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506
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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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510
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42 #include "../../Build/OrthancClient.h"
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506
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43
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44
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45 void Display(OrthancClient::Series& series)
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46 {
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47 /**
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48 * Load the 3D image from Orthanc into VTK.
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49 **/
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50
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51 vtkSmartPointer<vtkImageData> image = vtkSmartPointer<vtkImageData>::New();
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52 image->SetDimensions(series.GetWidth(), series.GetHeight(), series.GetInstanceCount());
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53 image->SetScalarType(VTK_SHORT);
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54 image->AllocateScalars();
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55
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56 if (series.GetWidth() != 0 &&
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57 series.GetHeight() != 0 &&
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58 series.GetInstanceCount() != 0)
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59 {
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60 series.Load3DImage(image->GetScalarPointer(0, 0, 0), Orthanc::PixelFormat_SignedGrayscale16,
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61 2 * series.GetWidth(), 2 * series.GetHeight() * series.GetWidth());
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62 }
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63
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64 image->SetSpacing(series.GetVoxelSizeX(),
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65 series.GetVoxelSizeY(),
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66 series.GetVoxelSizeZ());
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67
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68
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69 /**
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70 * The following code is based on the VTK sample for MIP
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71 * http://www.vtk.org/Wiki/VTK/Examples/Cxx/VolumeRendering/MinIntensityRendering
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72 **/
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73
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74 // Create a transfer function mapping scalar value to opacity
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75 double range[2];
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76 image->GetScalarRange(range);
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77
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78 vtkSmartPointer<vtkPiecewiseFunction> opacityTransfer =
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79 vtkSmartPointer<vtkPiecewiseFunction>::New();
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80 opacityTransfer->AddSegment(range[0], 0.0, range[1], 1.0);
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81
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82 vtkSmartPointer<vtkColorTransferFunction> colorTransfer =
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83 vtkSmartPointer<vtkColorTransferFunction>::New();
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84 colorTransfer->AddRGBPoint(0, 1.0, 1.0, 1.0);
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85 colorTransfer->AddRGBPoint(range[1], 1.0, 1.0, 1.0);
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86
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87 vtkSmartPointer<vtkVolumeProperty> property =
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88 vtkSmartPointer<vtkVolumeProperty>::New();
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89 property->SetScalarOpacity(opacityTransfer);
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90 property->SetColor(colorTransfer);
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91 property->SetInterpolationTypeToLinear();
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92
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93 // Create a Maximum Intensity Projection rendering
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94 vtkSmartPointer<vtkFixedPointVolumeRayCastMapper> mapper =
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95 vtkSmartPointer<vtkFixedPointVolumeRayCastMapper>::New();
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96 mapper->SetBlendModeToMaximumIntensity();
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97 mapper->SetInput(image);
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98
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99 vtkSmartPointer<vtkVolume> volume = vtkSmartPointer<vtkVolume>::New();
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100 volume->SetMapper(mapper);
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101 volume->SetProperty(property);
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102
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103 vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkOpenGLRenderer>::New();
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104 renderer->AddViewProp(volume);
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105 renderer->SetBackground(0.1, 0.2, 0.3); // Background color dark blue
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106
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107 vtkSmartPointer<vtkInteractorStyleTrackballCamera> style =
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108 vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
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109
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110 vtkSmartPointer<vtkRenderWindow> window = vtkSmartPointer<vtkRenderWindow>::New();
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111 window->AddRenderer(renderer);
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112
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113 vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
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114 interactor->SetRenderWindow(window);
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115 interactor->SetInteractorStyle(style);
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116 interactor->Start();
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117 }
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118
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119
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120 int main()
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121 {
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122 try
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123 {
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124 OrthancClient::Initialize("libOrthancCppClient.so");
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125
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126 // Use the commented code below if you know the identifier of a
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127 // series that corresponds to a 3D image.
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128
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129 /*
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130 {
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131 OrthancClient::OrthancConnection orthanc("http://localhost:8042");
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132 OrthancClient::Series series(orthanc, "c1c4cb95-05e3bd11-8da9f5bb-87278f71-0b2b43f5");
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133 Display(series);
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134 return 0;
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135 }
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136 */
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137
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138
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139 // Try and find a 3D image inside the local store
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140 OrthancClient::OrthancConnection orthanc("http://localhost:8042");
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141
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142 printf(">> %d\n", orthanc.GetPatientCount());
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143
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144 for (unsigned int i = 0; i < orthanc.GetPatientCount(); i++)
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145 {
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146 OrthancClient::Patient patient = orthanc.GetPatient(i);
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147 std::cout << "Patient: " << patient.GetId() << std::endl;
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148
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149 for (unsigned int j = 0; j < patient.GetStudyCount(); j++)
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150 {
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151 OrthancClient::Study study = patient.GetStudy(j);
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152 std::cout << " Study: " << study.GetId() << std::endl;
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153
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154 for (unsigned int k = 0; k < study.GetSeriesCount(); k++)
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155 {
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156 OrthancClient::Series series = study.GetSeries(k);
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157 std::cout << " Series: " << series.GetId() << std::endl;
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158
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159 if (series.Is3DImage())
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160 {
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161 Display(series);
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162 return 0;
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163 }
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164 else
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165 {
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166 std::cout << " => Not a 3D image..." << std::endl;
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167 }
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168 }
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169 }
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170 }
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171
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172 std::cout << "Unable to find a 3D image in the local Orthanc store" << std::endl;
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173
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174 return 0;
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175 }
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176 catch (OrthancClient::OrthancClientException e)
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177 {
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178 std::cerr << "EXCEPTION: [" << e.What() << "]" << std::endl;
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179 return -1;
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180 }
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181 }
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