cgal/Packages/Optimisation_basic/include/CGAL/Optimisation/Construct_point_3.h

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2.4 KiB
C++

// Copyright (c) 1997-2001 Utrecht University (The Netherlands),
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
// and Tel-Aviv University (Israel). 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; version 2.1 of the License.
// See the file LICENSE.LGPL 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.
//
// $Source$
// $Revision$ $Date$
// $Name$
//
// Author(s) : Sven Schönherr <sven@inf.ethz.ch>
#ifndef CGAL_OPTIMISATION_CONSTRUCT_POINT_3_H
#define CGAL_OPTIMISATION_CONSTRUCT_POINT_3_H
// includes
#ifndef CGAL_POINT_3_H
# include <CGAL/Point_3.h>
#endif
#ifndef CGAL_PROTECT_VECTOR
# include <vector>
# define CGAL_PROTECT_VECTOR
#endif
#ifndef CGAL_PROTECT_FUNCTIONAL
# include <functional>
# define CGAL_PROTECT_FUNCTIONAL
#endif
#ifndef CGAL_PROTECT_ITERATOR
# include <iterator>
# define CGAL_PROTECT_ITERATOR
#endif
CGAL_BEGIN_NAMESPACE
// Class declaration
// =================
template < class R >
class Construct_point_3;
// Class interface
// ===============
template < class R_ >
class Construct_point_3 {
public:
// self
typedef R_ R;
typedef Construct_point_3<R> Self;
// types
typedef typename R::Point_3 Point;
// creation
Construct_point_3( ) { }
// operations
template < class InputIterator >
Point
operator() ( int, InputIterator first, InputIterator last) const
{
std::vector<typename R::RT> coords;
std::copy( first, last, std::back_inserter( coords));
if ( coords.size() < 4) {
return Point( coords[ 0], coords[ 1], coords[ 2]);
} else {
return Point( coords[ 0], coords[ 1], coords[ 2], coords[ 3]);
}
}
};
CGAL_END_NAMESPACE
#endif // CGAL_OPTIMISATION_CONSTRUCT_POINT_3_H
// ===== EOF ==================================================================