00001 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #ifndef MLN_WORLD_INTER_PIXEL_DIM2_IS_EDGE_HH 00027 # define MLN_WORLD_INTER_PIXEL_DIM2_IS_EDGE_HH 00028 00032 00033 # include <mln/core/alias/point2d.hh> 00034 00035 namespace mln 00036 { 00037 00038 namespace world 00039 { 00040 00041 namespace inter_pixel 00042 { 00043 00044 namespace dim2 00045 { 00046 00047 struct is_edge : public Function_v2b< is_edge > 00048 { 00049 typedef bool result; 00050 bool operator()(const point2d& p) const; 00051 }; 00052 00053 00054 # ifndef MLN_INCLUDE_ONLY 00055 00056 inline 00057 bool 00058 is_edge::operator()(const point2d& p) const 00059 { 00060 return p.row() % 2 + p.col() % 2 == 1; 00061 } 00062 00063 # endif // ! MLN_INCLUDE_ONLY 00064 00065 00066 } // end of namespace mln::world::inter_pixel::dim2 00067 00068 } // end of namespace mln::world::inter_pixel 00069 00070 } // end of namespace mln::world 00071 00072 } // end of namespace mln 00073 00074 #endif // ! MLN_WORLD_INTER_PIXEL_DIM2_IS_EDGE_HH
1.7.1