cgal/Spatial_searching/include/CGAL/Fuzzy_iso_box.h

108 lines
3.3 KiB
C++

// Copyright (c) 2002 Utrecht University (The Netherlands).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you may redistribute it under
// the terms of the Q Public License version 1.0.
// See the file LICENSE.QPL distributed with CGAL.
//
// 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) : Hans Tangelder (<hanst@cs.uu.nl>)
#ifndef CGAL_FUZZY_ISO_BOX_H
#define CGAL_FUZZY_ISO_BOX_H
#include <CGAL/Kd_tree_rectangle.h>
namespace CGAL {
template <class SearchTraits>
class Fuzzy_iso_box{
public:
typedef typename SearchTraits::Point_d Point_d;
typedef typename SearchTraits::Iso_box_d Iso_box_d;
typedef typename SearchTraits::FT FT;
typedef typename SearchTraits::Construct_min_vertex_d Construct_min_vertex_d;
typedef typename SearchTraits::Construct_max_vertex_d Construct_max_vertex_d;
typedef typename SearchTraits::Cartesian_const_iterator_d Cartesian_const_iterator_d;
typedef typename SearchTraits::Construct_cartesian_const_iterator_d Construct_cartesian_const_iterator_d;
private:
Point_d min, max;
Cartesian_const_iterator_d min_begin, max_begin;
FT eps;
unsigned int dim;
public:
// default constructor
Fuzzy_iso_box() {}
// constructor
Fuzzy_iso_box(const Point_d& p, const Point_d& q, FT epsilon=FT(0))
: eps(epsilon)
{
Construct_cartesian_const_iterator_d construct_it;
Cartesian_const_iterator_d begin = construct_it(p),
end = construct_it(p,1);
dim = end - begin;
Iso_box_d box = typename SearchTraits::Construct_iso_box_d()(p,q);
Construct_min_vertex_d construct_min_vertex_d;
Construct_max_vertex_d construct_max_vertex_d;
min = construct_min_vertex_d(box);
max = construct_max_vertex_d(box);
min_begin = construct_it(min);
max_begin = construct_it(max);
}
bool contains(const Point_d& p) const {
Construct_cartesian_const_iterator_d construct_it;
Cartesian_const_iterator_d pit = construct_it(p);
Cartesian_const_iterator_d minit= min_begin, maxit = max_begin;
for (unsigned int i = 0; i < dim; ++i, ++pit, ++minit, ++maxit) {
if ( ((*pit) < (*minit)) || ((*pit) >= (*maxit)) ) return false;
}
return true;
}
bool inner_range_intersects(const Kd_tree_rectangle<SearchTraits>& rectangle) const {
Cartesian_const_iterator_d minit= min_begin, maxit = max_begin;
for (unsigned int i = 0; i < dim; ++i, ++minit, ++maxit) {
if ( ((*maxit)-eps < rectangle.min_coord(i))
|| ((*minit)+eps >= rectangle.max_coord(i)) ) return false;
}
return true;
}
bool outer_range_contains(const Kd_tree_rectangle<SearchTraits>& rectangle) const {
Cartesian_const_iterator_d minit= min_begin, maxit = max_begin;
for (unsigned int i = 0; i < dim; ++i, ++minit, ++maxit) {
if ( ((*maxit)+eps < rectangle.max_coord(i) )
|| ((*minit)-eps >= rectangle.min_coord(i)) ) return false;
}
return true;
}
}; // class Fuzzy_iso_box
} // namespace CGAL
#endif // FUZZY_ISO_BOX_H