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annotate OrthancStone/Sources/Loaders/DicomStructureSetLoader.h @ 1949:d3ae6858e77b

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more consistent handling of numberOfFrames
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 15 Jul 2022 16:19:18 +0200
parents 7053b8a0aaec
children 07964689cb0b
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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
1871
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #pragma once
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25
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26 #include "../Toolbox/DicomStructureSet.h"
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27 #include "../Volumes/IVolumeSlicer.h"
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28 #include "../Loaders/ILoadersContext.h"
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29 #include "LoaderStateMachine.h"
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30
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31 #include <vector>
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32
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33 namespace OrthancStone
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34 {
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35 class DicomStructureSetLoader :
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36 public LoaderStateMachine,
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37 public IVolumeSlicer,
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38 public IObservable
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39 {
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40 public:
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41 ORTHANC_STONE_DEFINE_ORIGIN_MESSAGE(__FILE__, __LINE__, StructuresReady, DicomStructureSetLoader);
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42 ORTHANC_STONE_DEFINE_ORIGIN_MESSAGE(__FILE__, __LINE__, StructuresUpdated, DicomStructureSetLoader);
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43
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44 /**
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46 Once the structure set has been loaded (the LoadStructure state), we need to fill it with geometry information
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47 from the referenced slices (tag (0008,1155) described here:
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48 https://dicom.innolitics.com/ciods/rt-structure-set/general-reference/00081140/00081155
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49
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50 This interface allows to customize how this information can be gathered. By default, the RestInstanceLookupHandler
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51 will perform a REST call to the Orthanc API to retrieve this information.
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52
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53 Injecting another implementation of this interface is useful when where this information can be supplied in
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54 another (faster) way (for instance, if a separate loader for the CT series can be used to supply the slice geometry)
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55 */
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56 class IInstanceLookupHandler
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57 {
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58 public:
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59 virtual void RetrieveReferencedSlices(const std::set<std::string>& instances) = 0;
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60 };
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61
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62 // predeclaration of the default IInstanceLookupHandler implementation
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63 class RestInstanceLookupHandler;
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64
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65 static boost::shared_ptr<DicomStructureSetLoader> Create(
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66 ILoadersContext& loadersContext);
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67
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68 void SetInstanceLookupHandler(boost::shared_ptr<IInstanceLookupHandler> instanceLookupHandler)
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69 {
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70 instanceLookupHandler_ = instanceLookupHandler;
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71 }
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72
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73 DicomStructureSet* GetContent()
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74 {
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75 return content_.get();
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76 }
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78 void SetStructureDisplayState(size_t structureIndex, bool display);
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80 bool GetStructureDisplayState(size_t structureIndex) const
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81 {
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82 return structureVisibility_.at(structureIndex);
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83 }
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84
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85 ~DicomStructureSetLoader();
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86
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87 void LoadInstance(const std::string& instanceId,
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88 const std::vector<std::string>& initiallyVisibleStructures = std::vector<std::string>());
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89
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90 void LoadInstanceFullVisibility(const std::string& instanceId);
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92
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93 virtual IExtractedSlice* ExtractSlice(const CoordinateSystem3D& cuttingPlane) ORTHANC_OVERRIDE;
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94
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95 void SetStructuresReady();
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96 void SetStructuresUpdated();
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97
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98 bool AreStructuresReady() const;
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99
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100 /**
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101 Called by the IInstanceLookupHandler when slice referenced instance information is available.
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102 When the last referenced slice is received, this method will perform a final check and will warn observers
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103 */
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104 void AddReferencedSlice(const Orthanc::DicomMap& dicom);
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105
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106 private:
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107 class Slice;
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108
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109 // Only state of LoaderStateMachine
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110 class LoadStructure; // 1st state
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111
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112 ILoadersContext& loadersContext_;
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113 std::unique_ptr<DicomStructureSet> content_;
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114 uint64_t revision_;
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115 std::string instanceId_;
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116 unsigned int countProcessedInstances_;
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117 unsigned int countReferencedInstances_;
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118
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119 // will be set to true once the loading is finished
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120 bool structuresReady_;
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121
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122 /**
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123 At load time, these strings are used to initialize the structureVisibility_
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124 vector.
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125
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126 As a special case, if initiallyVisibleStructures_ contains a single string
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127 that is '*', ALL structures will be made visible.
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128 */
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129 std::vector<std::string> initiallyVisibleStructures_;
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130
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131 /**
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132 Contains the "Should this structure be displayed?" flag for all structures.
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133 Only filled when structures are loaded.
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134
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135 Changing this value directly affects the rendering
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136 */
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137 std::vector<bool> structureVisibility_;
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138
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139
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140 boost::shared_ptr<IInstanceLookupHandler> instanceLookupHandler_;
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141
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142 private:
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143 void RetrieveReferencedSlices(const std::set<std::string>& nonEmptyInstances);
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144
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145 protected:
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146 explicit DicomStructureSetLoader(ILoadersContext& loadersContext);
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147 };
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148 }