Mercurial > hg > orthanc-stone
annotate Framework/dev.h @ 378:814fa32e2fcc
refactoring
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 06 Nov 2018 14:21:02 +0100 |
parents | 7a364e44fbb4 |
children | ba5ad93f935a |
rev | line source |
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102 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
102 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
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16 * |
102 | 17 * You should have received a copy of the GNU Affero General Public License |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #pragma once | |
23 | |
24 #include "Layers/FrameRenderer.h" | |
25 #include "Layers/LayerSourceBase.h" | |
26 #include "Layers/SliceOutlineRenderer.h" | |
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27 #include "Layers/LineLayerRenderer.h" |
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28 #include "Widgets/LayerWidget.h" |
102 | 29 #include "Toolbox/DownloadStack.h" |
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30 #include "Toolbox/GeometryToolbox.h" |
102 | 31 #include "Toolbox/OrthancSlicesLoader.h" |
32 #include "Volumes/ImageBuffer3D.h" | |
33 #include "Volumes/SlicedVolumeBase.h" | |
34 | |
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35 #include <Core/Logging.h> |
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36 #include <Core/Images/ImageProcessing.h> |
102 | 37 |
38 #include <boost/math/special_functions/round.hpp> | |
39 | |
40 | |
41 namespace OrthancStone | |
42 { | |
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43 // TODO: Handle errors while loading |
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44 class OrthancVolumeImage : |
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45 public SlicedVolumeBase, |
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46 public OrthancStone::IObserver |
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47 { |
102 | 48 private: |
49 OrthancSlicesLoader loader_; | |
50 std::auto_ptr<ImageBuffer3D> image_; | |
51 std::auto_ptr<DownloadStack> downloadStack_; | |
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52 bool computeRange_; |
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53 size_t pendingSlices_; |
102 | 54 |
55 void ScheduleSliceDownload() | |
56 { | |
57 assert(downloadStack_.get() != NULL); | |
58 | |
59 unsigned int slice; | |
60 if (downloadStack_->Pop(slice)) | |
61 { | |
62 loader_.ScheduleLoadSliceImage(slice, SliceImageQuality_Jpeg90); | |
63 } | |
64 } | |
65 | |
66 | |
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67 static bool IsCompatible(const Slice& a, |
102 | 68 const Slice& b) |
69 { | |
70 if (!GeometryToolbox::IsParallel(a.GetGeometry().GetNormal(), | |
71 b.GetGeometry().GetNormal())) | |
72 { | |
73 LOG(ERROR) << "Some slice in the volume image is not parallel to the others"; | |
74 return false; | |
75 } | |
76 | |
77 if (a.GetConverter().GetExpectedPixelFormat() != b.GetConverter().GetExpectedPixelFormat()) | |
78 { | |
79 LOG(ERROR) << "The pixel format changes across the slices of the volume image"; | |
80 return false; | |
81 } | |
82 | |
83 if (a.GetWidth() != b.GetWidth() || | |
84 a.GetHeight() != b.GetHeight()) | |
85 { | |
86 LOG(ERROR) << "The width/height of the slices change across the volume image"; | |
87 return false; | |
88 } | |
89 | |
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90 if (!LinearAlgebra::IsNear(a.GetPixelSpacingX(), b.GetPixelSpacingX()) || |
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91 !LinearAlgebra::IsNear(a.GetPixelSpacingY(), b.GetPixelSpacingY())) |
102 | 92 { |
93 LOG(ERROR) << "The pixel spacing of the slices change across the volume image"; | |
94 return false; | |
95 } | |
96 | |
97 return true; | |
98 } | |
99 | |
100 | |
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101 static double GetDistance(const Slice& a, |
102 | 102 const Slice& b) |
103 { | |
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104 return fabs(a.GetGeometry().ProjectAlongNormal(a.GetGeometry().GetOrigin()) - |
102 | 105 a.GetGeometry().ProjectAlongNormal(b.GetGeometry().GetOrigin())); |
106 } | |
107 | |
108 | |
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109 void OnSliceGeometryReady(const OrthancSlicesLoader& loader) |
102 | 110 { |
111 if (loader.GetSliceCount() == 0) | |
112 { | |
113 LOG(ERROR) << "Empty volume image"; | |
114 SlicedVolumeBase::NotifyGeometryError(); | |
115 return; | |
116 } | |
117 | |
118 for (size_t i = 1; i < loader.GetSliceCount(); i++) | |
119 { | |
120 if (!IsCompatible(loader.GetSlice(0), loader.GetSlice(i))) | |
121 { | |
122 SlicedVolumeBase::NotifyGeometryError(); | |
123 return; | |
124 } | |
125 } | |
126 | |
127 double spacingZ; | |
128 | |
129 if (loader.GetSliceCount() > 1) | |
130 { | |
131 spacingZ = GetDistance(loader.GetSlice(0), loader.GetSlice(1)); | |
132 } | |
133 else | |
134 { | |
135 // This is a volume with one single slice: Choose a dummy | |
136 // z-dimension for voxels | |
137 spacingZ = 1; | |
138 } | |
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139 |
102 | 140 for (size_t i = 1; i < loader.GetSliceCount(); i++) |
141 { | |
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142 if (!LinearAlgebra::IsNear(spacingZ, GetDistance(loader.GetSlice(i - 1), loader.GetSlice(i)), |
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143 0.001 /* this is expressed in mm */)) |
102 | 144 { |
145 LOG(ERROR) << "The distance between successive slices is not constant in a volume image"; | |
146 SlicedVolumeBase::NotifyGeometryError(); | |
147 return; | |
148 } | |
149 } | |
150 | |
151 unsigned int width = loader.GetSlice(0).GetWidth(); | |
152 unsigned int height = loader.GetSlice(0).GetHeight(); | |
153 Orthanc::PixelFormat format = loader.GetSlice(0).GetConverter().GetExpectedPixelFormat(); | |
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154 LOG(INFO) << "Creating a volume image of size " << width << "x" << height |
102 | 155 << "x" << loader.GetSliceCount() << " in " << Orthanc::EnumerationToString(format); |
156 | |
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157 image_.reset(new ImageBuffer3D(format, width, height, loader.GetSliceCount(), computeRange_)); |
102 | 158 image_->SetAxialGeometry(loader.GetSlice(0).GetGeometry()); |
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159 image_->SetVoxelDimensions(loader.GetSlice(0).GetPixelSpacingX(), |
102 | 160 loader.GetSlice(0).GetPixelSpacingY(), spacingZ); |
161 image_->Clear(); | |
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162 |
102 | 163 downloadStack_.reset(new DownloadStack(loader.GetSliceCount())); |
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164 pendingSlices_ = loader.GetSliceCount(); |
102 | 165 |
166 for (unsigned int i = 0; i < 4; i++) // Limit to 4 simultaneous downloads | |
167 { | |
168 ScheduleSliceDownload(); | |
169 } | |
170 | |
171 // TODO Check the DicomFrameConverter are constant | |
172 | |
173 SlicedVolumeBase::NotifyGeometryReady(); | |
174 } | |
175 | |
252 | 176 virtual void OnSliceImageReady(const OrthancSlicesLoader& loader, |
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177 unsigned int sliceIndex, |
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178 const Slice& slice, |
378 | 179 const Orthanc::ImageAccessor& image, |
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180 SliceImageQuality quality) |
102 | 181 { |
182 { | |
183 ImageBuffer3D::SliceWriter writer(*image_, VolumeProjection_Axial, sliceIndex); | |
378 | 184 Orthanc::ImageProcessing::Copy(writer.GetAccessor(), image); |
102 | 185 } |
186 | |
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187 SlicedVolumeBase::NotifySliceChange(sliceIndex, slice); |
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188 |
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189 if (pendingSlices_ == 1) |
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190 { |
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191 SlicedVolumeBase::NotifyVolumeReady(); |
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192 pendingSlices_ = 0; |
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193 } |
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194 else if (pendingSlices_ > 1) |
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195 { |
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196 pendingSlices_ -= 1; |
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197 } |
102 | 198 |
199 ScheduleSliceDownload(); | |
200 } | |
201 | |
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202 virtual void HandleMessage(const IObservable& from, const IMessage& message) |
102 | 203 { |
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204 switch (message.GetType()) |
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205 { |
378 | 206 case MessageType_SliceLoader_GeometryReady: |
207 OnSliceGeometryReady(dynamic_cast<const OrthancSlicesLoader&>(from)); | |
208 break; | |
209 | |
210 case MessageType_SliceLoader_GeometryError: | |
211 LOG(ERROR) << "Unable to download a volume image"; | |
212 SlicedVolumeBase::NotifyGeometryError(); | |
213 break; | |
214 | |
215 case MessageType_SliceLoader_ImageReady: | |
216 { | |
217 const OrthancSlicesLoader::SliceImageReadyMessage& msg = | |
218 dynamic_cast<const OrthancSlicesLoader::SliceImageReadyMessage&>(message); | |
219 OnSliceImageReady(dynamic_cast<const OrthancSlicesLoader&>(from), | |
220 msg.GetSliceIndex(), | |
221 msg.GetSlice(), | |
222 msg.GetImage(), | |
223 msg.GetEffectiveQuality()); | |
224 break; | |
225 } | |
226 | |
227 case MessageType_SliceLoader_ImageError: | |
228 { | |
229 const OrthancSlicesLoader::SliceImageErrorMessage& msg = | |
230 dynamic_cast<const OrthancSlicesLoader::SliceImageErrorMessage&>(message); | |
231 LOG(ERROR) << "Cannot download slice " << msg.GetSliceIndex() << " in a volume image"; | |
232 ScheduleSliceDownload(); | |
233 break; | |
234 } | |
235 | |
236 default: | |
237 VLOG("unhandled message type" << message.GetType()); | |
266
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238 } |
102 | 239 } |
240 | |
241 public: | |
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242 OrthancVolumeImage(MessageBroker& broker, |
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243 OrthancApiClient& orthanc, |
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244 bool computeRange) : |
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245 OrthancStone::IObserver(broker), |
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246 loader_(broker, orthanc), |
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247 computeRange_(computeRange), |
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248 pendingSlices_(0) |
102 | 249 { |
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250 // TODO: replace with new callables loader_.RegisterObserver(*this); |
102 | 251 } |
252 | |
253 void ScheduleLoadSeries(const std::string& seriesId) | |
254 { | |
255 loader_.ScheduleLoadSeries(seriesId); | |
256 } | |
257 | |
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258 void ScheduleLoadInstance(const std::string& instanceId) |
102 | 259 { |
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260 loader_.ScheduleLoadInstance(instanceId); |
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261 } |
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262 |
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263 void ScheduleLoadFrame(const std::string& instanceId, |
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264 unsigned int frame) |
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265 { |
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266 loader_.ScheduleLoadFrame(instanceId, frame); |
102 | 267 } |
268 | |
269 virtual size_t GetSliceCount() const | |
270 { | |
271 return loader_.GetSliceCount(); | |
272 } | |
273 | |
274 virtual const Slice& GetSlice(size_t index) const | |
275 { | |
276 return loader_.GetSlice(index); | |
277 } | |
278 | |
279 ImageBuffer3D& GetImage() const | |
280 { | |
281 if (image_.get() == NULL) | |
282 { | |
283 // The geometry is not ready yet | |
284 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
285 } | |
286 else | |
287 { | |
288 return *image_; | |
289 } | |
290 } | |
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291 |
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292 bool FitWindowingToRange(RenderStyle& style, |
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293 const DicomFrameConverter& converter) const |
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294 { |
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295 if (image_.get() == NULL) |
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296 { |
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297 return false; |
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298 } |
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299 else |
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300 { |
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301 return image_->FitWindowingToRange(style, converter); |
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302 } |
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303 } |
102 | 304 }; |
305 | |
306 | |
307 class VolumeImageGeometry | |
308 { | |
309 private: | |
310 unsigned int width_; | |
311 unsigned int height_; | |
312 size_t depth_; | |
313 double pixelSpacingX_; | |
314 double pixelSpacingY_; | |
315 double sliceThickness_; | |
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316 CoordinateSystem3D reference_; |
102 | 317 DicomFrameConverter converter_; |
318 | |
319 double ComputeAxialThickness(const OrthancVolumeImage& volume) const | |
320 { | |
321 double thickness; | |
322 | |
323 size_t n = volume.GetSliceCount(); | |
324 if (n > 1) | |
325 { | |
326 const Slice& a = volume.GetSlice(0); | |
327 const Slice& b = volume.GetSlice(n - 1); | |
328 thickness = ((reference_.ProjectAlongNormal(b.GetGeometry().GetOrigin()) - | |
329 reference_.ProjectAlongNormal(a.GetGeometry().GetOrigin())) / | |
330 (static_cast<double>(n) - 1.0)); | |
331 } | |
332 else | |
333 { | |
334 thickness = volume.GetSlice(0).GetThickness(); | |
335 } | |
336 | |
337 if (thickness <= 0) | |
338 { | |
339 // The slices should have been sorted with increasing Z | |
340 // (along the normal) by the OrthancSlicesLoader | |
341 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
342 } | |
343 else | |
344 { | |
345 return thickness; | |
346 } | |
347 } | |
348 | |
349 void SetupAxial(const OrthancVolumeImage& volume) | |
350 { | |
351 const Slice& axial = volume.GetSlice(0); | |
352 | |
353 width_ = axial.GetWidth(); | |
354 height_ = axial.GetHeight(); | |
355 depth_ = volume.GetSliceCount(); | |
356 | |
357 pixelSpacingX_ = axial.GetPixelSpacingX(); | |
358 pixelSpacingY_ = axial.GetPixelSpacingY(); | |
359 sliceThickness_ = ComputeAxialThickness(volume); | |
360 | |
361 reference_ = axial.GetGeometry(); | |
362 } | |
363 | |
364 void SetupCoronal(const OrthancVolumeImage& volume) | |
365 { | |
366 const Slice& axial = volume.GetSlice(0); | |
367 double axialThickness = ComputeAxialThickness(volume); | |
368 | |
369 width_ = axial.GetWidth(); | |
370 height_ = volume.GetSliceCount(); | |
371 depth_ = axial.GetHeight(); | |
372 | |
373 pixelSpacingX_ = axial.GetPixelSpacingX(); | |
374 pixelSpacingY_ = axialThickness; | |
375 sliceThickness_ = axial.GetPixelSpacingY(); | |
376 | |
377 Vector origin = axial.GetGeometry().GetOrigin(); | |
378 origin += (static_cast<double>(volume.GetSliceCount() - 1) * | |
379 axialThickness * axial.GetGeometry().GetNormal()); | |
380 | |
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381 reference_ = CoordinateSystem3D(origin, |
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382 axial.GetGeometry().GetAxisX(), |
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383 -axial.GetGeometry().GetNormal()); |
102 | 384 } |
385 | |
386 void SetupSagittal(const OrthancVolumeImage& volume) | |
387 { | |
388 const Slice& axial = volume.GetSlice(0); | |
389 double axialThickness = ComputeAxialThickness(volume); | |
390 | |
391 width_ = axial.GetHeight(); | |
392 height_ = volume.GetSliceCount(); | |
393 depth_ = axial.GetWidth(); | |
394 | |
395 pixelSpacingX_ = axial.GetPixelSpacingY(); | |
396 pixelSpacingY_ = axialThickness; | |
397 sliceThickness_ = axial.GetPixelSpacingX(); | |
398 | |
399 Vector origin = axial.GetGeometry().GetOrigin(); | |
400 origin += (static_cast<double>(volume.GetSliceCount() - 1) * | |
401 axialThickness * axial.GetGeometry().GetNormal()); | |
402 | |
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403 reference_ = CoordinateSystem3D(origin, |
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404 axial.GetGeometry().GetAxisY(), |
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405 axial.GetGeometry().GetNormal()); |
102 | 406 } |
407 | |
408 public: | |
409 VolumeImageGeometry(const OrthancVolumeImage& volume, | |
410 VolumeProjection projection) | |
411 { | |
412 if (volume.GetSliceCount() == 0) | |
413 { | |
414 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
415 } | |
416 | |
417 converter_ = volume.GetSlice(0).GetConverter(); | |
418 | |
419 switch (projection) | |
420 { | |
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421 case VolumeProjection_Axial: |
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422 SetupAxial(volume); |
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423 break; |
102 | 424 |
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425 case VolumeProjection_Coronal: |
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426 SetupCoronal(volume); |
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427 break; |
102 | 428 |
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429 case VolumeProjection_Sagittal: |
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430 SetupSagittal(volume); |
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431 break; |
102 | 432 |
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433 default: |
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434 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
102 | 435 } |
436 } | |
437 | |
438 size_t GetSliceCount() const | |
439 { | |
440 return depth_; | |
441 } | |
442 | |
443 const Vector& GetNormal() const | |
444 { | |
445 return reference_.GetNormal(); | |
446 } | |
447 | |
448 bool LookupSlice(size_t& index, | |
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449 const CoordinateSystem3D& slice) const |
102 | 450 { |
451 bool opposite; | |
452 if (!GeometryToolbox::IsParallelOrOpposite(opposite, | |
453 reference_.GetNormal(), | |
454 slice.GetNormal())) | |
455 { | |
456 return false; | |
457 } | |
458 | |
459 double z = (reference_.ProjectAlongNormal(slice.GetOrigin()) - | |
460 reference_.ProjectAlongNormal(reference_.GetOrigin())) / sliceThickness_; | |
461 | |
462 int s = static_cast<int>(boost::math::iround(z)); | |
463 | |
464 if (s < 0 || | |
465 s >= static_cast<int>(depth_)) | |
466 { | |
467 return false; | |
468 } | |
469 else | |
470 { | |
471 index = static_cast<size_t>(s); | |
472 return true; | |
473 } | |
474 } | |
475 | |
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476 Slice* GetSlice(size_t slice) const |
102 | 477 { |
216 | 478 if (slice >= depth_) |
102 | 479 { |
480 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
481 } | |
482 else | |
483 { | |
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484 CoordinateSystem3D origin(reference_.GetOrigin() + |
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485 static_cast<double>(slice) * sliceThickness_ * reference_.GetNormal(), |
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486 reference_.GetAxisX(), |
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487 reference_.GetAxisY()); |
102 | 488 |
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489 return new Slice(origin, pixelSpacingX_, pixelSpacingY_, sliceThickness_, |
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490 width_, height_, converter_); |
102 | 491 } |
492 } | |
493 }; | |
494 | |
495 | |
496 | |
497 class VolumeImageSource : | |
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498 public LayerSourceBase, |
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499 private ISlicedVolume::IObserver |
102 | 500 { |
501 private: | |
502 OrthancVolumeImage& volume_; | |
503 std::auto_ptr<VolumeImageGeometry> axialGeometry_; | |
504 std::auto_ptr<VolumeImageGeometry> coronalGeometry_; | |
505 std::auto_ptr<VolumeImageGeometry> sagittalGeometry_; | |
506 | |
507 | |
508 bool IsGeometryReady() const | |
509 { | |
510 return axialGeometry_.get() != NULL; | |
511 } | |
512 | |
513 | |
514 virtual void NotifyGeometryReady(const ISlicedVolume& volume) | |
515 { | |
516 // These 3 values are only used to speed up the ILayerSource | |
517 axialGeometry_.reset(new VolumeImageGeometry(volume_, VolumeProjection_Axial)); | |
518 coronalGeometry_.reset(new VolumeImageGeometry(volume_, VolumeProjection_Coronal)); | |
519 sagittalGeometry_.reset(new VolumeImageGeometry(volume_, VolumeProjection_Sagittal)); | |
520 | |
521 LayerSourceBase::NotifyGeometryReady(); | |
522 } | |
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523 |
102 | 524 virtual void NotifyGeometryError(const ISlicedVolume& volume) |
525 { | |
526 LayerSourceBase::NotifyGeometryError(); | |
527 } | |
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528 |
102 | 529 virtual void NotifyContentChange(const ISlicedVolume& volume) |
530 { | |
531 LayerSourceBase::NotifyContentChange(); | |
532 } | |
533 | |
534 virtual void NotifySliceChange(const ISlicedVolume& volume, | |
535 const size_t& sliceIndex, | |
536 const Slice& slice) | |
537 { | |
538 //LayerSourceBase::NotifySliceChange(slice); | |
539 | |
540 // TODO Improve this? | |
541 LayerSourceBase::NotifyContentChange(); | |
542 } | |
543 | |
138 | 544 virtual void NotifyVolumeReady(const ISlicedVolume& volume) |
545 { | |
546 } | |
102 | 547 |
548 const VolumeImageGeometry& GetProjectionGeometry(VolumeProjection projection) | |
549 { | |
550 if (!IsGeometryReady()) | |
551 { | |
552 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
553 } | |
554 | |
555 switch (projection) | |
556 { | |
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557 case VolumeProjection_Axial: |
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558 return *axialGeometry_; |
102 | 559 |
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560 case VolumeProjection_Sagittal: |
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561 return *sagittalGeometry_; |
102 | 562 |
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563 case VolumeProjection_Coronal: |
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564 return *coronalGeometry_; |
102 | 565 |
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566 default: |
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567 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
102 | 568 } |
569 } | |
570 | |
571 | |
572 bool DetectProjection(VolumeProjection& projection, | |
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573 const CoordinateSystem3D& viewportSlice) |
102 | 574 { |
575 bool isOpposite; // Ignored | |
576 | |
577 if (GeometryToolbox::IsParallelOrOpposite(isOpposite, | |
578 viewportSlice.GetNormal(), | |
579 axialGeometry_->GetNormal())) | |
580 { | |
581 projection = VolumeProjection_Axial; | |
582 return true; | |
583 } | |
584 else if (GeometryToolbox::IsParallelOrOpposite(isOpposite, | |
585 viewportSlice.GetNormal(), | |
586 sagittalGeometry_->GetNormal())) | |
587 { | |
588 projection = VolumeProjection_Sagittal; | |
589 return true; | |
590 } | |
591 else if (GeometryToolbox::IsParallelOrOpposite(isOpposite, | |
592 viewportSlice.GetNormal(), | |
593 coronalGeometry_->GetNormal())) | |
594 { | |
595 projection = VolumeProjection_Coronal; | |
596 return true; | |
597 } | |
598 else | |
599 { | |
600 return false; | |
601 } | |
602 } | |
603 | |
604 | |
605 public: | |
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606 VolumeImageSource(MessageBroker& broker, OrthancVolumeImage& volume) : |
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607 LayerSourceBase(broker), |
102 | 608 volume_(volume) |
609 { | |
610 volume_.Register(*this); | |
611 } | |
612 | |
613 virtual bool GetExtent(std::vector<Vector>& points, | |
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614 const CoordinateSystem3D& viewportSlice) |
102 | 615 { |
616 VolumeProjection projection; | |
617 | |
618 if (!IsGeometryReady() || | |
619 !DetectProjection(projection, viewportSlice)) | |
620 { | |
621 return false; | |
622 } | |
623 else | |
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624 { |
102 | 625 // As the slices of the volumic image are arranged in a box, |
626 // we only consider one single reference slice (the one with index 0). | |
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627 std::auto_ptr<Slice> slice(GetProjectionGeometry(projection).GetSlice(0)); |
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628 slice->GetExtent(points); |
102 | 629 |
630 return true; | |
631 } | |
632 } | |
633 | |
634 | |
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635 virtual void ScheduleLayerCreation(const CoordinateSystem3D& viewportSlice) |
102 | 636 { |
637 VolumeProjection projection; | |
638 | |
639 if (IsGeometryReady() && | |
640 DetectProjection(projection, viewportSlice)) | |
641 { | |
642 const VolumeImageGeometry& geometry = GetProjectionGeometry(projection); | |
643 | |
644 size_t closest; | |
645 | |
646 if (geometry.LookupSlice(closest, viewportSlice)) | |
647 { | |
648 bool isFullQuality = true; // TODO | |
649 | |
650 std::auto_ptr<Orthanc::Image> frame; | |
651 | |
652 { | |
653 ImageBuffer3D::SliceReader reader(volume_.GetImage(), projection, closest); | |
654 | |
655 // TODO Transfer ownership if non-axial, to avoid memcpy | |
656 frame.reset(Orthanc::Image::Clone(reader.GetAccessor())); | |
657 } | |
658 | |
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659 std::auto_ptr<Slice> slice(geometry.GetSlice(closest)); |
102 | 660 LayerSourceBase::NotifyLayerReady( |
378 | 661 FrameRenderer::CreateRenderer(*frame, *slice, isFullQuality), |
662 //new SliceOutlineRenderer(slice), | |
663 slice->GetGeometry(), false); | |
102 | 664 return; |
665 } | |
666 } | |
667 | |
668 // Error | |
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669 CoordinateSystem3D slice; |
102 | 670 LayerSourceBase::NotifyLayerReady(NULL, slice, true); |
671 } | |
672 }; | |
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673 |
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674 |
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675 class VolumeImageInteractor : |
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676 public IWorldSceneInteractor, |
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677 protected ISlicedVolume::IObserver |
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678 { |
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679 private: |
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680 LayerWidget& widget_; |
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681 VolumeProjection projection_; |
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682 std::auto_ptr<VolumeImageGeometry> slices_; |
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683 size_t slice_; |
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684 |
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685 protected: |
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686 virtual void NotifyGeometryReady(const ISlicedVolume& volume) |
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687 { |
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688 if (slices_.get() == NULL) |
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689 { |
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690 const OrthancVolumeImage& image = dynamic_cast<const OrthancVolumeImage&>(volume); |
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691 |
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692 slices_.reset(new VolumeImageGeometry(image, projection_)); |
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693 SetSlice(slices_->GetSliceCount() / 2); |
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694 |
330 | 695 widget_.FitContent(); |
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696 } |
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697 } |
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698 |
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699 virtual void NotifyGeometryError(const ISlicedVolume& volume) |
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700 { |
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701 } |
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702 |
104
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703 virtual void NotifyContentChange(const ISlicedVolume& volume) |
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704 { |
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705 } |
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706 |
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707 virtual void NotifySliceChange(const ISlicedVolume& volume, |
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708 const size_t& sliceIndex, |
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709 const Slice& slice) |
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710 { |
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711 } |
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|
712 |
138 | 713 virtual void NotifyVolumeReady(const ISlicedVolume& volume) |
714 { | |
715 } | |
716 | |
104
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717 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget, |
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718 const ViewportGeometry& view, |
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719 MouseButton button, |
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720 double x, |
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721 double y, |
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722 IStatusBar* statusBar) |
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723 { |
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724 return NULL; |
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725 } |
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726 |
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727 virtual void MouseOver(CairoContext& context, |
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728 WorldSceneWidget& widget, |
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729 const ViewportGeometry& view, |
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730 double x, |
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731 double y, |
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732 IStatusBar* statusBar) |
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733 { |
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734 } |
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735 |
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736 virtual void MouseWheel(WorldSceneWidget& widget, |
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737 MouseWheelDirection direction, |
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738 KeyboardModifiers modifiers, |
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739 IStatusBar* statusBar) |
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740 { |
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741 int scale = (modifiers & KeyboardModifiers_Control ? 10 : 1); |
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742 |
104
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743 switch (direction) |
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744 { |
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745 case MouseWheelDirection_Up: |
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746 OffsetSlice(-scale); |
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747 break; |
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748 |
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749 case MouseWheelDirection_Down: |
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750 OffsetSlice(scale); |
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751 break; |
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752 |
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753 default: |
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754 break; |
104
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755 } |
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756 } |
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757 |
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758 virtual void KeyPressed(WorldSceneWidget& widget, |
327 | 759 KeyboardKeys key, |
760 char keyChar, | |
104
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761 KeyboardModifiers modifiers, |
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762 IStatusBar* statusBar) |
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763 { |
327 | 764 switch (keyChar) |
104
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765 { |
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766 case 's': |
330 | 767 widget.FitContent(); |
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768 break; |
104
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769 |
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770 default: |
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771 break; |
104
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772 } |
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773 } |
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774 |
104
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|
775 public: |
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776 VolumeImageInteractor(OrthancVolumeImage& volume, |
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777 LayerWidget& widget, |
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778 VolumeProjection projection) : |
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|
779 widget_(widget), |
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780 projection_(projection) |
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|
781 { |
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|
782 volume.Register(*this); |
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783 widget.SetInteractor(*this); |
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784 } |
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diff
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|
785 |
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|
786 bool IsGeometryReady() const |
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787 { |
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788 return slices_.get() != NULL; |
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789 } |
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|
790 |
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791 size_t GetSliceCount() const |
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792 { |
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793 if (slices_.get() == NULL) |
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102
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|
794 { |
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|
795 return 0; |
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|
796 } |
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|
797 else |
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|
798 { |
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|
799 return slices_->GetSliceCount(); |
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800 } |
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diff
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|
801 } |
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|
802 |
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803 void OffsetSlice(int offset) |
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102
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804 { |
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805 if (slices_.get() != NULL) |
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806 { |
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807 int slice = static_cast<int>(slice_) + offset; |
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808 |
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809 if (slice < 0) |
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102
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|
810 { |
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811 slice = 0; |
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102
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|
812 } |
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813 |
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814 if (slice >= static_cast<int>(slices_->GetSliceCount())) |
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815 { |
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|
816 slice = slices_->GetSliceCount() - 1; |
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817 } |
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818 |
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819 if (slice != static_cast<int>(slice_)) |
104
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diff
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|
820 { |
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|
821 SetSlice(slice); |
318
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822 } |
104
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|
823 } |
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824 } |
318
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|
825 |
104
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|
826 void SetSlice(size_t slice) |
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102
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|
827 { |
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diff
changeset
|
828 if (slices_.get() != NULL) |
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102
diff
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|
829 { |
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102
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830 slice_ = slice; |
119
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831 |
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|
832 std::auto_ptr<Slice> tmp(slices_->GetSlice(slice_)); |
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diff
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|
833 widget_.SetSlice(tmp->GetGeometry()); |
104
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102
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834 } |
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diff
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|
835 } |
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diff
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|
836 }; |
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837 |
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838 |
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839 |
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840 class SliceLocationSource : public LayerSourceBase |
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841 { |
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842 private: |
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843 LayerWidget& otherPlane_; |
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844 |
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845 public: |
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846 SliceLocationSource(MessageBroker& broker, LayerWidget& otherPlane) : |
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847 LayerSourceBase(broker), |
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848 otherPlane_(otherPlane) |
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849 { |
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850 NotifyGeometryReady(); |
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851 } |
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852 |
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853 virtual bool GetExtent(std::vector<Vector>& points, |
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854 const CoordinateSystem3D& viewportSlice) |
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855 { |
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856 return false; |
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857 } |
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858 |
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859 virtual void ScheduleLayerCreation(const CoordinateSystem3D& viewportSlice) |
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860 { |
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861 Slice reference(viewportSlice, 0.001); |
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862 |
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863 Vector p, d; |
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864 |
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865 const CoordinateSystem3D& slice = otherPlane_.GetSlice(); |
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866 |
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867 // Compute the line of intersection between the two slices |
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868 if (!GeometryToolbox::IntersectTwoPlanes(p, d, |
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869 slice.GetOrigin(), slice.GetNormal(), |
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870 viewportSlice.GetOrigin(), viewportSlice.GetNormal())) |
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871 { |
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872 // The two slice are parallel, don't try and display the intersection |
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873 NotifyLayerReady(NULL, reference.GetGeometry(), false); |
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874 } |
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875 else |
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876 { |
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877 double x1, y1, x2, y2; |
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878 viewportSlice.ProjectPoint(x1, y1, p); |
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879 viewportSlice.ProjectPoint(x2, y2, p + 1000.0 * d); |
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880 |
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881 const Extent2D extent = otherPlane_.GetSceneExtent(); |
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882 |
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883 if (GeometryToolbox::ClipLineToRectangle(x1, y1, x2, y2, |
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884 x1, y1, x2, y2, |
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885 extent.GetX1(), extent.GetY1(), |
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886 extent.GetX2(), extent.GetY2())) |
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887 { |
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888 NotifyLayerReady(new LineLayerRenderer(x1, y1, x2, y2, slice), reference.GetGeometry(), false); |
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889 } |
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890 else |
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891 { |
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892 // Parallel slices |
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893 NotifyLayerReady(NULL, reference.GetGeometry(), false); |
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894 } |
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895 } |
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896 } |
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897 }; |
102 | 898 } |