Mercurial > hg > orthanc-stone
annotate Framework/Layers/OrthancFrameLayerSource.cpp @ 66:298f375dcb68 wasm
LayerWidget
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 17 May 2017 22:03:09 +0200 |
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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), |
66 | 68 frame_(frame), |
69 frameWidth_(0), | |
70 frameHeight_(0), | |
71 pixelSpacingX_(1), | |
72 pixelSpacingY_(1), | |
73 observer2_(NULL) | |
74 { | |
75 } | |
76 | |
77 | |
78 void OrthancFrameLayerSource::StartInternal() | |
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79 { |
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80 orthanc_.ScheduleGetRequest(*this, |
66 | 81 "/instances/" + instanceId_ + "/tags", |
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82 new Operation(Content_Tags)); |
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83 } |
66 | 84 |
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85 |
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86 void OrthancFrameLayerSource::SetObserver(IObserver& observer) |
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87 { |
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88 LayerSourceBase::SetObserver(observer); |
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89 |
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90 if (dataset_.get() != NULL) |
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91 { |
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92 NotifySourceChange(); |
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93 } |
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94 } |
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95 |
66 | 96 |
97 void OrthancFrameLayerSource::SetObserver(IVolumeSlicesObserver& observer) | |
98 { | |
99 if (IsStarted()) | |
100 { | |
101 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
102 } | |
103 | |
104 if (observer2_ == NULL) | |
105 { | |
106 observer2_ = &observer; | |
107 } | |
108 else | |
109 { | |
110 // Cannot add more than one observer | |
111 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
112 } | |
113 } | |
114 | |
115 | |
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116 void OrthancFrameLayerSource::NotifyError(const std::string& uri, |
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117 Orthanc::IDynamicObject* payload) |
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118 { |
66 | 119 std::auto_ptr<Operation> operation(reinterpret_cast<Operation*>(payload)); |
120 | |
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121 LOG(ERROR) << "Cannot download " << uri; |
66 | 122 NotifyLayerError(operation->GetViewportSlice()); |
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123 } |
66 | 124 |
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125 |
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126 void OrthancFrameLayerSource::NotifySuccess(const std::string& uri, |
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127 const void* answer, |
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128 size_t answerSize, |
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129 Orthanc::IDynamicObject* payload) |
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130 { |
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131 std::auto_ptr<Operation> operation(reinterpret_cast<Operation*>(payload)); |
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132 |
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133 if (operation.get() == NULL) |
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134 { |
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135 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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136 } |
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137 else if (operation->GetContent() == Content_Tags) |
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138 { |
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139 dataset_.reset(new OrthancPlugins::FullOrthancDataset(answer, answerSize)); |
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140 |
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141 DicomFrameConverter converter; |
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142 converter.ReadParameters(*dataset_); |
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143 format_ = converter.GetExpectedPixelFormat(); |
66 | 144 GeometryToolbox::GetPixelSpacing(pixelSpacingX_, pixelSpacingY_, *dataset_); |
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145 |
66 | 146 OrthancPlugins::DicomDatasetReader reader(*dataset_); |
147 if (!reader.GetUnsignedIntegerValue(frameWidth_, OrthancPlugins::DICOM_TAG_COLUMNS) || | |
148 !reader.GetUnsignedIntegerValue(frameHeight_, OrthancPlugins::DICOM_TAG_ROWS)) | |
149 { | |
150 frameWidth_ = 0; | |
151 frameHeight_ = 0; | |
152 LOG(WARNING) << "Missing tags in a DICOM image: Columns or Rows"; | |
153 } | |
154 | |
155 if (observer2_ != NULL) | |
156 { | |
157 ParallelSlices slices; | |
158 slices.AddSlice(SliceGeometry(*dataset_)); | |
159 observer2_->NotifySlicesAvailable(slices); | |
160 } | |
161 | |
162 NotifyGeometryReady(); | |
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163 } |
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164 else if (operation->GetContent() == Content_Frame) |
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165 { |
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166 std::auto_ptr<Orthanc::PngReader> image(new Orthanc::PngReader); |
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167 image->ReadFromMemory(answer, answerSize); |
66 | 168 |
169 bool ok = (image->GetWidth() == frameWidth_ || | |
170 image->GetHeight() == frameHeight_); | |
171 | |
172 if (ok && | |
173 format_ == Orthanc::PixelFormat_SignedGrayscale16) | |
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174 { |
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175 if (image->GetFormat() == Orthanc::PixelFormat_Grayscale16) |
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176 { |
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177 image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16); |
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178 } |
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179 else |
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180 { |
66 | 181 ok = false; |
65
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182 } |
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183 } |
66 | 184 |
185 if (ok) | |
186 { | |
187 SliceGeometry frameSlice(*dataset_); | |
188 NotifyLayerReady(FrameRenderer::CreateRenderer(image.release(), | |
189 operation->GetViewportSlice(), | |
190 frameSlice, *dataset_, | |
191 pixelSpacingX_, pixelSpacingY_, true), | |
192 operation->GetViewportSlice()); | |
193 } | |
194 else | |
195 { | |
196 NotifyLayerError(operation->GetViewportSlice()); | |
197 } | |
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198 } |
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199 else |
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200 { |
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201 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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202 } |
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203 } |
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204 |
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205 |
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206 bool OrthancFrameLayerSource::GetExtent(double& x1, |
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207 double& y1, |
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208 double& x2, |
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209 double& y2, |
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210 const SliceGeometry& viewportSlice /* ignored */) |
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211 { |
66 | 212 if (!IsStarted() || |
213 dataset_.get() == NULL) | |
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214 { |
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215 return false; |
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216 } |
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217 else |
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218 { |
66 | 219 SliceGeometry frameSlice(*dataset_); |
220 return FrameRenderer::ComputeFrameExtent(x1, y1, x2, y2, | |
221 viewportSlice, frameSlice, | |
222 frameWidth_, frameHeight_, | |
223 pixelSpacingX_, pixelSpacingY_); | |
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224 } |
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225 } |
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226 |
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227 |
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228 void OrthancFrameLayerSource::ScheduleLayerCreation(const SliceGeometry& viewportSlice) |
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229 { |
66 | 230 if (!IsStarted()) |
231 { | |
232 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
233 } | |
234 | |
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235 if (dataset_.get() == NULL) |
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236 { |
66 | 237 NotifyLayerError(viewportSlice); |
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238 } |
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239 else |
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240 { |
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241 std::string uri = ("/instances/" + instanceId_ + "/frames/" + |
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242 boost::lexical_cast<std::string>(frame_)); |
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243 |
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244 std::string compressed; |
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245 |
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246 switch (format_) |
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247 { |
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248 case Orthanc::PixelFormat_RGB24: |
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249 uri += "/preview"; |
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250 break; |
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251 |
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252 case Orthanc::PixelFormat_Grayscale16: |
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253 uri += "/image-uint16"; |
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254 break; |
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255 |
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256 case Orthanc::PixelFormat_SignedGrayscale16: |
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257 uri += "/image-int16"; |
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258 break; |
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259 |
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260 default: |
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261 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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262 } |
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263 |
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264 std::auto_ptr<Operation> operation(new Operation(Content_Frame)); |
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265 operation->SetViewportSlice(viewportSlice); |
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266 orthanc_.ScheduleGetRequest(*this, uri, operation.release()); |
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267 } |
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268 } |
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269 } |