Mercurial > hg > orthanc-stone

annotate Framework/Volumes/DicomStructureSetSlicer2.cpp @ 998:38b6bb0bdd72

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added a new set of classes that correctly handle non-convex polygons (not used yet because of limitations in coordinates computing): DicomStructure2, DicomStructureSet2, DicomStructurePolygon2, DicomStructureSetSlicer2. Too many shortcuts have been taken when computing the actual position.
author Benjamin Golinvaux <bgo@osimis.io>
date Fri, 20 Sep 2019 11:58:00 +0200
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children 29f5f2031310
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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 #include "DicomStructureSetSlicer2.h"
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22
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23 #include "../Toolbox/GeometryToolbox.h"
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24 #include "../Volumes/IVolumeSlicer.h"
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25 #include "../Scene2D/PolylineSceneLayer.h"
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26
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27 namespace OrthancStone
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28 {
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29 DicomStructureSetSlicer2::DicomStructureSetSlicer2(boost::shared_ptr<DicomStructureSet2> structureSet)
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30 : structureSet_(structureSet)
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31 {}
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32
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33 IVolumeSlicer::IExtractedSlice* DicomStructureSetSlicer2::ExtractSlice(const CoordinateSystem3D& cuttingPlane)
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34 {
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35 // revision is always the same, hence 0
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36 return new DicomStructureSetSlice2(structureSet_, 0, cuttingPlane);
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37 }
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38
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39 DicomStructureSetSlice2::DicomStructureSetSlice2(
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40 boost::weak_ptr<DicomStructureSet2> structureSet,
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41 uint64_t revision,
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42 const CoordinateSystem3D& cuttingPlane)
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43 : structureSet_(structureSet.lock())
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44 , isValid_(false)
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45 {
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46 bool opposite = false;
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47
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48 if (structureSet_->GetStructuresCount() == 0)
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49 {
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50 isValid_ = false;
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51 }
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52 else
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53 {
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54 // some structures seen in real life have no polygons. We must be
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55 // careful
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56 bool found = false;
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57 size_t curStructure = 0;
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58 while (!found && curStructure < structureSet_->GetStructuresCount())
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59 {
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60 if (structureSet_->GetStructure(curStructure).IsValid())
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61 {
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62 found = true;
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63 const Vector normal = structureSet_->GetStructure(0).GetNormal();
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64 isValid_ = (
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65 GeometryToolbox::IsParallelOrOpposite(opposite, normal, cuttingPlane.GetNormal()) ||
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66 GeometryToolbox::IsParallelOrOpposite(opposite, normal, cuttingPlane.GetAxisX()) ||
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67 GeometryToolbox::IsParallelOrOpposite(opposite, normal, cuttingPlane.GetAxisY()));
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68 }
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69 }
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70 }
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71 }
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72
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73 ISceneLayer* DicomStructureSetSlice2::CreateSceneLayer(
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74 const ILayerStyleConfigurator* configurator,
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75 const CoordinateSystem3D& cuttingPlane)
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76 {
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77 assert(isValid_);
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78
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79 std::auto_ptr<PolylineSceneLayer> layer(new PolylineSceneLayer);
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80 layer->SetThickness(2); // thickness of the on-screen line
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81
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82 for (size_t i = 0; i < structureSet_->GetStructuresCount(); i++)
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83 {
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84 const DicomStructure2& structure = structureSet_->GetStructure(i);
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85 if (structure.IsValid())
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86 {
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87 const Color& color = structure.GetColor();
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88
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89 std::vector< std::pair<Point2D, Point2D> > segments;
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90
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91 if (structure.Project(segments, cuttingPlane))
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92 {
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93 for (size_t j = 0; j < segments.size(); j++)
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94 {
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95 PolylineSceneLayer::Chain chain;
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96 chain.resize(2);
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97
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98 chain[0] = ScenePoint2D(segments[j].first.x, segments[j].first.y);
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99 chain[1] = ScenePoint2D(segments[j].second.x, segments[j].second.y);
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100
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101 layer->AddChain(chain, false /* NOT closed */, color);
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102 }
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103 }
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104 }
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105 }
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106 return layer.release();
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107 }
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108 }
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109