mirror of https://github.com/CGAL/cgal
104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
// Copyright (c) 2000
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Geert-Jan Giezeman
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#ifndef CGAL_BBOX_2_LINE_2_INTERSECTION_H
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#define CGAL_BBOX_2_LINE_2_INTERSECTION_H
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#include <CGAL/Bbox_2.h>
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#include <CGAL/Line_2.h>
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//#include <CGAL/Segment_2.h>
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//#include <CGAL/Point_2.h>
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#include <CGAL/kernel_assertions.h>
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#include <CGAL/number_utils.h>
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namespace CGAL {
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class Bbox_2_Line_2_pair_impl;
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class CGAL_EXPORT Bbox_2_Line_2_pair {
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public:
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enum Intersection_results {NO_INTERSECTION, POINT, SEGMENT};
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Bbox_2_Line_2_pair() ;
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Bbox_2_Line_2_pair(Bbox_2_Line_2_pair const &);
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Bbox_2_Line_2_pair(Bbox_2 const &bbox,
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double line_a, double line_b, double line_c);
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~Bbox_2_Line_2_pair() ;
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Bbox_2_Line_2_pair &operator=(Bbox_2_Line_2_pair const &o);
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// set_bbox(Bbox_2 const &bbox);
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// set_line(double line_a, double line_b, double line_c);
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Intersection_results intersection_type() const;
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bool intersection(double &x, double &y) const;
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bool intersection(double &x1, double &y1, double &x2, double &y2) const;
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protected:
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Bbox_2_Line_2_pair_impl *pimpl;
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};
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template <class Line>
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Bbox_2_Line_2_pair intersection_computer_line_2(
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Bbox_2 const &bbox, Line const &line)
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{
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return Bbox_2_Line_2_pair(bbox, to_double(line->a()),
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to_double(line->b()), to_double(line->c()));
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}
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inline bool do_intersect_line_2(
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const Bbox_2 &box, double line_a, double line_b, double line_c)
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{
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Bbox_2_Line_2_pair pair(box, line_a, line_b, line_c);
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return pair.intersection_type() != Bbox_2_Line_2_pair::NO_INTERSECTION;
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}
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template <class Line>
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bool do_intersect_line_2(
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Bbox_2 const &bbox, Line const &line)
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{
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return do_intersect_line_2(bbox, to_double(line->a()),
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to_double(line->b()), to_double(line->c()));
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}
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template <class Line>
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bool do_intersect_line_2(
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Line const &line, Bbox_2 const &bbox)
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{
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return do_intersect_line_2(bbox, to_double(line->a()),
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to_double(line->b()), to_double(line->c()));
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}
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template <class R>
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inline bool do_intersect(
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const Line_2<R> &line,
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const Bbox_2 &box)
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{
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return do_intersect(box, line);
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}
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} //namespace CGAL
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#ifdef CGAL_HEADER_ONLY
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#include <CGAL/Bbox_2_Line_2_intersection_impl.h>
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#endif // CGAL_HEADER_ONLY
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#endif
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