Mercurial > hg > orthanc-stone
annotate OrthancStone/Resources/Graveyard/RTStructTentativeReimplementation-BGO/DicomStructure2.h @ 2036:444527d34647 deep-learning
sanity check in textures
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sat, 28 Jan 2023 12:05:23 +0100 |
parents | affde38b84de |
children | 07964689cb0b |
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) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 #pragma once |
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24 |
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25 #ifdef BGO_ENABLE_DICOMSTRUCTURESETLOADER2 |
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26 |
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27 #include "DicomStructurePolygon2.h" |
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28 #include "DicomStructureSetUtils.h" |
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29 |
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30 namespace OrthancStone |
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31 { |
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32 |
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33 /* |
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34 A structure has a color, a name, a set of slices.. |
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35 |
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36 Each slice is a polygon. |
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37 */ |
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38 struct DicomStructure2 |
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39 { |
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40 DicomStructure2() : |
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41 red_(0), green_(0), blue_(0), sliceThickness_(0), state_(Building) {} |
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42 |
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43 void AddPolygon(const DicomStructurePolygon2& polygon); |
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44 |
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45 /** |
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46 Once all polygons have been added, this method will determine: |
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47 - the slice orientation (through the normal vector) |
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48 - the spacing between slices (slice thickness) |
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49 |
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50 it will also set up the info required to efficiently compute plane |
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51 intersections later on. |
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52 */ |
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53 void ComputeDependentProperties(); |
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54 |
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55 /** |
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56 Being given a plane that is PARALLEL to the set of polygon structures, this |
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57 returns a pointer to the polygon located at that position (if it is closer |
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58 than thickness/2) or NULL if there is none. |
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59 |
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60 TODO: use sorted vector to improve |
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61 |
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62 DO NOT STORE THE RETURNED POINTER! |
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63 */ |
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64 const DicomStructurePolygon2* GetPolygonClosestToSlice(const CoordinateSystem3D& plane) const; |
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65 |
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66 Vector GetNormal() const; |
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67 |
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68 Color GetColor() const |
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69 { |
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70 return Color(red_, green_, blue_); |
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71 } |
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72 |
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73 bool IsValid() const |
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74 { |
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75 return state_ == Valid; |
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76 } |
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77 |
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78 /** |
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79 This method is used to project the 3D structure on a 2D plane. |
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80 |
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81 A structure is a stack of polygons, representing a volume. |
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82 |
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83 We need to compute the intersection between this volume and the supplied |
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84 cutting plane (the "slice"). This is more than a cutting plane: it is also |
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85 a 2D-coordinate system (the plane has axes vectors) |
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86 |
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87 The cutting plane is always parallel to the plane defined by two of the |
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88 world coordinate system axes. |
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89 |
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90 The result is a set of closed polygons. |
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91 |
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92 If the cut is parallel to the polygons, we pick the polygon closest to |
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93 the slice, project it on the slice and return it in slice coordinates. |
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94 |
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95 If the cut is perpendicular to the polygons, for each polygon, we compute |
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96 the intersection between the cutting plane and the polygon slab (imaginary |
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97 volume created by extruding the polygon above and below its plane by |
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98 thickness/2) : |
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99 - each slab, intersected by the plane, gives a set of 0..* rectangles \ |
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100 (only one if the polygon is convex) |
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101 - when doing this for the whole stack of slabs, we get a set of rectangles: |
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102 To compute these rectangles, for each polygon, we compute the intersection |
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103 between : |
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104 - the line defined by the intersection of the polygon plane and the cutting |
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105 plane |
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106 - the polygon itself |
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107 This yields 0 or 2*K points along the line C. These are turned into K |
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108 rectangles by taking two consecutive points along the line and extruding |
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109 this segment by sliceThickness/2 in the orientation of the polygon normal, |
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110 in both directions. |
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111 |
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112 Then, once this list of rectangles is computed, we need to group the |
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113 connected rectangles together. Connected, here, means sharing at least part |
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114 of an edge --> union/find data structures and algorithm. |
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115 */ |
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116 bool Project(std::vector< std::pair<ScenePoint2D, ScenePoint2D> >& polygons, const CoordinateSystem3D& plane) const; |
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117 |
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118 std::string interpretation_; |
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119 std::string name_; |
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120 uint8_t red_; |
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121 uint8_t green_; |
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122 uint8_t blue_; |
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123 |
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124 /** Internal */ |
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125 const std::vector<DicomStructurePolygon2>& GetPolygons() const |
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126 { |
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127 return polygons_; |
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128 } |
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129 |
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130 /** Internal */ |
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131 double GetSliceThickness() const |
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132 { |
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133 return sliceThickness_; |
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134 } |
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135 |
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136 private: |
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137 enum State |
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138 { |
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139 Building, |
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140 NormalComputed, |
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141 Valid, // When normal components AND slice thickness are computed |
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142 Invalid |
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143 }; |
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144 |
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145 void ComputeNormal(); |
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146 void ComputeSliceThickness(); |
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147 |
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148 std::vector<DicomStructurePolygon2> polygons_; |
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149 Vector normal_; |
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150 double sliceThickness_; |
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151 |
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152 /* |
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153 After creation (and while polygons are added), state is Building. |
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154 After ComputeDependentProperties() is called, state can either be |
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155 Valid or Invalid. In any case, the object becomes immutable. |
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156 */ |
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157 State state_; |
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158 }; |
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159 } |
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160 |
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161 #endif |
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162 // BGO_ENABLE_DICOMSTRUCTURESETLOADER2 |
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163 |