Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2010 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 indashed_line 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_DRAW_DASHED_LINE_HH 00027 # define MLN_DRAW_DASHED_LINE_HH 00028 00033 00034 # include <mln/core/concept/function.hh> 00035 # include <mln/core/concept/image.hh> 00036 # include <mln/core/site_set/p_line2d.hh> 00037 # include <mln/core/image/imorph/safe.hh> 00038 # include <mln/data/fill.hh> 00039 # include <mln/pw/image.hh> 00040 # include <mln/pw/cst.hh> 00041 00042 00043 namespace mln 00044 { 00045 00046 namespace draw 00047 { 00048 00062 template <typename I> 00063 void dashed_line(Image<I>& ima, 00064 const mln_psite(I)& beg, const mln_psite(I)& end, 00065 const mln_value(I)& v); 00066 00067 00068 # ifndef MLN_INCLUDE_ONLY 00069 00070 namespace internal 00071 { 00072 00073 template <typename I, unsigned dim> 00074 struct dashed_line_f : Function_v2b<dashed_line_f<I, dim> > 00075 { 00076 typedef bool result; 00077 00078 bool operator()(const mln_site(I)& p) const 00079 { 00080 return p[dim] % 2; 00081 } 00082 00083 }; 00084 00085 } // end of namespace mln::draw::internal 00086 00087 00088 00089 template <typename I> 00090 inline 00091 void dashed_line(Image<I>& ima_, 00092 const mln_psite(I)& beg, const mln_psite(I)& end, 00093 const mln_value(I)& v) 00094 { 00095 I& ima = exact(ima_); 00096 mln_precondition(ima.is_valid()); 00097 00098 if (! ima.has(beg)) 00099 trace::warning("Begin site is not part of the given image."); 00100 if (! ima.has(end)) 00101 trace::warning("End site is not part of the given image."); 00102 00103 data::fill(((ima | p_line2d(beg, end)).rw() | internal::dashed_line_f<I, 1>()).rw(), v); 00104 } 00105 00106 # endif // ! MLN_INCLUDE_ONLY 00107 00108 } // end of namespace mln::draw 00109 00110 } // end of namespace mln 00111 00112 00113 #endif // ! MLN_DRAW_DASHED_LINE_HH