Milena (Olena)
User documentation 2.0a Id
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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_FUN_V2V_PROJECTION_HH 00027 # define MLN_FUN_V2V_PROJECTION_HH 00028 00032 00033 # include <mln/core/concept/function.hh> 00034 # include <mln/core/point.hh> 00035 # include <mln/core/grids.hh> 00036 00037 00038 namespace mln 00039 { 00040 00041 namespace fun 00042 { 00043 00044 namespace v2v 00045 { 00046 00047 template <typename P, unsigned dir> 00048 struct projection : public Function_v2v< projection<P,dir> > 00049 { 00050 private: 00051 typedef mln_grid(P) G_; 00052 typedef mln_coord(P) C_; 00053 enum { n_ = G_::dim }; 00054 00055 public: 00056 00057 typedef point<mln_regular_grid_from_dim(n_ - 1), C_> result; 00058 typedef P argument; 00059 00060 result operator()(const P& p) const; 00061 }; 00062 00063 00064 # ifndef MLN_INCLUDE_ONLY 00065 00066 template <typename P, unsigned dir> 00067 inline 00068 typename projection<P, dir>::result 00069 projection<P, dir>::operator()(const P& p) const 00070 { 00071 result tmp; 00072 for (unsigned i = 0, j = 0; i < n_; ++i) 00073 if (i == dir) 00074 continue; 00075 else 00076 tmp[j++] = p[i]; 00077 return tmp; 00078 } 00079 00080 # endif // ! MLN_INCLUDE_ONLY 00081 00082 } // end of namespace mln::fun::v2v 00083 00084 } // end of namespace mln::fun 00085 00086 } // end of namespace mln 00087 00088 00089 #endif // ! MLN_FUN_V2V_PROJECTION_HH