Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Toolbox/DicomInstanceParameters.cpp @ 1634:a4418a489e86
improving robustness of DicomInstanceParameters
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 10 Nov 2020 11:11:28 +0100 |
parents | 8563ea5d8ae4 |
children | 1a714e21ea7c |
rev | line source |
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746 | 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) 2017-2020 Osimis S.A., Belgium |
746 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
746 | 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 | |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
746 | 20 **/ |
21 | |
22 | |
23 #include "DicomInstanceParameters.h" | |
24 | |
25 #include "../Scene2D/ColorTextureSceneLayer.h" | |
26 #include "../Scene2D/FloatTextureSceneLayer.h" | |
27 #include "../Toolbox/GeometryToolbox.h" | |
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28 #include "../Toolbox/ImageToolbox.h" |
746 | 29 |
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30 #include <Images/Image.h> |
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31 #include <Images/ImageProcessing.h> |
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32 #include <Logging.h> |
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33 #include <OrthancException.h> |
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34 #include <Toolbox.h> |
746 | 35 |
36 | |
37 namespace OrthancStone | |
38 { | |
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39 void DicomInstanceParameters::Data::ExtractFrameOffsets(const Orthanc::DicomMap& dicom) |
746 | 40 { |
41 // http://dicom.nema.org/medical/Dicom/2016a/output/chtml/part03/sect_C.8.8.3.2.html | |
42 | |
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43 std::string increment; |
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44 |
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45 if (dicom.LookupStringValue(increment, Orthanc::DICOM_TAG_FRAME_INCREMENT_POINTER, false)) |
746 | 46 { |
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47 Orthanc::Toolbox::ToUpperCase(increment); |
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48 if (increment != "3004,000C") // This is the "Grid Frame Offset Vector" tag (DICOM_TAG_GRID_FRAME_OFFSET_VECTOR) |
746 | 49 { |
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50 LOG(WARNING) << "Bad value for the FrameIncrementPointer tags in a multiframe image"; |
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51 return; |
746 | 52 } |
53 } | |
54 | |
55 if (!LinearAlgebra::ParseVector(frameOffsets_, dicom, Orthanc::DICOM_TAG_GRID_FRAME_OFFSET_VECTOR) || | |
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56 frameOffsets_.size() != imageInformation_.GetNumberOfFrames()) |
746 | 57 { |
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58 LOG(INFO) << "The frame offset information is missing in a multiframe image"; |
746 | 59 frameOffsets_.clear(); |
60 } | |
61 } | |
62 | |
63 | |
64 DicomInstanceParameters::Data::Data(const Orthanc::DicomMap& dicom) : | |
65 imageInformation_(dicom) | |
66 { | |
1571 | 67 if (imageInformation_.GetNumberOfFrames() == 0) |
746 | 68 { |
69 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
70 } | |
71 | |
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72 if (!dicom.LookupStringValue(studyInstanceUid_, Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, false) || |
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73 !dicom.LookupStringValue(seriesInstanceUid_, Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, false) || |
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74 !dicom.LookupStringValue(sopInstanceUid_, Orthanc::DICOM_TAG_SOP_INSTANCE_UID, false)) |
746 | 75 { |
76 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
77 } | |
78 | |
79 std::string s; | |
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80 if (!dicom.LookupStringValue(s, Orthanc::DICOM_TAG_SOP_CLASS_UID, false)) |
746 | 81 { |
82 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
83 } | |
84 else | |
85 { | |
86 sopClassUid_ = StringToSopClassUid(s); | |
87 } | |
88 | |
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89 if (!dicom.ParseDouble(sliceThickness_, Orthanc::DICOM_TAG_SLICE_THICKNESS)) |
746 | 90 { |
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91 sliceThickness_ = 100.0 * std::numeric_limits<double>::epsilon(); |
746 | 92 } |
93 | |
94 GeometryToolbox::GetPixelSpacing(pixelSpacingX_, pixelSpacingY_, dicom); | |
95 | |
96 std::string position, orientation; | |
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97 if (dicom.LookupStringValue(position, Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, false) && |
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98 dicom.LookupStringValue(orientation, Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, false)) |
746 | 99 { |
100 geometry_ = CoordinateSystem3D(position, orientation); | |
101 } | |
102 | |
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103 ExtractFrameOffsets(dicom); |
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104 |
746 | 105 if (sopClassUid_ == SopClassUid_RTDose) |
106 { | |
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107 static const Orthanc::DicomTag DICOM_TAG_DOSE_UNITS(0x3004, 0x0002); |
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108 |
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109 if (!dicom.LookupStringValue(doseUnits_, DICOM_TAG_DOSE_UNITS, false)) |
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110 { |
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111 LOG(ERROR) << "Tag DoseUnits (0x3004, 0x0002) is missing in " << sopInstanceUid_; |
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112 doseUnits_.clear(); |
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113 } |
746 | 114 } |
115 | |
116 isColor_ = (imageInformation_.GetPhotometricInterpretation() != Orthanc::PhotometricInterpretation_Monochrome1 && | |
117 imageInformation_.GetPhotometricInterpretation() != Orthanc::PhotometricInterpretation_Monochrome2); | |
118 | |
119 if (dicom.ParseDouble(rescaleIntercept_, Orthanc::DICOM_TAG_RESCALE_INTERCEPT) && | |
120 dicom.ParseDouble(rescaleSlope_, Orthanc::DICOM_TAG_RESCALE_SLOPE)) | |
121 { | |
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122 if (sopClassUid_ == SopClassUid_RTDose) |
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123 { |
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124 LOG(INFO) << "DOSE HAS Rescale*: rescaleIntercept_ = " << rescaleIntercept_ << " rescaleSlope_ = " << rescaleSlope_; |
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125 // WE SHOULD NOT TAKE THE RESCALE VALUE INTO ACCOUNT IN THE CASE OF DOSES |
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126 hasRescale_ = false; |
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127 } |
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128 else |
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129 { |
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130 hasRescale_ = true; |
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131 } |
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132 |
746 | 133 } |
134 else | |
135 { | |
136 hasRescale_ = false; | |
137 } | |
138 | |
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139 if (dicom.ParseDouble(doseGridScaling_, Orthanc::DICOM_TAG_DOSE_GRID_SCALING)) |
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140 { |
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141 if (sopClassUid_ == SopClassUid_RTDose) |
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142 { |
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143 LOG(INFO) << "DOSE HAS DoseGridScaling: doseGridScaling_ = " << doseGridScaling_; |
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144 } |
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145 } |
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146 else |
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147 { |
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148 doseGridScaling_ = 1.0; |
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149 if (sopClassUid_ == SopClassUid_RTDose) |
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150 { |
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151 LOG(ERROR) << "Tag DoseGridScaling (0x3004, 0x000e) is missing in " << sopInstanceUid_ << " doseGridScaling_ will be set to 1.0"; |
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152 } |
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153 } |
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154 |
746 | 155 Vector c, w; |
156 if (LinearAlgebra::ParseVector(c, dicom, Orthanc::DICOM_TAG_WINDOW_CENTER) && | |
157 LinearAlgebra::ParseVector(w, dicom, Orthanc::DICOM_TAG_WINDOW_WIDTH) && | |
158 c.size() > 0 && | |
159 w.size() > 0) | |
160 { | |
161 hasDefaultWindowing_ = true; | |
162 defaultWindowingCenter_ = static_cast<float>(c[0]); | |
163 defaultWindowingWidth_ = static_cast<float>(w[0]); | |
164 } | |
165 else | |
166 { | |
167 hasDefaultWindowing_ = false; | |
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168 defaultWindowingCenter_ = 0; |
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169 defaultWindowingWidth_ = 0; |
746 | 170 } |
171 | |
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172 expectedPixelFormat_ = Orthanc::PixelFormat_Grayscale16; // Rough guess |
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173 |
746 | 174 if (sopClassUid_ == SopClassUid_RTDose) |
175 { | |
176 switch (imageInformation_.GetBitsStored()) | |
177 { | |
178 case 16: | |
179 expectedPixelFormat_ = Orthanc::PixelFormat_Grayscale16; | |
180 break; | |
181 | |
182 case 32: | |
183 expectedPixelFormat_ = Orthanc::PixelFormat_Grayscale32; | |
184 break; | |
185 | |
186 default: | |
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187 break; |
746 | 188 } |
189 } | |
190 else if (isColor_) | |
191 { | |
192 expectedPixelFormat_ = Orthanc::PixelFormat_RGB24; | |
193 } | |
194 else if (imageInformation_.IsSigned()) | |
195 { | |
196 expectedPixelFormat_ = Orthanc::PixelFormat_SignedGrayscale16; | |
197 } | |
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198 |
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199 // This computes the "IndexInSeries" metadata from Orthanc (check |
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200 // out "Orthanc::ServerIndex::Store()") |
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201 hasIndexInSeries_ = ( |
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202 dicom.ParseUnsignedInteger32(indexInSeries_, Orthanc::DICOM_TAG_INSTANCE_NUMBER) || |
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203 dicom.ParseUnsignedInteger32(indexInSeries_, Orthanc::DICOM_TAG_IMAGE_INDEX)); |
746 | 204 } |
205 | |
206 | |
207 CoordinateSystem3D DicomInstanceParameters::Data::GetFrameGeometry(unsigned int frame) const | |
208 { | |
209 if (frame == 0) | |
210 { | |
211 return geometry_; | |
212 } | |
213 else if (frame >= imageInformation_.GetNumberOfFrames()) | |
214 { | |
215 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
216 } | |
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217 else if (frameOffsets_.empty()) |
746 | 218 { |
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219 return geometry_; |
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220 } |
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221 else |
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222 { |
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223 assert(frameOffsets_.size() == imageInformation_.GetNumberOfFrames()); |
746 | 224 |
225 return CoordinateSystem3D( | |
226 geometry_.GetOrigin() + frameOffsets_[frame] * geometry_.GetNormal(), | |
227 geometry_.GetAxisX(), | |
228 geometry_.GetAxisY()); | |
229 } | |
230 } | |
231 | |
232 | |
233 bool DicomInstanceParameters::Data::IsPlaneWithinSlice(unsigned int frame, | |
234 const CoordinateSystem3D& plane) const | |
235 { | |
236 if (frame >= imageInformation_.GetNumberOfFrames()) | |
237 { | |
238 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
239 } | |
240 | |
241 CoordinateSystem3D tmp = geometry_; | |
242 | |
243 if (frame != 0) | |
244 { | |
245 tmp = GetFrameGeometry(frame); | |
246 } | |
247 | |
248 double distance; | |
249 | |
757 | 250 return (CoordinateSystem3D::ComputeDistance(distance, tmp, plane) && |
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251 distance <= sliceThickness_ / 2.0); |
746 | 252 } |
253 | |
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254 void DicomInstanceParameters::Data::ApplyRescaleAndDoseScaling(Orthanc::ImageAccessor& image, |
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255 bool useDouble) const |
746 | 256 { |
257 if (image.GetFormat() != Orthanc::PixelFormat_Float32) | |
258 { | |
259 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
260 } | |
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261 |
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262 double factor = doseGridScaling_; |
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263 double offset = 0.0; |
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264 |
746 | 265 if (hasRescale_) |
266 { | |
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267 factor *= rescaleSlope_; |
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268 offset = rescaleIntercept_; |
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269 } |
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270 |
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271 if (!LinearAlgebra::IsNear(factor, 1) || |
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272 !LinearAlgebra::IsNear(offset, 0)) |
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273 { |
746 | 274 const unsigned int width = image.GetWidth(); |
275 const unsigned int height = image.GetHeight(); | |
276 | |
277 for (unsigned int y = 0; y < height; y++) | |
278 { | |
279 float* p = reinterpret_cast<float*>(image.GetRow(y)); | |
280 | |
281 if (useDouble) | |
282 { | |
283 // Slower, accurate implementation using double | |
284 for (unsigned int x = 0; x < width; x++, p++) | |
285 { | |
286 double value = static_cast<double>(*p); | |
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287 *p = static_cast<float>(value * factor + offset); |
746 | 288 } |
289 } | |
290 else | |
291 { | |
292 // Fast, approximate implementation using float | |
293 for (unsigned int x = 0; x < width; x++, p++) | |
294 { | |
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295 *p = (*p) * static_cast<float>(factor) + static_cast<float>(offset); |
746 | 296 } |
297 } | |
298 } | |
299 } | |
300 } | |
301 | |
302 double DicomInstanceParameters::GetRescaleIntercept() const | |
303 { | |
304 if (data_.hasRescale_) | |
305 { | |
306 return data_.rescaleIntercept_; | |
307 } | |
308 else | |
309 { | |
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310 LOG(ERROR) << "DicomInstanceParameters::GetRescaleIntercept(): !data_.hasRescale_"; |
746 | 311 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
312 } | |
313 } | |
314 | |
315 | |
316 double DicomInstanceParameters::GetRescaleSlope() const | |
317 { | |
318 if (data_.hasRescale_) | |
319 { | |
320 return data_.rescaleSlope_; | |
321 } | |
322 else | |
323 { | |
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324 LOG(ERROR) << "DicomInstanceParameters::GetRescaleSlope(): !data_.hasRescale_"; |
746 | 325 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
326 } | |
327 } | |
328 | |
329 | |
330 float DicomInstanceParameters::GetDefaultWindowingCenter() const | |
331 { | |
332 if (data_.hasDefaultWindowing_) | |
333 { | |
334 return data_.defaultWindowingCenter_; | |
335 } | |
336 else | |
337 { | |
1481 | 338 LOG(ERROR) << "DicomInstanceParameters::GetDefaultWindowingCenter(): no default windowing"; |
746 | 339 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
340 } | |
341 } | |
342 | |
343 | |
344 float DicomInstanceParameters::GetDefaultWindowingWidth() const | |
345 { | |
346 if (data_.hasDefaultWindowing_) | |
347 { | |
348 return data_.defaultWindowingWidth_; | |
349 } | |
350 else | |
351 { | |
1481 | 352 LOG(ERROR) << "DicomInstanceParameters::GetDefaultWindowingWidth(): no default windowing"; |
746 | 353 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
354 } | |
355 } | |
356 | |
357 | |
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358 Orthanc::ImageAccessor* DicomInstanceParameters::ConvertToFloat(const Orthanc::ImageAccessor& pixelData) const |
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359 { |
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360 std::unique_ptr<Orthanc::Image> converted(new Orthanc::Image(Orthanc::PixelFormat_Float32, |
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361 pixelData.GetWidth(), |
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362 pixelData.GetHeight(), |
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363 false)); |
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364 Orthanc::ImageProcessing::Convert(*converted, pixelData); |
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365 |
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366 |
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367 // Correct rescale slope/intercept if need be |
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368 //data_.ApplyRescaleAndDoseScaling(*converted, (pixelData.GetFormat() == Orthanc::PixelFormat_Grayscale32)); |
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369 data_.ApplyRescaleAndDoseScaling(*converted, false); |
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370 |
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371 return converted.release(); |
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372 } |
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373 |
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374 |
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375 TextureBaseSceneLayer* DicomInstanceParameters::CreateTexture |
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376 (const Orthanc::ImageAccessor& pixelData) const |
746 | 377 { |
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378 // { |
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379 // const Orthanc::ImageAccessor& source = pixelData; |
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380 // const void* sourceBuffer = source.GetConstBuffer(); |
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381 // intptr_t sourceBufferInt = reinterpret_cast<intptr_t>(sourceBuffer); |
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382 // int sourceWidth = source.GetWidth(); |
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383 // int sourceHeight = source.GetHeight(); |
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384 // int sourcePitch = source.GetPitch(); |
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385 |
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386 // // TODO: turn error into trace below |
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387 // LOG(ERROR) << "ConvertGrayscaleToFloat | source:" |
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388 // << " W = " << sourceWidth << " H = " << sourceHeight |
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389 // << " P = " << sourcePitch << " B = " << sourceBufferInt |
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390 // << " B % 4 == " << sourceBufferInt % 4; |
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391 // } |
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392 |
746 | 393 assert(sizeof(float) == 4); |
394 | |
395 Orthanc::PixelFormat sourceFormat = pixelData.GetFormat(); | |
396 | |
397 if (sourceFormat != GetExpectedPixelFormat()) | |
398 { | |
399 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
400 } | |
401 | |
402 if (sourceFormat == Orthanc::PixelFormat_RGB24) | |
403 { | |
404 // This is the case of a color image. No conversion has to be done. | |
405 return new ColorTextureSceneLayer(pixelData); | |
406 } | |
407 else | |
408 { | |
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409 // This is the case of a grayscale frame. Convert it to Float32. |
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410 std::unique_ptr<FloatTextureSceneLayer> texture; |
746 | 411 |
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412 if (pixelData.GetFormat() == Orthanc::PixelFormat_Float32) |
746 | 413 { |
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414 texture.reset(new FloatTextureSceneLayer(pixelData)); |
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415 } |
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416 else |
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417 { |
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418 std::unique_ptr<Orthanc::ImageAccessor> converted(ConvertToFloat(pixelData)); |
746 | 419 texture.reset(new FloatTextureSceneLayer(*converted)); |
420 } | |
421 | |
422 if (data_.hasDefaultWindowing_) | |
423 { | |
424 texture->SetCustomWindowing(data_.defaultWindowingCenter_, | |
425 data_.defaultWindowingWidth_); | |
426 } | |
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427 |
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428 switch (data_.imageInformation_.GetPhotometricInterpretation()) |
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429 { |
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430 case Orthanc::PhotometricInterpretation_Monochrome1: |
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431 texture->SetInverted(true); |
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432 break; |
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433 |
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434 case Orthanc::PhotometricInterpretation_Monochrome2: |
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435 texture->SetInverted(false); |
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436 break; |
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437 |
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438 default: |
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439 break; |
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440 } |
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441 |
746 | 442 return texture.release(); |
443 } | |
444 } | |
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445 |
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446 |
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447 LookupTableTextureSceneLayer* DicomInstanceParameters::CreateLookupTableTexture |
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448 (const Orthanc::ImageAccessor& pixelData) const |
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449 { |
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450 std::unique_ptr<FloatTextureSceneLayer> texture; |
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451 |
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452 if (pixelData.GetFormat() == Orthanc::PixelFormat_Float32) |
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453 { |
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diff
changeset
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454 return new LookupTableTextureSceneLayer(pixelData); |
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LookupTableTextureSceneLayer
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diff
changeset
|
455 } |
55411e7da2f7
LookupTableTextureSceneLayer
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parents:
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diff
changeset
|
456 else |
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LookupTableTextureSceneLayer
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parents:
762
diff
changeset
|
457 { |
1298
8a0a62189f46
replacing std::auto_ptr by std::unique_ptr
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1291
diff
changeset
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458 std::unique_ptr<Orthanc::ImageAccessor> converted(ConvertToFloat(pixelData)); |
768
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LookupTableTextureSceneLayer
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diff
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459 return new LookupTableTextureSceneLayer(*converted); |
55411e7da2f7
LookupTableTextureSceneLayer
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parents:
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diff
changeset
|
460 } |
55411e7da2f7
LookupTableTextureSceneLayer
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
762
diff
changeset
|
461 } |
980
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
956
diff
changeset
|
462 |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
463 |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
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464 unsigned int DicomInstanceParameters::GetIndexInSeries() const |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
|
465 { |
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DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
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466 if (data_.hasIndexInSeries_) |
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DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
|
467 { |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
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468 return data_.indexInSeries_; |
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DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
|
469 } |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
|
470 else |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
|
471 { |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
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472 LOG(ERROR) << "DicomInstanceParameters::GetIndexInSeries(): !data_.hasIndexInSeries_"; |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
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473 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
|
474 } |
8e497a4e3d96
DicomInstanceParameters::GetIndexInSeries()
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parents:
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diff
changeset
|
475 } |
1159
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1141
diff
changeset
|
476 |
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1141
diff
changeset
|
477 |
acb399643945
DicomInstanceParameters::ApplyRescale()
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parents:
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diff
changeset
|
478 double DicomInstanceParameters::Data::ApplyRescale(double value) const |
acb399643945
DicomInstanceParameters::ApplyRescale()
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parents:
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diff
changeset
|
479 { |
acb399643945
DicomInstanceParameters::ApplyRescale()
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parents:
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diff
changeset
|
480 double factor = doseGridScaling_; |
acb399643945
DicomInstanceParameters::ApplyRescale()
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parents:
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diff
changeset
|
481 double offset = 0.0; |
acb399643945
DicomInstanceParameters::ApplyRescale()
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parents:
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diff
changeset
|
482 |
acb399643945
DicomInstanceParameters::ApplyRescale()
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parents:
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diff
changeset
|
483 if (hasRescale_) |
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
484 { |
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
485 factor *= rescaleSlope_; |
acb399643945
DicomInstanceParameters::ApplyRescale()
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diff
changeset
|
486 offset = rescaleIntercept_; |
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
487 } |
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1141
diff
changeset
|
488 |
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
489 return (value * factor + offset); |
acb399643945
DicomInstanceParameters::ApplyRescale()
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1141
diff
changeset
|
490 } |
1161
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
491 |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
492 |
19b1c8caade4
fix sagittal geometry
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parents:
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diff
changeset
|
493 bool DicomInstanceParameters::Data::ComputeRegularSpacing(double& spacing) const |
19b1c8caade4
fix sagittal geometry
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parents:
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diff
changeset
|
494 { |
19b1c8caade4
fix sagittal geometry
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parents:
1159
diff
changeset
|
495 if (frameOffsets_.size() == 0) // Not a RT-DOSE |
19b1c8caade4
fix sagittal geometry
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parents:
1159
diff
changeset
|
496 { |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
497 return false; |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
498 } |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
499 else if (frameOffsets_.size() == 1) |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
500 { |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
501 spacing = 1; // Edge case: RT-DOSE with one single frame |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
502 return true; |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
503 } |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
504 else |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
505 { |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
506 spacing = std::abs(frameOffsets_[1] - frameOffsets_[0]); |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
507 |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
508 for (size_t i = 1; i + 1 < frameOffsets_.size(); i++) |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
509 { |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
510 double s = frameOffsets_[i + 1] - frameOffsets_[i]; |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
511 if (!LinearAlgebra::IsNear(spacing, s, 0.001)) |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
512 { |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
513 return false; |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
514 } |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
515 } |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
516 |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
517 return true; |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
518 } |
19b1c8caade4
fix sagittal geometry
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1159
diff
changeset
|
519 } |
746 | 520 } |