Claw  1.7.3
coordinate_traits.hpp
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00001 /*
00002   CLAW - a C++ Library Absolutely Wonderful
00003 
00004   CLAW is a free library without any particular aim but being useful to 
00005   anyone.
00006 
00007   Copyright (C) 2005-2011 Julien Jorge
00008 
00009   This library is free software; you can redistribute it and/or
00010   modify it under the terms of the GNU Lesser General Public
00011   License as published by the Free Software Foundation; either
00012   version 2.1 of the License, or (at your option) any later version.
00013 
00014   This library is distributed in the hope that it will be useful,
00015   but WITHOUT ANY WARRANTY; without even the implied warranty of
00016   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017   Lesser General Public License for more details.
00018 
00019   You should have received a copy of the GNU Lesser General Public
00020   License along with this library; if not, write to the Free Software
00021   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00022   contact: julien.jorge@gamned.org
00023 */
00030 #ifndef __CLAW_MATH_COORDINATE_TRAITS_HPP__
00031 #define __CLAW_MATH_COORDINATE_TRAITS_HPP__
00032 
00033 #include <claw/coordinate_2d.hpp>
00034 #include <claw/vector_2d.hpp>
00035 
00036 namespace claw
00037 {
00038   namespace math
00039   {
00046     template< typename C >
00047     struct coordinate_traits;
00048 
00054     template<typename T>
00055     struct coordinate_traits< claw::math::coordinate_2d<T> >
00056     {
00058       typedef claw::math::coordinate_2d<T> coordinate_type;
00059 
00061       typedef typename coordinate_type::value_type value_type;
00062 
00067       static value_type get_x( const coordinate_type& c )
00068       {
00069         return c.x;
00070       } // get_x()
00071 
00076       static value_type get_y( const coordinate_type& c )
00077       {
00078         return c.y;
00079       } // get_y()
00080 
00087       static coordinate_type make_coordinate( value_type x, value_type y )
00088       {
00089         return coordinate_type(x, y);
00090       } // make_coordinate()
00091 
00092     }; // struct coordinate_traits [claw::math::coordinate_2d]
00093 
00099     template<typename T>
00100     struct coordinate_traits< claw::math::vector_2d<T> >
00101     {
00103       typedef claw::math::vector_2d<T> coordinate_type;
00104 
00106       typedef typename coordinate_type::value_type value_type;
00107 
00112       static value_type get_x( const coordinate_type& c )
00113       {
00114         return c.x;
00115       } // get_x()
00116 
00121       static value_type get_y( const coordinate_type& c )
00122       {
00123         return c.y;
00124       } // get_y()
00125 
00132       static coordinate_type make_coordinate( value_type x, value_type y )
00133       {
00134         return coordinate_type(x, y);
00135       } // make_coordinate()
00136 
00137     }; // struct coordinate_traits [claw::math::vector_2d]
00138 
00139   } // namespace math
00140 } // namespace claw
00141 
00142 #endif // __CLAW_MATH_COORDINATE_TRAITS_HPP__