Mercurial > hg > orthanc
annotate OrthancServer/FromDcmtkBridge.cpp @ 1131:ac6bd50a8c83
fix issue #16
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 08 Sep 2014 17:34:33 +0200 |
parents | 552a038f7c96 |
children | ae9a83a6fa47 |
rev | line source |
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0 | 1 /** |
62 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
0 | 4 * Belgium |
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/Toolbox.h" |
62 | 46 #include "../Core/OrthancException.h" |
799 | 47 #include "../Core/ImageFormats/PngWriter.h" |
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48 #include "../Core/Uuid.h" |
0 | 49 #include "../Core/DicomFormat/DicomString.h" |
50 #include "../Core/DicomFormat/DicomNullValue.h" | |
79 | 51 #include "../Core/DicomFormat/DicomIntegerPixelAccessor.h" |
0 | 52 |
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53 #include <list> |
71 | 54 #include <limits> |
55 | |
0 | 56 #include <boost/lexical_cast.hpp> |
57 | |
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58 #include <dcmtk/dcmdata/dcchrstr.h> |
0 | 59 #include <dcmtk/dcmdata/dcdicent.h> |
60 #include <dcmtk/dcmdata/dcdict.h> | |
61 #include <dcmtk/dcmdata/dcfilefo.h> | |
62 #include <dcmtk/dcmdata/dcistrmb.h> | |
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63 #include <dcmtk/dcmdata/dcuid.h> |
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64 #include <dcmtk/dcmdata/dcmetinf.h> |
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65 #include <dcmtk/dcmdata/dcdeftag.h> |
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66 |
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67 #include <dcmtk/dcmdata/dcvrae.h> |
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68 #include <dcmtk/dcmdata/dcvras.h> |
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69 #include <dcmtk/dcmdata/dcvrcs.h> |
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70 #include <dcmtk/dcmdata/dcvrda.h> |
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71 #include <dcmtk/dcmdata/dcvrds.h> |
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72 #include <dcmtk/dcmdata/dcvrdt.h> |
0 | 73 #include <dcmtk/dcmdata/dcvrfd.h> |
74 #include <dcmtk/dcmdata/dcvrfl.h> | |
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75 #include <dcmtk/dcmdata/dcvris.h> |
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76 #include <dcmtk/dcmdata/dcvrlo.h> |
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77 #include <dcmtk/dcmdata/dcvrlt.h> |
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78 #include <dcmtk/dcmdata/dcvrpn.h> |
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79 #include <dcmtk/dcmdata/dcvrsh.h> |
0 | 80 #include <dcmtk/dcmdata/dcvrsl.h> |
81 #include <dcmtk/dcmdata/dcvrss.h> | |
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82 #include <dcmtk/dcmdata/dcvrst.h> |
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83 #include <dcmtk/dcmdata/dcvrtm.h> |
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84 #include <dcmtk/dcmdata/dcvrui.h> |
0 | 85 #include <dcmtk/dcmdata/dcvrul.h> |
86 #include <dcmtk/dcmdata/dcvrus.h> | |
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87 #include <dcmtk/dcmdata/dcvrut.h> |
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88 #include <dcmtk/dcmdata/dcpixel.h> |
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89 #include <dcmtk/dcmdata/dcpixseq.h> |
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90 #include <dcmtk/dcmdata/dcpxitem.h> |
1131 | 91 #include <dcmtk/dcmdata/dcvrat.h> |
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92 |
0 | 93 |
2 | 94 #include <boost/math/special_functions/round.hpp> |
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95 #include <glog/logging.h> |
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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 |
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125 std::string s = Configuration::GetGlobalStringParameter("DefaultEncoding", ""); |
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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 |
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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 return (tag.getPrivateCreator() != NULL || |
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190 !strcmp("PrivateCreator", tag.getTagName())); // TODO - This may change with future versions of DCMTK |
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191 } |
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192 |
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193 |
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194 bool FromDcmtkBridge::IsPrivateTag(const DicomTag& tag) |
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195 { |
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196 DcmTag tmp(tag.GetGroup(), tag.GetElement()); |
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197 return IsPrivateTag(tmp); |
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198 } |
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199 |
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200 |
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201 DicomValue* FromDcmtkBridge::ConvertLeafElement(DcmElement& element, |
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202 Encoding encoding) |
0 | 203 { |
204 if (!element.isLeaf()) | |
205 { | |
62 | 206 throw OrthancException("Only applicable to leaf elements"); |
0 | 207 } |
208 | |
209 if (element.isaString()) | |
210 { | |
211 char *c; | |
212 if (element.getString(c).good() && | |
213 c != NULL) | |
214 { | |
215 std::string s(c); | |
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216 std::string utf8 = Toolbox::ConvertToUtf8(s, encoding); |
0 | 217 return new DicomString(utf8); |
218 } | |
219 else | |
220 { | |
221 return new DicomNullValue; | |
222 } | |
223 } | |
224 | |
225 try | |
226 { | |
227 // http://support.dcmtk.org/docs/dcvr_8h-source.html | |
228 switch (element.getVR()) | |
229 { | |
230 | |
231 /** | |
232 * TODO. | |
233 **/ | |
306
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234 |
302
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235 case EVR_OB: // other byte |
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236 case EVR_OF: // other float |
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237 case EVR_OW: // other word |
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238 case EVR_UN: // unknown value representation |
1131 | 239 return new DicomNullValue; |
306
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240 |
302
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241 /** |
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242 * String types, should never happen at this point because of |
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243 * "element.isaString()". |
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244 **/ |
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245 |
306
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246 case EVR_DS: // decimal string |
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247 case EVR_IS: // integer string |
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248 case EVR_AS: // age string |
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249 case EVR_DA: // date string |
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250 case EVR_DT: // date time string |
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251 case EVR_TM: // time string |
302
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252 case EVR_AE: // application entity title |
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253 case EVR_CS: // code string |
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254 case EVR_SH: // short string |
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255 case EVR_LO: // long string |
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256 case EVR_ST: // short text |
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257 case EVR_LT: // long text |
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258 case EVR_UT: // unlimited text |
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259 case EVR_PN: // person name |
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260 case EVR_UI: // unique identifier |
1131 | 261 return new DicomNullValue; |
0 | 262 |
263 | |
302
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264 /** |
1131 | 265 * Numberic types |
302
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266 **/ |
0 | 267 |
302
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268 case EVR_SL: // signed long |
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269 { |
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270 Sint32 f; |
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271 if (dynamic_cast<DcmSignedLong&>(element).getSint32(f).good()) |
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272 return new DicomString(boost::lexical_cast<std::string>(f)); |
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273 else |
1131 | 274 return new DicomNullValue; |
302
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275 } |
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276 |
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277 case EVR_SS: // signed short |
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278 { |
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279 Sint16 f; |
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280 if (dynamic_cast<DcmSignedShort&>(element).getSint16(f).good()) |
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281 return new DicomString(boost::lexical_cast<std::string>(f)); |
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282 else |
1131 | 283 return new DicomNullValue; |
302
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284 } |
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285 |
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286 case EVR_UL: // unsigned long |
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287 { |
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288 Uint32 f; |
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289 if (dynamic_cast<DcmUnsignedLong&>(element).getUint32(f).good()) |
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290 return new DicomString(boost::lexical_cast<std::string>(f)); |
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291 else |
1131 | 292 return new DicomNullValue; |
302
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293 } |
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294 |
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295 case EVR_US: // unsigned short |
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296 { |
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297 Uint16 f; |
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298 if (dynamic_cast<DcmUnsignedShort&>(element).getUint16(f).good()) |
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299 return new DicomString(boost::lexical_cast<std::string>(f)); |
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300 else |
1131 | 301 return new DicomNullValue; |
302
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302 } |
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303 |
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304 case EVR_FL: // float single-precision |
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305 { |
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306 Float32 f; |
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307 if (dynamic_cast<DcmFloatingPointSingle&>(element).getFloat32(f).good()) |
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308 return new DicomString(boost::lexical_cast<std::string>(f)); |
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309 else |
1131 | 310 return new DicomNullValue; |
302
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311 } |
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312 |
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313 case EVR_FD: // float double-precision |
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314 { |
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315 Float64 f; |
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316 if (dynamic_cast<DcmFloatingPointDouble&>(element).getFloat64(f).good()) |
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317 return new DicomString(boost::lexical_cast<std::string>(f)); |
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318 else |
1131 | 319 return new DicomNullValue; |
320 } | |
321 | |
322 | |
323 /** | |
324 * Attribute tag. | |
325 **/ | |
326 | |
327 case EVR_AT: | |
328 { | |
329 OFString s; | |
330 if (dynamic_cast<DcmAttributeTag&>(element).getOFString(s, 0).good()) | |
331 return new DicomString(s.c_str()); | |
332 else | |
333 return new DicomNullValue; | |
302
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334 } |
0 | 335 |
336 | |
337 /** | |
302
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338 * Sequence types, should never occur at this point because of |
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339 * "element.isLeaf()". |
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340 **/ |
0 | 341 |
302
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342 case EVR_SQ: // sequence of items |
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343 return new DicomNullValue; |
0 | 344 |
345 | |
302
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346 /** |
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347 * Internal to DCMTK. |
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348 **/ |
0 | 349 |
302
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350 case EVR_ox: // OB or OW depending on context |
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351 case EVR_xs: // SS or US depending on context |
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352 case EVR_lt: // US, SS or OW depending on context, used for LUT Data (thus the name) |
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353 case EVR_na: // na="not applicable", for data which has no VR |
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354 case EVR_up: // up="unsigned pointer", used internally for DICOMDIR suppor |
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355 case EVR_item: // used internally for items |
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356 case EVR_metainfo: // used internally for meta info datasets |
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357 case EVR_dataset: // used internally for datasets |
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358 case EVR_fileFormat: // used internally for DICOM files |
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359 case EVR_dicomDir: // used internally for DICOMDIR objects |
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360 case EVR_dirRecord: // used internally for DICOMDIR records |
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361 case EVR_pixelSQ: // used internally for pixel sequences in a compressed image |
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362 case EVR_pixelItem: // used internally for pixel items in a compressed image |
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363 case EVR_UNKNOWN: // used internally for elements with unknown VR (encoded with 4-byte length field in explicit VR) |
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364 case EVR_PixelData: // used internally for uncompressed pixeld data |
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365 case EVR_OverlayData: // used internally for overlay data |
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366 case EVR_UNKNOWN2B: // used internally for elements with unknown VR with 2-byte length field in explicit VR |
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367 return new DicomNullValue; |
0 | 368 |
369 | |
302
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370 /** |
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371 * Default case. |
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372 **/ |
0 | 373 |
302
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374 default: |
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375 return new DicomNullValue; |
0 | 376 } |
377 } | |
378 catch (boost::bad_lexical_cast) | |
379 { | |
380 return new DicomNullValue; | |
381 } | |
306
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382 catch (std::bad_cast) |
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383 { |
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384 return new DicomNullValue; |
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385 } |
0 | 386 } |
387 | |
388 | |
389 static void StoreElement(Json::Value& target, | |
390 DcmElement& element, | |
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391 unsigned int maxStringLength, |
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392 Encoding encoding); |
0 | 393 |
394 static void StoreItem(Json::Value& target, | |
395 DcmItem& item, | |
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396 unsigned int maxStringLength, |
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397 Encoding encoding) |
0 | 398 { |
399 target = Json::Value(Json::objectValue); | |
400 | |
401 for (unsigned long i = 0; i < item.card(); i++) | |
402 { | |
403 DcmElement* element = item.getElement(i); | |
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404 StoreElement(target, *element, maxStringLength, encoding); |
0 | 405 } |
406 } | |
407 | |
408 | |
409 static void StoreElement(Json::Value& target, | |
410 DcmElement& element, | |
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411 unsigned int maxStringLength, |
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412 Encoding encoding) |
0 | 413 { |
414 assert(target.type() == Json::objectValue); | |
415 | |
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416 DicomTag tag(FromDcmtkBridge::GetTag(element)); |
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417 const std::string formattedTag = tag.Format(); |
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418 |
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419 #if 0 |
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420 const std::string tagName = FromDcmtkBridge::GetName(tag); |
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421 #else |
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422 // This version of the code gives access to the name of the private tags |
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423 DcmTag tagbis(element.getTag()); |
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424 const std::string tagName(tagbis.getTagName()); |
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425 #endif |
0 | 426 |
427 if (element.isLeaf()) | |
428 { | |
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429 Json::Value value(Json::objectValue); |
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430 value["Name"] = tagName; |
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431 |
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432 if (tagbis.getPrivateCreator() != NULL) |
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433 { |
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434 value["PrivateCreator"] = tagbis.getPrivateCreator(); |
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435 } |
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436 |
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437 std::auto_ptr<DicomValue> v(FromDcmtkBridge::ConvertLeafElement(element, encoding)); |
0 | 438 if (v->IsNull()) |
439 { | |
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440 value["Type"] = "Null"; |
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441 value["Value"] = Json::nullValue; |
0 | 442 } |
443 else | |
444 { | |
445 std::string s = v->AsString(); | |
446 if (maxStringLength == 0 || | |
447 s.size() <= maxStringLength) | |
448 { | |
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449 value["Type"] = "String"; |
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450 value["Value"] = s; |
0 | 451 } |
452 else | |
453 { | |
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454 value["Type"] = "TooLong"; |
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455 value["Value"] = Json::nullValue; |
0 | 456 } |
457 } | |
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458 |
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459 target[formattedTag] = value; |
0 | 460 } |
461 else | |
462 { | |
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463 Json::Value children(Json::arrayValue); |
0 | 464 |
465 // "All subclasses of DcmElement except for DcmSequenceOfItems | |
466 // are leaf nodes, while DcmSequenceOfItems, DcmItem, DcmDataset | |
467 // etc. are not." The following cast is thus OK. | |
468 DcmSequenceOfItems& sequence = dynamic_cast<DcmSequenceOfItems&>(element); | |
469 | |
470 for (unsigned long i = 0; i < sequence.card(); i++) | |
471 { | |
472 DcmItem* child = sequence.getItem(i); | |
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473 Json::Value& v = children.append(Json::objectValue); |
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474 StoreItem(v, *child, maxStringLength, encoding); |
0 | 475 } |
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476 |
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477 target[formattedTag]["Name"] = tagName; |
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478 target[formattedTag]["Type"] = "Sequence"; |
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479 target[formattedTag]["Value"] = children; |
0 | 480 } |
481 } | |
482 | |
483 | |
484 void FromDcmtkBridge::ToJson(Json::Value& root, | |
485 DcmDataset& dataset, | |
486 unsigned int maxStringLength) | |
487 { | |
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488 StoreItem(root, dataset, maxStringLength, DetectEncoding(dataset)); |
0 | 489 } |
490 | |
491 | |
492 | |
493 void FromDcmtkBridge::ToJson(Json::Value& target, | |
494 const std::string& path, | |
495 unsigned int maxStringLength) | |
496 { | |
497 DcmFileFormat dicom; | |
498 if (!dicom.loadFile(path.c_str()).good()) | |
499 { | |
62 | 500 throw OrthancException(ErrorCode_BadFileFormat); |
0 | 501 } |
502 else | |
503 { | |
504 FromDcmtkBridge::ToJson(target, *dicom.getDataset(), maxStringLength); | |
505 } | |
506 } | |
507 | |
508 | |
509 | |
510 std::string FromDcmtkBridge::GetName(const DicomTag& t) | |
511 { | |
106 | 512 // Some patches for important tags because of different DICOM |
513 // dictionaries between DCMTK versions | |
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514 std::string n = t.GetMainTagsName(); |
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515 if (n.size() != 0) |
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516 { |
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517 return n; |
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518 } |
106 | 519 // End of patches |
520 | |
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521 #if 0 |
0 | 522 DcmTagKey tag(t.GetGroup(), t.GetElement()); |
523 const DcmDataDictionary& dict = dcmDataDict.rdlock(); | |
524 const DcmDictEntry* entry = dict.findEntry(tag, NULL); | |
525 | |
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526 std::string s(DcmTag_ERROR_TagName); |
0 | 527 if (entry != NULL) |
528 { | |
529 s = std::string(entry->getTagName()); | |
530 } | |
531 | |
532 dcmDataDict.unlock(); | |
533 return s; | |
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534 #else |
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535 DcmTag tag(t.GetGroup(), t.GetElement()); |
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536 const char* name = tag.getTagName(); |
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537 if (name == NULL) |
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538 { |
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539 return DcmTag_ERROR_TagName; |
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540 } |
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541 else |
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542 { |
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543 return std::string(name); |
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544 } |
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545 #endif |
0 | 546 } |
547 | |
548 | |
304 | 549 DicomTag FromDcmtkBridge::ParseTag(const char* name) |
0 | 550 { |
304 | 551 if (strlen(name) == 9 && |
552 isxdigit(name[0]) && | |
553 isxdigit(name[1]) && | |
554 isxdigit(name[2]) && | |
555 isxdigit(name[3]) && | |
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556 (name[4] == '-' || name[4] == ',') && |
304 | 557 isxdigit(name[5]) && |
558 isxdigit(name[6]) && | |
559 isxdigit(name[7]) && | |
560 isxdigit(name[8])) | |
561 { | |
562 uint16_t group = GetTagValue(name); | |
563 uint16_t element = GetTagValue(name + 5); | |
564 return DicomTag(group, element); | |
565 } | |
566 | |
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567 #if 0 |
0 | 568 const DcmDataDictionary& dict = dcmDataDict.rdlock(); |
569 const DcmDictEntry* entry = dict.findEntry(name); | |
570 | |
571 if (entry == NULL) | |
572 { | |
573 dcmDataDict.unlock(); | |
62 | 574 throw OrthancException("Unknown DICOM tag"); |
0 | 575 } |
576 else | |
577 { | |
578 DcmTagKey key = entry->getKey(); | |
579 DicomTag tag(key.getGroup(), key.getElement()); | |
580 dcmDataDict.unlock(); | |
581 return tag; | |
582 } | |
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583 #else |
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584 DcmTag tag; |
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585 if (DcmTag::findTagFromName(name, tag).good()) |
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586 { |
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587 return DicomTag(tag.getGTag(), tag.getETag()); |
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588 } |
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589 else |
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590 { |
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591 throw OrthancException("Unknown DICOM tag"); |
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592 } |
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593 #endif |
0 | 594 } |
595 | |
596 | |
597 void FromDcmtkBridge::Print(FILE* fp, const DicomMap& m) | |
598 { | |
599 for (DicomMap::Map::const_iterator | |
656 | 600 it = m.map_.begin(); it != m.map_.end(); ++it) |
0 | 601 { |
602 DicomTag t = it->first; | |
603 std::string s = it->second->AsString(); | |
319 | 604 fprintf(fp, "0x%04x 0x%04x (%s) [%s]\n", t.GetGroup(), t.GetElement(), GetName(t).c_str(), s.c_str()); |
0 | 605 } |
606 } | |
607 | |
608 | |
609 void FromDcmtkBridge::ToJson(Json::Value& result, | |
610 const DicomMap& values) | |
611 { | |
612 if (result.type() != Json::objectValue) | |
613 { | |
62 | 614 throw OrthancException(ErrorCode_BadParameterType); |
0 | 615 } |
616 | |
617 result.clear(); | |
618 | |
619 for (DicomMap::Map::const_iterator | |
656 | 620 it = values.map_.begin(); it != values.map_.end(); ++it) |
0 | 621 { |
622 result[GetName(it->first)] = it->second->AsString(); | |
623 } | |
624 } | |
176 | 625 |
626 | |
788 | 627 std::string FromDcmtkBridge::GenerateUniqueIdentifier(ResourceType level) |
176 | 628 { |
629 char uid[100]; | |
630 | |
631 switch (level) | |
632 { | |
788 | 633 case ResourceType_Patient: |
311 | 634 // The "PatientID" field is of type LO (Long String), 64 |
635 // Bytes Maximum. An UUID is of length 36, thus it can be used | |
636 // as a random PatientID. | |
637 return Toolbox::GenerateUuid(); | |
306
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638 |
788 | 639 case ResourceType_Instance: |
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640 return dcmGenerateUniqueIdentifier(uid, SITE_INSTANCE_UID_ROOT); |
176 | 641 |
788 | 642 case ResourceType_Series: |
302
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643 return dcmGenerateUniqueIdentifier(uid, SITE_SERIES_UID_ROOT); |
176 | 644 |
788 | 645 case ResourceType_Study: |
302
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646 return dcmGenerateUniqueIdentifier(uid, SITE_STUDY_UID_ROOT); |
176 | 647 |
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648 default: |
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649 throw OrthancException(ErrorCode_ParameterOutOfRange); |
176 | 650 } |
651 } | |
652 | |
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653 bool FromDcmtkBridge::SaveToMemoryBuffer(std::string& buffer, |
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654 DcmDataset& dataSet) |
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655 { |
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656 // Determine the transfer syntax which shall be used to write the |
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657 // information to the file. We always switch to the Little Endian |
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658 // syntax, with explicit length. |
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659 |
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660 // http://support.dcmtk.org/docs/dcxfer_8h-source.html |
661
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661 |
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662 |
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663 /** |
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664 * Note that up to Orthanc 0.7.1 (inclusive), the |
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665 * "EXS_LittleEndianExplicit" was always used to save the DICOM |
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666 * dataset into memory. We now keep the original transfer syntax |
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667 * (if available). |
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668 **/ |
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669 E_TransferSyntax xfer = dataSet.getOriginalXfer(); |
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670 if (xfer == EXS_Unknown) |
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671 { |
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672 // No information about the original transfer syntax: This is |
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673 // most probably a DICOM dataset that was read from memory. |
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674 xfer = EXS_LittleEndianExplicit; |
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675 } |
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676 |
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677 E_EncodingType encodingType = /*opt_sequenceType*/ EET_ExplicitLength; |
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678 |
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679 // Create the meta-header information |
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680 DcmFileFormat ff(&dataSet); |
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681 ff.validateMetaInfo(xfer); |
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682 |
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683 // Create a memory buffer with the proper size |
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684 uint32_t s = ff.calcElementLength(xfer, encodingType); |
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685 buffer.resize(s); |
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686 DcmOutputBufferStream ob(&buffer[0], s); |
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687 |
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688 // Fill the memory buffer with the meta-header and the dataset |
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689 ff.transferInit(); |
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690 OFCondition c = ff.write(ob, xfer, encodingType, NULL, |
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691 /*opt_groupLength*/ EGL_recalcGL, |
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692 /*opt_paddingType*/ EPD_withoutPadding); |
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693 ff.transferEnd(); |
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694 |
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695 // Handle errors |
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696 if (c.good()) |
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697 { |
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698 return true; |
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699 } |
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700 else |
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701 { |
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702 buffer.clear(); |
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703 return false; |
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704 } |
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705 } |
0 | 706 } |