Mercurial > hg > orthanc-stone
annotate Framework/Radiography/RadiographyScene.cpp @ 417:aee3d7941c9b
preparing to load images using DICOMweb
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 15 Nov 2018 17:28:15 +0100 |
| parents | 71c16998fcc8 |
| children | c23df8b3433b |
| rev | line source |
|---|---|
| 408 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * Copyright (C) 2017-2018 Osimis S.A., 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 #include "RadiographyScene.h" | |
| 23 | |
| 24 #include "../Toolbox/DicomFrameConverter.h" | |
| 25 | |
| 26 #include <Core/Images/Image.h> | |
| 27 #include <Core/Images/ImageProcessing.h> | |
| 28 #include <Core/Images/PamReader.h> | |
| 29 #include <Core/Images/PamWriter.h> | |
| 30 #include <Core/Images/PngWriter.h> | |
| 31 #include <Core/OrthancException.h> | |
| 32 #include <Core/Toolbox.h> | |
| 33 #include <Plugins/Samples/Common/DicomDatasetReader.h> | |
| 34 #include <Plugins/Samples/Common/FullOrthancDataset.h> | |
| 35 | |
| 412 | 36 #include <boost/math/special_functions/round.hpp> |
| 37 | |
| 408 | 38 |
| 39 namespace OrthancStone | |
| 40 { | |
| 41 RadiographyScene::LayerAccessor::LayerAccessor(RadiographyScene& scene, | |
| 42 size_t index) : | |
| 43 scene_(scene), | |
| 44 index_(index) | |
| 45 { | |
| 46 Layers::iterator layer = scene.layers_.find(index); | |
| 47 if (layer == scene.layers_.end()) | |
| 48 { | |
| 49 layer_ = NULL; | |
| 50 } | |
| 51 else | |
| 52 { | |
| 53 assert(layer->second != NULL); | |
| 54 layer_ = layer->second; | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 | |
| 59 RadiographyScene::LayerAccessor::LayerAccessor(RadiographyScene& scene, | |
| 60 double x, | |
| 61 double y) : | |
| 62 scene_(scene), | |
| 63 index_(0) // Dummy initialization | |
| 64 { | |
| 65 if (scene.LookupLayer(index_, x, y)) | |
| 66 { | |
| 67 Layers::iterator layer = scene.layers_.find(index_); | |
| 68 | |
| 69 if (layer == scene.layers_.end()) | |
| 70 { | |
| 71 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 72 } | |
| 73 else | |
| 74 { | |
| 75 assert(layer->second != NULL); | |
| 76 layer_ = layer->second; | |
| 77 } | |
| 78 } | |
| 79 else | |
| 80 { | |
| 81 layer_ = NULL; | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 | |
| 86 RadiographyScene& RadiographyScene::LayerAccessor::GetScene() const | |
| 87 { | |
| 88 if (IsValid()) | |
| 89 { | |
| 90 return scene_; | |
| 91 } | |
| 92 else | |
| 93 { | |
| 94 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 | |
| 99 size_t RadiographyScene::LayerAccessor::GetIndex() const | |
| 100 { | |
| 101 if (IsValid()) | |
| 102 { | |
| 103 return index_; | |
| 104 } | |
| 105 else | |
| 106 { | |
| 107 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 | |
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112 RadiographyLayer& RadiographyScene::LayerAccessor::GetLayer() const |
| 408 | 113 { |
| 114 if (IsValid()) | |
| 115 { | |
| 116 return *layer_; | |
| 117 } | |
| 118 else | |
| 119 { | |
| 120 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 | |
| 125 | |
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126 class RadiographyScene::AlphaLayer : public RadiographyLayer |
| 408 | 127 { |
| 128 private: | |
| 129 const RadiographyScene& scene_; | |
| 130 std::auto_ptr<Orthanc::ImageAccessor> alpha_; // Grayscale8 | |
| 131 bool useWindowing_; | |
| 132 float foreground_; | |
| 133 | |
| 134 public: | |
| 135 AlphaLayer(const RadiographyScene& scene) : | |
| 136 scene_(scene), | |
| 137 useWindowing_(true), | |
| 138 foreground_(0) | |
| 139 { | |
| 140 } | |
| 141 | |
| 142 | |
| 143 void SetForegroundValue(float foreground) | |
| 144 { | |
| 145 useWindowing_ = false; | |
| 146 foreground_ = foreground; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 void SetAlpha(Orthanc::ImageAccessor* image) | |
| 151 { | |
| 152 std::auto_ptr<Orthanc::ImageAccessor> raii(image); | |
| 153 | |
| 154 if (image == NULL) | |
| 155 { | |
| 156 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 157 } | |
| 158 | |
| 159 if (image->GetFormat() != Orthanc::PixelFormat_Grayscale8) | |
| 160 { | |
| 161 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
| 162 } | |
| 163 | |
| 164 SetSize(image->GetWidth(), image->GetHeight()); | |
| 165 alpha_ = raii; | |
| 166 } | |
| 167 | |
| 168 | |
| 169 void LoadText(const Orthanc::Font& font, | |
| 170 const std::string& utf8) | |
| 171 { | |
| 172 SetAlpha(font.RenderAlpha(utf8)); | |
| 173 } | |
| 174 | |
| 175 | |
| 176 virtual bool GetDefaultWindowing(float& center, | |
| 177 float& width) const | |
| 178 { | |
| 179 return false; | |
| 180 } | |
| 181 | |
| 182 | |
| 183 virtual void Render(Orthanc::ImageAccessor& buffer, | |
| 409 | 184 const AffineTransform2D& viewTransform, |
| 408 | 185 ImageInterpolation interpolation) const |
| 186 { | |
| 187 if (alpha_.get() == NULL) | |
| 188 { | |
| 189 return; | |
| 190 } | |
| 191 | |
| 192 if (buffer.GetFormat() != Orthanc::PixelFormat_Float32) | |
| 193 { | |
| 194 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
| 195 } | |
| 196 | |
| 197 unsigned int cropX, cropY, cropWidth, cropHeight; | |
| 198 GetCrop(cropX, cropY, cropWidth, cropHeight); | |
| 199 | |
| 409 | 200 const AffineTransform2D t = AffineTransform2D::Combine( |
| 201 viewTransform, GetTransform(), | |
| 202 AffineTransform2D::CreateOffset(cropX, cropY)); | |
| 408 | 203 |
| 204 Orthanc::ImageAccessor cropped; | |
| 205 alpha_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight); | |
| 206 | |
| 207 Orthanc::Image tmp(Orthanc::PixelFormat_Grayscale8, buffer.GetWidth(), buffer.GetHeight(), false); | |
| 409 | 208 |
| 209 t.Apply(tmp, cropped, interpolation, true /* clear */); | |
| 408 | 210 |
| 211 // Blit | |
| 212 const unsigned int width = buffer.GetWidth(); | |
| 213 const unsigned int height = buffer.GetHeight(); | |
| 214 | |
| 215 float value = foreground_; | |
| 216 | |
| 217 if (useWindowing_) | |
| 218 { | |
| 219 float center, width; | |
| 220 if (scene_.GetWindowing(center, width)) | |
| 221 { | |
| 222 value = center + width / 2.0f; | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 for (unsigned int y = 0; y < height; y++) | |
| 227 { | |
| 228 float *q = reinterpret_cast<float*>(buffer.GetRow(y)); | |
| 229 const uint8_t *p = reinterpret_cast<uint8_t*>(tmp.GetRow(y)); | |
| 230 | |
| 231 for (unsigned int x = 0; x < width; x++, p++, q++) | |
| 232 { | |
| 233 float a = static_cast<float>(*p) / 255.0f; | |
| 234 | |
| 235 *q = (a * value + (1.0f - a) * (*q)); | |
| 236 } | |
| 237 } | |
| 238 } | |
| 239 | |
| 240 | |
| 241 virtual bool GetRange(float& minValue, | |
| 242 float& maxValue) const | |
| 243 { | |
| 244 if (useWindowing_) | |
| 245 { | |
| 246 return false; | |
| 247 } | |
| 248 else | |
| 249 { | |
| 250 minValue = 0; | |
| 251 maxValue = 0; | |
| 252 | |
| 253 if (foreground_ < 0) | |
| 254 { | |
| 255 minValue = foreground_; | |
| 256 } | |
| 257 | |
| 258 if (foreground_ > 0) | |
| 259 { | |
| 260 maxValue = foreground_; | |
| 261 } | |
| 262 | |
| 263 return true; | |
| 264 } | |
| 265 } | |
| 266 }; | |
| 267 | |
| 268 | |
| 269 | |
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270 class RadiographyScene::DicomLayer : public RadiographyLayer |
| 408 | 271 { |
| 272 private: | |
| 273 std::auto_ptr<Orthanc::ImageAccessor> source_; // Content of PixelData | |
| 274 std::auto_ptr<DicomFrameConverter> converter_; | |
| 275 std::auto_ptr<Orthanc::ImageAccessor> converted_; // Float32 | |
| 276 | |
| 277 static OrthancPlugins::DicomTag ConvertTag(const Orthanc::DicomTag& tag) | |
| 278 { | |
| 279 return OrthancPlugins::DicomTag(tag.GetGroup(), tag.GetElement()); | |
| 280 } | |
| 281 | |
| 282 | |
| 283 void ApplyConverter() | |
| 284 { | |
| 285 if (source_.get() != NULL && | |
| 286 converter_.get() != NULL) | |
| 287 { | |
| 288 converted_.reset(converter_->ConvertFrame(*source_)); | |
| 289 } | |
| 290 } | |
| 291 | |
| 292 public: | |
| 293 void SetDicomTags(const OrthancPlugins::FullOrthancDataset& dataset) | |
| 294 { | |
| 295 converter_.reset(new DicomFrameConverter); | |
| 296 converter_->ReadParameters(dataset); | |
| 297 ApplyConverter(); | |
| 298 | |
| 299 std::string tmp; | |
| 300 Vector pixelSpacing; | |
| 301 | |
| 302 if (dataset.GetStringValue(tmp, ConvertTag(Orthanc::DICOM_TAG_PIXEL_SPACING)) && | |
| 303 LinearAlgebra::ParseVector(pixelSpacing, tmp) && | |
| 304 pixelSpacing.size() == 2) | |
| 305 { | |
| 306 SetPixelSpacing(pixelSpacing[0], pixelSpacing[1]); | |
| 307 } | |
| 308 | |
| 309 //SetPan(-0.5 * GetPixelSpacingX(), -0.5 * GetPixelSpacingY()); | |
| 310 | |
| 311 OrthancPlugins::DicomDatasetReader reader(dataset); | |
| 312 | |
| 313 unsigned int width, height; | |
| 314 if (!reader.GetUnsignedIntegerValue(width, ConvertTag(Orthanc::DICOM_TAG_COLUMNS)) || | |
| 315 !reader.GetUnsignedIntegerValue(height, ConvertTag(Orthanc::DICOM_TAG_ROWS))) | |
| 316 { | |
| 317 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 318 } | |
| 319 else | |
| 320 { | |
| 321 SetSize(width, height); | |
| 322 } | |
| 323 } | |
| 324 | |
| 325 | |
| 326 void SetSourceImage(Orthanc::ImageAccessor* image) // Takes ownership | |
| 327 { | |
| 328 std::auto_ptr<Orthanc::ImageAccessor> raii(image); | |
| 329 | |
| 330 if (image == NULL) | |
| 331 { | |
| 332 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 333 } | |
| 334 | |
| 335 SetSize(image->GetWidth(), image->GetHeight()); | |
| 336 | |
| 337 source_ = raii; | |
| 338 ApplyConverter(); | |
| 339 } | |
| 340 | |
| 341 | |
| 342 virtual void Render(Orthanc::ImageAccessor& buffer, | |
| 409 | 343 const AffineTransform2D& viewTransform, |
| 408 | 344 ImageInterpolation interpolation) const |
| 345 { | |
| 346 if (converted_.get() != NULL) | |
| 347 { | |
| 348 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32) | |
| 349 { | |
| 350 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 351 } | |
| 352 | |
| 353 unsigned int cropX, cropY, cropWidth, cropHeight; | |
| 354 GetCrop(cropX, cropY, cropWidth, cropHeight); | |
| 355 | |
| 409 | 356 AffineTransform2D t = AffineTransform2D::Combine( |
| 357 viewTransform, GetTransform(), | |
| 358 AffineTransform2D::CreateOffset(cropX, cropY)); | |
| 408 | 359 |
| 360 Orthanc::ImageAccessor cropped; | |
| 361 converted_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight); | |
| 362 | |
| 409 | 363 t.Apply(buffer, cropped, interpolation, false); |
| 408 | 364 } |
| 365 } | |
| 366 | |
| 367 | |
| 368 virtual bool GetDefaultWindowing(float& center, | |
| 369 float& width) const | |
| 370 { | |
| 371 if (converter_.get() != NULL && | |
| 372 converter_->HasDefaultWindow()) | |
| 373 { | |
| 374 center = static_cast<float>(converter_->GetDefaultWindowCenter()); | |
| 375 width = static_cast<float>(converter_->GetDefaultWindowWidth()); | |
| 376 return true; | |
| 377 } | |
| 378 else | |
| 379 { | |
| 380 return false; | |
| 381 } | |
| 382 } | |
| 383 | |
| 384 | |
| 385 virtual bool GetRange(float& minValue, | |
| 386 float& maxValue) const | |
| 387 { | |
| 388 if (converted_.get() != NULL) | |
| 389 { | |
| 390 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32) | |
| 391 { | |
| 392 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 393 } | |
| 394 | |
| 395 Orthanc::ImageProcessing::GetMinMaxFloatValue(minValue, maxValue, *converted_); | |
| 396 return true; | |
| 397 } | |
| 398 else | |
| 399 { | |
| 400 return false; | |
| 401 } | |
| 402 } | |
| 403 }; | |
| 404 | |
| 405 | |
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parents:
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diff
changeset
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406 RadiographyLayer& RadiographyScene::RegisterLayer(RadiographyLayer* layer) |
| 408 | 407 { |
| 408 if (layer == NULL) | |
| 409 { | |
| 410 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 411 } | |
| 412 | |
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diff
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413 std::auto_ptr<RadiographyLayer> raii(layer); |
| 408 | 414 |
| 415 size_t index = countLayers_++; | |
| 416 raii->SetIndex(index); | |
| 417 layers_[index] = raii.release(); | |
| 418 | |
| 419 EmitMessage(GeometryChangedMessage(*this)); | |
| 420 EmitMessage(ContentChangedMessage(*this)); | |
| 421 | |
| 422 return *layer; | |
| 423 } | |
| 424 | |
| 425 | |
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426 RadiographyScene::RadiographyScene(MessageBroker& broker) : |
| 408 | 427 IObserver(broker), |
| 428 IObservable(broker), | |
| 429 countLayers_(0), | |
| 430 hasWindowing_(false), | |
| 431 windowingCenter_(0), // Dummy initialization | |
| 432 windowingWidth_(0) // Dummy initialization | |
| 433 { | |
| 434 } | |
| 435 | |
| 436 | |
| 437 RadiographyScene::~RadiographyScene() | |
| 438 { | |
| 439 for (Layers::iterator it = layers_.begin(); it != layers_.end(); it++) | |
| 440 { | |
| 441 assert(it->second != NULL); | |
| 442 delete it->second; | |
| 443 } | |
| 444 } | |
| 445 | |
| 446 | |
| 447 bool RadiographyScene::GetWindowing(float& center, | |
| 448 float& width) const | |
| 449 { | |
| 450 if (hasWindowing_) | |
| 451 { | |
| 452 center = windowingCenter_; | |
| 453 width = windowingWidth_; | |
| 454 return true; | |
| 455 } | |
| 456 else | |
| 457 { | |
| 458 return false; | |
| 459 } | |
| 460 } | |
| 461 | |
| 462 | |
| 463 void RadiographyScene::GetWindowingWithDefault(float& center, | |
| 464 float& width) const | |
| 465 { | |
| 466 if (!GetWindowing(center, width)) | |
| 467 { | |
| 468 center = 128; | |
| 469 width = 256; | |
| 470 } | |
| 471 } | |
| 472 | |
| 473 | |
| 474 void RadiographyScene::SetWindowing(float center, | |
| 475 float width) | |
| 476 { | |
| 477 hasWindowing_ = true; | |
| 478 windowingCenter_ = center; | |
| 479 windowingWidth_ = width; | |
| 480 } | |
| 481 | |
| 482 | |
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parents:
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diff
changeset
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483 RadiographyLayer& RadiographyScene::LoadText(const Orthanc::Font& font, |
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parents:
409
diff
changeset
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484 const std::string& utf8) |
| 408 | 485 { |
| 486 std::auto_ptr<AlphaLayer> alpha(new AlphaLayer(*this)); | |
| 487 alpha->LoadText(font, utf8); | |
| 488 | |
| 489 return RegisterLayer(alpha.release()); | |
| 490 } | |
| 491 | |
| 492 | |
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493 RadiographyLayer& RadiographyScene::LoadTestBlock(unsigned int width, |
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494 unsigned int height) |
| 408 | 495 { |
| 496 std::auto_ptr<Orthanc::Image> block(new Orthanc::Image(Orthanc::PixelFormat_Grayscale8, width, height, false)); | |
| 497 | |
| 498 for (unsigned int padding = 0; | |
| 499 (width > 2 * padding) && (height > 2 * padding); | |
| 500 padding++) | |
| 501 { | |
| 502 uint8_t color; | |
| 503 if (255 > 10 * padding) | |
| 504 { | |
| 505 color = 255 - 10 * padding; | |
| 506 } | |
| 507 else | |
| 508 { | |
| 509 color = 0; | |
| 510 } | |
| 511 | |
| 512 Orthanc::ImageAccessor region; | |
| 513 block->GetRegion(region, padding, padding, width - 2 * padding, height - 2 * padding); | |
| 514 Orthanc::ImageProcessing::Set(region, color); | |
| 515 } | |
| 516 | |
| 517 std::auto_ptr<AlphaLayer> alpha(new AlphaLayer(*this)); | |
| 518 alpha->SetAlpha(block.release()); | |
| 519 | |
| 520 return RegisterLayer(alpha.release()); | |
| 521 } | |
| 522 | |
| 523 | |
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524 RadiographyLayer& RadiographyScene::LoadDicomFrame(OrthancApiClient& orthanc, |
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525 const std::string& instance, |
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526 unsigned int frame, |
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527 bool httpCompression) |
| 408 | 528 { |
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529 RadiographyLayer& layer = RegisterLayer(new DicomLayer); |
| 408 | 530 |
| 531 { | |
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532 IWebService::HttpHeaders headers; |
| 408 | 533 std::string uri = "/instances/" + instance + "/tags"; |
| 534 | |
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535 orthanc.GetBinaryAsync( |
| 408 | 536 uri, headers, |
| 537 new Callable<RadiographyScene, OrthancApiClient::BinaryResponseReadyMessage> | |
| 538 (*this, &RadiographyScene::OnTagsReceived), NULL, | |
| 539 new Orthanc::SingleValueObject<size_t>(layer.GetIndex())); | |
| 540 } | |
| 541 | |
| 542 { | |
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543 IWebService::HttpHeaders headers; |
| 408 | 544 headers["Accept"] = "image/x-portable-arbitrarymap"; |
| 545 | |
| 546 if (httpCompression) | |
| 547 { | |
| 548 headers["Accept-Encoding"] = "gzip"; | |
| 549 } | |
| 550 | |
| 551 std::string uri = ("/instances/" + instance + "/frames/" + | |
| 552 boost::lexical_cast<std::string>(frame) + "/image-uint16"); | |
| 553 | |
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554 orthanc.GetBinaryAsync( |
| 408 | 555 uri, headers, |
| 556 new Callable<RadiographyScene, OrthancApiClient::BinaryResponseReadyMessage> | |
| 557 (*this, &RadiographyScene::OnFrameReceived), NULL, | |
| 558 new Orthanc::SingleValueObject<size_t>(layer.GetIndex())); | |
| 559 } | |
| 560 | |
| 561 return layer; | |
| 562 } | |
| 563 | |
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564 |
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565 RadiographyLayer& RadiographyScene::LoadDicomWebFrame(IWebService& web) |
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566 { |
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567 RadiographyLayer& layer = RegisterLayer(new DicomLayer); |
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568 |
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569 |
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570 return layer; |
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571 } |
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572 |
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573 |
| 408 | 574 |
| 575 void RadiographyScene::OnTagsReceived(const OrthancApiClient::BinaryResponseReadyMessage& message) | |
| 576 { | |
| 577 size_t index = dynamic_cast<const Orthanc::SingleValueObject<size_t>&> | |
| 578 (message.GetPayload()).GetValue(); | |
| 579 | |
| 580 LOG(INFO) << "JSON received: " << message.GetUri().c_str() | |
| 581 << " (" << message.GetAnswerSize() << " bytes) for layer " << index; | |
| 582 | |
| 583 Layers::iterator layer = layers_.find(index); | |
| 584 if (layer != layers_.end()) | |
| 585 { | |
| 586 assert(layer->second != NULL); | |
| 587 | |
| 588 OrthancPlugins::FullOrthancDataset dicom(message.GetAnswer(), message.GetAnswerSize()); | |
| 589 dynamic_cast<DicomLayer*>(layer->second)->SetDicomTags(dicom); | |
| 590 | |
| 591 float c, w; | |
| 592 if (!hasWindowing_ && | |
| 593 layer->second->GetDefaultWindowing(c, w)) | |
| 594 { | |
| 595 hasWindowing_ = true; | |
| 596 windowingCenter_ = c; | |
| 597 windowingWidth_ = w; | |
| 598 } | |
| 599 | |
| 600 EmitMessage(GeometryChangedMessage(*this)); | |
| 601 } | |
| 602 } | |
| 603 | |
| 604 | |
| 605 void RadiographyScene::OnFrameReceived(const OrthancApiClient::BinaryResponseReadyMessage& message) | |
| 606 { | |
| 607 size_t index = dynamic_cast<const Orthanc::SingleValueObject<size_t>&>(message.GetPayload()).GetValue(); | |
| 608 | |
| 609 LOG(INFO) << "DICOM frame received: " << message.GetUri().c_str() | |
| 610 << " (" << message.GetAnswerSize() << " bytes) for layer " << index; | |
| 611 | |
| 612 Layers::iterator layer = layers_.find(index); | |
| 613 if (layer != layers_.end()) | |
| 614 { | |
| 615 assert(layer->second != NULL); | |
| 616 | |
| 617 std::string content; | |
| 618 if (message.GetAnswerSize() > 0) | |
| 619 { | |
| 620 content.assign(reinterpret_cast<const char*>(message.GetAnswer()), message.GetAnswerSize()); | |
| 621 } | |
| 622 | |
| 623 std::auto_ptr<Orthanc::PamReader> reader(new Orthanc::PamReader); | |
| 624 reader->ReadFromMemory(content); | |
| 625 dynamic_cast<DicomLayer*>(layer->second)->SetSourceImage(reader.release()); | |
| 626 | |
| 627 EmitMessage(ContentChangedMessage(*this)); | |
| 628 } | |
| 629 } | |
| 630 | |
| 631 | |
| 632 Extent2D RadiographyScene::GetSceneExtent() const | |
| 633 { | |
| 634 Extent2D extent; | |
| 635 | |
| 636 for (Layers::const_iterator it = layers_.begin(); | |
| 637 it != layers_.end(); ++it) | |
| 638 { | |
| 639 assert(it->second != NULL); | |
| 640 extent.Union(it->second->GetExtent()); | |
| 641 } | |
| 642 | |
| 643 return extent; | |
| 644 } | |
| 645 | |
| 646 | |
| 647 void RadiographyScene::Render(Orthanc::ImageAccessor& buffer, | |
| 409 | 648 const AffineTransform2D& viewTransform, |
| 408 | 649 ImageInterpolation interpolation) const |
| 650 { | |
| 651 Orthanc::ImageProcessing::Set(buffer, 0); | |
| 652 | |
| 653 // Render layers in the background-to-foreground order | |
| 654 for (size_t index = 0; index < countLayers_; index++) | |
| 655 { | |
| 656 Layers::const_iterator it = layers_.find(index); | |
| 657 if (it != layers_.end()) | |
| 658 { | |
| 659 assert(it->second != NULL); | |
| 660 it->second->Render(buffer, viewTransform, interpolation); | |
| 661 } | |
| 662 } | |
| 663 } | |
| 664 | |
| 665 | |
| 666 bool RadiographyScene::LookupLayer(size_t& index /* out */, | |
| 667 double x, | |
| 668 double y) const | |
| 669 { | |
| 670 // Render layers in the foreground-to-background order | |
| 671 for (size_t i = countLayers_; i > 0; i--) | |
| 672 { | |
| 673 index = i - 1; | |
| 674 Layers::const_iterator it = layers_.find(index); | |
| 675 if (it != layers_.end()) | |
| 676 { | |
| 677 assert(it->second != NULL); | |
| 678 if (it->second->Contains(x, y)) | |
| 679 { | |
| 680 return true; | |
| 681 } | |
| 682 } | |
| 683 } | |
| 684 | |
| 685 return false; | |
| 686 } | |
| 687 | |
| 688 | |
| 689 void RadiographyScene::DrawBorder(CairoContext& context, | |
| 690 unsigned int layer, | |
| 691 double zoom) | |
| 692 { | |
| 693 Layers::const_iterator found = layers_.find(layer); | |
| 694 | |
| 695 if (found != layers_.end()) | |
| 696 { | |
| 697 context.SetSourceColor(255, 0, 0); | |
| 698 found->second->DrawBorders(context, zoom); | |
| 699 } | |
| 700 } | |
| 701 | |
| 702 | |
| 703 void RadiographyScene::GetRange(float& minValue, | |
| 704 float& maxValue) const | |
| 705 { | |
| 706 bool first = true; | |
| 707 | |
| 708 for (Layers::const_iterator it = layers_.begin(); | |
| 709 it != layers_.end(); it++) | |
| 710 { | |
| 711 assert(it->second != NULL); | |
| 712 | |
| 713 float a, b; | |
| 714 if (it->second->GetRange(a, b)) | |
| 715 { | |
| 716 if (first) | |
| 717 { | |
| 718 minValue = a; | |
| 719 maxValue = b; | |
| 720 first = false; | |
| 721 } | |
| 722 else | |
| 723 { | |
| 724 minValue = std::min(a, minValue); | |
| 725 maxValue = std::max(b, maxValue); | |
| 726 } | |
| 727 } | |
| 728 } | |
| 729 | |
| 730 if (first) | |
| 731 { | |
| 732 minValue = 0; | |
| 733 maxValue = 0; | |
| 734 } | |
| 735 } | |
| 736 | |
| 737 | |
| 738 // Export using PAM is faster than using PNG, but requires Orthanc | |
| 739 // core >= 1.4.3 | |
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740 void RadiographyScene::ExportDicom(OrthancApiClient& orthanc, |
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741 const Orthanc::DicomMap& dicom, |
| 408 | 742 double pixelSpacingX, |
| 743 double pixelSpacingY, | |
| 744 bool invert, | |
| 745 ImageInterpolation interpolation, | |
| 746 bool usePam) | |
| 747 { | |
| 748 if (pixelSpacingX <= 0 || | |
| 749 pixelSpacingY <= 0) | |
| 750 { | |
| 751 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 752 } | |
| 753 | |
| 754 LOG(INFO) << "Exporting DICOM"; | |
| 755 | |
| 756 Extent2D extent = GetSceneExtent(); | |
| 757 | |
| 758 int w = std::ceil(extent.GetWidth() / pixelSpacingX); | |
| 759 int h = std::ceil(extent.GetHeight() / pixelSpacingY); | |
| 760 | |
| 761 if (w < 0 || h < 0) | |
| 762 { | |
| 763 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 764 } | |
| 765 | |
| 766 Orthanc::Image layers(Orthanc::PixelFormat_Float32, | |
| 767 static_cast<unsigned int>(w), | |
| 768 static_cast<unsigned int>(h), false); | |
| 769 | |
| 409 | 770 AffineTransform2D view = AffineTransform2D::Combine( |
| 771 AffineTransform2D::CreateScaling(1.0 / pixelSpacingX, 1.0 / pixelSpacingY), | |
| 772 AffineTransform2D::CreateOffset(-extent.GetX1(), -extent.GetY1())); | |
| 408 | 773 |
| 774 Render(layers, view, interpolation); | |
| 775 | |
| 776 Orthanc::Image rendered(Orthanc::PixelFormat_Grayscale16, | |
| 777 layers.GetWidth(), layers.GetHeight(), false); | |
| 778 Orthanc::ImageProcessing::Convert(rendered, layers); | |
| 779 | |
| 780 std::string base64; | |
| 781 | |
| 782 { | |
| 783 std::string content; | |
| 784 | |
| 785 if (usePam) | |
| 786 { | |
| 787 Orthanc::PamWriter writer; | |
| 788 writer.WriteToMemory(content, rendered); | |
| 789 } | |
| 790 else | |
| 791 { | |
| 792 Orthanc::PngWriter writer; | |
| 793 writer.WriteToMemory(content, rendered); | |
| 794 } | |
| 795 | |
| 796 Orthanc::Toolbox::EncodeBase64(base64, content); | |
| 797 } | |
| 798 | |
| 799 std::set<Orthanc::DicomTag> tags; | |
| 800 dicom.GetTags(tags); | |
| 801 | |
| 802 Json::Value json = Json::objectValue; | |
| 803 json["Tags"] = Json::objectValue; | |
| 804 | |
| 805 for (std::set<Orthanc::DicomTag>::const_iterator | |
| 806 tag = tags.begin(); tag != tags.end(); ++tag) | |
| 807 { | |
| 808 const Orthanc::DicomValue& value = dicom.GetValue(*tag); | |
| 809 if (!value.IsNull() && | |
| 810 !value.IsBinary()) | |
| 811 { | |
| 812 json["Tags"][tag->Format()] = value.GetContent(); | |
| 813 } | |
| 814 } | |
| 815 | |
| 816 json["Tags"][Orthanc::DICOM_TAG_PHOTOMETRIC_INTERPRETATION.Format()] = | |
| 817 (invert ? "MONOCHROME1" : "MONOCHROME2"); | |
| 818 | |
| 819 // WARNING: The order of PixelSpacing is Y/X. We use "%0.8f" to | |
| 820 // avoid floating-point numbers to grow over 16 characters, | |
| 821 // which would be invalid according to DICOM standard | |
| 822 // ("dciodvfy" would complain). | |
| 823 char buf[32]; | |
| 824 sprintf(buf, "%0.8f\\%0.8f", pixelSpacingY, pixelSpacingX); | |
| 825 | |
| 826 json["Tags"][Orthanc::DICOM_TAG_PIXEL_SPACING.Format()] = buf; | |
| 827 | |
| 828 float center, width; | |
| 829 if (GetWindowing(center, width)) | |
| 830 { | |
| 831 json["Tags"][Orthanc::DICOM_TAG_WINDOW_CENTER.Format()] = | |
| 832 boost::lexical_cast<std::string>(boost::math::iround(center)); | |
| 833 | |
| 834 json["Tags"][Orthanc::DICOM_TAG_WINDOW_WIDTH.Format()] = | |
| 835 boost::lexical_cast<std::string>(boost::math::iround(width)); | |
| 836 } | |
| 837 | |
| 838 // This is Data URI scheme: https://en.wikipedia.org/wiki/Data_URI_scheme | |
| 839 json["Content"] = ("data:" + | |
| 840 std::string(usePam ? Orthanc::MIME_PAM : Orthanc::MIME_PNG) + | |
| 841 ";base64," + base64); | |
| 842 | |
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843 orthanc.PostJsonAsyncExpectJson( |
| 408 | 844 "/tools/create-dicom", json, |
| 845 new Callable<RadiographyScene, OrthancApiClient::JsonResponseReadyMessage> | |
| 846 (*this, &RadiographyScene::OnDicomExported), | |
| 847 NULL, NULL); | |
| 848 } | |
| 849 | |
| 850 | |
| 851 void RadiographyScene::OnDicomExported(const OrthancApiClient::JsonResponseReadyMessage& message) | |
| 852 { | |
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853 LOG(INFO) << "DICOM export was successful: " |
| 408 | 854 << message.GetJson().toStyledString(); |
| 855 } | |
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856 |
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858 void RadiographyScene::OnDicomWebReceived(const IWebService::HttpRequestSuccessMessage& message) |
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859 { |
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860 LOG(INFO) << "DICOMweb WADO-RS received: " << message.GetAnswerSize() << " bytes"; |
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861 } |
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862 |
| 408 | 863 } |