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814
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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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 Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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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 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "DicomVolumeImageMPRSlicer.h"
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23
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24 #include <Core/OrthancException.h>
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25
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26 namespace OrthancStone
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27 {
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28 void DicomVolumeImageMPRSlicer::Slice::CheckValid() const
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29 {
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30 if (!valid_)
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31 {
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32 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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33 }
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34 }
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35
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36
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37 DicomVolumeImageMPRSlicer::Slice::Slice(const DicomVolumeImage& volume,
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38 const CoordinateSystem3D& cuttingPlane) :
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39 volume_(volume)
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40 {
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41 valid_ = (volume_.HasDicomParameters() &&
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42 volume_.GetGeometry().DetectSlice(projection_, sliceIndex_, cuttingPlane));
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43 }
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44
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45
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46 VolumeProjection DicomVolumeImageMPRSlicer::Slice::GetProjection() const
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47 {
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48 CheckValid();
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49 return projection_;
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50 }
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51
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52
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53 unsigned int DicomVolumeImageMPRSlicer::Slice::GetSliceIndex() const
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54 {
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55 CheckValid();
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56 return sliceIndex_;
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57 }
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58
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59 uint64_t DicomVolumeImageMPRSlicer::Slice::GetRevision()
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60 {
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61 CheckValid();
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62 return GetRevisionInternal(projection_, sliceIndex_);
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63 }
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64
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65
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66 ISceneLayer* DicomVolumeImageMPRSlicer::Slice::CreateSceneLayer(const ILayerStyleConfigurator* configurator,
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67 const CoordinateSystem3D& cuttingPlane)
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68 {
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69 CheckValid();
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70
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71 if (configurator == NULL)
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72 {
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73 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer,
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74 "A style configurator is mandatory for textures");
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75 }
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76
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77 std::auto_ptr<TextureBaseSceneLayer> texture;
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78
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79 {
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80 const DicomInstanceParameters& parameters = volume_.GetDicomParameters();
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81 ImageBuffer3D::SliceReader reader(volume_.GetPixelData(), projection_, sliceIndex_);
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82 texture.reset(dynamic_cast<TextureBaseSceneLayer*>
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83 (configurator->CreateTextureFromDicom(reader.GetAccessor(), parameters)));
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84 }
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85
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86 const CoordinateSystem3D& system = volume_.GetGeometry().GetProjectionGeometry(projection_);
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87
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88 double x0, y0, x1, y1;
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89 cuttingPlane.ProjectPoint(x0, y0, system.GetOrigin());
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90 cuttingPlane.ProjectPoint(x1, y1, system.GetOrigin() + system.GetAxisX());
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91 texture->SetOrigin(x0, y0);
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92
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93 double dx = x1 - x0;
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94 double dy = y1 - y0;
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95 if (!LinearAlgebra::IsCloseToZero(dx) ||
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96 !LinearAlgebra::IsCloseToZero(dy))
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97 {
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98 texture->SetAngle(atan2(dy, dx));
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99 }
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100
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101 Vector tmp = volume_.GetGeometry().GetVoxelDimensions(projection_);
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102 texture->SetPixelSpacing(tmp[0], tmp[1]);
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103
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104 return texture.release();
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105 }
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106
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107
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108 IVolumeSlicer::IExtractedSlice*
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109 DicomVolumeImageMPRSlicer::ExtractSlice(const CoordinateSystem3D& cuttingPlane)
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110 {
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111 if (volume_->HasGeometry())
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112 {
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113 return new Slice(*volume_, cuttingPlane);
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114 }
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115 else
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116 {
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117 return new IVolumeSlicer::InvalidSlice;
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118 }
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119 }
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120 }
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