Mercurial > hg > orthanc-stone

annotate Framework/Layers/DicomStructureSetRendererFactory.cpp @ 123:ed0003f6102c wasm

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dynamic loading of rt-struct renderers
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 07 Oct 2017 13:11:12 +0200
parents e3433dabfb8d
children 44fc253d4876
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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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7207a407bcd8 shared copyright with osimis
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5 * Copyright (C) 2017 Osimis, 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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21
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22 #include "DicomStructureSetRendererFactory.h"
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24 #include "../Toolbox/MessagingToolbox.h"
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25
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2eca030792aa using the Orthanc Framework
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26 #include <Core/OrthancException.h>
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28 namespace OrthancStone
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29 {
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30 class DicomStructureSetRendererFactory::Renderer : public ILayerRenderer
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31 {
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32 private:
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33 DicomStructureSet& structureSet_;
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34 CoordinateSystem3D slice_;
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35 bool visible_;
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37 public:
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38 Renderer(DicomStructureSet& structureSet,
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39 const CoordinateSystem3D& slice) :
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40 structureSet_(structureSet),
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41 slice_(slice),
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42 visible_(true)
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43 {
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44 }
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45
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46 virtual bool RenderLayer(CairoContext& context,
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47 const ViewportGeometry& view)
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48 {
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49 if (visible_)
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50 {
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51 cairo_set_line_width(context.GetObject(), 3.0f / view.GetZoom());
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52 structureSet_.Render(context, slice_);
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53 }
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54
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55 return true;
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56 }
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57
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58 virtual const CoordinateSystem3D& GetLayerSlice()
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59 {
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60 return slice_;
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61 }
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62
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63 virtual void SetLayerStyle(const RenderStyle& style)
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64 {
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65 visible_ = style.visible_;
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66 }
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67
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68 virtual bool IsFullQuality()
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69 {
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70 return true;
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71 }
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72 };
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74
123
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75 class DicomStructureSetRendererFactory::Operation : public Orthanc::IDynamicObject
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76 {
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77 public:
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78 enum Type
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79 {
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80 Type_LoadStructureSet,
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81 Type_LookupSopInstanceUid,
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82 Type_LoadReferencedSlice
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83 };
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84
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85 private:
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86 Type type_;
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87 std::string value_;
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88
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89 public:
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90 Operation(Type type,
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91 const std::string& value) :
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92 type_(type),
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93 value_(value)
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94 {
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95 }
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96
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97 Type GetType() const
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98 {
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99 return type_;
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100 }
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101
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102 const std::string& GetIdentifier() const
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103 {
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104 return value_;
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105 }
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106 };
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107
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108
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109 void DicomStructureSetRendererFactory::NotifyError(const std::string& uri,
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110 Orthanc::IDynamicObject* payload)
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111 {
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112 // TODO
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113 }
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114
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115
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116 void DicomStructureSetRendererFactory::NotifySuccess(const std::string& uri,
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117 const void* answer,
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118 size_t answerSize,
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119 Orthanc::IDynamicObject* payload)
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120 {
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121 std::auto_ptr<Operation> op(dynamic_cast<Operation*>(payload));
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122
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123 switch (op->GetType())
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124 {
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125 case Operation::Type_LoadStructureSet:
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126 {
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127 OrthancPlugins::FullOrthancDataset dataset(answer, answerSize);
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128 structureSet_.reset(new DicomStructureSet(dataset));
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129
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130 std::set<std::string> instances;
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131 structureSet_->GetReferencedInstances(instances);
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132
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133 for (std::set<std::string>::const_iterator it = instances.begin();
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134 it != instances.end(); ++it)
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135 {
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136 orthanc_.SchedulePostRequest(*this, "/tools/lookup", *it,
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137 new Operation(Operation::Type_LookupSopInstanceUid, *it));
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138 }
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139
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140 break;
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141 }
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142
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143 case Operation::Type_LookupSopInstanceUid:
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144 {
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145 Json::Value lookup;
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146
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147 if (MessagingToolbox::ParseJson(lookup, answer, answerSize))
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148 {
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149 if (lookup.type() != Json::arrayValue ||
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150 lookup.size() != 1 ||
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151 !lookup[0].isMember("Type") ||
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152 !lookup[0].isMember("Path") ||
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153 lookup[0]["Type"].type() != Json::stringValue ||
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154 lookup[0]["ID"].type() != Json::stringValue ||
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155 lookup[0]["Type"].asString() != "Instance")
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156 {
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157 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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158 }
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159
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160 const std::string& instance = lookup[0]["ID"].asString();
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161 orthanc_.ScheduleGetRequest(*this, "/instances/" + instance + "/tags",
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162 new Operation(Operation::Type_LoadReferencedSlice, instance));
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163 }
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164 else
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165 {
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166 // TODO
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167 }
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168
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169 break;
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170 }
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171
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172 case Operation::Type_LoadReferencedSlice:
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173 {
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174 OrthancPlugins::FullOrthancDataset dataset(answer, answerSize);
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175
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176 Orthanc::DicomMap slice;
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177 MessagingToolbox::ConvertDataset(slice, dataset);
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178 structureSet_->AddReferencedSlice(slice);
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179
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180 LayerSourceBase::NotifyContentChange();
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181
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182 break;
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183 }
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184
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185 default:
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186 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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187 }
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188 }
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189
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190
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191 DicomStructureSetRendererFactory::DicomStructureSetRendererFactory(IWebService& orthanc,
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192 const std::string& instance) :
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193 orthanc_(orthanc)
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194 {
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195 const std::string uri = "/instances/" + instance + "/tags?ignore-length=3006-0050";
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196 orthanc_.ScheduleGetRequest(*this, uri, new Operation(Operation::Type_LoadStructureSet, instance));
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197 }
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198
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199
121
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200 void DicomStructureSetRendererFactory::ScheduleLayerCreation(const CoordinateSystem3D& viewportSlice)
0
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201 {
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202 bool isOpposite;
123
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203 if (structureSet_.get() != NULL &&
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204 GeometryToolbox::IsParallelOrOpposite(isOpposite,
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205 viewportSlice.GetNormal(),
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206 structureSet_->GetNormal()))
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207 {
123
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208 NotifyLayerReady(new Renderer(*structureSet_, viewportSlice), viewportSlice, false);
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209 }
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210 }
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211 }