Mercurial > hg > orthanc
annotate OrthancServer/FromDcmtkBridge.cpp @ 1648:a0a4fa28624c
fix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 25 Sep 2015 11:33:55 +0200 |
parents | 96582230ddcb |
children | e40fd0d925c5 |
rev | line source |
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0 | 1 /** |
62 | 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 |
0 | 5 * |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
136 | 10 * |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
0 | 22 * |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
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32 |
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33 |
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34 #include "PrecompiledHeadersServer.h" |
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35 |
71 | 36 #ifndef NOMINMAX |
37 #define NOMINMAX | |
38 #endif | |
0 | 39 |
846 | 40 #include "Internals/DicomImageDecoder.h" |
41 | |
0 | 42 #include "FromDcmtkBridge.h" |
43 #include "ToDcmtkBridge.h" | |
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44 #include "OrthancInitialization.h" |
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45 #include "../Core/Logging.h" |
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46 #include "../Core/Toolbox.h" |
62 | 47 #include "../Core/OrthancException.h" |
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48 #include "../Core/Images/PngWriter.h" |
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49 #include "../Core/Uuid.h" |
0 | 50 #include "../Core/DicomFormat/DicomString.h" |
51 #include "../Core/DicomFormat/DicomNullValue.h" | |
79 | 52 #include "../Core/DicomFormat/DicomIntegerPixelAccessor.h" |
0 | 53 |
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54 #include <list> |
71 | 55 #include <limits> |
56 | |
0 | 57 #include <boost/lexical_cast.hpp> |
58 | |
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59 #include <dcmtk/dcmdata/dcchrstr.h> |
0 | 60 #include <dcmtk/dcmdata/dcdicent.h> |
61 #include <dcmtk/dcmdata/dcdict.h> | |
62 #include <dcmtk/dcmdata/dcfilefo.h> | |
63 #include <dcmtk/dcmdata/dcistrmb.h> | |
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64 #include <dcmtk/dcmdata/dcuid.h> |
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65 #include <dcmtk/dcmdata/dcmetinf.h> |
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66 #include <dcmtk/dcmdata/dcdeftag.h> |
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67 |
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68 #include <dcmtk/dcmdata/dcvrae.h> |
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69 #include <dcmtk/dcmdata/dcvras.h> |
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70 #include <dcmtk/dcmdata/dcvrcs.h> |
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71 #include <dcmtk/dcmdata/dcvrda.h> |
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72 #include <dcmtk/dcmdata/dcvrds.h> |
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73 #include <dcmtk/dcmdata/dcvrdt.h> |
0 | 74 #include <dcmtk/dcmdata/dcvrfd.h> |
75 #include <dcmtk/dcmdata/dcvrfl.h> | |
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76 #include <dcmtk/dcmdata/dcvris.h> |
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77 #include <dcmtk/dcmdata/dcvrlo.h> |
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78 #include <dcmtk/dcmdata/dcvrlt.h> |
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79 #include <dcmtk/dcmdata/dcvrpn.h> |
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80 #include <dcmtk/dcmdata/dcvrsh.h> |
0 | 81 #include <dcmtk/dcmdata/dcvrsl.h> |
82 #include <dcmtk/dcmdata/dcvrss.h> | |
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83 #include <dcmtk/dcmdata/dcvrst.h> |
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84 #include <dcmtk/dcmdata/dcvrtm.h> |
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85 #include <dcmtk/dcmdata/dcvrui.h> |
0 | 86 #include <dcmtk/dcmdata/dcvrul.h> |
87 #include <dcmtk/dcmdata/dcvrus.h> | |
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88 #include <dcmtk/dcmdata/dcvrut.h> |
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89 #include <dcmtk/dcmdata/dcpixel.h> |
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90 #include <dcmtk/dcmdata/dcpixseq.h> |
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91 #include <dcmtk/dcmdata/dcpxitem.h> |
1131 | 92 #include <dcmtk/dcmdata/dcvrat.h> |
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93 |
0 | 94 |
2 | 95 #include <boost/math/special_functions/round.hpp> |
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96 #include <dcmtk/dcmdata/dcostrmb.h> |
0 | 97 |
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98 |
62 | 99 namespace Orthanc |
0 | 100 { |
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101 static inline uint16_t GetCharValue(char c) |
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102 { |
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103 if (c >= '0' && c <= '9') |
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104 return c - '0'; |
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105 else if (c >= 'a' && c <= 'f') |
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106 return c - 'a' + 10; |
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107 else if (c >= 'A' && c <= 'F') |
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108 return c - 'A' + 10; |
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109 else |
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110 return 0; |
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111 } |
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112 |
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113 static inline uint16_t GetTagValue(const char* c) |
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114 { |
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115 return ((GetCharValue(c[0]) << 12) + |
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116 (GetCharValue(c[1]) << 8) + |
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117 (GetCharValue(c[2]) << 4) + |
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118 GetCharValue(c[3])); |
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119 } |
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120 |
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121 |
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122 Encoding FromDcmtkBridge::DetectEncoding(DcmDataset& dataset) |
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123 { |
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124 // By default, Latin1 encoding is assumed |
1557 | 125 std::string s = Configuration::GetGlobalStringParameter("DefaultEncoding", "Latin1"); |
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126 Encoding encoding = s.empty() ? Encoding_Latin1 : StringToEncoding(s.c_str()); |
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127 |
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128 OFString tmp; |
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129 if (dataset.findAndGetOFString(DCM_SpecificCharacterSet, tmp).good()) |
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130 { |
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131 std::string characterSet = Toolbox::StripSpaces(std::string(tmp.c_str())); |
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132 |
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133 if (characterSet.empty()) |
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134 { |
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135 // Empty specific character set tag: Use the default encoding |
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137 else if (GetDicomEncoding(encoding, characterSet.c_str())) |
1087 | 138 { |
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139 // The specific character set is supported by the Orthanc core |
1087 | 140 } |
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141 else |
1087 | 142 { |
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143 LOG(WARNING) << "Value of Specific Character Set (0008,0005) is not supported: " << characterSet |
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144 << ", fallback to ASCII (remove all special characters)"; |
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145 encoding = Encoding_Ascii; |
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146 } |
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147 } |
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148 else |
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149 { |
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150 // No specific character set tag: Use the default encoding |
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151 } |
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152 |
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153 return encoding; |
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154 } |
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155 |
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156 |
0 | 157 void FromDcmtkBridge::Convert(DicomMap& target, DcmDataset& dataset) |
158 { | |
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159 Encoding encoding = DetectEncoding(dataset); |
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160 |
0 | 161 target.Clear(); |
162 for (unsigned long i = 0; i < dataset.card(); i++) | |
163 { | |
164 DcmElement* element = dataset.getElement(i); | |
165 if (element && element->isLeaf()) | |
166 { | |
167 target.SetValue(element->getTag().getGTag(), | |
168 element->getTag().getETag(), | |
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169 ConvertLeafElement(*element, encoding)); |
0 | 170 } |
171 } | |
172 } | |
173 | |
174 | |
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175 DicomTag FromDcmtkBridge::Convert(const DcmTag& tag) |
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176 { |
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177 return DicomTag(tag.getGTag(), tag.getETag()); |
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178 } |
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179 |
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180 |
0 | 181 DicomTag FromDcmtkBridge::GetTag(const DcmElement& element) |
182 { | |
183 return DicomTag(element.getGTag(), element.getETag()); | |
184 } | |
185 | |
186 | |
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187 bool FromDcmtkBridge::IsPrivateTag(DcmTag& tag) |
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188 { |
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189 #if 1 |
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190 DcmTagKey tmp(tag.getGTag(), tag.getETag()); |
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191 return tmp.isPrivate(); |
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192 #else |
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193 // Implementation for Orthanc versions <= 0.8.5 |
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194 return (tag.getPrivateCreator() != NULL || |
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195 !strcmp("PrivateCreator", tag.getTagName())); // TODO - This may change with future versions of DCMTK |
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196 #endif |
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197 } |
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198 |
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199 |
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200 bool FromDcmtkBridge::IsPrivateTag(const DicomTag& tag) |
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201 { |
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202 #if 1 |
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203 DcmTagKey tmp(tag.GetGroup(), tag.GetElement()); |
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204 return tmp.isPrivate(); |
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205 #else |
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206 // Implementation for Orthanc versions <= 0.8.5 |
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207 DcmTag tmp(tag.GetGroup(), tag.GetElement()); |
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208 return IsPrivateTag(tmp); |
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209 #endif |
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210 } |
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211 |
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212 |
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213 DicomValue* FromDcmtkBridge::ConvertLeafElement(DcmElement& element, |
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214 Encoding encoding) |
0 | 215 { |
216 if (!element.isLeaf()) | |
217 { | |
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218 // This function is only applicable to leaf elements |
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219 throw OrthancException(ErrorCode_BadParameterType); |
0 | 220 } |
221 | |
222 if (element.isaString()) | |
223 { | |
224 char *c; | |
1429
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225 if (element.getString(c).good()) |
0 | 226 { |
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227 if (c == NULL) // This case corresponds to the empty string |
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228 { |
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229 return new DicomString(""); |
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230 } |
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231 else |
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232 { |
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233 std::string s(c); |
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234 std::string utf8 = Toolbox::ConvertToUtf8(s, encoding); |
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235 return new DicomString(utf8); |
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236 } |
0 | 237 } |
238 else | |
239 { | |
240 return new DicomNullValue; | |
241 } | |
242 } | |
243 | |
244 try | |
245 { | |
246 // http://support.dcmtk.org/docs/dcvr_8h-source.html | |
247 switch (element.getVR()) | |
248 { | |
249 | |
250 /** | |
251 * TODO. | |
252 **/ | |
306
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253 |
302
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254 case EVR_OB: // other byte |
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255 case EVR_OF: // other float |
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256 case EVR_OW: // other word |
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257 case EVR_UN: // unknown value representation |
1131 | 258 return new DicomNullValue; |
306
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259 |
302
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260 /** |
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261 * String types, should never happen at this point because of |
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262 * "element.isaString()". |
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263 **/ |
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264 |
306
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265 case EVR_DS: // decimal string |
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266 case EVR_IS: // integer string |
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267 case EVR_AS: // age string |
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268 case EVR_DA: // date string |
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269 case EVR_DT: // date time string |
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270 case EVR_TM: // time string |
302
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271 case EVR_AE: // application entity title |
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272 case EVR_CS: // code string |
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273 case EVR_SH: // short string |
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274 case EVR_LO: // long string |
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275 case EVR_ST: // short text |
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276 case EVR_LT: // long text |
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277 case EVR_UT: // unlimited text |
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278 case EVR_PN: // person name |
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279 case EVR_UI: // unique identifier |
1131 | 280 return new DicomNullValue; |
0 | 281 |
282 | |
302
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283 /** |
1131 | 284 * Numberic types |
302
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285 **/ |
0 | 286 |
302
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287 case EVR_SL: // signed long |
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288 { |
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289 Sint32 f; |
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290 if (dynamic_cast<DcmSignedLong&>(element).getSint32(f).good()) |
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291 return new DicomString(boost::lexical_cast<std::string>(f)); |
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292 else |
1131 | 293 return new DicomNullValue; |
302
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294 } |
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295 |
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296 case EVR_SS: // signed short |
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297 { |
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298 Sint16 f; |
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299 if (dynamic_cast<DcmSignedShort&>(element).getSint16(f).good()) |
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300 return new DicomString(boost::lexical_cast<std::string>(f)); |
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301 else |
1131 | 302 return new DicomNullValue; |
302
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303 } |
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304 |
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305 case EVR_UL: // unsigned long |
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306 { |
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307 Uint32 f; |
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308 if (dynamic_cast<DcmUnsignedLong&>(element).getUint32(f).good()) |
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309 return new DicomString(boost::lexical_cast<std::string>(f)); |
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310 else |
1131 | 311 return new DicomNullValue; |
302
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312 } |
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313 |
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314 case EVR_US: // unsigned short |
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315 { |
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316 Uint16 f; |
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317 if (dynamic_cast<DcmUnsignedShort&>(element).getUint16(f).good()) |
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318 return new DicomString(boost::lexical_cast<std::string>(f)); |
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319 else |
1131 | 320 return new DicomNullValue; |
302
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321 } |
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322 |
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323 case EVR_FL: // float single-precision |
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324 { |
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325 Float32 f; |
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326 if (dynamic_cast<DcmFloatingPointSingle&>(element).getFloat32(f).good()) |
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327 return new DicomString(boost::lexical_cast<std::string>(f)); |
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328 else |
1131 | 329 return new DicomNullValue; |
302
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330 } |
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331 |
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332 case EVR_FD: // float double-precision |
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333 { |
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334 Float64 f; |
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335 if (dynamic_cast<DcmFloatingPointDouble&>(element).getFloat64(f).good()) |
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336 return new DicomString(boost::lexical_cast<std::string>(f)); |
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337 else |
1131 | 338 return new DicomNullValue; |
339 } | |
340 | |
341 | |
342 /** | |
343 * Attribute tag. | |
344 **/ | |
345 | |
346 case EVR_AT: | |
347 { | |
1147 | 348 DcmTagKey tag; |
349 if (dynamic_cast<DcmAttributeTag&>(element).getTagVal(tag, 0).good()) | |
350 { | |
351 DicomTag t(tag.getGroup(), tag.getElement()); | |
352 return new DicomString(t.Format()); | |
353 } | |
1131 | 354 else |
1147 | 355 { |
1131 | 356 return new DicomNullValue; |
1147 | 357 } |
302
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358 } |
0 | 359 |
360 | |
361 /** | |
302
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362 * Sequence types, should never occur at this point because of |
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363 * "element.isLeaf()". |
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364 **/ |
0 | 365 |
302
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366 case EVR_SQ: // sequence of items |
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367 return new DicomNullValue; |
0 | 368 |
369 | |
302
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370 /** |
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371 * Internal to DCMTK. |
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372 **/ |
0 | 373 |
302
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374 case EVR_ox: // OB or OW depending on context |
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375 case EVR_xs: // SS or US depending on context |
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376 case EVR_lt: // US, SS or OW depending on context, used for LUT Data (thus the name) |
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377 case EVR_na: // na="not applicable", for data which has no VR |
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378 case EVR_up: // up="unsigned pointer", used internally for DICOMDIR suppor |
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379 case EVR_item: // used internally for items |
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380 case EVR_metainfo: // used internally for meta info datasets |
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381 case EVR_dataset: // used internally for datasets |
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382 case EVR_fileFormat: // used internally for DICOM files |
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383 case EVR_dicomDir: // used internally for DICOMDIR objects |
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384 case EVR_dirRecord: // used internally for DICOMDIR records |
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385 case EVR_pixelSQ: // used internally for pixel sequences in a compressed image |
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386 case EVR_pixelItem: // used internally for pixel items in a compressed image |
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387 case EVR_UNKNOWN: // used internally for elements with unknown VR (encoded with 4-byte length field in explicit VR) |
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388 case EVR_PixelData: // used internally for uncompressed pixeld data |
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389 case EVR_OverlayData: // used internally for overlay data |
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390 case EVR_UNKNOWN2B: // used internally for elements with unknown VR with 2-byte length field in explicit VR |
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391 return new DicomNullValue; |
0 | 392 |
393 | |
302
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394 /** |
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395 * Default case. |
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396 **/ |
0 | 397 |
302
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398 default: |
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399 return new DicomNullValue; |
0 | 400 } |
401 } | |
402 catch (boost::bad_lexical_cast) | |
403 { | |
404 return new DicomNullValue; | |
405 } | |
306
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406 catch (std::bad_cast) |
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407 { |
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408 return new DicomNullValue; |
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409 } |
0 | 410 } |
411 | |
412 | |
413 static void StoreElement(Json::Value& target, | |
414 DcmElement& element, | |
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415 unsigned int maxStringLength, |
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416 Encoding encoding); |
0 | 417 |
418 static void StoreItem(Json::Value& target, | |
419 DcmItem& item, | |
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420 unsigned int maxStringLength, |
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421 Encoding encoding) |
0 | 422 { |
423 target = Json::Value(Json::objectValue); | |
424 | |
425 for (unsigned long i = 0; i < item.card(); i++) | |
426 { | |
427 DcmElement* element = item.getElement(i); | |
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428 StoreElement(target, *element, maxStringLength, encoding); |
0 | 429 } |
430 } | |
431 | |
432 | |
433 static void StoreElement(Json::Value& target, | |
434 DcmElement& element, | |
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435 unsigned int maxStringLength, |
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436 Encoding encoding) |
0 | 437 { |
438 assert(target.type() == Json::objectValue); | |
439 | |
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440 DicomTag tag(FromDcmtkBridge::GetTag(element)); |
305
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441 const std::string formattedTag = tag.Format(); |
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442 |
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443 #if 0 |
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444 const std::string tagName = FromDcmtkBridge::GetName(tag); |
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445 #else |
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446 // This version of the code gives access to the name of the private tags |
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447 DcmTag tagbis(element.getTag()); |
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448 const std::string tagName(tagbis.getTagName()); |
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449 #endif |
0 | 450 |
451 if (element.isLeaf()) | |
452 { | |
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453 Json::Value value(Json::objectValue); |
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454 value["Name"] = tagName; |
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455 |
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456 if (tagbis.getPrivateCreator() != NULL) |
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457 { |
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458 value["PrivateCreator"] = tagbis.getPrivateCreator(); |
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459 } |
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460 |
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461 std::auto_ptr<DicomValue> v(FromDcmtkBridge::ConvertLeafElement(element, encoding)); |
0 | 462 if (v->IsNull()) |
463 { | |
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464 value["Type"] = "Null"; |
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465 value["Value"] = Json::nullValue; |
0 | 466 } |
467 else | |
468 { | |
469 std::string s = v->AsString(); | |
470 if (maxStringLength == 0 || | |
471 s.size() <= maxStringLength) | |
472 { | |
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473 value["Type"] = "String"; |
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474 value["Value"] = s; |
0 | 475 } |
476 else | |
477 { | |
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478 value["Type"] = "TooLong"; |
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479 value["Value"] = Json::nullValue; |
0 | 480 } |
481 } | |
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482 |
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483 target[formattedTag] = value; |
0 | 484 } |
485 else | |
486 { | |
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487 Json::Value children(Json::arrayValue); |
0 | 488 |
489 // "All subclasses of DcmElement except for DcmSequenceOfItems | |
490 // are leaf nodes, while DcmSequenceOfItems, DcmItem, DcmDataset | |
491 // etc. are not." The following cast is thus OK. | |
492 DcmSequenceOfItems& sequence = dynamic_cast<DcmSequenceOfItems&>(element); | |
493 | |
494 for (unsigned long i = 0; i < sequence.card(); i++) | |
495 { | |
496 DcmItem* child = sequence.getItem(i); | |
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497 Json::Value& v = children.append(Json::objectValue); |
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498 StoreItem(v, *child, maxStringLength, encoding); |
0 | 499 } |
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500 |
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501 target[formattedTag]["Name"] = tagName; |
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502 target[formattedTag]["Type"] = "Sequence"; |
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503 target[formattedTag]["Value"] = children; |
0 | 504 } |
505 } | |
506 | |
507 | |
508 void FromDcmtkBridge::ToJson(Json::Value& root, | |
509 DcmDataset& dataset, | |
510 unsigned int maxStringLength) | |
511 { | |
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512 StoreItem(root, dataset, maxStringLength, DetectEncoding(dataset)); |
0 | 513 } |
514 | |
515 | |
516 | |
517 void FromDcmtkBridge::ToJson(Json::Value& target, | |
518 const std::string& path, | |
519 unsigned int maxStringLength) | |
520 { | |
521 DcmFileFormat dicom; | |
522 if (!dicom.loadFile(path.c_str()).good()) | |
523 { | |
62 | 524 throw OrthancException(ErrorCode_BadFileFormat); |
0 | 525 } |
526 else | |
527 { | |
528 FromDcmtkBridge::ToJson(target, *dicom.getDataset(), maxStringLength); | |
529 } | |
530 } | |
531 | |
532 | |
533 | |
534 std::string FromDcmtkBridge::GetName(const DicomTag& t) | |
535 { | |
106 | 536 // Some patches for important tags because of different DICOM |
537 // dictionaries between DCMTK versions | |
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538 std::string n = t.GetMainTagsName(); |
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539 if (n.size() != 0) |
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540 { |
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541 return n; |
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542 } |
106 | 543 // End of patches |
544 | |
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545 #if 0 |
0 | 546 DcmTagKey tag(t.GetGroup(), t.GetElement()); |
547 const DcmDataDictionary& dict = dcmDataDict.rdlock(); | |
548 const DcmDictEntry* entry = dict.findEntry(tag, NULL); | |
549 | |
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550 std::string s(DcmTag_ERROR_TagName); |
0 | 551 if (entry != NULL) |
552 { | |
553 s = std::string(entry->getTagName()); | |
554 } | |
555 | |
556 dcmDataDict.unlock(); | |
557 return s; | |
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558 #else |
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559 DcmTag tag(t.GetGroup(), t.GetElement()); |
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560 const char* name = tag.getTagName(); |
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561 if (name == NULL) |
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562 { |
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563 return DcmTag_ERROR_TagName; |
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564 } |
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565 else |
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566 { |
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567 return std::string(name); |
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568 } |
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569 #endif |
0 | 570 } |
571 | |
572 | |
304 | 573 DicomTag FromDcmtkBridge::ParseTag(const char* name) |
0 | 574 { |
304 | 575 if (strlen(name) == 9 && |
576 isxdigit(name[0]) && | |
577 isxdigit(name[1]) && | |
578 isxdigit(name[2]) && | |
579 isxdigit(name[3]) && | |
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580 (name[4] == '-' || name[4] == ',') && |
304 | 581 isxdigit(name[5]) && |
582 isxdigit(name[6]) && | |
583 isxdigit(name[7]) && | |
584 isxdigit(name[8])) | |
585 { | |
586 uint16_t group = GetTagValue(name); | |
587 uint16_t element = GetTagValue(name + 5); | |
588 return DicomTag(group, element); | |
589 } | |
590 | |
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591 #if 0 |
0 | 592 const DcmDataDictionary& dict = dcmDataDict.rdlock(); |
593 const DcmDictEntry* entry = dict.findEntry(name); | |
594 | |
595 if (entry == NULL) | |
596 { | |
597 dcmDataDict.unlock(); | |
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598 throw OrthancException(ErrorCode_UnknownDicomTag); |
0 | 599 } |
600 else | |
601 { | |
602 DcmTagKey key = entry->getKey(); | |
603 DicomTag tag(key.getGroup(), key.getElement()); | |
604 dcmDataDict.unlock(); | |
605 return tag; | |
606 } | |
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607 #else |
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608 DcmTag tag; |
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609 if (DcmTag::findTagFromName(name, tag).good()) |
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610 { |
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611 return DicomTag(tag.getGTag(), tag.getETag()); |
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612 } |
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613 else |
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614 { |
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615 throw OrthancException(ErrorCode_UnknownDicomTag); |
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616 } |
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617 #endif |
0 | 618 } |
619 | |
620 | |
621 void FromDcmtkBridge::Print(FILE* fp, const DicomMap& m) | |
622 { | |
623 for (DicomMap::Map::const_iterator | |
656 | 624 it = m.map_.begin(); it != m.map_.end(); ++it) |
0 | 625 { |
626 DicomTag t = it->first; | |
627 std::string s = it->second->AsString(); | |
319 | 628 fprintf(fp, "0x%04x 0x%04x (%s) [%s]\n", t.GetGroup(), t.GetElement(), GetName(t).c_str(), s.c_str()); |
0 | 629 } |
630 } | |
631 | |
632 | |
633 void FromDcmtkBridge::ToJson(Json::Value& result, | |
1368 | 634 const DicomMap& values, |
635 bool simplify) | |
0 | 636 { |
637 if (result.type() != Json::objectValue) | |
638 { | |
62 | 639 throw OrthancException(ErrorCode_BadParameterType); |
0 | 640 } |
641 | |
642 result.clear(); | |
643 | |
644 for (DicomMap::Map::const_iterator | |
656 | 645 it = values.map_.begin(); it != values.map_.end(); ++it) |
0 | 646 { |
1368 | 647 if (simplify) |
648 { | |
649 result[GetName(it->first)] = it->second->AsString(); | |
650 } | |
651 else | |
652 { | |
653 Json::Value value = Json::objectValue; | |
654 | |
655 value["Name"] = GetName(it->first); | |
656 | |
657 if (it->second->IsNull()) | |
658 { | |
659 value["Type"] = "Null"; | |
660 value["Value"] = Json::nullValue; | |
661 } | |
662 else | |
663 { | |
664 value["Type"] = "String"; | |
665 value["Value"] = it->second->AsString(); | |
666 } | |
667 | |
668 result[it->first.Format()] = value; | |
669 } | |
0 | 670 } |
671 } | |
176 | 672 |
673 | |
788 | 674 std::string FromDcmtkBridge::GenerateUniqueIdentifier(ResourceType level) |
176 | 675 { |
676 char uid[100]; | |
677 | |
678 switch (level) | |
679 { | |
788 | 680 case ResourceType_Patient: |
311 | 681 // The "PatientID" field is of type LO (Long String), 64 |
682 // Bytes Maximum. An UUID is of length 36, thus it can be used | |
683 // as a random PatientID. | |
684 return Toolbox::GenerateUuid(); | |
306
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685 |
788 | 686 case ResourceType_Instance: |
302
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687 return dcmGenerateUniqueIdentifier(uid, SITE_INSTANCE_UID_ROOT); |
176 | 688 |
788 | 689 case ResourceType_Series: |
302
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690 return dcmGenerateUniqueIdentifier(uid, SITE_SERIES_UID_ROOT); |
176 | 691 |
788 | 692 case ResourceType_Study: |
302
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693 return dcmGenerateUniqueIdentifier(uid, SITE_STUDY_UID_ROOT); |
176 | 694 |
302
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695 default: |
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696 throw OrthancException(ErrorCode_ParameterOutOfRange); |
176 | 697 } |
698 } | |
699 | |
291
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700 bool FromDcmtkBridge::SaveToMemoryBuffer(std::string& buffer, |
1004
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701 DcmDataset& dataSet) |
291
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702 { |
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703 // Determine the transfer syntax which shall be used to write the |
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704 // information to the file. We always switch to the Little Endian |
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705 // syntax, with explicit length. |
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706 |
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707 // http://support.dcmtk.org/docs/dcxfer_8h-source.html |
661
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708 |
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709 |
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710 /** |
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711 * Note that up to Orthanc 0.7.1 (inclusive), the |
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712 * "EXS_LittleEndianExplicit" was always used to save the DICOM |
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713 * dataset into memory. We now keep the original transfer syntax |
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714 * (if available). |
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715 **/ |
1004
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716 E_TransferSyntax xfer = dataSet.getOriginalXfer(); |
661
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717 if (xfer == EXS_Unknown) |
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718 { |
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719 // No information about the original transfer syntax: This is |
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720 // most probably a DICOM dataset that was read from memory. |
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721 xfer = EXS_LittleEndianExplicit; |
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722 } |
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723 |
291
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724 E_EncodingType encodingType = /*opt_sequenceType*/ EET_ExplicitLength; |
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725 |
661
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726 // Create the meta-header information |
1004
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727 DcmFileFormat ff(&dataSet); |
661
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728 ff.validateMetaInfo(xfer); |
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729 ff.removeInvalidGroups(); |
291
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730 |
661
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731 // Create a memory buffer with the proper size |
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732 uint32_t s = ff.calcElementLength(xfer, encodingType); |
291
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733 buffer.resize(s); |
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734 DcmOutputBufferStream ob(&buffer[0], s); |
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735 |
661
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736 // Fill the memory buffer with the meta-header and the dataset |
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737 ff.transferInit(); |
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738 OFCondition c = ff.write(ob, xfer, encodingType, NULL, |
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739 /*opt_groupLength*/ EGL_recalcGL, |
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740 /*opt_paddingType*/ EPD_withoutPadding); |
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741 ff.transferEnd(); |
291
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742 |
661
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743 // Handle errors |
291
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744 if (c.good()) |
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745 { |
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746 return true; |
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747 } |
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748 else |
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749 { |
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750 buffer.clear(); |
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751 return false; |
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752 } |
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753 } |
1360 | 754 |
755 | |
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756 ValueRepresentation FromDcmtkBridge::GetValueRepresentation(const DicomTag& tag) |
1360 | 757 { |
758 DcmTag t(tag.GetGroup(), tag.GetElement()); | |
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759 switch (t.getEVR()) |
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760 { |
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761 case EVR_PN: |
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762 return ValueRepresentation_PatientName; |
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763 |
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764 case EVR_DA: |
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765 return ValueRepresentation_Date; |
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766 |
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767 case EVR_DT: |
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768 return ValueRepresentation_DateTime; |
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769 |
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770 case EVR_TM: |
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771 return ValueRepresentation_Time; |
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772 |
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773 default: |
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774 return ValueRepresentation_Other; |
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775 } |
1360 | 776 } |
777 | |
0 | 778 } |