68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
// 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)
|
|
//
|
|
// $URL: https://github.com/CGAL/cgal/blob/v5.1/Cartesian_kernel/include/CGAL/Cartesian/Triangle_2.h $
|
|
// $Id: Triangle_2.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
|
|
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
|
|
//
|
|
//
|
|
// Author(s) : Andreas Fabri, Herve Bronnimann
|
|
|
|
#ifndef CGAL_CARTESIAN_TRIANGLE_2_H
|
|
#define CGAL_CARTESIAN_TRIANGLE_2_H
|
|
|
|
#include <CGAL/Cartesian/predicates_on_points_2.h>
|
|
#include <CGAL/array.h>
|
|
|
|
namespace CGAL {
|
|
|
|
template <class R_>
|
|
class TriangleC2
|
|
{
|
|
typedef typename R_::FT FT;
|
|
typedef typename R_::Point_2 Point_2;
|
|
typedef typename R_::Vector_2 Vector_2;
|
|
typedef typename R_::Triangle_2 Triangle_2;
|
|
|
|
typedef std::array<Point_2, 3> Rep;
|
|
typedef typename R_::template Handle<Rep>::type Base;
|
|
|
|
Base base;
|
|
|
|
public:
|
|
typedef R_ R;
|
|
|
|
TriangleC2() {}
|
|
|
|
TriangleC2(const Point_2 &p, const Point_2 &q, const Point_2 &r)
|
|
: base(CGAL::make_array(p, q, r)) {}
|
|
|
|
|
|
const Point_2 &
|
|
vertex(int i) const
|
|
{
|
|
if (i>2) i = i%3;
|
|
else if (i<0) i = (i%3) + 3;
|
|
return (i==0) ? get_pointee_or_identity(base)[0] :
|
|
(i==1) ? get_pointee_or_identity(base)[1] :
|
|
get_pointee_or_identity(base)[2];
|
|
}
|
|
|
|
const Point_2 &
|
|
operator[](int i) const
|
|
{
|
|
return vertex(i);
|
|
}
|
|
|
|
};
|
|
|
|
} //namespace CGAL
|
|
|
|
#endif // CGAL_CARTESIAN_TRIANGLE_2_H
|