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annotate OrthancCppClient/Instance.cpp @ 1331:77e129ba64e4

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Prevent freeze on C-FIND if no DICOM tag is to be returned
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 12 Mar 2015 10:47:32 +0100
parents 6e7e5ed91c2d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, 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 "../Core/PrecompiledHeaders.h"
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34 #include "Instance.h"
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35
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36 #include "OrthancConnection.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 OrthancClientException(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(std::string(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 OrthancClientException(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 void Instance::DownloadDicom()
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84 {
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85 if (dicom_.get() == NULL)
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86 {
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87 Orthanc::HttpClient client(connection_.GetHttpClient());
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88 client.SetUrl(std::string(connection_.GetOrthancUrl()) + "/instances/" + id_ + "/file");
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89
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90 dicom_.reset(new std::string);
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91
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92 if (!client.Apply(*dicom_))
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93 {
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94 throw OrthancClientException(Orthanc::ErrorCode_NetworkProtocol);
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95 }
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96 }
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97 }
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98
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99 Instance::Instance(const OrthancConnection& connection,
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100 const char* id) :
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101 connection_(connection),
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102 id_(id),
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103 mode_(Orthanc::ImageExtractionMode_Int16)
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104 {
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105 Orthanc::HttpClient client(connection_.GetHttpClient());
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106
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107 client.SetUrl(std::string(connection_.GetOrthancUrl()) + "/instances/" + id_ + "/simplified-tags");
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108 Json::Value v;
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109 if (!client.Apply(tags_))
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110 {
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111 throw OrthancClientException(Orthanc::ErrorCode_NetworkProtocol);
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112 }
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113 }
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114
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115 const char* Instance::GetTagAsString(const char* tag) const
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116 {
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117 if (tags_.isMember(tag))
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118 {
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119 return tags_[tag].asCString();
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120 }
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121 else
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122 {
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123 throw OrthancClientException(Orthanc::ErrorCode_InexistentItem);
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124 }
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125 }
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126
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127 float Instance::GetTagAsFloat(const char* tag) const
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128 {
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129 std::string value = GetTagAsString(tag);
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130
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131 try
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132 {
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133 return boost::lexical_cast<float>(value);
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134 }
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135 catch (boost::bad_lexical_cast)
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136 {
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137 throw OrthancClientException(Orthanc::ErrorCode_BadFileFormat);
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138 }
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139 }
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140
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141 int Instance::GetTagAsInt(const char* tag) const
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142 {
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143 std::string value = GetTagAsString(tag);
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144
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145 try
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146 {
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147 return boost::lexical_cast<int>(value);
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148 }
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149 catch (boost::bad_lexical_cast)
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150 {
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151 throw OrthancClientException(Orthanc::ErrorCode_BadFileFormat);
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152 }
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153 }
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154
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155 unsigned int Instance::GetWidth()
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156 {
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157 DownloadImage();
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158 return reader_->GetWidth();
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159 }
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160
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161 unsigned int Instance::GetHeight()
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162 {
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163 DownloadImage();
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164 return reader_->GetHeight();
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165 }
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166
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167 unsigned int Instance::GetPitch()
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168 {
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169 DownloadImage();
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170 return reader_->GetPitch();
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171 }
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172
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173 Orthanc::PixelFormat Instance::GetPixelFormat()
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174 {
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175 DownloadImage();
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176 return reader_->GetFormat();
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177 }
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178
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179 const void* Instance::GetBuffer()
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180 {
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181 DownloadImage();
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182 return reader_->GetConstBuffer();
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183 }
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184
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185 const void* Instance::GetBuffer(unsigned int y)
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186 {
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187 DownloadImage();
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188 return reader_->GetConstRow(y);
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189 }
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190
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191 void Instance::DiscardImage()
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192 {
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193 reader_.reset();
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194 }
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195
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196 void Instance::DiscardDicom()
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197 {
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198 dicom_.reset();
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199 }
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200
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201
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202 void Instance::SetImageExtractionMode(Orthanc::ImageExtractionMode mode)
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203 {
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204 if (mode_ == mode)
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205 {
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206 return;
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207 }
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208
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209 DiscardImage();
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210 mode_ = mode;
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211 }
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212
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213
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214 void Instance::SplitVectorOfFloats(std::vector<float>& target,
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215 const char* tag)
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216 {
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217 const std::string value = GetTagAsString(tag);
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218
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219 target.clear();
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220
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221 try
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222 {
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223 std::string tmp;
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224 for (size_t i = 0; i < value.size(); i++)
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225 {
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226 if (value[i] == '\\')
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227 {
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228 target.push_back(boost::lexical_cast<float>(tmp));
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229 tmp.clear();
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230 }
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231 else
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232 {
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233 tmp.push_back(value[i]);
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234 }
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235 }
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236
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237 target.push_back(boost::lexical_cast<float>(tmp));
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238 }
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239 catch (boost::bad_lexical_cast)
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240 {
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241 // Unable to parse the Image Orientation Patient.
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242 throw OrthancClientException(Orthanc::ErrorCode_BadFileFormat);
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243 }
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244 }
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245
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246
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247 const uint64_t Instance::GetDicomSize()
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248 {
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249 DownloadDicom();
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250 assert(dicom_.get() != NULL);
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251 return dicom_->size();
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252 }
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253
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254 const void* Instance::GetDicom()
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255 {
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256 DownloadDicom();
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257 assert(dicom_.get() != NULL);
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258
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259 if (dicom_->size() == 0)
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260 {
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261 return NULL;
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262 }
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263 else
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264 {
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265 return &((*dicom_) [0]);
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266 }
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267 }
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268
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269
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270 void Instance::LoadTagContent(const char* path)
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271 {
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272 Orthanc::HttpClient client(connection_.GetHttpClient());
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273 client.SetUrl(std::string(connection_.GetOrthancUrl()) + "/instances/" + id_ + "/content/" + path);
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274
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275 if (!client.Apply(content_))
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276 {
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277 throw OrthancClientException(Orthanc::ErrorCode_UnknownResource);
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278 }
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279 }
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280
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281
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282 const char* Instance::GetLoadedTagContent() const
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283 {
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284 return content_.c_str();
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285 }
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0cd977e94479 initial commit of the c++ client
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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