Mercurial > hg > orthanc-stone
annotate Framework/Layers/OrthancFrameLayerSource.cpp @ 65:885932a893de wasm
OrthancFrameLayerSource
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 16 May 2017 22:12:41 +0200 |
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children | 298f375dcb68 |
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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 Osimis, 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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21 |
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22 #include "OrthancFrameLayerSource.h" |
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23 |
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24 #include "FrameRenderer.h" |
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25 #include "../../Resources/Orthanc/Core/Images/PngReader.h" |
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26 #include "../../Resources/Orthanc/Core/Logging.h" |
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27 #include "../../Resources/Orthanc/Core/OrthancException.h" |
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28 #include "../Toolbox/DicomFrameConverter.h" |
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29 |
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30 #include <boost/lexical_cast.hpp> |
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31 |
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32 |
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33 namespace OrthancStone |
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34 { |
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35 class OrthancFrameLayerSource::Operation : public Orthanc::IDynamicObject |
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36 { |
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37 private: |
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38 Content content_; |
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39 SliceGeometry viewportSlice_; |
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40 |
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41 public: |
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42 Operation(Content content) : content_(content) |
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43 { |
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44 } |
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45 |
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46 void SetViewportSlice(const SliceGeometry& slice) |
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47 { |
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48 viewportSlice_ = slice; |
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49 } |
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50 |
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51 const SliceGeometry& GetViewportSlice() const |
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52 { |
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53 return viewportSlice_; |
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54 } |
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55 |
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56 Content GetContent() const |
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57 { |
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58 return content_; |
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59 } |
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60 }; |
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61 |
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62 |
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63 OrthancFrameLayerSource::OrthancFrameLayerSource(IWebService& orthanc, |
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64 const std::string& instanceId, |
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65 unsigned int frame) : |
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66 orthanc_(orthanc), |
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67 instanceId_(instanceId), |
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68 frame_(frame) |
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69 { |
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70 orthanc_.ScheduleGetRequest(*this, |
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71 "/instances/" + instanceId + "/tags", |
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72 new Operation(Content_Tags)); |
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73 } |
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74 |
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75 |
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76 void OrthancFrameLayerSource::SetObserver(IObserver& observer) |
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77 { |
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78 LayerSourceBase::SetObserver(observer); |
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79 |
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80 if (dataset_.get() != NULL) |
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81 { |
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82 NotifySourceChange(); |
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83 } |
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84 } |
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85 |
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86 void OrthancFrameLayerSource::NotifyError(const std::string& uri, |
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87 Orthanc::IDynamicObject* payload) |
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88 { |
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89 LOG(ERROR) << "Cannot download " << uri; |
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90 } |
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91 |
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92 void OrthancFrameLayerSource::NotifySuccess(const std::string& uri, |
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93 const void* answer, |
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94 size_t answerSize, |
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95 Orthanc::IDynamicObject* payload) |
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96 { |
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97 std::auto_ptr<Operation> operation(reinterpret_cast<Operation*>(payload)); |
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98 |
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99 if (operation.get() == NULL) |
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100 { |
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101 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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102 } |
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103 else if (operation->GetContent() == Content_Tags) |
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104 { |
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105 dataset_.reset(new OrthancPlugins::FullOrthancDataset(answer, answerSize)); |
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106 |
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107 DicomFrameConverter converter; |
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108 converter.ReadParameters(*dataset_); |
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109 format_ = converter.GetExpectedPixelFormat(); |
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110 |
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111 NotifySourceChange(); |
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112 } |
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113 else if (operation->GetContent() == Content_Frame) |
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114 { |
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115 std::auto_ptr<Orthanc::PngReader> image(new Orthanc::PngReader); |
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116 image->ReadFromMemory(answer, answerSize); |
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117 |
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118 if (format_ == Orthanc::PixelFormat_SignedGrayscale16) |
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119 { |
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120 if (image->GetFormat() == Orthanc::PixelFormat_Grayscale16) |
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121 { |
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122 image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16); |
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123 } |
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124 else |
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125 { |
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126 NotifyLayerReady(NULL, *this, operation->GetViewportSlice()); |
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127 } |
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128 } |
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129 |
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130 SliceGeometry frameSlice(*dataset_); |
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131 NotifyLayerReady(FrameRenderer::CreateRenderer(image.release(), |
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132 operation->GetViewportSlice(), |
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133 frameSlice, *dataset_, 1, 1, true), |
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134 *this, operation->GetViewportSlice()); |
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135 } |
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136 else |
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137 { |
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138 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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139 } |
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140 } |
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141 |
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142 |
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143 bool OrthancFrameLayerSource::GetExtent(double& x1, |
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144 double& y1, |
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145 double& x2, |
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146 double& y2, |
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147 const SliceGeometry& viewportSlice /* ignored */) |
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148 { |
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149 if (dataset_.get() == NULL) |
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150 { |
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151 return false; |
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152 } |
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153 else |
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154 { |
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155 // Assume that PixelSpacingX == PixelSpacingY == 1 |
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156 |
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157 OrthancPlugins::DicomDatasetReader reader(*dataset_); |
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158 |
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159 unsigned int width, height; |
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160 |
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161 if (!reader.GetUnsignedIntegerValue(width, OrthancPlugins::DICOM_TAG_COLUMNS) || |
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162 !reader.GetUnsignedIntegerValue(height, OrthancPlugins::DICOM_TAG_ROWS)) |
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163 { |
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164 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); |
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165 } |
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166 |
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167 x1 = 0; |
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168 y1 = 0; |
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169 x2 = static_cast<double>(width); |
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170 y2 = static_cast<double>(height); |
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171 |
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172 return true; |
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173 } |
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174 } |
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175 |
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176 |
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177 void OrthancFrameLayerSource::ScheduleLayerCreation(const SliceGeometry& viewportSlice) |
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178 { |
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179 if (dataset_.get() == NULL) |
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180 { |
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181 NotifyLayerReady(NULL, *this, viewportSlice); |
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182 } |
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183 else |
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184 { |
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185 std::string uri = ("/instances/" + instanceId_ + "/frames/" + |
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186 boost::lexical_cast<std::string>(frame_)); |
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187 |
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188 std::string compressed; |
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189 |
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190 switch (format_) |
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191 { |
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192 case Orthanc::PixelFormat_RGB24: |
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193 uri += "/preview"; |
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194 break; |
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195 |
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196 case Orthanc::PixelFormat_Grayscale16: |
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197 uri += "/image-uint16"; |
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198 break; |
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199 |
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200 case Orthanc::PixelFormat_SignedGrayscale16: |
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201 uri += "/image-int16"; |
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202 break; |
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203 |
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204 default: |
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205 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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206 } |
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207 |
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208 std::auto_ptr<Operation> operation(new Operation(Content_Frame)); |
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209 operation->SetViewportSlice(viewportSlice); |
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210 orthanc_.ScheduleGetRequest(*this, uri, operation.release()); |
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211 } |
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212 } |
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213 } |