Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2011 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 inpolygon 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_POLYGON_HH 00027 # define MLN_DRAW_POLYGON_HH 00028 00033 00034 # include <mln/core/concept/image.hh> 00035 # include <mln/core/site_set/p_array.hh> 00036 # include <mln/draw/line.hh> 00037 00038 00039 namespace mln 00040 { 00041 00042 namespace draw 00043 { 00044 00054 template <typename I> 00055 void polygon(Image<I>& ima, 00056 const p_array<mln_site(I)>& par, 00057 const mln_value(I)& v, 00058 unsigned output_ratio); 00059 00060 // \overload 00061 template <typename I> 00062 void polygon(Image<I>& ima, 00063 const p_array<mln_site(I)>& par, 00064 const mln_value(I)& v); 00065 00066 00067 # ifndef MLN_INCLUDE_ONLY 00068 00069 template <typename I> 00070 void polygon(Image<I>& ima_, 00071 const p_array<mln_site(I)>& par, 00072 const mln_value(I)& v, 00073 unsigned output_ratio) 00074 { 00075 I& ima = exact(ima_); 00076 mln_precondition(ima.is_valid()); 00077 mln_precondition(par.nelements() > 1); 00078 00079 mln_site(I) p_last, tmp; 00080 mln_piter(p_array<mln_site(I)>) p(par); 00081 p_last = par[0] / output_ratio; 00082 for_all(p) 00083 { 00084 tmp = p / output_ratio; 00085 draw::line(ima, p_last, tmp, v); 00086 p_last = tmp; 00087 } 00088 } 00089 00090 template <typename I> 00091 void polygon(Image<I>& ima, 00092 const p_array<mln_site(I)>& par, 00093 const mln_value(I)& v) 00094 { 00095 polygon(ima, par, v, 1); 00096 } 00097 00098 # endif // ! MLN_INCLUDE_ONLY 00099 00100 } // end of namespace mln::draw 00101 00102 } // end of namespace mln 00103 00104 00105 #endif // ! MLN_DRAW_POLYGON_HH