119 lines
2.6 KiB
C++
119 lines
2.6 KiB
C++
// Copyright (c) 2005 INRIA Sophia-Antipolis (France).
|
|
// All rights reserved.
|
|
//
|
|
// This file is part of CGAL (www.cgal.org).
|
|
//
|
|
// $URL: https://github.com/CGAL/cgal/blob/v5.1/Surface_mesher/include/CGAL/Point_traits.h $
|
|
// $Id: Point_traits.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
|
|
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
|
|
//
|
|
//
|
|
// Author(s) : Laurent RINEAU
|
|
|
|
#ifndef CGAL_POINT_TRAITS_H
|
|
#define CGAL_POINT_TRAITS_H
|
|
|
|
#include <CGAL/license/Surface_mesher.h>
|
|
|
|
|
|
#include <CGAL/Weighted_point_3.h>
|
|
#include <CGAL/assertions.h>
|
|
|
|
namespace CGAL {
|
|
|
|
template <class P>
|
|
struct Is_weighted : public Tag_false {} ;
|
|
|
|
template <typename K>
|
|
struct Is_weighted< ::CGAL::Weighted_point_3<K> > :
|
|
public Tag_true {} ;
|
|
|
|
namespace details {
|
|
|
|
template <class P, typename FT, bool>
|
|
struct Point_traits_aux
|
|
{
|
|
// should give errors
|
|
};
|
|
|
|
template <class P, typename FT>
|
|
struct Point_traits_aux<P, FT, false>
|
|
{
|
|
typedef P Point;
|
|
typedef P Bare_point;
|
|
typedef typename Kernel_traits<P>::type K;
|
|
typedef typename ::CGAL::Weighted_point_3<K> Weighted_point;
|
|
typedef Tag_false Is_weighted;
|
|
|
|
const Bare_point& bare_point(const Point& bp)
|
|
{
|
|
return bp;
|
|
}
|
|
|
|
Weighted_point weighted_point(const Point& bp)
|
|
{
|
|
return Weighted_point(bp);
|
|
}
|
|
|
|
const Point& point(const Bare_point& bp)
|
|
{
|
|
return bp;
|
|
}
|
|
|
|
const Point& point(const Weighted_point& wp)
|
|
{
|
|
return wp.point();
|
|
}
|
|
}; // end class Point_traits_aux<P>
|
|
|
|
template <class P, typename FT>
|
|
struct Point_traits_aux<P, FT, true>
|
|
{
|
|
typedef P Point;
|
|
typedef P Weighted_point;
|
|
typedef typename Point::Point Bare_point;
|
|
typedef Tag_true Is_weighted;
|
|
|
|
const Bare_point& bare_point(const Point& wp)
|
|
{
|
|
return wp.point();
|
|
}
|
|
|
|
const Weighted_point& weighted_point(const Point& wp)
|
|
{
|
|
return wp;
|
|
}
|
|
|
|
Point point(const Bare_point& bp)
|
|
{
|
|
return Weighted_point(bp);
|
|
}
|
|
|
|
const Point& point(const Weighted_point& wp)
|
|
{
|
|
return wp;
|
|
}
|
|
}; // end class Point_traits_aux<P, FT, true>
|
|
|
|
template <class Point>
|
|
struct FT_of_point
|
|
{
|
|
typedef typename CGAL::Kernel_traits<Point>::Kernel::FT type;
|
|
};
|
|
|
|
} // end namespace details
|
|
|
|
template <class Point>
|
|
class Point_traits
|
|
: public details::Point_traits_aux<
|
|
Point,
|
|
typename details::FT_of_point<Point>::type,
|
|
Is_weighted<Point>::value
|
|
>
|
|
{
|
|
}; // end class Point_traits<T>
|
|
|
|
} // end namespace CGAL
|
|
|
|
#endif // CGAL_POINT_TRAITS_H
|