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annotate OrthancCppClient/Instance.cpp @ 479:0cd977e94479

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initial commit of the c++ client
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 16 Jul 2013 09:08:09 +0200
parents
children 7f7a2d174acb
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479
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "Instance.h"
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34
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35 #include "OrthancConnection.h"
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36 #include "../Core/OrthancException.h"
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37
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38 #include <boost/lexical_cast.hpp>
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39
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40 namespace OrthancClient
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41 {
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42 void Instance::DownloadImage()
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43 {
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44 if (reader_.get() == NULL)
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45 {
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46 const char* suffix;
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47 switch (mode_)
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48 {
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49 case Orthanc::ImageExtractionMode_Preview:
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50 suffix = "preview";
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51 break;
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52
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53 case Orthanc::ImageExtractionMode_UInt8:
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54 suffix = "image-uint8";
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55 break;
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56
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57 case Orthanc::ImageExtractionMode_UInt16:
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58 suffix = "image-uint16";
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59 break;
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60
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61 case Orthanc::ImageExtractionMode_Int16:
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62 suffix = "image-int16";
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63 break;
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64
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65 default:
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66 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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67 }
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68
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69 Orthanc::HttpClient client(connection_.GetHttpClient());
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70 client.SetUrl(connection_.GetOrthancUrl() + "/instances/" + id_ + "/" + suffix);
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71 std::string png;
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72
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73 if (!client.Apply(png))
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74 {
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75 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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76 }
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77
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78 reader_.reset(new Orthanc::PngReader);
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79 reader_->ReadFromMemory(png);
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80 }
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81 }
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82
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83 Instance::Instance(const OrthancConnection& connection,
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84 const std::string& id) :
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85 connection_(connection),
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86 id_(id),
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87 mode_(Orthanc::ImageExtractionMode_Int16)
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88 {
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89 Orthanc::HttpClient client(connection_.GetHttpClient());
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90
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91 client.SetUrl(connection_.GetOrthancUrl() + "/instances/" + id_ + "/simplified-tags");
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92 Json::Value v;
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93 if (!client.Apply(tags_))
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94 {
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95 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol);
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96 }
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97 }
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98
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99 std::string Instance::GetTagAsString(const char* tag)
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100 {
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101 if (tags_.isMember(tag))
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102 {
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103 return tags_[tag].asString();
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104 }
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105 else
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106 {
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107 throw Orthanc::OrthancException(Orthanc::ErrorCode_InexistentItem);
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108 }
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109 }
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110
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111 float Instance::GetTagAsFloat(const char* tag)
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112 {
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113 std::string value = GetTagAsString(tag);
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114
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115 try
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116 {
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117 return boost::lexical_cast<float>(value);
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118 }
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119 catch (boost::bad_lexical_cast)
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120 {
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121 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
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122 }
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123 }
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124
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125 int Instance::GetTagAsInt(const char* tag)
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126 {
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127 std::string value = GetTagAsString(tag);
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128
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129 try
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130 {
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131 return boost::lexical_cast<int>(value);
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132 }
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133 catch (boost::bad_lexical_cast)
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134 {
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135 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
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136 }
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137 }
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138
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139 unsigned int Instance::GetWidth()
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140 {
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141 DownloadImage();
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142 return reader_->GetWidth();
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143 }
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144
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145 unsigned int Instance::GetHeight()
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146 {
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147 DownloadImage();
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148 return reader_->GetHeight();
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149 }
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150
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151 unsigned int Instance::GetPitch()
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152 {
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153 DownloadImage();
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154 return reader_->GetPitch();
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155 }
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156
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157 Orthanc::PixelFormat Instance::GetPixelFormat()
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158 {
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159 DownloadImage();
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160 return reader_->GetFormat();
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161 }
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162
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163 const void* Instance::GetBuffer()
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164 {
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165 DownloadImage();
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166 return reader_->GetBuffer();
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167 }
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168
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169 const void* Instance::GetBuffer(unsigned int y)
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170 {
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171 DownloadImage();
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172 return reader_->GetBuffer(y);
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173 }
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174
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175 void Instance::DiscardImage()
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176 {
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177 reader_.reset();
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178 }
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179
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180
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181 void Instance::SetImageExtractionMode(Orthanc::ImageExtractionMode mode)
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182 {
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183 if (mode_ == mode)
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184 {
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185 return;
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186 }
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187
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188 DiscardImage();
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189 mode_ = mode;
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190 }
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191
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192
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193 void Instance::SplitVectorOfFloats(std::vector<float>& target,
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194 const char* tag)
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195 {
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196 const std::string value = GetTagAsString(tag);
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197
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198 target.clear();
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199
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200 try
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201 {
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202 std::string tmp;
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203 for (size_t i = 0; i < value.size(); i++)
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204 {
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205 if (value[i] == '\\')
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206 {
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207 target.push_back(boost::lexical_cast<float>(tmp));
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208 tmp.clear();
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209 }
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210 else
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211 {
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212 tmp.push_back(value[i]);
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213 }
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214 }
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215
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216 target.push_back(boost::lexical_cast<float>(tmp));
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217 }
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218 catch (boost::bad_lexical_cast)
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219 {
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220 // Unable to parse the Image Orientation Patient.
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221 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
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222 }
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223 }
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224 }