annotate Framework/Layers/SeriesFrameRendererFactory.cpp @ 550:01c4b4583cc1 ct-pet-dose-struct

Close branch ct-pet-dose-struct
author Benjamin Golinvaux <bgo@osimis.io>
date Tue, 02 Apr 2019 14:02:12 +0000
parents b70e9be013e4
children 4f2416d519b4
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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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22 #include "SeriesFrameRendererFactory.h"
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24 #include "FrameRenderer.h"
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26 #include <OrthancException.h>
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27 #include <Logging.h>
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28 #include <Toolbox.h>
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29 #include <Plugins/Samples/Common/OrthancPluginException.h>
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30 #include <Plugins/Samples/Common/DicomDatasetReader.h>
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31
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33 namespace OrthancStone
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34 {
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35 void SeriesFrameRendererFactory::ReadCurrentFrameDataset(size_t frame)
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36 {
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37 if (currentDataset_.get() != NULL &&
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38 (fast_ || currentFrame_ == frame))
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39 {
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40 // The frame has not changed since the previous call, no need to
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41 // update the DICOM dataset
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42 return;
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43 }
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45 currentDataset_.reset(loader_->DownloadDicom(frame));
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46 currentFrame_ = frame;
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47
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48 if (currentDataset_.get() == NULL)
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49 {
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50 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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51 }
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52 }
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55 void SeriesFrameRendererFactory::GetCurrentPixelSpacing(double& spacingX,
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56 double& spacingY) const
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57 {
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58 if (currentDataset_.get() == NULL)
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59 {
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60 // There was no previous call "ReadCurrentFrameDataset()"
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61 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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62 }
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63
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64 GeometryToolbox::GetPixelSpacing(spacingX, spacingY, *currentDataset_);
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65 }
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68 double SeriesFrameRendererFactory::GetCurrentSliceThickness() const
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69 {
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70 if (currentDataset_.get() == NULL)
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71 {
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72 // There was no previous call "ReadCurrentFrameDataset()"
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73 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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74 }
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76 try
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77 {
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78 OrthancPlugins::DicomDatasetReader reader(*currentDataset_);
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80 double thickness;
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81 if (reader.GetDoubleValue(thickness, OrthancPlugins::DICOM_TAG_SLICE_THICKNESS))
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82 {
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83 return thickness;
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84 }
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85 }
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86 catch (ORTHANC_PLUGINS_EXCEPTION_CLASS& e)
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87 {
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88 }
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89
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90 // Some arbitrary large slice thickness
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91 return std::numeric_limits<double>::infinity();
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92 }
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93
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94
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95 SeriesFrameRendererFactory::SeriesFrameRendererFactory(ISeriesLoader* loader, // Takes ownership
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96 bool fast) :
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97 loader_(loader),
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98 currentFrame_(0),
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99 fast_(fast)
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100 {
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101 if (loader == NULL)
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102 {
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103 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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104 }
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105 }
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106
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107
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108 bool SeriesFrameRendererFactory::GetExtent(double& x1,
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109 double& y1,
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110 double& x2,
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111 double& y2,
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112 const SliceGeometry& viewportSlice)
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113 {
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114 if (currentDataset_.get() == NULL)
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115 {
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116 // There has been no previous call to
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117 // "CreateLayerRenderer". Read some arbitrary DICOM frame, the
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118 // one at the middle of the series.
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119 unsigned int depth = loader_->GetGeometry().GetSliceCount();
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120 ReadCurrentFrameDataset(depth / 2);
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121 }
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122
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123 double spacingX, spacingY;
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124 GetCurrentPixelSpacing(spacingX, spacingY);
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125
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126 return FrameRenderer::ComputeFrameExtent(x1, y1, x2, y2,
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127 viewportSlice,
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128 loader_->GetGeometry().GetSlice(0),
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129 loader_->GetWidth(),
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130 loader_->GetHeight(),
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131 spacingX, spacingY);
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132 }
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133
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134
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135 ILayerRenderer* SeriesFrameRendererFactory::CreateLayerRenderer(const SliceGeometry& viewportSlice)
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136 {
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137 size_t closest;
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138 double distance;
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139
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140 bool isOpposite;
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141 if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, loader_->GetGeometry().GetNormal(), viewportSlice.GetNormal()) ||
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142 !loader_->GetGeometry().ComputeClosestSlice(closest, distance, viewportSlice.GetOrigin()))
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143 {
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144 // Unable to compute the slice in the series that is the
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145 // closest to the slice displayed by the viewport
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146 return NULL;
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147 }
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148
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149 ReadCurrentFrameDataset(closest);
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150 assert(currentDataset_.get() != NULL);
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151
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152 double spacingX, spacingY;
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153 GetCurrentPixelSpacing(spacingX, spacingY);
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154
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155 if (distance <= GetCurrentSliceThickness() / 2.0)
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156 {
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157 SliceGeometry frameSlice(*currentDataset_);
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158 return FrameRenderer::CreateRenderer(loader_->DownloadFrame(closest),
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159 frameSlice,
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160 *currentDataset_,
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161 spacingX, spacingY,
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162 true);
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163 }
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164 else
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165 {
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166 // The closest slice of the series is too far away from the
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167 // slice displayed by the viewport
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168 return NULL;
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169 }
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170 }
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171
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172
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173 ISliceableVolume& SeriesFrameRendererFactory::GetSourceVolume() const
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174 {
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175 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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176 }
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177 }