Mercurial > hg > orthanc-stone

annotate Framework/Toolbox/DicomStructurePolygon2.h @ 998:38b6bb0bdd72

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added a new set of classes that correctly handle non-convex polygons (not used yet because of limitations in coordinates computing): DicomStructure2, DicomStructureSet2, DicomStructurePolygon2, DicomStructureSetSlicer2. Too many shortcuts have been taken when computing the actual position.
author Benjamin Golinvaux <bgo@osimis.io>
date Fri, 20 Sep 2019 11:58:00 +0200
parents
children 29f5f2031310
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998
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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) 2017-2019 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 #pragma once
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22
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23 #include "CoordinateSystem3D.h"
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24 #include "DicomStructureSetUtils.h"
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25 #include "Extent2D.h"
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26
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27 #include "../Scene2D/Color.h"
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28 #include "../StoneException.h"
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29
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30 #include <Plugins/Samples/Common/FullOrthancDataset.h>
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31
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32 #include <list>
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33 #include <string>
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34
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35 namespace OrthancStone
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36 {
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37
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38 /**
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39 Only polygons that are planar and parallel to either the X,Y or Z plane
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40 ("X plane" == plane where X is equal to a constant for each point) are
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41 supported.
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42 */
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43 class DicomStructurePolygon2
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44 {
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45 public:
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46 enum Type
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47 {
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48 ClosedPlanar,
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49 Unsupported
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50 };
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51
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52 DicomStructurePolygon2(std::string referencedSopInstanceUid, const std::string& type)
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53 : referencedSopInstanceUid_(referencedSopInstanceUid)
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54 , state_(Building)
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55 , minX_(std::numeric_limits<double>::max())
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56 , maxX_(-std::numeric_limits<double>::max())
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57 , minY_(std::numeric_limits<double>::max())
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58 , maxY_(-std::numeric_limits<double>::max())
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59 , minZ_(std::numeric_limits<double>::max())
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60 , maxZ_(-std::numeric_limits<double>::max())
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61 , type_(TypeFromString(type))
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62 {
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63 ORTHANC_ASSERT(type_ == ClosedPlanar);
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64 }
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65
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66 void ComputeDependentProperties();
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67
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68 size_t GetPointCount() const
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69 {
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70 ORTHANC_ASSERT(state_ == Valid);
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71 return points_.size();
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72 }
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73
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74 const Point3D& GetPoint(size_t i) const
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75 {
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76 ORTHANC_ASSERT(state_ == Valid);
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77 return points_.at(i);
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78 }
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79
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80 void AddPoint(const Point3D& v)
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81 {
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82 ORTHANC_ASSERT(state_ == Building);
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83 points_.push_back(v);
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84 }
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85
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86 void Reserve(size_t n)
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87 {
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88 ORTHANC_ASSERT(state_ == Building);
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89 points_.reserve(n);
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90 }
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91
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92 /**
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93 This method takes a plane+coord system that is parallel to the polygon
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94 and adds to polygons a new vector with the ordered set of points projected
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95 on the plane, in the plane coordinate system.
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96 */
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97 void ProjectOnParallelPlane(
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98 std::vector< std::pair<Point2D,Point2D> >& segments,
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99 const CoordinateSystem3D& plane) const;
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100
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101 /**
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102 Returns the coordinates of the intersection of the polygon and a plane
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103 that is perpendicular to the polygons (plane has either constant X or
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104 constant Y)
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105 */
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106 void ProjectOnConstantPlane(
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107 std::vector<Point2D>& intersections,
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108 const CoordinateSystem3D& plane) const;
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109
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110 /**
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111 This method assumes polygon has a normal equal to 0,0,-1 and 0,0,1 (thus,
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112 the polygon is parallel to the XY plane) and returns the Z coordinate of
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113 all the polygon points
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114 */
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115 double GetZ() const;
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116
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117 /**
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118 The normal sign is left undefined for now
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119 */
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120 Vector3D GetNormal() const
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121 {
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122 return normal_;
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123 }
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124
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125 /**
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126 This method will compute the intersection between a polygon and
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127 a plane where either X, Y or Z is constant.
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128 The plane is given with an origin and a normal. If the normal is
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129 not parallel to an axis, an error is raised.
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130 */
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131 void ComputeIntersectionWithPlane(const CoordinateSystem3D& plane);
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132
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133 private:
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134 static Type TypeFromString(const std::string& s)
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135 {
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136 if (s == "CLOSED_PLANAR")
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137 return ClosedPlanar;
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138 else
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139 return Unsupported;
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140 }
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141 enum State
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142 {
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143 Building,
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144 Valid
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145 };
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146 std::string referencedSopInstanceUid_;
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147 CoordinateSystem3D geometry_;
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148 std::vector<Point3D> points_;
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149 Vector3D normal_; // sign is irrelevant for now
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150 State state_;
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151 double minX_, maxX_, minY_, maxY_, minZ_, maxZ_;
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152 Type type_;
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153 };
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154 }
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155