122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
// Copyright (c) 2009 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Mesh_3/include/CGAL/Mesh_3/utilities.h $
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// $Id: utilities.h 4dda7b6 2020-05-27T15:53:05+02:00 Sébastien Loriot
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Stephane Tayeb
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//
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//******************************************************************************
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// File Description :
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//******************************************************************************
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#ifndef CGAL_MESH_3_UTILITIES_H
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#define CGAL_MESH_3_UTILITIES_H
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#include <CGAL/license/Triangulation_3.h>
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#include <CGAL/Has_timestamp.h>
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#include <iterator>
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#include <string>
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#include <sstream>
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namespace CGAL {
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namespace Mesh_3 {
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namespace internal {
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struct Debug_messages_tools {
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template <typename Vertex_handle>
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static std::string disp_vert(Vertex_handle v, Tag_true) {
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std::stringstream ss;
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ss.precision(17);
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ss << (void*)(&*v) << "[ts=" << v->time_stamp() << "]"
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<< "(" << v->point() <<")";
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return ss.str();
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}
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template <typename Vertex_handle>
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static std::string disp_vert(Vertex_handle v, Tag_false) {
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std::stringstream ss;
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ss.precision(17);
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ss << (void*)(&*v) << "(" << v->point() <<")";
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return ss.str();
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}
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template <typename Vertex_handle>
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static std::string disp_vert(Vertex_handle v)
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{
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typedef typename std::iterator_traits<Vertex_handle>::value_type Vertex;
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return disp_vert(v, CGAL::internal::Has_timestamp<Vertex>());
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}
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};
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/**
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* @class First_of
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* Function object which returns the first element of a pair
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*/
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template <typename Pair>
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struct First_of :
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public CGAL::cpp98::unary_function<Pair, const typename Pair::first_type&>
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{
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typedef CGAL::cpp98::unary_function<Pair, const typename Pair::first_type&> Base;
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typedef typename Base::result_type result_type;
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typedef typename Base::argument_type argument_type;
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result_type operator()(const argument_type& p) const { return p.first; }
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}; // end class First_of
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/**
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* @class Ordered_pair
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* Stores two elements in an ordered manner, i.e. first() < second()
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*/
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template <typename T>
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class Ordered_pair
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{
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public:
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Ordered_pair(const T& t1, const T& t2)
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: data_(t1,t2)
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{
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if ( ! (t1 < t2) )
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{
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data_.second = t1;
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data_.first = t2;
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}
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}
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const T& first() const { return data_.first; }
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const T& second() const { return data_.second; }
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bool operator<(const Ordered_pair& rhs) const { return data_ < rhs.data_; }
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private:
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std::pair<T,T> data_;
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};
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/**
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* @class Iterator_not_in_complex
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* @brief A class to filter elements which do not belong to the complex
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*/
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template < typename C3T3 >
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class Iterator_not_in_complex
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{
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const C3T3& c3t3_;
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public:
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Iterator_not_in_complex(const C3T3& c3t3) : c3t3_(c3t3) { }
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template <typename Iterator>
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bool operator()(Iterator it) const { return ! c3t3_.is_in_complex(*it); }
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}; // end class Iterator_not_in_complex
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} // end namespace internal
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} // end namespace Mesh_3
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} //namespace CGAL
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#endif // CGAL_MESH_3_UTILITIES_H
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