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annotate UnitTestsSources/VolumeRenderingTests.cpp @ 1778:de5c965f0697

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simplifying test VolumeRendering.Axial
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 14 May 2021 09:33:42 +0200
parents fca942f4b4a7
children 9ab251c03eda
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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 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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22 #include "../OrthancStone/Sources/Scene2D/CairoCompositor.h"
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23 #include "../OrthancStone/Sources/Scene2D/CopyStyleConfigurator.h"
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24 #include "../OrthancStone/Sources/Scene2D/ColorTextureSceneLayer.h"
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25 #include "../OrthancStone/Sources/Volumes/DicomVolumeImageMPRSlicer.h"
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26 #include "../OrthancStone/Sources/Volumes/DicomVolumeImageReslicer.h"
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27
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28 #include <Images/ImageTraits.h>
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29 #include <OrthancException.h>
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30
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31 #include <gtest/gtest.h>
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33
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34 static float GetPixelValue(const Orthanc::ImageAccessor& image,
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35 unsigned int x,
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36 unsigned int y)
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37 {
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38 switch (image.GetFormat())
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39 {
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40 case Orthanc::PixelFormat_Grayscale8:
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41 return Orthanc::ImageTraits<Orthanc::PixelFormat_Grayscale8>::GetFloatPixel(image, x, y);
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42
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43 case Orthanc::PixelFormat_Float32:
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44 return Orthanc::ImageTraits<Orthanc::PixelFormat_Float32>::GetFloatPixel(image, x, y);
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45
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46 case Orthanc::PixelFormat_RGB24:
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47 {
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48 Orthanc::PixelTraits<Orthanc::PixelFormat_RGB24>::PixelType pixel;
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49 Orthanc::ImageTraits<Orthanc::PixelFormat_RGB24>::GetPixel(pixel, image, x, y);
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50 return pixel.red_;
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51 }
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52
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53 case Orthanc::PixelFormat_BGRA32:
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54 {
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55 Orthanc::PixelTraits<Orthanc::PixelFormat_BGRA32>::PixelType pixel;
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56 Orthanc::ImageTraits<Orthanc::PixelFormat_BGRA32>::GetPixel(pixel, image, x, y);
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57 return pixel.red_;
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58 }
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59
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60 default:
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61 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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62 }
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63 }
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64
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65
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66 static bool IsConstImage(float value,
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67 const Orthanc::ImageAccessor& image)
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68 {
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69 for (unsigned int y = 0; y < image.GetHeight(); y++)
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70 {
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71 for (unsigned int x = 0; x < image.GetWidth(); x++)
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72 {
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73 if (!OrthancStone::LinearAlgebra::IsNear(value, GetPixelValue(image, x, y)))
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74 {
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75 return false;
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76 }
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77 }
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78 }
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79
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80 return true;
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81 }
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82
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83
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84 static bool IsConstRegion(float value,
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85 const Orthanc::ImageAccessor& image,
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86 unsigned int x,
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87 unsigned int y,
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88 unsigned int width,
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89 unsigned int height)
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90 {
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91 Orthanc::ImageAccessor region;
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92 image.GetRegion(region, x, y, width, height);
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93 return IsConstImage(value, region);
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94 }
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95
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96
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97 TEST(VolumeRendering, Axial)
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98 {
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99 Orthanc::DicomMap dicom;
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100 dicom.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "study", false);
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101 dicom.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "series", false);
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102 dicom.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop", false);
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103
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104 OrthancStone::CoordinateSystem3D axial(OrthancStone::LinearAlgebra::CreateVector(-0.5, -0.5, 0),
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105 OrthancStone::LinearAlgebra::CreateVector(1, 0, 0),
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106 OrthancStone::LinearAlgebra::CreateVector(0, 1, 0));
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107
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108 OrthancStone::VolumeImageGeometry geometry;
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109 geometry.SetSizeInVoxels(3, 3, 1);
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110 geometry.SetAxialGeometry(axial);
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111
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112 boost::shared_ptr<OrthancStone::DicomVolumeImage> volume(new OrthancStone::DicomVolumeImage);
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113 volume->Initialize(geometry, Orthanc::PixelFormat_Grayscale8, false);
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114 volume->SetDicomParameters(OrthancStone::DicomInstanceParameters(dicom));
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115
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116 {
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117 OrthancStone::ImageBuffer3D::SliceWriter writer(volume->GetPixelData(), OrthancStone::VolumeProjection_Axial, 0);
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118 unsigned int v = 0;
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119 for (unsigned int y = 0; y < writer.GetAccessor().GetHeight(); y++)
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120 {
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121 uint8_t *p = reinterpret_cast<uint8_t*>(writer.GetAccessor().GetRow(y));
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122 for (unsigned int x = 0; x < writer.GetAccessor().GetWidth(); x++, p++)
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123 {
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124 *p = v;
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125 v += 25;
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126 }
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127 }
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128 }
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129
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130 OrthancStone::Vector v = volume->GetGeometry().GetVoxelDimensions(OrthancStone::VolumeProjection_Axial);
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131 ASSERT_FLOAT_EQ(1, v[0]);
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132 ASSERT_FLOAT_EQ(1, v[1]);
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133 ASSERT_FLOAT_EQ(1, v[2]);
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134
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135 OrthancStone::CoordinateSystem3D viewpoint;
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136
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137 for (unsigned int mode = 0; mode < 2; mode++)
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138 {
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139 std::unique_ptr<OrthancStone::IVolumeSlicer> slicer;
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140
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141 if (mode == 1)
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142 {
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143 slicer.reset(new OrthancStone::DicomVolumeImageReslicer(volume));
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144 }
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145 else
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146 {
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147 slicer.reset(new OrthancStone::DicomVolumeImageMPRSlicer(volume));
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148 }
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149
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150 std::unique_ptr<OrthancStone::IVolumeSlicer::IExtractedSlice> slice(slicer->ExtractSlice(viewpoint));
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151 ASSERT_TRUE(slice->IsValid());
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152
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153 OrthancStone::CopyStyleConfigurator configurator;
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154 std::unique_ptr<OrthancStone::ISceneLayer> layer(slice->CreateSceneLayer(&configurator, viewpoint));
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155
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156 ASSERT_EQ(OrthancStone::ISceneLayer::Type_FloatTexture, layer->GetType());
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157
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158 OrthancStone::Extent2D box;
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159 layer->GetBoundingBox(box);
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160 ASSERT_FLOAT_EQ(-1.0f, box.GetX1());
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161 ASSERT_FLOAT_EQ(-1.0f, box.GetY1());
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162 ASSERT_FLOAT_EQ(2.0f, box.GetX2());
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163 ASSERT_FLOAT_EQ(2.0f, box.GetY2());
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164
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165 {
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166 const Orthanc::ImageAccessor& texture = dynamic_cast<OrthancStone::TextureBaseSceneLayer&>(*layer).GetTexture();
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167 ASSERT_EQ(3u, texture.GetWidth());
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168 ASSERT_EQ(3u, texture.GetHeight());
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169 ASSERT_FLOAT_EQ(0, GetPixelValue(texture, 0, 0));
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170 ASSERT_FLOAT_EQ(25, GetPixelValue(texture, 1, 0));
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171 ASSERT_FLOAT_EQ(50, GetPixelValue(texture, 2, 0));
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172 ASSERT_FLOAT_EQ(75, GetPixelValue(texture, 0, 1));
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173 ASSERT_FLOAT_EQ(100, GetPixelValue(texture, 1, 1));
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174 ASSERT_FLOAT_EQ(125, GetPixelValue(texture, 2, 1));
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175 ASSERT_FLOAT_EQ(150, GetPixelValue(texture, 0, 2));
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176 ASSERT_FLOAT_EQ(175, GetPixelValue(texture, 1, 2));
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177 ASSERT_FLOAT_EQ(200, GetPixelValue(texture, 2, 2));
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178 }
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179
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180 OrthancStone::Scene2D scene; // Scene is initialized with the identity viewpoint
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181 scene.SetLayer(0, layer.release());
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182
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183 OrthancStone::CairoCompositor compositor(5, 5);
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184 compositor.Refresh(scene);
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185
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186 Orthanc::ImageAccessor rendered;
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187 compositor.GetCanvas().GetReadOnlyAccessor(rendered);
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188
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189 ASSERT_EQ(5u, rendered.GetWidth());
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190 ASSERT_EQ(5u, rendered.GetHeight());
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191 ASSERT_EQ(0, GetPixelValue(rendered, 0, 0));
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192 ASSERT_EQ(0, GetPixelValue(rendered, 1, 0));
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193 ASSERT_EQ(0, GetPixelValue(rendered, 2, 0));
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194 ASSERT_EQ(0, GetPixelValue(rendered, 3, 0));
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195 ASSERT_EQ(0, GetPixelValue(rendered, 4, 0));
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196 ASSERT_EQ(0, GetPixelValue(rendered, 0, 1));
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197 ASSERT_EQ(0, GetPixelValue(rendered, 1, 1));
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198 ASSERT_EQ(0, GetPixelValue(rendered, 2, 1));
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199 ASSERT_EQ(0, GetPixelValue(rendered, 3, 1));
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200 ASSERT_EQ(0, GetPixelValue(rendered, 4, 1));
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201 ASSERT_EQ(0, GetPixelValue(rendered, 0, 2));
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202 ASSERT_EQ(0, GetPixelValue(rendered, 1, 2));
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203 ASSERT_EQ(0, GetPixelValue(rendered, 2, 2));
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204 ASSERT_EQ(25, GetPixelValue(rendered, 3, 2));
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205 ASSERT_EQ(50, GetPixelValue(rendered, 4, 2));
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206 ASSERT_EQ(0, GetPixelValue(rendered, 0, 3));
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207 ASSERT_EQ(0, GetPixelValue(rendered, 1, 3));
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208 ASSERT_EQ(75, GetPixelValue(rendered, 2, 3));
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209 ASSERT_EQ(100, GetPixelValue(rendered, 3, 3));
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210 ASSERT_EQ(125, GetPixelValue(rendered, 4, 3));
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211 ASSERT_EQ(0, GetPixelValue(rendered, 0, 4));
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212 ASSERT_EQ(0, GetPixelValue(rendered, 1, 4));
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213 ASSERT_EQ(150, GetPixelValue(rendered, 2, 4));
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214 ASSERT_EQ(175, GetPixelValue(rendered, 3, 4));
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215 ASSERT_EQ(200, GetPixelValue(rendered, 4, 4));
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216 }
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217 }