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annotate OrthancStone/Sources/Toolbox/CoordinateSystem3D.h @ 1772:6c246f862b00

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unit test VolumeRendering.Basic
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 12 May 2021 17:24:24 +0200
parents 9ac2a65d4172
children 3889ae96d2e9
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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) 2017-2021 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 Lesser 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 * Lesser 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 Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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23 #pragma once
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24
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25 #include "../Scene2D/ScenePoint2D.h"
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26 #include "LinearAlgebra.h"
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27 #include "OrthancDatasets/IDicomDataset.h"
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29 #include <iosfwd>
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31 namespace OrthancStone
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32 {
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33 // Geometry of a 3D plane
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34 class CoordinateSystem3D
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35 {
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36 private:
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37 bool valid_;
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38 Vector origin_;
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39 Vector normal_;
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40 Vector axisX_;
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41 Vector axisY_;
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42 double d_;
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43
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44 void CheckAndComputeNormal();
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45
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46 void Setup(const std::string& imagePositionPatient,
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47 const std::string& imageOrientationPatient);
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48
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49 void SetupCanonical();
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51 double GetOffset() const;
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52
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53 public:
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54 CoordinateSystem3D()
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55 {
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56 SetupCanonical();
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57 }
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58
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59 friend std::ostream& operator<< (std::ostream& s, const CoordinateSystem3D& that);
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61 CoordinateSystem3D(const Vector& origin,
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62 const Vector& axisX,
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63 const Vector& axisY);
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64
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65 CoordinateSystem3D(const std::string& imagePositionPatient,
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66 const std::string& imageOrientationPatient)
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67 {
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68 Setup(imagePositionPatient, imageOrientationPatient);
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69 }
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70
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71 explicit CoordinateSystem3D(const IDicomDataset& dicom);
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72
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73 explicit CoordinateSystem3D(const Orthanc::DicomMap& dicom);
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74
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75 bool IsValid() const
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76 {
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77 return valid_;
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78 }
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79
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80 const Vector& GetNormal() const
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81 {
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82 return normal_;
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83 }
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84
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85 const Vector& GetOrigin() const // This is the "Image Position Patient" tag
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86 {
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87 return origin_;
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88 }
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90 const Vector& GetAxisX() const
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91 {
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92 return axisX_;
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93 }
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94
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95 const Vector& GetAxisY() const
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96 {
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97 return axisY_;
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98 }
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99
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100 void SetOrigin(const Vector& origin);
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101
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102 Vector MapSliceToWorldCoordinates(double x,
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103 double y) const;
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104
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105 Vector MapSliceToWorldCoordinates(const ScenePoint2D& p) const
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106 {
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107 return MapSliceToWorldCoordinates(p.GetX(), p.GetY());
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108 }
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109
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110 double ProjectAlongNormal(const Vector& point) const;
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111
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112 void ProjectPoint(double& offsetX,
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113 double& offsetY,
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114 const Vector& point) const;
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115
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116 ScenePoint2D ProjectPoint(const Vector& point) const
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117 {
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118 double x, y;
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119 ProjectPoint(x, y, point);
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120 return ScenePoint2D(x, y);
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121 }
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122
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123 /*
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124 Alternated faster implementation (untested yet)
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125 */
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126 void ProjectPoint2(double& offsetX,
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127 double& offsetY,
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128 const Vector& point) const;
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129
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130 bool IntersectSegment(Vector& p,
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131 const Vector& edgeFrom,
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132 const Vector& edgeTo) const;
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133
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134 bool IntersectLine(Vector& p,
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135 const Vector& origin,
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136 const Vector& direction) const;
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137
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138 // Point-to-plane distance
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139 double ComputeDistance(const Vector& p) const;
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140
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141 // Returns "false" is the two planes are not parallel
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142 static bool ComputeDistance(double& distance,
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143 const CoordinateSystem3D& a,
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144 const CoordinateSystem3D& b);
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145
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146 // Normalize a cutting plane so that the origin (0,0,0) of the 3D
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147 // world is mapped to the origin of its (x,y) coordinate system
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148 static CoordinateSystem3D NormalizeCuttingPlane(const CoordinateSystem3D& plane);
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149
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150 // Construct one possible coordinate system from the general form
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151 // of the equation of a plane "a*x+b*y+c*z+d=0". Note that the
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152 // axes are not determined in this case, and so they are chosen
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153 // arbitrarily.
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154 static CoordinateSystem3D CreateFromPlaneGeneralForm(double a,
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155 double b,
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156 double c,
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157 double d);
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158
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159 static CoordinateSystem3D CreateFromThreePoints(const Vector& a,
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160 const Vector& b,
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161 const Vector& c);
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162 };
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163 }