Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2007, 2008, 2009, 2011 EPITA Research and Development 00002 // Laboratory (LRDE) 00003 // 00004 // This file is part of Olena. 00005 // 00006 // Olena is free software: you can redistribute it and/or modify it under 00007 // the terms of the GNU General Public License as published by the Free 00008 // Software Foundation, version 2 of the License. 00009 // 00010 // Olena is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 // General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00017 // 00018 // As a special exception, you may use this file as part of a free 00019 // software project without restriction. Specifically, if other files 00020 // instantiate templates or use macros or inline functions from this 00021 // file, or you compile this file and link it with other files to produce 00022 // an executable, this file does not by itself cause the resulting 00023 // executable to be covered by the GNU General Public License. This 00024 // exception does not however invalidate any other reasons why the 00025 // executable file might be covered by the GNU General Public License. 00026 00027 #ifndef MLN_MORPHO_ATTRIBUTE_VOLUME_HH 00028 # define MLN_MORPHO_ATTRIBUTE_VOLUME_HH 00029 00034 00035 # include <mln/accu/internal/base.hh> 00036 # include <mln/math/diff_abs.hh> 00037 # include <mln/util/pix.hh> 00038 00039 00040 namespace mln 00041 { 00042 00043 // Forward declaration. 00044 namespace morpho { 00045 namespace attribute { 00046 template <typename I> struct volume; 00047 } 00048 } 00049 00050 00051 // Traits. 00052 00053 namespace trait 00054 { 00055 00056 template <typename I> 00057 struct accumulator_< morpho::attribute::volume<I> > 00058 { 00059 typedef accumulator::has_untake::no has_untake; 00060 typedef accumulator::has_set_value::no has_set_value; 00061 typedef accumulator::has_stop::no has_stop; 00062 typedef accumulator::when_pix::use_v when_pix; 00063 }; 00064 00065 } // end of namespace mln::trait 00066 00067 00068 namespace morpho 00069 { 00070 00071 namespace attribute 00072 { 00073 00078 template <typename I> 00079 struct volume 00080 : public mln::accu::internal::base< unsigned , volume<I> > 00081 { 00082 typedef mln_value(I) argument; 00083 00084 volume(); 00085 00088 void init(); 00089 00090 void take(const mln_value(I)& v); 00091 void take(const util::pix<I>& px); 00092 void take(const volume<I>& other); 00093 00094 void take_as_init_(const mln_value(I)& v); 00095 void take_as_init_(const util::pix<I>& px); 00097 00099 unsigned to_result() const; 00100 00103 bool is_valid() const; 00104 00106 unsigned area() const; 00107 00108 protected: 00110 mln_value(I) cur_level_; 00112 unsigned area_; 00114 unsigned volume_; 00115 }; 00116 00117 00118 00119 # ifndef MLN_INCLUDE_ONLY 00120 00121 template <typename I> 00122 inline 00123 volume<I>::volume() 00124 { 00125 init(); 00126 } 00127 00128 template <typename I> 00129 inline 00130 void 00131 volume<I>::init() 00132 { 00133 volume_ = 0; 00134 } 00135 00136 template <typename I> 00137 inline 00138 void 00139 volume<I>::take(const mln_value(I)& v) 00140 { 00141 mln_invariant(volume_ != mln_max(unsigned)); 00142 if (! is_valid()) 00143 { 00144 take_as_init_(v); 00145 return; 00146 } 00147 ++area_; 00148 volume_ += 1 + math::diff_abs(v, cur_level_); 00149 cur_level_ = v; 00150 } 00151 00152 template <typename I> 00153 inline 00154 void 00155 volume<I>::take(const util::pix<I>& px) 00156 { 00157 mln_invariant(volume_ != mln_max(unsigned)); 00158 take(px.v()); 00159 } 00160 00161 template <typename I> 00162 inline 00163 void 00164 volume<I>::take(const volume<I>& other) 00165 { 00166 mln_invariant(volume_ != mln_max(unsigned)); 00167 area_ += other.area_; 00168 volume_ += 00169 other.volume_ + 00170 other.area_ * math::diff_abs(other.cur_level_, cur_level_); 00171 // cur_level_ do not change. 00172 } 00173 00174 template <typename I> 00175 inline 00176 void 00177 volume<I>::take_as_init_(const mln_value(I)& v) 00178 { 00179 cur_level_ = v; 00180 area_ = 1; 00181 volume_ = 1; 00182 } 00183 00184 template <typename I> 00185 inline 00186 void 00187 volume<I>::take_as_init_(const util::pix<I>& px) 00188 { 00189 take_as_init_(px.v()); 00190 } 00191 00192 template <typename I> 00193 inline 00194 unsigned 00195 volume<I>::to_result() const 00196 { 00197 return volume_; 00198 } 00199 00200 template <typename I> 00201 inline 00202 unsigned 00203 volume<I>::area() const 00204 { 00205 return area_; 00206 } 00207 00208 template <typename I> 00209 inline 00210 bool 00211 volume<I>::is_valid() const 00212 { 00213 return volume_ != 0; 00214 } 00215 00216 # endif // ! MLN_INCLUDE_ONLY 00217 00218 } // end of namespace mln::morpho::attribute 00219 00220 } // end of namespace mln::morpho 00221 00222 } // end of namespace mln 00223 00224 00225 #endif // ! MLN_MORPHO_ATTRIBUTE_VOLUME_HH