany), // and Tel-Aviv University (Israel). All rights reserved. // // This file is part of CGAL (www.cgal.org); you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public License as // published by the Free Software Foundation; either version 3 of the License, // or (at your option) any later version. // // Licensees holding a valid commercial license may use this file in // accordance with the commercial license agreement provided with the software. // // This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE // WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. // // $URL$ // $Id$ // // // Author(s) : Geert-Jan Giezeman #ifndef CGAL_RAY_2_BBOX_2_INTERSECTION_H #define CGAL_RAY_2_BBOX_2_INTERSECTION_H #include #include #include #include namespace CGAL { class Bbox_2_Ray_2_pair_impl; class CGAL_EXPORT Bbox_2_Ray_2_pair { public: enum Intersection_results {NO_INTERSECTION, POINT, SEGMENT}; ~Bbox_2_Ray_2_pair() ; Bbox_2_Ray_2_pair() ; Bbox_2_Ray_2_pair(Bbox_2_Ray_2_pair const &o) ; Bbox_2_Ray_2_pair(Bbox_2 const &box, double x, double y, double dx, double dy) ; Bbox_2_Ray_2_pair& operator=(Bbox_2_Ray_2_pair const &o) ; Intersection_results intersection_type() const; bool intersection(double &x, double &y) const; bool intersection(double &x1, double &y1, double &x2, double &y2) const; protected: Bbox_2_Ray_2_pair_impl *pimpl; }; CGAL_EXPORT bool do_intersect_ray_2( const Bbox_2 &box, double x, double y, double dx, double dy); template bool do_intersect_ray_2( const Bbox_2 &box, const Ray &ray) { double startx = to_double(ray->start().x()); double starty = to_double(ray->start().y()); double dx = to_double(ray->direction().to_vector().x()); double dy = to_double(ray->direction().to_vector().y()); return do_intersect_ray_2(box, startx, starty, dx, dy); } template inline bool do_intersect_ray_2( const Ray &ray, const Bbox_2 &box) { return do_intersect_ray_2(box, ray); } } //namespace CGAL #ifdef CGAL_HEADER_ONLY #include #endif // CGAL_HEADER_ONLY #endif