Mercurial > hg > orthanc-stone
annotate Framework/dev.h @ 117:42c05a3baee3 wasm
loading multi-frame instances as 3D volumes
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 28 Sep 2017 16:55:51 +0200 |
parents | 2eca030792aa |
children | ba83e38cf3ff |
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 | |
5 * Copyright (C) 2017 Osimis, Belgium | |
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. | |
16 * | |
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" |
30 #include "Toolbox/OrthancSlicesLoader.h" | |
31 #include "Volumes/ImageBuffer3D.h" | |
32 #include "Volumes/SlicedVolumeBase.h" | |
33 | |
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34 #include <Core/Logging.h> |
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35 #include <Core/Images/ImageProcessing.h> |
102 | 36 |
37 #include <boost/math/special_functions/round.hpp> | |
38 | |
39 | |
40 namespace OrthancStone | |
41 { | |
42 class OrthancVolumeImage : | |
43 public SlicedVolumeBase, | |
44 private OrthancSlicesLoader::ICallback | |
45 { | |
46 private: | |
47 OrthancSlicesLoader loader_; | |
48 std::auto_ptr<ImageBuffer3D> image_; | |
49 std::auto_ptr<DownloadStack> downloadStack_; | |
50 | |
51 | |
52 void ScheduleSliceDownload() | |
53 { | |
54 assert(downloadStack_.get() != NULL); | |
55 | |
56 unsigned int slice; | |
57 if (downloadStack_->Pop(slice)) | |
58 { | |
59 loader_.ScheduleLoadSliceImage(slice, SliceImageQuality_Jpeg90); | |
60 } | |
61 } | |
62 | |
63 | |
64 static bool IsCompatible(const Slice& a, | |
65 const Slice& b) | |
66 { | |
67 if (!GeometryToolbox::IsParallel(a.GetGeometry().GetNormal(), | |
68 b.GetGeometry().GetNormal())) | |
69 { | |
70 LOG(ERROR) << "Some slice in the volume image is not parallel to the others"; | |
71 return false; | |
72 } | |
73 | |
74 if (a.GetConverter().GetExpectedPixelFormat() != b.GetConverter().GetExpectedPixelFormat()) | |
75 { | |
76 LOG(ERROR) << "The pixel format changes across the slices of the volume image"; | |
77 return false; | |
78 } | |
79 | |
80 if (a.GetWidth() != b.GetWidth() || | |
81 a.GetHeight() != b.GetHeight()) | |
82 { | |
83 LOG(ERROR) << "The width/height of the slices change across the volume image"; | |
84 return false; | |
85 } | |
86 | |
87 if (!GeometryToolbox::IsNear(a.GetPixelSpacingX(), b.GetPixelSpacingX()) || | |
88 !GeometryToolbox::IsNear(a.GetPixelSpacingY(), b.GetPixelSpacingY())) | |
89 { | |
90 LOG(ERROR) << "The pixel spacing of the slices change across the volume image"; | |
91 return false; | |
92 } | |
93 | |
94 return true; | |
95 } | |
96 | |
97 | |
98 static double GetDistance(const Slice& a, | |
99 const Slice& b) | |
100 { | |
101 return fabs(a.GetGeometry().ProjectAlongNormal(a.GetGeometry().GetOrigin()) - | |
102 a.GetGeometry().ProjectAlongNormal(b.GetGeometry().GetOrigin())); | |
103 } | |
104 | |
105 | |
106 virtual void NotifyGeometryReady(const OrthancSlicesLoader& loader) | |
107 { | |
108 if (loader.GetSliceCount() == 0) | |
109 { | |
110 LOG(ERROR) << "Empty volume image"; | |
111 SlicedVolumeBase::NotifyGeometryError(); | |
112 return; | |
113 } | |
114 | |
115 for (size_t i = 1; i < loader.GetSliceCount(); i++) | |
116 { | |
117 if (!IsCompatible(loader.GetSlice(0), loader.GetSlice(i))) | |
118 { | |
119 SlicedVolumeBase::NotifyGeometryError(); | |
120 return; | |
121 } | |
122 } | |
123 | |
124 double spacingZ; | |
125 | |
126 if (loader.GetSliceCount() > 1) | |
127 { | |
128 spacingZ = GetDistance(loader.GetSlice(0), loader.GetSlice(1)); | |
129 } | |
130 else | |
131 { | |
132 // This is a volume with one single slice: Choose a dummy | |
133 // z-dimension for voxels | |
134 spacingZ = 1; | |
135 } | |
136 | |
137 for (size_t i = 1; i < loader.GetSliceCount(); i++) | |
138 { | |
139 if (!GeometryToolbox::IsNear(spacingZ, GetDistance(loader.GetSlice(i - 1), loader.GetSlice(i)), | |
140 0.001 /* this is expressed in mm */)) | |
141 { | |
142 LOG(ERROR) << "The distance between successive slices is not constant in a volume image"; | |
143 SlicedVolumeBase::NotifyGeometryError(); | |
144 return; | |
145 } | |
146 } | |
147 | |
148 unsigned int width = loader.GetSlice(0).GetWidth(); | |
149 unsigned int height = loader.GetSlice(0).GetHeight(); | |
150 Orthanc::PixelFormat format = loader.GetSlice(0).GetConverter().GetExpectedPixelFormat(); | |
151 LOG(INFO) << "Creating a volume image of size " << width << "x" << height | |
152 << "x" << loader.GetSliceCount() << " in " << Orthanc::EnumerationToString(format); | |
153 | |
154 image_.reset(new ImageBuffer3D(format, width, height, loader.GetSliceCount())); | |
155 image_->SetAxialGeometry(loader.GetSlice(0).GetGeometry()); | |
156 image_->SetVoxelDimensions(loader.GetSlice(0).GetPixelSpacingX(), | |
157 loader.GetSlice(0).GetPixelSpacingY(), spacingZ); | |
158 image_->Clear(); | |
159 | |
160 downloadStack_.reset(new DownloadStack(loader.GetSliceCount())); | |
161 | |
162 for (unsigned int i = 0; i < 4; i++) // Limit to 4 simultaneous downloads | |
163 { | |
164 ScheduleSliceDownload(); | |
165 } | |
166 | |
167 // TODO Check the DicomFrameConverter are constant | |
168 | |
169 SlicedVolumeBase::NotifyGeometryReady(); | |
170 } | |
171 | |
172 virtual void NotifyGeometryError(const OrthancSlicesLoader& loader) | |
173 { | |
174 LOG(ERROR) << "Unable to download a volume image"; | |
175 SlicedVolumeBase::NotifyGeometryError(); | |
176 } | |
177 | |
178 virtual void NotifySliceImageReady(const OrthancSlicesLoader& loader, | |
179 unsigned int sliceIndex, | |
180 const Slice& slice, | |
181 std::auto_ptr<Orthanc::ImageAccessor>& image, | |
182 SliceImageQuality quality) | |
183 { | |
184 { | |
185 ImageBuffer3D::SliceWriter writer(*image_, VolumeProjection_Axial, sliceIndex); | |
186 Orthanc::ImageProcessing::Copy(writer.GetAccessor(), *image); | |
187 } | |
188 | |
189 SlicedVolumeBase::NotifySliceChange(sliceIndex, slice); | |
190 | |
191 ScheduleSliceDownload(); | |
192 } | |
193 | |
194 virtual void NotifySliceImageError(const OrthancSlicesLoader& loader, | |
195 unsigned int sliceIndex, | |
196 const Slice& slice, | |
197 SliceImageQuality quality) | |
198 { | |
199 LOG(ERROR) << "Cannot download slice " << sliceIndex << " in a volume image"; | |
200 ScheduleSliceDownload(); | |
201 } | |
202 | |
203 public: | |
204 OrthancVolumeImage(IWebService& orthanc) : | |
205 loader_(*this, orthanc) | |
206 { | |
207 } | |
208 | |
209 void ScheduleLoadSeries(const std::string& seriesId) | |
210 { | |
211 loader_.ScheduleLoadSeries(seriesId); | |
212 } | |
213 | |
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214 void ScheduleLoadInstance(const std::string& instanceId) |
102 | 215 { |
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216 loader_.ScheduleLoadInstance(instanceId); |
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217 } |
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218 |
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219 void ScheduleLoadFrame(const std::string& instanceId, |
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220 unsigned int frame) |
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221 { |
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222 loader_.ScheduleLoadFrame(instanceId, frame); |
102 | 223 } |
224 | |
225 virtual size_t GetSliceCount() const | |
226 { | |
227 return loader_.GetSliceCount(); | |
228 } | |
229 | |
230 virtual const Slice& GetSlice(size_t index) const | |
231 { | |
232 return loader_.GetSlice(index); | |
233 } | |
234 | |
235 ImageBuffer3D& GetImage() const | |
236 { | |
237 if (image_.get() == NULL) | |
238 { | |
239 // The geometry is not ready yet | |
240 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
241 } | |
242 else | |
243 { | |
244 return *image_; | |
245 } | |
246 } | |
247 }; | |
248 | |
249 | |
250 class VolumeImageGeometry | |
251 { | |
252 private: | |
253 unsigned int width_; | |
254 unsigned int height_; | |
255 size_t depth_; | |
256 double pixelSpacingX_; | |
257 double pixelSpacingY_; | |
258 double sliceThickness_; | |
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259 CoordinateSystem3D reference_; |
102 | 260 DicomFrameConverter converter_; |
261 | |
262 double ComputeAxialThickness(const OrthancVolumeImage& volume) const | |
263 { | |
264 double thickness; | |
265 | |
266 size_t n = volume.GetSliceCount(); | |
267 if (n > 1) | |
268 { | |
269 const Slice& a = volume.GetSlice(0); | |
270 const Slice& b = volume.GetSlice(n - 1); | |
271 thickness = ((reference_.ProjectAlongNormal(b.GetGeometry().GetOrigin()) - | |
272 reference_.ProjectAlongNormal(a.GetGeometry().GetOrigin())) / | |
273 (static_cast<double>(n) - 1.0)); | |
274 } | |
275 else | |
276 { | |
277 thickness = volume.GetSlice(0).GetThickness(); | |
278 } | |
279 | |
280 if (thickness <= 0) | |
281 { | |
282 // The slices should have been sorted with increasing Z | |
283 // (along the normal) by the OrthancSlicesLoader | |
284 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
285 } | |
286 else | |
287 { | |
288 return thickness; | |
289 } | |
290 } | |
291 | |
292 void SetupAxial(const OrthancVolumeImage& volume) | |
293 { | |
294 const Slice& axial = volume.GetSlice(0); | |
295 | |
296 width_ = axial.GetWidth(); | |
297 height_ = axial.GetHeight(); | |
298 depth_ = volume.GetSliceCount(); | |
299 | |
300 pixelSpacingX_ = axial.GetPixelSpacingX(); | |
301 pixelSpacingY_ = axial.GetPixelSpacingY(); | |
302 sliceThickness_ = ComputeAxialThickness(volume); | |
303 | |
304 reference_ = axial.GetGeometry(); | |
305 } | |
306 | |
307 void SetupCoronal(const OrthancVolumeImage& volume) | |
308 { | |
309 const Slice& axial = volume.GetSlice(0); | |
310 double axialThickness = ComputeAxialThickness(volume); | |
311 | |
312 width_ = axial.GetWidth(); | |
313 height_ = volume.GetSliceCount(); | |
314 depth_ = axial.GetHeight(); | |
315 | |
316 pixelSpacingX_ = axial.GetPixelSpacingX(); | |
317 pixelSpacingY_ = axialThickness; | |
318 sliceThickness_ = axial.GetPixelSpacingY(); | |
319 | |
320 Vector origin = axial.GetGeometry().GetOrigin(); | |
321 origin += (static_cast<double>(volume.GetSliceCount() - 1) * | |
322 axialThickness * axial.GetGeometry().GetNormal()); | |
323 | |
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324 reference_ = CoordinateSystem3D(origin, |
102 | 325 axial.GetGeometry().GetAxisX(), |
326 -axial.GetGeometry().GetNormal()); | |
327 } | |
328 | |
329 void SetupSagittal(const OrthancVolumeImage& volume) | |
330 { | |
331 const Slice& axial = volume.GetSlice(0); | |
332 double axialThickness = ComputeAxialThickness(volume); | |
333 | |
334 width_ = axial.GetHeight(); | |
335 height_ = volume.GetSliceCount(); | |
336 depth_ = axial.GetWidth(); | |
337 | |
338 pixelSpacingX_ = axial.GetPixelSpacingY(); | |
339 pixelSpacingY_ = axialThickness; | |
340 sliceThickness_ = axial.GetPixelSpacingX(); | |
341 | |
342 Vector origin = axial.GetGeometry().GetOrigin(); | |
343 origin += (static_cast<double>(volume.GetSliceCount() - 1) * | |
344 axialThickness * axial.GetGeometry().GetNormal()); | |
345 | |
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346 reference_ = CoordinateSystem3D(origin, |
102 | 347 axial.GetGeometry().GetAxisY(), |
348 axial.GetGeometry().GetNormal()); | |
349 } | |
350 | |
351 public: | |
352 VolumeImageGeometry(const OrthancVolumeImage& volume, | |
353 VolumeProjection projection) | |
354 { | |
355 if (volume.GetSliceCount() == 0) | |
356 { | |
357 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
358 } | |
359 | |
360 converter_ = volume.GetSlice(0).GetConverter(); | |
361 | |
362 switch (projection) | |
363 { | |
364 case VolumeProjection_Axial: | |
365 SetupAxial(volume); | |
366 break; | |
367 | |
368 case VolumeProjection_Coronal: | |
369 SetupCoronal(volume); | |
370 break; | |
371 | |
372 case VolumeProjection_Sagittal: | |
373 SetupSagittal(volume); | |
374 break; | |
375 | |
376 default: | |
377 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
378 } | |
379 } | |
380 | |
381 size_t GetSliceCount() const | |
382 { | |
383 return depth_; | |
384 } | |
385 | |
386 const Vector& GetNormal() const | |
387 { | |
388 return reference_.GetNormal(); | |
389 } | |
390 | |
391 bool LookupSlice(size_t& index, | |
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392 const CoordinateSystem3D& slice) const |
102 | 393 { |
394 bool opposite; | |
395 if (!GeometryToolbox::IsParallelOrOpposite(opposite, | |
396 reference_.GetNormal(), | |
397 slice.GetNormal())) | |
398 { | |
399 return false; | |
400 } | |
401 | |
402 double z = (reference_.ProjectAlongNormal(slice.GetOrigin()) - | |
403 reference_.ProjectAlongNormal(reference_.GetOrigin())) / sliceThickness_; | |
404 | |
405 int s = static_cast<int>(boost::math::iround(z)); | |
406 | |
407 if (s < 0 || | |
408 s >= static_cast<int>(depth_)) | |
409 { | |
410 return false; | |
411 } | |
412 else | |
413 { | |
414 index = static_cast<size_t>(s); | |
415 return true; | |
416 } | |
417 } | |
418 | |
419 Slice GetSlice(size_t slice) const | |
420 { | |
421 if (slice < 0 || | |
422 slice >= depth_) | |
423 { | |
424 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
425 } | |
426 else | |
427 { | |
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428 CoordinateSystem3D origin(reference_.GetOrigin() + |
102 | 429 static_cast<double>(slice) * sliceThickness_ * reference_.GetNormal(), |
430 reference_.GetAxisX(), | |
431 reference_.GetAxisY()); | |
432 | |
433 return Slice(origin, pixelSpacingX_, pixelSpacingY_, sliceThickness_, | |
434 width_, height_, converter_); | |
435 } | |
436 } | |
437 }; | |
438 | |
439 | |
440 | |
441 class VolumeImageSource : | |
442 public LayerSourceBase, | |
443 private ISlicedVolume::IObserver | |
444 { | |
445 private: | |
446 OrthancVolumeImage& volume_; | |
447 std::auto_ptr<VolumeImageGeometry> axialGeometry_; | |
448 std::auto_ptr<VolumeImageGeometry> coronalGeometry_; | |
449 std::auto_ptr<VolumeImageGeometry> sagittalGeometry_; | |
450 | |
451 | |
452 bool IsGeometryReady() const | |
453 { | |
454 return axialGeometry_.get() != NULL; | |
455 } | |
456 | |
457 | |
458 virtual void NotifyGeometryReady(const ISlicedVolume& volume) | |
459 { | |
460 // These 3 values are only used to speed up the ILayerSource | |
461 axialGeometry_.reset(new VolumeImageGeometry(volume_, VolumeProjection_Axial)); | |
462 coronalGeometry_.reset(new VolumeImageGeometry(volume_, VolumeProjection_Coronal)); | |
463 sagittalGeometry_.reset(new VolumeImageGeometry(volume_, VolumeProjection_Sagittal)); | |
464 | |
465 LayerSourceBase::NotifyGeometryReady(); | |
466 } | |
467 | |
468 virtual void NotifyGeometryError(const ISlicedVolume& volume) | |
469 { | |
470 LayerSourceBase::NotifyGeometryError(); | |
471 } | |
472 | |
473 virtual void NotifyContentChange(const ISlicedVolume& volume) | |
474 { | |
475 LayerSourceBase::NotifyContentChange(); | |
476 } | |
477 | |
478 virtual void NotifySliceChange(const ISlicedVolume& volume, | |
479 const size_t& sliceIndex, | |
480 const Slice& slice) | |
481 { | |
482 //LayerSourceBase::NotifySliceChange(slice); | |
483 | |
484 // TODO Improve this? | |
485 LayerSourceBase::NotifyContentChange(); | |
486 } | |
487 | |
488 | |
489 const VolumeImageGeometry& GetProjectionGeometry(VolumeProjection projection) | |
490 { | |
491 if (!IsGeometryReady()) | |
492 { | |
493 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
494 } | |
495 | |
496 switch (projection) | |
497 { | |
498 case VolumeProjection_Axial: | |
499 return *axialGeometry_; | |
500 | |
501 case VolumeProjection_Sagittal: | |
502 return *sagittalGeometry_; | |
503 | |
504 case VolumeProjection_Coronal: | |
505 return *coronalGeometry_; | |
506 | |
507 default: | |
508 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
509 } | |
510 } | |
511 | |
512 | |
513 bool DetectProjection(VolumeProjection& projection, | |
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514 const CoordinateSystem3D& viewportSlice) |
102 | 515 { |
516 bool isOpposite; // Ignored | |
517 | |
518 if (GeometryToolbox::IsParallelOrOpposite(isOpposite, | |
519 viewportSlice.GetNormal(), | |
520 axialGeometry_->GetNormal())) | |
521 { | |
522 projection = VolumeProjection_Axial; | |
523 return true; | |
524 } | |
525 else if (GeometryToolbox::IsParallelOrOpposite(isOpposite, | |
526 viewportSlice.GetNormal(), | |
527 sagittalGeometry_->GetNormal())) | |
528 { | |
529 projection = VolumeProjection_Sagittal; | |
530 return true; | |
531 } | |
532 else if (GeometryToolbox::IsParallelOrOpposite(isOpposite, | |
533 viewportSlice.GetNormal(), | |
534 coronalGeometry_->GetNormal())) | |
535 { | |
536 projection = VolumeProjection_Coronal; | |
537 return true; | |
538 } | |
539 else | |
540 { | |
541 return false; | |
542 } | |
543 } | |
544 | |
545 | |
546 public: | |
547 VolumeImageSource(OrthancVolumeImage& volume) : | |
548 volume_(volume) | |
549 { | |
550 volume_.Register(*this); | |
551 } | |
552 | |
553 virtual bool GetExtent(std::vector<Vector>& points, | |
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554 const CoordinateSystem3D& viewportSlice) |
102 | 555 { |
556 VolumeProjection projection; | |
557 | |
558 if (!IsGeometryReady() || | |
559 !DetectProjection(projection, viewportSlice)) | |
560 { | |
561 return false; | |
562 } | |
563 else | |
564 { | |
565 // As the slices of the volumic image are arranged in a box, | |
566 // we only consider one single reference slice (the one with index 0). | |
567 GetProjectionGeometry(projection).GetSlice(0).GetExtent(points); | |
568 | |
569 return true; | |
570 } | |
571 } | |
572 | |
573 | |
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574 virtual void ScheduleLayerCreation(const CoordinateSystem3D& viewportSlice) |
102 | 575 { |
576 VolumeProjection projection; | |
577 | |
578 if (IsGeometryReady() && | |
579 DetectProjection(projection, viewportSlice)) | |
580 { | |
581 const VolumeImageGeometry& geometry = GetProjectionGeometry(projection); | |
582 | |
583 size_t closest; | |
584 | |
585 if (geometry.LookupSlice(closest, viewportSlice)) | |
586 { | |
587 bool isFullQuality = true; // TODO | |
588 | |
589 std::auto_ptr<Orthanc::Image> frame; | |
590 | |
591 { | |
592 ImageBuffer3D::SliceReader reader(volume_.GetImage(), projection, closest); | |
593 | |
594 // TODO Transfer ownership if non-axial, to avoid memcpy | |
595 frame.reset(Orthanc::Image::Clone(reader.GetAccessor())); | |
596 } | |
597 | |
598 Slice slice = geometry.GetSlice(closest); | |
599 LayerSourceBase::NotifyLayerReady( | |
600 FrameRenderer::CreateRenderer(frame.release(), slice, isFullQuality), | |
601 //new SliceOutlineRenderer(slice), | |
602 slice, false); | |
603 return; | |
604 } | |
605 } | |
606 | |
607 // Error | |
608 Slice slice; | |
609 LayerSourceBase::NotifyLayerReady(NULL, slice, true); | |
610 } | |
611 }; | |
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612 |
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613 |
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614 class VolumeImageInteractor : |
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615 public IWorldSceneInteractor, |
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616 private ISlicedVolume::IObserver |
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617 { |
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618 private: |
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619 LayerWidget& widget_; |
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620 VolumeProjection projection_; |
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621 std::auto_ptr<VolumeImageGeometry> slices_; |
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622 size_t slice_; |
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623 |
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624 virtual void NotifyGeometryReady(const ISlicedVolume& volume) |
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625 { |
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626 if (slices_.get() == NULL) |
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627 { |
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628 const OrthancVolumeImage& image = dynamic_cast<const OrthancVolumeImage&>(volume); |
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629 |
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630 slices_.reset(new VolumeImageGeometry(image, projection_)); |
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631 SetSlice(slices_->GetSliceCount() / 2); |
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632 |
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633 widget_.SetDefaultView(); |
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634 } |
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635 } |
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636 |
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637 virtual void NotifyGeometryError(const ISlicedVolume& volume) |
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638 { |
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639 } |
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640 |
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641 virtual void NotifyContentChange(const ISlicedVolume& volume) |
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642 { |
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643 } |
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644 |
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645 virtual void NotifySliceChange(const ISlicedVolume& volume, |
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646 const size_t& sliceIndex, |
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647 const Slice& slice) |
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648 { |
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649 } |
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650 |
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651 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget, |
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652 const ViewportGeometry& view, |
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653 MouseButton button, |
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654 double x, |
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655 double y, |
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656 IStatusBar* statusBar) |
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657 { |
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658 return NULL; |
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659 } |
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660 |
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661 virtual void MouseOver(CairoContext& context, |
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662 WorldSceneWidget& widget, |
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663 const ViewportGeometry& view, |
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664 double x, |
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665 double y, |
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666 IStatusBar* statusBar) |
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667 { |
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668 } |
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669 |
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670 virtual void MouseWheel(WorldSceneWidget& widget, |
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671 MouseWheelDirection direction, |
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672 KeyboardModifiers modifiers, |
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673 IStatusBar* statusBar) |
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674 { |
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675 int scale = (modifiers & KeyboardModifiers_Control ? 10 : 1); |
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676 |
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677 switch (direction) |
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678 { |
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679 case MouseWheelDirection_Up: |
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680 OffsetSlice(-scale); |
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681 break; |
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682 |
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683 case MouseWheelDirection_Down: |
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684 OffsetSlice(scale); |
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685 break; |
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686 |
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687 default: |
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688 break; |
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689 } |
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690 } |
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691 |
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692 virtual void KeyPressed(WorldSceneWidget& widget, |
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693 char key, |
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694 KeyboardModifiers modifiers, |
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695 IStatusBar* statusBar) |
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696 { |
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697 switch (key) |
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698 { |
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699 case 's': |
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700 widget.SetDefaultView(); |
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701 break; |
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702 |
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703 default: |
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704 break; |
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705 } |
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Sebastien Jodogne <s.jodogne@gmail.com>
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706 } |
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Sebastien Jodogne <s.jodogne@gmail.com>
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|
707 |
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Sebastien Jodogne <s.jodogne@gmail.com>
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|
708 public: |
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709 VolumeImageInteractor(OrthancVolumeImage& volume, |
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710 LayerWidget& widget, |
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|
711 VolumeProjection projection) : |
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712 widget_(widget), |
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713 projection_(projection) |
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|
714 { |
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715 volume.Register(*this); |
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716 widget.SetInteractor(*this); |
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diff
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|
717 } |
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102
diff
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|
718 |
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diff
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719 bool IsGeometryReady() const |
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720 { |
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721 return slices_.get() != NULL; |
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722 } |
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723 |
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724 size_t GetSliceCount() const |
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|
725 { |
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|
726 if (slices_.get() == NULL) |
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|
727 { |
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|
728 return 0; |
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diff
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|
729 } |
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|
730 else |
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diff
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|
731 { |
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diff
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|
732 return slices_->GetSliceCount(); |
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diff
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733 } |
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diff
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|
734 } |
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102
diff
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|
735 |
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102
diff
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|
736 void OffsetSlice(int offset) |
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parents:
102
diff
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|
737 { |
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738 if (slices_.get() != NULL) |
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739 { |
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740 int slice = static_cast<int>(slice_) + offset; |
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741 |
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742 if (slice < 0) |
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743 { |
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744 slice = 0; |
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745 } |
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746 |
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747 if (slice >= static_cast<int>(slices_->GetSliceCount())) |
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748 { |
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749 slice = slices_->GetSliceCount() - 1; |
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750 } |
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751 |
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752 if (slice != static_cast<int>(slice_)) |
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753 { |
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754 SetSlice(slice); |
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755 } |
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756 } |
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757 } |
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758 |
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759 void SetSlice(size_t slice) |
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760 { |
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761 if (slices_.get() != NULL) |
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762 { |
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763 slice_ = slice; |
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764 widget_.SetSlice(slices_->GetSlice(slice_).GetGeometry()); |
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765 } |
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766 } |
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767 }; |
112
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|
768 |
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769 |
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770 |
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771 class SliceLocationSource : public LayerSourceBase |
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|
772 { |
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773 private: |
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774 LayerWidget& otherPlane_; |
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775 |
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|
776 public: |
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777 SliceLocationSource(LayerWidget& otherPlane) : |
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778 otherPlane_(otherPlane) |
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779 { |
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780 NotifyGeometryReady(); |
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781 } |
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782 |
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783 virtual bool GetExtent(std::vector<Vector>& points, |
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784 const CoordinateSystem3D& viewportSlice) |
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785 { |
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786 return false; |
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787 } |
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788 |
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789 virtual void ScheduleLayerCreation(const CoordinateSystem3D& viewportSlice) |
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790 { |
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791 Slice reference(viewportSlice, 0.001); |
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792 |
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793 Vector p, d; |
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794 |
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795 const CoordinateSystem3D& slice = otherPlane_.GetSlice(); |
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796 |
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797 // Compute the line of intersection between the two slices |
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798 if (!GeometryToolbox::IntersectTwoPlanes(p, d, |
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799 slice.GetOrigin(), slice.GetNormal(), |
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800 viewportSlice.GetOrigin(), viewportSlice.GetNormal())) |
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801 { |
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802 // The two slice are parallel, don't try and display the intersection |
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803 NotifyLayerReady(NULL, reference, false); |
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804 } |
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805 else |
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806 { |
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807 double x1, y1, x2, y2; |
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808 viewportSlice.ProjectPoint(x1, y1, p); |
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809 viewportSlice.ProjectPoint(x2, y2, p + 1000.0 * d); |
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810 |
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811 const Extent2D extent = otherPlane_.GetSceneExtent(); |
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812 |
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813 if (GeometryToolbox::ClipLineToRectangle(x1, y1, x2, y2, |
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814 x1, y1, x2, y2, |
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815 extent.GetX1(), extent.GetY1(), |
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816 extent.GetX2(), extent.GetY2())) |
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817 { |
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818 NotifyLayerReady(new LineLayerRenderer(x1, y1, x2, y2, slice), reference, false); |
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819 } |
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820 else |
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821 { |
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822 // Parallel slices |
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823 NotifyLayerReady(NULL, reference, false); |
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824 } |
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|
825 } |
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826 } |
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827 }; |
102 | 828 } |