Mercurial > hg > orthanc-stone
annotate Framework/Layers/SeriesFrameRendererFactory.cpp @ 418:c23df8b3433b
refactoring
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 15 Nov 2018 18:32:48 +0100 |
| parents | 5412adf19980 |
| children | b70e9be013e4 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 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. | |
| 0 | 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 | |
| 47 | 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 | |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "SeriesFrameRendererFactory.h" | |
| 23 | |
| 24 #include "FrameRenderer.h" | |
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25 |
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26 #include <OrthancException.h> |
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27 #include <Logging.h> |
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28 #include <Toolbox.h> |
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29 #include <Plugins/Samples/Common/OrthancPluginException.h> |
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30 #include <Plugins/Samples/Common/DicomDatasetReader.h> |
| 32 | 31 |
| 0 | 32 |
| 33 namespace OrthancStone | |
| 34 { | |
| 35 void SeriesFrameRendererFactory::ReadCurrentFrameDataset(size_t frame) | |
| 36 { | |
| 37 if (currentDataset_.get() != NULL && | |
| 38 (fast_ || currentFrame_ == frame)) | |
| 39 { | |
| 40 // The frame has not changed since the previous call, no need to | |
| 41 // update the DICOM dataset | |
| 42 return; | |
| 43 } | |
| 44 | |
| 45 currentDataset_.reset(loader_->DownloadDicom(frame)); | |
| 46 currentFrame_ = frame; | |
| 47 | |
| 48 if (currentDataset_.get() == NULL) | |
| 49 { | |
| 50 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 51 } | |
| 52 } | |
| 53 | |
| 54 | |
| 55 void SeriesFrameRendererFactory::GetCurrentPixelSpacing(double& spacingX, | |
| 56 double& spacingY) const | |
| 57 { | |
| 58 if (currentDataset_.get() == NULL) | |
| 59 { | |
| 60 // There was no previous call "ReadCurrentFrameDataset()" | |
| 61 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 62 } | |
| 63 | |
| 32 | 64 GeometryToolbox::GetPixelSpacing(spacingX, spacingY, *currentDataset_); |
| 0 | 65 } |
| 66 | |
| 67 | |
| 68 double SeriesFrameRendererFactory::GetCurrentSliceThickness() const | |
| 69 { | |
| 70 if (currentDataset_.get() == NULL) | |
| 71 { | |
| 72 // There was no previous call "ReadCurrentFrameDataset()" | |
| 73 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 74 } | |
| 32 | 75 |
| 76 try | |
| 0 | 77 { |
| 32 | 78 OrthancPlugins::DicomDatasetReader reader(*currentDataset_); |
| 79 | |
| 80 double thickness; | |
| 81 if (reader.GetDoubleValue(thickness, OrthancPlugins::DICOM_TAG_SLICE_THICKNESS)) | |
| 82 { | |
| 83 return thickness; | |
| 84 } | |
| 0 | 85 } |
| 32 | 86 catch (ORTHANC_PLUGINS_EXCEPTION_CLASS& e) |
| 0 | 87 { |
| 88 } | |
| 32 | 89 |
| 90 // Some arbitrary large slice thickness | |
| 91 return std::numeric_limits<double>::infinity(); | |
| 0 | 92 } |
| 93 | |
| 94 | |
| 95 SeriesFrameRendererFactory::SeriesFrameRendererFactory(ISeriesLoader* loader, // Takes ownership | |
| 96 bool fast) : | |
| 97 loader_(loader), | |
| 98 currentFrame_(0), | |
| 99 fast_(fast) | |
| 100 { | |
| 101 if (loader == NULL) | |
| 102 { | |
| 103 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 104 } | |
| 105 } | |
| 106 | |
| 107 | |
| 108 bool SeriesFrameRendererFactory::GetExtent(double& x1, | |
| 109 double& y1, | |
| 110 double& x2, | |
| 111 double& y2, | |
| 112 const SliceGeometry& viewportSlice) | |
| 113 { | |
| 114 if (currentDataset_.get() == NULL) | |
| 115 { | |
| 116 // There has been no previous call to | |
| 117 // "CreateLayerRenderer". Read some arbitrary DICOM frame, the | |
| 118 // one at the middle of the series. | |
| 119 unsigned int depth = loader_->GetGeometry().GetSliceCount(); | |
| 120 ReadCurrentFrameDataset(depth / 2); | |
| 121 } | |
| 122 | |
| 123 double spacingX, spacingY; | |
| 124 GetCurrentPixelSpacing(spacingX, spacingY); | |
| 125 | |
| 126 return FrameRenderer::ComputeFrameExtent(x1, y1, x2, y2, | |
| 127 viewportSlice, | |
| 128 loader_->GetGeometry().GetSlice(0), | |
| 129 loader_->GetWidth(), | |
| 130 loader_->GetHeight(), | |
| 131 spacingX, spacingY); | |
| 132 } | |
| 133 | |
| 134 | |
| 135 ILayerRenderer* SeriesFrameRendererFactory::CreateLayerRenderer(const SliceGeometry& viewportSlice) | |
| 136 { | |
| 137 size_t closest; | |
| 138 double distance; | |
| 139 | |
| 140 bool isOpposite; | |
| 141 if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, loader_->GetGeometry().GetNormal(), viewportSlice.GetNormal()) || | |
| 142 !loader_->GetGeometry().ComputeClosestSlice(closest, distance, viewportSlice.GetOrigin())) | |
| 143 { | |
| 144 // Unable to compute the slice in the series that is the | |
| 145 // closest to the slice displayed by the viewport | |
| 146 return NULL; | |
| 147 } | |
| 148 | |
| 149 ReadCurrentFrameDataset(closest); | |
| 150 assert(currentDataset_.get() != NULL); | |
| 151 | |
| 152 double spacingX, spacingY; | |
| 153 GetCurrentPixelSpacing(spacingX, spacingY); | |
| 154 | |
| 155 if (distance <= GetCurrentSliceThickness() / 2.0) | |
| 156 { | |
| 157 SliceGeometry frameSlice(*currentDataset_); | |
| 158 return FrameRenderer::CreateRenderer(loader_->DownloadFrame(closest), | |
| 159 frameSlice, | |
| 160 *currentDataset_, | |
| 161 spacingX, spacingY, | |
| 162 true); | |
| 163 } | |
| 164 else | |
| 165 { | |
| 166 // The closest slice of the series is too far away from the | |
| 167 // slice displayed by the viewport | |
| 168 return NULL; | |
| 169 } | |
| 170 } | |
| 171 | |
| 172 | |
| 173 ISliceableVolume& SeriesFrameRendererFactory::GetSourceVolume() const | |
| 174 { | |
| 175 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 176 } | |
| 177 } |