481
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * Permission is hereby granted, free of charge, to any person
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7 * obtaining a copy of this software and associated documentation
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8 * files (the "Software"), to deal in the Software without
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9 * restriction, including without limitation the rights to use, copy,
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10 * modify, merge, publish, distribute, sublicense, and/or sell copies
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11 * of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be
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15 * included in all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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21 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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22 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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24 * SOFTWARE.
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25 **/
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26
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27
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28 #include <iostream>
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29
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30 #include <vtkRenderWindow.h>
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31 #include <vtkImageData.h>
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32 #include <vtkPiecewiseFunction.h>
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33 #include <vtkFixedPointVolumeRayCastMapper.h>
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34 #include <vtkColorTransferFunction.h>
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35 #include <vtkVolumeProperty.h>
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36 #include <vtkRenderWindowInteractor.h>
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37 #include <vtkRenderer.h>
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38 #include <vtkSmartPointer.h>
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39 #include <vtkOpenGLRenderer.h>
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40 #include <vtkInteractorStyleTrackballCamera.h>
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41
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42 #include "../../../../OrthancCppClient/OrthancConnection.h"
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43
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44
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45 class DisplayProgress : public Orthanc::ThreadedCommandProcessor::IListener
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46 {
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47 public:
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48 virtual void SignalProgress(unsigned int current,
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49 unsigned int total)
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50 {
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51 std::cout << "Slice loaded (" << current << "/" << total << ")" << std::endl;
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52 }
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53
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54 virtual void SignalSuccess(unsigned int total)
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55 {
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56 std::cout << "Success loading image (" << total << " images)" << std::endl;
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57 }
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58
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59 virtual void SignalCancel()
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60 {
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61 }
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62
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63 virtual void SignalFailure()
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64 {
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65 std::cout << "Error loading image" << std::endl;
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66 }
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67 };
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68
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69
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70
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71 void Display(OrthancClient::Series& series)
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72 {
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73 /**
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74 * Load the 3D image from Orthanc into VTK.
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75 **/
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76
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77 vtkSmartPointer<vtkImageData> image = vtkSmartPointer<vtkImageData>::New();
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78 image->SetDimensions(series.GetWidth(), series.GetHeight(), series.GetInstanceCount());
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79 image->SetScalarType(VTK_SHORT);
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80 image->AllocateScalars();
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81
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82 if (series.GetWidth() != 0 &&
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83 series.GetHeight() != 0 &&
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84 series.GetInstanceCount() != 0)
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85 {
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86 DisplayProgress listener;
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87 series.Load3DImage(image->GetScalarPointer(0, 0, 0), Orthanc::PixelFormat_SignedGrayscale16,
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88 2 * series.GetWidth(), 2 * series.GetHeight() * series.GetWidth(), listener);
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89 }
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90
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91 float sx, sy, sz;
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92 series.GetVoxelSize(sx, sy, sz);
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93 image->SetSpacing(sx, sy, sz);
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94
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95
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96 /**
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97 * The following code is based on the VTK sample for MIP
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98 * http://www.vtk.org/Wiki/VTK/Examples/Cxx/VolumeRendering/MinIntensityRendering
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99 **/
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100
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101 // Create a transfer function mapping scalar value to opacity
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102 double range[2];
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103 image->GetScalarRange(range);
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104
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105 vtkSmartPointer<vtkPiecewiseFunction> opacityTransfer =
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106 vtkSmartPointer<vtkPiecewiseFunction>::New();
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107 opacityTransfer->AddSegment(range[0], 0.0, range[1], 1.0);
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108
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109 vtkSmartPointer<vtkColorTransferFunction> colorTransfer =
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110 vtkSmartPointer<vtkColorTransferFunction>::New();
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111 colorTransfer->AddRGBPoint(0, 1.0, 1.0, 1.0);
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112 colorTransfer->AddRGBPoint(range[1], 1.0, 1.0, 1.0);
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113
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114 vtkSmartPointer<vtkVolumeProperty> property =
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115 vtkSmartPointer<vtkVolumeProperty>::New();
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116 property->SetScalarOpacity(opacityTransfer);
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117 property->SetColor(colorTransfer);
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118 property->SetInterpolationTypeToLinear();
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119
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120 // Create a Maximum Intensity Projection rendering
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121 vtkSmartPointer<vtkFixedPointVolumeRayCastMapper> mapper =
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122 vtkSmartPointer<vtkFixedPointVolumeRayCastMapper>::New();
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123 mapper->SetBlendModeToMaximumIntensity();
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124 mapper->SetInput(image);
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125
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126 vtkSmartPointer<vtkVolume> volume = vtkSmartPointer<vtkVolume>::New();
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127 volume->SetMapper(mapper);
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128 volume->SetProperty(property);
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129
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130 vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkOpenGLRenderer>::New();
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131 renderer->AddViewProp(volume);
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132 renderer->SetBackground(0.1, 0.2, 0.3); // Background color dark blue
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133
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134 vtkSmartPointer<vtkInteractorStyleTrackballCamera> style =
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135 vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
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136
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137 vtkSmartPointer<vtkRenderWindow> window = vtkSmartPointer<vtkRenderWindow>::New();
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138 window->AddRenderer(renderer);
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139
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140 vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
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141 interactor->SetRenderWindow(window);
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142 interactor->SetInteractorStyle(style);
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143 interactor->Start();
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144 }
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145
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146
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147 int main()
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148 {
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149 // Try and find a 3D image inside the local store
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150 OrthancClient::OrthancConnection orthanc("http://localhost:8042");
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151
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152 for (unsigned int i = 0; i < orthanc.GetPatientCount(); i++)
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153 {
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154 OrthancClient::Patient& patient = orthanc.GetPatient(i);
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155 std::cout << "Patient: " << patient.GetId() << std::endl;
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156
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157 for (unsigned int j = 0; j < patient.GetStudyCount(); j++)
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158 {
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159 OrthancClient::Study& study = patient.GetStudy(j);
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160 std::cout << " Study: " << study.GetId() << std::endl;
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161
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162 for (unsigned int k = 0; k < study.GetSeriesCount(); k++)
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163 {
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164 OrthancClient::Series& series = study.GetSeries(k);
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165 std::cout << " Series: " << series.GetId() << std::endl;
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166
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167 if (series.Is3DImage())
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168 {
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169 Display(series);
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170 return 0;
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171 }
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172 else
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173 {
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174 std::cout << " => Not a 3D image..." << std::endl;
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175 }
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176 }
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177 }
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178 }
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179
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180 std::cout << "Unable to find a 3D image in the local Orthanc store" << std::endl;
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181
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182 return 0;
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183 }
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