/usr/include/CGAL/bounding_box.h is in libcgal-dev 4.2-5ubuntu1.
This file is owned by root:root, with mode 0o644.
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// 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) : Sylvain Pion
#ifndef CGAL_BOUNDING_BOX_H
#define CGAL_BOUNDING_BOX_H
#include <CGAL/basic.h>
#include <CGAL/Kernel_traits.h>
#include <CGAL/Dimension.h>
#include <CGAL/Kernel/Dimension_utils.h>
namespace CGAL {
// TODO :
// - Add support for more types of objects.
// - Generalize to d-dimension.
// - Maybe the internal code itself could be factorized across dimensions...
namespace internal {
// internal functions specialized by dimension.
template < class ForwardIterator, class Traits >
typename Traits::Iso_rectangle_2
bounding_box(ForwardIterator f, ForwardIterator l, const Traits& t, Dimension_tag<2>)
{
CGAL_precondition(f != l);
typedef typename Traits::Less_x_2 Less_x_2;
typedef typename Traits::Less_y_2 Less_y_2;
typedef typename Traits::Construct_iso_rectangle_2 Rect;
Less_x_2 lessx = t.less_x_2_object();
Less_y_2 lessy = t.less_y_2_object();
Rect rect = t.construct_iso_rectangle_2_object();
ForwardIterator xmin = f;
ForwardIterator xmax = f;
ForwardIterator ymin = f;
ForwardIterator ymax = f;
while (++f != l) {
if (lessx(*f, *xmin))
xmin = f;
else if (lessx(*xmax, *f))
xmax = f;
if (lessy(*f, *ymin))
ymin = f;
else if (lessy(*ymax, *f))
ymax = f;
}
return rect(*xmin, *xmax, *ymin, *ymax);
}
template < class ForwardIterator, class Traits >
typename Traits::Iso_cuboid_3
bounding_box(ForwardIterator f, ForwardIterator l, const Traits& t, Dimension_tag<3>)
{
CGAL_precondition(f != l);
typedef typename Traits::Less_x_3 Less_x_3;
typedef typename Traits::Less_y_3 Less_y_3;
typedef typename Traits::Less_z_3 Less_z_3;
typedef typename Traits::Construct_iso_cuboid_3 Cub;
Less_x_3 lessx = t.less_x_3_object();
Less_y_3 lessy = t.less_y_3_object();
Less_z_3 lessz = t.less_z_3_object();
Cub cub = t.construct_iso_cuboid_3_object();
ForwardIterator xmin = f;
ForwardIterator xmax = f;
ForwardIterator ymin = f;
ForwardIterator ymax = f;
ForwardIterator zmin = f;
ForwardIterator zmax = f;
while (++f != l) {
if (lessx(*f, *xmin))
xmin = f;
else if (lessx(*xmax, *f))
xmax = f;
if (lessy(*f, *ymin))
ymin = f;
else if (lessy(*ymax, *f))
ymax = f;
if (lessz(*f, *zmin))
zmin = f;
else if (lessz(*zmax, *f))
zmax = f;
}
return cub(*xmin, *xmax, *ymin, *ymax, *zmin, *zmax);
}
#if 0
template < class ForwardIterator, class Traits >
typename Traits::Iso_box_d
bounding_box(ForwardIterator f, ForwardIterator l, const Traits& t, Dynamic_dimension_tag);
// To be written...
#endif
}
template < class ForwardIterator, class K >
inline
typename Access::Iso_box<K, typename Ambient_dimension<typename std::iterator_traits<ForwardIterator>
::value_type, K>::type>::type
bounding_box(ForwardIterator f, ForwardIterator l, const K& k)
{
typedef typename std::iterator_traits< ForwardIterator >::value_type Pt;
return internal::bounding_box(f, l, k, typename Ambient_dimension<Pt>::type() );
}
template < class ForwardIterator >
inline
typename Access::Iso_box<typename Kernel_traits<typename std::iterator_traits<ForwardIterator>::value_type>::Kernel,
typename Ambient_dimension<typename std::iterator_traits<ForwardIterator>::value_type,
typename Kernel_traits<typename std::iterator_traits<ForwardIterator>::value_type>::Kernel>::type >::type
bounding_box(ForwardIterator f, ForwardIterator l)
{
typedef typename std::iterator_traits< ForwardIterator >::value_type Pt;
typedef typename Kernel_traits<Pt>::Kernel Kernel;
return bounding_box(f, l, Kernel());
}
} //namespace CGAL
#endif // CGAL_BOUNDING_BOX_H
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