Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2007, 2008, 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_UTIL_LEMMINGS_HH 00027 # define MLN_UTIL_LEMMINGS_HH 00028 00032 00033 # include <mln/core/concept/image.hh> 00034 00035 00036 namespace mln 00037 { 00038 00039 namespace util 00040 { 00041 00045 template <typename I> 00046 struct lemmings_ : public Object< lemmings_<I> > 00047 { 00048 lemmings_(const Image<I>& ima, const mln_psite(I)& pt, 00049 const mln_deduce(I, psite, delta)& dpt, const mln_value(I)& val); 00050 00051 mln_psite(I) operator()(); 00052 00053 const I& ima_; 00054 mln_psite(I) pt_; 00055 const mln_deduce(I, psite, delta)& dpt_; 00056 const mln_value(I)& val_; 00057 }; 00058 00072 template <typename I> 00073 mln_psite(I) 00074 lemmings(const Image<I>& ima, const mln_psite(I)& pt, 00075 const mln_deduce(I, psite, delta)& dpt, const mln_value(I)& val); 00076 00077 00078 # ifndef MLN_INCLUDE_ONLY 00079 00080 // lemmings 00081 00082 template <typename I> 00083 inline 00084 lemmings_<I>::lemmings_(const Image<I>& ima, const mln_psite(I)& pt, 00085 const mln_deduce(I, psite, delta)& dpt, const mln_value(I)& val) 00086 : ima_(exact(ima)), 00087 pt_(pt), 00088 dpt_(dpt), 00089 val_(val) 00090 { 00091 } 00092 00093 template <typename I> 00094 mln_psite(I) 00095 lemmings_<I>::operator()() 00096 { 00097 while (ima_.domain().has(pt_) && ima_(pt_) == val_) 00098 pt_ += dpt_; 00099 return pt_; 00100 } 00101 00102 template <typename I> 00103 mln_psite(I) 00104 lemmings(const Image<I>& ima, const mln_psite(I)& pt, 00105 const mln_deduce(I, psite, delta)& dpt, const mln_value(I)& val) 00106 { 00107 lemmings_<I> lm(ima, pt, dpt, val); 00108 return lm(); 00109 } 00110 00111 # endif // ! MLN_INCLUDE_ONLY 00112 00113 } // end of namespace mln::util 00114 00115 } // end of namespace mln 00116 00117 00118 #endif // ! MLN_UTIL_LEMMINGS_HH