Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/DicomStructureSetUtils.cpp @ 1478:fab6c6e795a3
Framework/Toolbox/SortedFrames.cpp
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 18 Jun 2020 16:01:00 +0200 |
parents | 182bf3106ee2 |
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rev | line source |
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1 /** |
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 #include "DicomStructureSetUtils.h" |
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22 |
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23 namespace OrthancStone |
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24 { |
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25 |
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26 #if 0 |
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27 void DicomStructure2::PartitionRectangleList(std::vector< std::vector<size_t> > & sets, const std::vector<RtStructRectanglesInSlab> slabCuts) |
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28 { |
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29 // map position ( <slabIndex,rectIndex> )--> disjoint set index |
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30 std::map<std::pair<size_t, size_t>, size_t> posToIndex; |
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31 |
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32 // disjoint set index --> position |
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33 std::map<size_t, std::pair<size_t, size_t> > indexToPos; |
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34 |
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35 size_t nextIndex = 0; |
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36 for (size_t i = 0; i < slabCuts.size(); ++i) |
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37 { |
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38 for (size_t j = 0; j < slabCuts[i].size(); ++j) |
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39 { |
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40 std::pair<size_t, size_t> pos(i, j); |
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41 posToIndex<pos> = nextIndex; |
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42 indexToPos<nextIndex> = pos; |
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43 } |
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44 } |
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45 // nextIndex is now the total rectangle count |
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46 DisjointDataSet ds(nextIndex); |
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47 |
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48 // we loop on all slabs (except the last one) and we connect all rectangles |
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49 if (slabCuts.size() < 2) |
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50 { |
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51 #error write special case |
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52 } |
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53 else |
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54 { |
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55 for (size_t i = 0; i < slabCuts.size() - 1; ++i) |
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56 { |
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57 for (size_t j = 0; j < slabCuts[i].size(); ++j) |
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58 { |
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59 const RtStructRectangleInSlab& r1 = slabCuts[i][j]; |
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60 const size_t r1i = posToIndex(std::pair<size_t, size_t>(i, j)); |
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61 for (size_t k = 0; k < slabCuts[i + 1].size(); ++k) |
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62 { |
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63 const RtStructRectangleInSlab& r2 = slabCuts[i + 1][k]; |
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64 const size_t r2i = posToIndex(std::pair<size_t, size_t>(i, j)); |
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65 // rect.xmin <= rectBottom.xmax && rectBottom.xmin <= rect.xmax |
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66 if ((r1.xmin <= r2.xmax) && (r2.xmin <= r1.xmax)) |
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67 { |
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68 #error now go! |
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69 } |
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70 |
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71 } |
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72 } |
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73 } |
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74 } |
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75 #endif |
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76 |
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77 /* |
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78 |
1463 | 79 compute list of segments : |
80 | |
81 numberOfRectsFromHereOn = 0 | |
82 possibleNext = {in_k,in_kplus1} | |
83 | |
84 for all boundaries: | |
85 - we create a vertical segment and we push it | |
86 - if boundary is a start, numberOfRectsFromHereOn += 1. | |
87 - if we switch from 0 to 1, we start a segment | |
88 - if we switch from 1 to 2, we end the current segment and we record it | |
89 - if boundary is an end, numberOfRectsFromHereOn -= 1. | |
90 - if we switch from 1 to 0, we end the current segment and we record it | |
91 - if we switch from 2 to 1, we start a segment | |
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92 */ |
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93 |
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94 // static |
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95 void AddSlabBoundaries( |
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96 std::vector<std::pair<double, RectangleBoundaryKind> > & boundaries, |
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97 const std::vector<RtStructRectanglesInSlab> & slabCuts, size_t iSlab) |
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98 { |
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99 if (iSlab < slabCuts.size()) |
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100 { |
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101 const RtStructRectanglesInSlab& slab = slabCuts[iSlab]; |
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102 for (size_t iRect = 0; iRect < slab.size(); ++iRect) |
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103 { |
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104 const RtStructRectangleInSlab& rect = slab[iRect]; |
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105 { |
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106 std::pair<double, RectangleBoundaryKind> boundary(rect.xmin, RectangleBoundaryKind_Start); |
1463 | 107 boundaries.insert(std::lower_bound(boundaries.begin(), boundaries.end(), boundary), boundary); |
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108 } |
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109 { |
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110 std::pair<double, RectangleBoundaryKind> boundary(rect.xmax, RectangleBoundaryKind_End); |
1463 | 111 boundaries.insert(std::lower_bound(boundaries.begin(), boundaries.end(), boundary), boundary); |
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112 } |
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113 } |
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114 } |
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115 } |
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116 |
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117 // static |
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118 void ProcessBoundaryList( |
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119 std::vector< std::pair<Point2D, Point2D> > & segments, |
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120 const std::vector<std::pair<double, RectangleBoundaryKind> > & boundaries, |
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121 double y) |
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122 { |
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123 Point2D start; |
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124 Point2D end; |
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125 int curNumberOfSegments = 0; // we count the number of segments. we only draw if it is 1 (not 0 or 2) |
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126 for (size_t i = 0; i < boundaries.size(); ++i) |
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127 { |
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128 switch (boundaries[i].second) |
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129 { |
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130 case RectangleBoundaryKind_Start: |
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131 curNumberOfSegments += 1; |
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132 switch (curNumberOfSegments) |
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133 { |
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134 case 0: |
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135 assert(false); |
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136 break; |
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137 case 1: |
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138 // a new segment has begun! |
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139 start.x = boundaries[i].first; |
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140 start.y = y; |
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141 break; |
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142 case 2: |
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143 // an extra segment has begun : stop the current one (we don't draw overlaps) |
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144 end.x = boundaries[i].first; |
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145 end.y = y; |
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146 segments.push_back(std::pair<Point2D, Point2D>(start, end)); |
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147 break; |
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148 default: |
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149 //assert(false); // seen IRL ! |
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150 break; |
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151 } |
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152 break; |
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153 case RectangleBoundaryKind_End: |
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154 curNumberOfSegments -= 1; |
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155 switch (curNumberOfSegments) |
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156 { |
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157 case 0: |
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158 // a lone (thus active) segment has ended. |
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159 end.x = boundaries[i].first; |
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160 end.y = y; |
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161 segments.push_back(std::pair<Point2D, Point2D>(start, end)); |
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162 break; |
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163 case 1: |
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164 // an extra segment has ended : start a new one one |
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165 start.x = boundaries[i].first; |
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166 start.y = y; |
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167 break; |
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168 default: |
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169 // this should not happen! |
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170 //assert(false); |
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171 break; |
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172 } |
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173 break; |
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174 default: |
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175 assert(false); |
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176 break; |
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177 } |
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178 } |
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179 } |
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180 |
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181 #if 0 |
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182 void ConvertListOfSlabsToSegments( |
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183 std::vector< std::pair<Point2D, Point2D> >& segments, |
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184 const std::vector<RtStructRectanglesInSlab>& slabCuts, |
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185 const size_t totalRectCount) |
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186 { |
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187 #error to delete |
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188 } |
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189 #else |
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190 // See https://www.dropbox.com/s/bllco6q8aazxk44/2019-09-18-rtstruct-cut-algorithm-rect-merge.png |
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191 void ConvertListOfSlabsToSegments( |
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192 std::vector< std::pair<Point2D, Point2D> > & segments, |
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193 const std::vector<RtStructRectanglesInSlab> & slabCuts, |
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194 const size_t totalRectCount) |
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195 { |
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196 if (slabCuts.size() == 0) |
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197 return; |
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198 |
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199 if (totalRectCount > 0) |
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200 segments.reserve(4 * totalRectCount); // worst case, but common. |
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201 |
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202 /* |
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203 VERTICAL |
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204 */ |
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205 for (size_t iSlab = 0; iSlab < slabCuts.size(); ++iSlab) |
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206 { |
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207 for (size_t iRect = 0; iRect < slabCuts[iSlab].size(); ++iRect) |
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208 { |
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209 const RtStructRectangleInSlab& rect = slabCuts[iSlab][iRect]; |
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210 { |
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211 Point2D p1(rect.xmin, rect.ymin); |
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212 Point2D p2(rect.xmin, rect.ymax); |
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213 segments.push_back(std::pair<Point2D, Point2D>(p1, p2)); |
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214 } |
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215 { |
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216 Point2D p1(rect.xmax, rect.ymin); |
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217 Point2D p2(rect.xmax, rect.ymax); |
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218 segments.push_back(std::pair<Point2D, Point2D>(p1, p2)); |
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219 } |
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220 } |
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221 } |
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222 |
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223 /* |
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224 HORIZONTAL |
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225 */ |
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226 |
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227 // if we have N slabs, we have N+1 potential vertical positions for horizontal segments |
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228 // - one for top of slab 0 |
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229 // - N-1 for all positions between two slabs |
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230 // - one for bottom of slab N-1 |
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231 |
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232 // this adds all the horizontal segments for the tops of 3the rectangles |
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233 // in row 0 |
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234 if (slabCuts[0].size() > 0) |
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235 { |
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236 std::vector<std::pair<double, RectangleBoundaryKind> > boundaries; |
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237 AddSlabBoundaries(boundaries, slabCuts, 0); |
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238 |
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239 ProcessBoundaryList(segments, boundaries, slabCuts[0][0].ymin); |
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240 } |
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241 |
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242 // this adds all the horizontal segments belonging to two slabs |
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243 for (size_t iSlab = 0; iSlab < slabCuts.size() - 1; ++iSlab) |
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244 { |
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245 std::vector<std::pair<double, RectangleBoundaryKind> > boundaries; |
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246 AddSlabBoundaries(boundaries, slabCuts, iSlab); |
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247 AddSlabBoundaries(boundaries, slabCuts, iSlab + 1); |
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248 double curY = 0; |
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249 if (slabCuts[iSlab].size() > 0) |
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250 { |
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251 curY = slabCuts[iSlab][0].ymax; |
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252 ProcessBoundaryList(segments, boundaries, curY); |
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253 } |
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254 else if (slabCuts[iSlab + 1].size() > 0) |
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255 { |
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256 curY = slabCuts[iSlab + 1][0].ymin; |
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257 ProcessBoundaryList(segments, boundaries, curY); |
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258 } |
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259 else |
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260 { |
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261 // nothing to do!! : both slab lists are empty! |
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262 } |
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263 } |
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264 |
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265 // this adds all the horizontal segments for the BOTTOM of the rectangles |
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266 // on last row |
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267 if (slabCuts[slabCuts.size() - 1].size() > 0) |
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268 { |
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269 std::vector<std::pair<double, RectangleBoundaryKind> > boundaries; |
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270 AddSlabBoundaries(boundaries, slabCuts, slabCuts.size() - 1); |
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271 |
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272 ProcessBoundaryList(segments, boundaries, slabCuts[slabCuts.size() - 1][0].ymax); |
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273 } |
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274 } |
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275 #endif |
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276 } |