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annotate Framework/Toolbox/ParsedDicomDataset.cpp @ 1180:9c8f557ea799 broker

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ParsedDicomDataset to speed up loading RT-STRUCT from parsed DICOM files
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 20 Nov 2019 17:34:17 +0100
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children 0ca50d275b9a
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9c8f557ea799 ParsedDicomDataset to speed up loading RT-STRUCT from parsed DICOM files
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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22 #include "ParsedDicomDataset.h"
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24 #include <dcmtk/dcmdata/dcfilefo.h>
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26 namespace OrthancStone
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27 {
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28 static DcmItem* LookupPath(Orthanc::ParsedDicomFile& dicom,
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29 const OrthancPlugins::DicomPath& path)
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30 {
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31 DcmItem* node = dicom.GetDcmtkObject().getDataset();
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32
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33 for (size_t i = 0; i < path.GetPrefixLength(); i++)
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34 {
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35 const OrthancPlugins::DicomTag& tmp = path.GetPrefixTag(i);
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36 DcmTagKey tag(tmp.GetGroup(), tmp.GetElement());
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37
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38 DcmSequenceOfItems* sequence = NULL;
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39 if (!node->findAndGetSequence(tag, sequence).good() ||
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40 sequence == NULL)
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41 {
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42 return NULL;
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43 }
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45 unsigned long pos = path.GetPrefixIndex(i);
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46 if (pos >= sequence->card())
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47 {
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48 return NULL;
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49 }
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51 node = sequence->getItem(pos);
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52 if (node == NULL)
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53 {
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54 return NULL;
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55 }
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56 }
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58 return node;
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59 }
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62 bool ParsedDicomDataset::GetStringValue(std::string& result,
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63 const OrthancPlugins::DicomPath& path) const
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64 {
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65 DcmItem* node = LookupPath(dicom_, path);
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67 if (node != NULL)
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68 {
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69 DcmTagKey tag(path.GetFinalTag().GetGroup(), path.GetFinalTag().GetElement());
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71 const char* s = NULL;
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72 if (node->findAndGetString(tag, s).good() &&
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73 s != NULL)
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74 {
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75 result.assign(s);
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76 return true;
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77 }
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78 }
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80 return false;
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81 }
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84 bool ParsedDicomDataset::GetSequenceSize(size_t& size,
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85 const OrthancPlugins::DicomPath& path) const
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86 {
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87 DcmItem* node = LookupPath(dicom_, path);
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89 if (node != NULL)
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90 {
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91 DcmTagKey tag(path.GetFinalTag().GetGroup(), path.GetFinalTag().GetElement());
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93 DcmSequenceOfItems* s = NULL;
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94 if (node->findAndGetSequence(tag, s).good() &&
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95 s != NULL)
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96 {
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97 size = s->card();
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98 return true;
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99 }
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100 }
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102 return false;
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103 }
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104 }