1 /*=========================================================================
4 Module: $RCSfile: gdcmSerieHelper.cxx,v $
6 Date: $Date: 2006/05/30 08:10:19 $
7 Version: $Revision: 1.53 $
9 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
10 l'Image). All rights reserved. See Doc/License.txt or
11 http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
13 This software is distributed WITHOUT ANY WARRANTY; without even
14 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 PURPOSE. See the above copyright notices for more information.
17 =========================================================================*/
19 #include "gdcmSerieHelper.h"
20 #include "gdcmDirList.h"
22 //#include "gdcmDictEntry.h" // for TranslateToKey : no more !
23 #include "gdcmDebug.h"
30 #include <stdio.h> //for sscanf
35 //-----------------------------------------------------------------------------
36 // Constructor / Destructor
38 * \brief Constructor from a given SerieHelper
40 SerieHelper::SerieHelper()
42 m_UseSeriesDetails = false;
44 UserLessThanFunction = 0;
49 * \brief Canonical destructor.
51 SerieHelper::~SerieHelper()
57 * \brief Preventively, clear everything at constructor time.
58 * ( use it at destructor time.)
60 void SerieHelper::ClearAll()
62 // For all the 'Single SerieUID' Filesets that may already exist
63 FileList *l = GetFirstSingleSerieUIDFileSet();
66 // For all the gdcm::File of a File set
67 for (gdcm::FileList::iterator it = l->begin();
71 (*it)->Delete(); // remove each entry
74 delete l; // remove the container
75 l = GetNextSingleSerieUIDFileSet();
77 // Need to clear that too:
78 SingleSerieUIDFileSetHT.clear();
81 //-----------------------------------------------------------------------------
83 //-----------------------------------------------------------------------------
87 * \brief add a gdcm::File to the Fileset corresponding to its Serie UID
88 * @param filename Name of the file to deal with
90 void SerieHelper::AddFileName(std::string const &filename)
92 // Create a DICOM file
93 File *header = File::New();
94 header->SetLoadMode(LoadMode);
95 header->SetFileName( filename );
98 if ( header->IsReadable() )
100 if ( !AddFile( header ) )
102 // at least one rule was unmatched we need to deallocate the file:
108 gdcmWarningMacro("Could not read file: " << filename );
114 * \brief add a gdcm::File to the first (and supposed to be unique) file set
115 * of the gdcm::SerieHelper.
116 * \warning : this method should be used by aware users only!
117 * Passing a gdcm::File* has the same effect than passing a file name!
118 * \todo : decide which one is wrong (the method, or the commentary)!
119 * the following comment doesn't match the method :-(
120 * User is supposed to know the files he want to deal with
121 * and consider them they belong to the same Serie
122 * (even if their Serie UID is different)
123 * user will probabely OrderFileList() this list (actually, ordering
124 * user choosen gdm::File is the sole interest of this method)
125 * Moreover, using vtkGdcmReader::SetCoherentFileList() will avoid
126 * vtkGdcmReader parsing twice the same files.
127 * *no* coherence check is performed, but those specified
128 * by SerieHelper::AddRestriction()
129 * @param header gdcm::File* of the file to deal with
130 * @return true if file was added, false if file was rejected
132 bool SerieHelper::AddFile(File *header)
135 // First step the user has defined a set of rules for the DICOM
136 // he is looking for.
137 // make sure the file correspond to his set of rules:
140 for(SerieExRestrictions::iterator it2 = ExRestrictions.begin();
141 it2 != ExRestrictions.end();
144 const ExRule &r = *it2;
145 s = header->GetEntryString( r.group, r.elem );
146 if ( !Util::CompareDicomString(s, r.value.c_str(), r.op) )
148 // Argh ! This rule is unmatched; let's just quit
154 if ( allrules ) // all rules are respected:
156 // Allright! we have a found a DICOM that matches the user expectation.
157 // Let's add it to the specific 'id' which by default is uid (Serie UID)
158 // but can be `refined` by user with more paramater (see AddRestriction(g,e))
160 std::string id = CreateUniqueSeriesIdentifier( header );
161 // if id == GDCM_UNFOUND then consistently we should find GDCM_UNFOUND
162 // no need here to do anything special
164 if ( SingleSerieUIDFileSetHT.count(id) == 0 )
166 gdcmDebugMacro(" New/gdcmSerieHelper.cxx Serie UID :[" << id << "]");
167 // create a std::list in 'id' position
168 SingleSerieUIDFileSetHT[id] = new FileList;
170 // Current Serie UID and DICOM header seems to match add the file:
171 SingleSerieUIDFileSetHT[id]->push_back( header );
175 // one rule not matched, tell user:
182 * \brief add a rule for restricting a DICOM file to be in the serie we are
183 * trying to find. For example you can select only the DICOM files from a
184 * directory which would have a particular EchoTime==4.0.
185 * This method is a user level, value is not required to be formatted as a DICOM
187 * \todo find a trick to allow user to say if he wants the Rectrictions
188 * to be *ored* (and not only *anded*)
189 * @param key Target tag we want restrict on a given value
190 * @param value value to be checked to exclude File
191 * @param op operator we want to use to check
193 void SerieHelper::AddRestriction(TagKey const &key,
194 std::string const &value, int op)
201 ExRestrictions.push_back( r );
204 void SerieHelper::AddRestriction(TagKey const &key)
209 ExRefine.push_back( r );
212 //#ifndef GDCM_LEGACY_REMOVE
214 * \brief add a rule for restricting a DICOM file to be in the serie we are
215 * trying to find. For example you can select only the DICOM files from a
216 * directory which would have a particular EchoTime==4.0.
217 * This method is a user level, value is not required to be formatted as a DICOM
219 * @param group tag group number we want restrict on a given value
220 * @param elem tag element number we want restrict on a given value
221 * @param value value to be checked to exclude File
222 * @param op operator we want to use to check
223 * @deprecated use : AddRestriction(TagKey const &key,
224 * std::string const &value, int op);
227 void SerieHelper::AddRestriction(uint16_t group, uint16_t elem,
228 std::string const &value, int op)
230 TagKey t(group, elem);
231 AddRestriction(t, value, op);
237 * \brief add an extra 'SerieDetail' for building a 'Serie Identifier'
238 * that ensures (hope so) File constistency (Series Instance UID doesn't.
239 * @param group tag group number we want restrict on a given value
240 * @param elem tag element number we want restrict on a given value
241 * @param convert wether we want 'convertion', to allow further ordering
242 * e.g : 100 would be *before* 20; 000020.00 vs 00100.00 : OK
244 void SerieHelper::AddSeriesDetail(uint16_t group, uint16_t elem, bool convert)
251 ExDetails.push_back( d );
254 * \brief Sets the root Directory
255 * @param dir Name of the directory to deal with
256 * @param recursive whether we want explore recursively the root Directory
258 void SerieHelper::SetDirectory(std::string const &dir, bool recursive)
260 DirList dirList(dir, recursive); // OS specific
262 DirListType filenames_list = dirList.GetFilenames();
263 for( DirListType::const_iterator it = filenames_list.begin();
264 it != filenames_list.end(); ++it)
271 * \brief Sorts the given Fileset
272 * \warning This could be implemented in a 'Strategy Pattern' approach
273 * But as I don't know how to do it, I leave it this way
274 * BTW, this is also a Strategy, I don't know this is
275 * the best approach :)
277 void SerieHelper::OrderFileList(FileList *fileSet)
279 // Only computed during ImagePositionPatientOrdering
280 // (need to sort the FileList using IPP and IOP !)
283 if ( SerieHelper::UserLessThanFunction )
285 UserOrdering( fileSet );
288 else if ( ImagePositionPatientOrdering( fileSet ) )
292 else if ( ImageNumberOrdering(fileSet ) )
298 FileNameOrdering(fileSet );
303 * \brief Elementary coherence checking of the files with the same Serie UID
304 * Only sizes and pixel type are checked right now ...
306 bool SerieHelper::IsCoherent(FileList *fileSet)
308 if(fileSet->size() == 1)
311 FileList::const_iterator it = fileSet->begin();
313 int nX = (*it)->GetXSize();
314 int nY = (*it)->GetYSize();
315 int pixelSize = (*it)->GetPixelSize();
316 bool signedPixelData = (*it)->IsSignedPixelData();
319 it != fileSet->end();
322 if ( (*it)->GetXSize() != nX )
324 if ( (*it)->GetYSize() != nY )
326 if ( (*it)->GetPixelSize() != pixelSize )
328 if ( (*it)->IsSignedPixelData() != signedPixelData )
330 // probabely more is to be checked (?)
335 //#ifndef GDCM_LEGACY_REMOVE
337 * \brief accessor (DEPRECATED : use GetFirstSingleSerieUIDFileSet )
338 * Warning : 'coherent' means here they have the same Serie UID
339 * @return The first FileList if found, otherwhise NULL
342 FileList *SerieHelper::GetFirstCoherentFileList()
344 ItFileSetHt = SingleSerieUIDFileSetHT.begin();
345 if ( ItFileSetHt != SingleSerieUIDFileSetHT.end() )
346 return ItFileSetHt->second;
351 * \brief accessor (DEPRECATED : use GetNextSingleSerieUIDFileSet )
352 * Warning : 'coherent' means here they have the same Serie UID
353 * \note : meaningfull only if GetFirstCoherentFileList() already called
354 * @return The next FileList if found, otherwhise NULL
357 FileList *SerieHelper::GetNextCoherentFileList()
359 gdcmAssertMacro (ItFileSetHt != SingleSerieUIDFileSetHT.end());
362 if ( ItFileSetHt != SingleSerieUIDFileSetHT.end() )
363 return ItFileSetHt->second;
369 * \brief accessor (DEPRECATED : use GetSingleSerieUIDFileSet )
370 * Warning : 'coherent' means here they have the same Serie UID
371 * @param SerieUID SerieUID
372 * \return pointer to the FileList if found, otherwhise NULL
375 FileList *SerieHelper::GetCoherentFileList(std::string SerieUID)
377 if ( SingleSerieUIDFileSetHT.count(SerieUID) == 0 )
379 return SingleSerieUIDFileSetHT[SerieUID];
386 * \brief Get the first Fileset while visiting the SingleSerieUIDFileSetmap
387 * @return The first FileList (SingleSerieUIDFileSet) if found, otherwhise 0
389 FileList *SerieHelper::GetFirstSingleSerieUIDFileSet()
391 ItFileSetHt = SingleSerieUIDFileSetHT.begin();
392 if ( ItFileSetHt != SingleSerieUIDFileSetHT.end() )
393 return ItFileSetHt->second;
398 * \brief Get the next Fileset while visiting the SingleSerieUIDFileSetmap
399 * \note : meaningfull only if GetNextSingleSerieUIDFileSet() already called
400 * @return The next FileList (SingleSerieUIDFileSet) if found, otherwhise 0
402 FileList *SerieHelper::GetNextSingleSerieUIDFileSet()
404 gdcmAssertMacro (ItFileSetHt != SingleSerieUIDFileSetHT.end());
407 if ( ItFileSetHt != SingleSerieUIDFileSetHT.end() )
408 return ItFileSetHt->second;
413 * \brief Get the SingleSerieUIDFileSet according to its Serie UID
414 * @param SerieUID SerieUID to retrieve
415 * \return pointer to the FileList (SingleSerieUIDFileSet) if found, otherwhise 0
417 FileList *SerieHelper::GetSingleSerieUIDFileSet(std::string SerieUID)
419 if ( SingleSerieUIDFileSetHT.count(SerieUID) == 0 )
421 return SingleSerieUIDFileSetHT[SerieUID];
425 * \brief Splits a Single SerieUID Fileset according to the Orientations
426 * @param fileSet File Set to be splitted
427 * \return std::map of 'Xcoherent' File sets
430 XCoherentFileSetmap SerieHelper::SplitOnOrientation(FileList *fileSet)
432 XCoherentFileSetmap CoherentFileSet;
434 int nb = fileSet->size();
436 return CoherentFileSet;
438 std::string strOrient;
439 std::ostringstream ossOrient;
441 FileList::const_iterator it = fileSet->begin();
444 it != fileSet->end();
447 // Information is in :
448 // 0020 0037 : Image Orientation (Patient) or
449 // 0020 0035 : Image Orientation (RET)
451 // Let's build again the 'cosines' string, to be sure of it's format
452 (*it)->GetImageOrientationPatient(iop);
455 for (int i = 1; i < 6; i++)
460 strOrient = ossOrient.str();
462 if ( CoherentFileSet.count(strOrient) == 0 )
464 gdcmDebugMacro(" New Orientation :[" << strOrient << "]");
465 // create a File set in 'orientation' position
466 CoherentFileSet[strOrient] = new FileList;
468 // Current Orientation and DICOM header match; add the file:
469 CoherentFileSet[strOrient]->push_back( (*it) );
471 return CoherentFileSet;
475 * \brief Splits a 'Single SerieUID' Fileset according to the Positions
476 * @param fileSet File Set to be splitted
477 * \return std::map of 'Xcoherent' File sets
480 XCoherentFileSetmap SerieHelper::SplitOnPosition(FileList *fileSet)
482 XCoherentFileSetmap CoherentFileSet;
484 int nb = fileSet->size();
486 return CoherentFileSet;
488 std::string strImPos; // read on disc
489 std::ostringstream ossPosition;
490 std::string strPosition; // re computed
491 FileList::const_iterator it = fileSet->begin();
494 it != fileSet->end();
497 // Information is in :
498 // 0020,0032 : Image Position Patient
499 // 0020,0030 : Image Position (RET)
501 strImPos = (*it)->GetEntryString(0x0020,0x0032);
502 if ( strImPos == GDCM_UNFOUND)
504 gdcmWarningMacro( "Unfound Image Position Patient (0020,0032)");
505 strImPos = (*it)->GetEntryString(0x0020,0x0030); // For ACR-NEMA images
506 if ( strImPos == GDCM_UNFOUND )
508 gdcmWarningMacro( "Unfound Image Position (RET) (0020,0030)");
509 // User wants to split on the 'Position'
510 // No 'Position' info found.
511 // We return an empty Htable !
512 return CoherentFileSet;
516 if ( sscanf( strImPos.c_str(), "%f \\%f \\%f ",
517 &pos[0], &pos[1], &pos[2]) != 3 )
519 gdcmWarningMacro( "Wrong number for Position : ["
520 << strImPos << "]" );
521 return CoherentFileSet;
524 // Let's build again the 'position' string, to be sure of it's format
526 ossPosition << pos[0];
527 for (int i = 1; i < 3; i++)
530 ossPosition << pos[i];
532 strPosition = ossPosition.str();
535 if ( CoherentFileSet.count(strPosition) == 0 )
537 gdcmDebugMacro(" New Position :[" << strPosition << "]");
538 // create a File set in 'position' position
539 CoherentFileSet[strPosition] = new FileList;
541 // Current Position and DICOM header match; add the file:
542 CoherentFileSet[strPosition]->push_back( (*it) );
544 return CoherentFileSet;
548 * \brief Splits a 'Single SerieUID' File set Coherent according to the
549 * value of a given Tag
550 * @param fileSet File Set to be splitted
551 * @param group group number of the target Element
552 * @param element element number of the target Element
553 * \return std::map of 'Xcoherent' File sets
556 XCoherentFileSetmap SerieHelper::SplitOnTagValue(FileList *fileSet,
557 uint16_t group, uint16_t element)
559 XCoherentFileSetmap CoherentFileSet;
561 int nb = fileSet->size();
563 return CoherentFileSet;
565 std::string strTagValue; // read on disc
567 FileList::const_iterator it = fileSet->begin();
570 it != fileSet->end();
573 // Information is in :
574 // 0020,0032 : Image Position Patient
575 // 0020,0030 : Image Position (RET)
577 strTagValue = (*it)->GetEntryString(group,element);
579 if ( CoherentFileSet.count(strTagValue) == 0 )
581 gdcmDebugMacro(" New Tag Value :[" << strTagValue << "]");
582 // create a File set in 'position' position
583 CoherentFileSet[strTagValue] = new FileList;
585 // Current Tag value and DICOM header match; add the file:
586 CoherentFileSet[strTagValue]->push_back( (*it) );
588 return CoherentFileSet;
591 //-----------------------------------------------------------------------------
594 //-----------------------------------------------------------------------------
597 * \brief sorts the images, according to their Patient Position.
598 * As a side effect, it computes the ZSpacing, according to Jolinda Smith'
599 * algorithm. (get it with double GetZSpacing() !)
600 * We may order, considering :
601 * -# Image Position Patient
604 * -# More to come :-)
605 * \note : FileList = std::vector<File* >
606 * @param fileList Coherent File list (same Serie UID) to sort
607 * @return false only if the header is bugged !
609 bool SerieHelper::ImagePositionPatientOrdering( FileList *fileList )
610 //based on Jolinda Smith's algorithm
612 //Tags always use the same coordinate system, where "x" is left
613 //to right, "y" is posterior to anterior, and "z" is foot to head (RAH).
615 //iop is calculated based on the file file
620 double min = 0, max = 0;
622 ZSpacing = -1.0; // will be updated if process doesn't fail
624 std::multimap<double,File *> distmultimap;
625 // Use a multimap to sort the distances from 0,0,0
626 for ( FileList::const_iterator
627 it = fileList->begin();
628 it != fileList->end(); ++it )
632 (*it)->GetImageOrientationPatient( cosines );
634 // The "Image Orientation Patient" tag gives the direction cosines
635 // for the rows and columns for the three axes defined above.
636 // Typical axial slices will have a value 1/0/0/0/1/0:
637 // rows increase from left to right,
638 // columns increase from posterior to anterior. This is your everyday
639 // "looking up from the bottom of the head with the eyeballs up" image.
641 // The "Image Position Patient" tag gives the coordinates of the first
642 // voxel in the image in the "RAH" coordinate system, relative to some
645 // First, calculate the slice normal from IOP :
647 // You only have to do this once for all slices in the volume. Next,
648 // for each slice, calculate the distance along the slice normal
649 // using the IPP ("Image Position Patient") tag.
650 // ("dist" is initialized to zero before reading the first slice) :
651 normal[0] = cosines[1]*cosines[5] - cosines[2]*cosines[4];
652 normal[1] = cosines[2]*cosines[3] - cosines[0]*cosines[5];
653 normal[2] = cosines[0]*cosines[4] - cosines[1]*cosines[3];
655 // For each slice (here : the first), calculate the distance along
656 // the slice normal using the IPP tag
658 ipp[0] = (*it)->GetXOrigin();
659 ipp[1] = (*it)->GetYOrigin();
660 ipp[2] = (*it)->GetZOrigin();
663 for ( int i = 0; i < 3; ++i )
665 dist += normal[i]*ipp[i];
668 distmultimap.insert(std::pair<const double,File *>(dist, *it));
675 // Next, for each slice, calculate the distance along the slice normal
677 ipp[0] = (*it)->GetXOrigin();
678 ipp[1] = (*it)->GetYOrigin();
679 ipp[2] = (*it)->GetZOrigin();
682 for ( int i = 0; i < 3; ++i )
684 dist += normal[i]*ipp[i];
687 distmultimap.insert(std::pair<const double,File *>(dist, *it));
689 min = (min < dist) ? min : dist;
690 max = (max > dist) ? max : dist;
694 // Find out if min/max are coherent
697 gdcmWarningMacro("Looks like all images have the exact same image position"
698 << ". No PositionPatientOrdering sort performed" );
702 // Check to see if image shares a common position
704 for (std::multimap<double, File *>::iterator it2 = distmultimap.begin();
705 it2 != distmultimap.end();
708 if (distmultimap.count((*it2).first) != 1)
710 gdcmErrorMacro("File: "
711 << ((*it2).second->GetFileName())
714 << " position is not unique");
724 // Now, we could calculate Z Spacing as the difference
725 // between the "dist" values for the first two slices.
727 // The following (un)-commented out code is let here
728 // to be re-used by whomsoever is interested...
730 std::multimap<double, File *>::iterator it5 = distmultimap.begin();
731 double d1 = (*it5).first;
733 double d2 = (*it5).first;
736 ZSpacing = - ZSpacing;
738 fileList->clear(); // doesn't delete list elements, only nodes
740 // Acording to user requierement, we sort direct order or reverse order.
743 for (std::multimap<double, File *>::iterator it3 = distmultimap.begin();
744 it3 != distmultimap.end();
747 fileList->push_back( (*it3).second );
750 else // user asked for reverse order
752 std::multimap<double, File *>::const_iterator it4;
753 it4 = distmultimap.end();
757 fileList->push_back( (*it4).second );
758 } while (it4 != distmultimap.begin() );
761 distmultimap.clear();
766 bool SerieHelper::ImageNumberLessThan(File *file1, File *file2)
768 return file1->GetImageNumber() < file2->GetImageNumber();
771 bool SerieHelper::ImageNumberGreaterThan(File *file1, File *file2)
773 return file1->GetImageNumber() > file2->GetImageNumber();
777 * \brief sorts the images, according to their Image Number
778 * \note Works only on bona fide files (i.e image number is a character string
779 * corresponding to an integer)
780 * within a bona fide serie (i.e image numbers are consecutive)
781 * @param fileList File set (same Serie UID) to sort
782 * @return false if non bona fide stuff encountered
784 bool SerieHelper::ImageNumberOrdering(FileList *fileList)
787 int n = fileList->size();
789 FileList::const_iterator it = fileList->begin();
790 min = max = (*it)->GetImageNumber();
792 for (; it != fileList->end(); ++it, ++n)
794 pos = (*it)->GetImageNumber();
795 min = (min < pos) ? min : pos;
796 max = (max > pos) ? max : pos;
799 // Find out if image numbers are coherent (consecutive)
800 if ( min == max || max == 0 || max >= (n+min) )
802 gdcmWarningMacro( " 'Image numbers' not coherent. "
803 << " No ImageNumberOrdering sort performed.");
807 Sort(fileList,SerieHelper::ImageNumberLessThan);
809 Sort(fileList,SerieHelper::ImageNumberGreaterThan);
814 bool SerieHelper::FileNameLessThan(File *file1, File *file2)
816 return file1->GetFileName() < file2->GetFileName();
819 bool SerieHelper::FileNameGreaterThan(File *file1, File *file2)
821 return file1->GetFileName() > file2->GetFileName();
824 * \brief sorts the images, according to their File Name
825 * @param fileList Coherent File list (same Serie UID) to sort
826 * @return false only if the header is bugged !
828 bool SerieHelper::FileNameOrdering(FileList *fileList)
831 Sort(fileList,SerieHelper::FileNameLessThan);
833 Sort(fileList,SerieHelper::FileNameGreaterThan);
839 * \brief sorts the images, according to user supplied function
840 * @param fileList Coherent File list (same Serie UID) to sort
841 * @return false only if the header is bugged !
843 bool SerieHelper::UserOrdering(FileList *fileList)
845 Sort(fileList,SerieHelper::UserLessThanFunction);
848 std::reverse(fileList->begin(), fileList->end());
853 //-----------------------------------------------------------------------------
856 * \brief Canonical printer.
858 void SerieHelper::Print(std::ostream &os, std::string const &indent)
860 // For all the Coherent File lists of the gdcm::Serie
861 SingleSerieUIDFileSetmap::iterator itl = SingleSerieUIDFileSetHT.begin();
862 if ( itl == SingleSerieUIDFileSetHT.end() )
864 gdcmWarningMacro( "No SingleSerieUID File set found" );
867 while (itl != SingleSerieUIDFileSetHT.end())
869 os << "Serie UID :[" << itl->first << "]" << std::endl;
871 // For all the files of a SingleSerieUID File set
872 for (FileList::iterator it = (itl->second)->begin();
873 it != (itl->second)->end();
876 os << indent << " --- " << (*it)->GetFileName() << std::endl;
882 void SerieHelper::CreateDefaultUniqueSeriesIdentifier()
884 // If the user requests, additional information can be appended
885 // to the SeriesUID to further differentiate volumes in the DICOM
886 // objects being processed.
888 // 0020 0011 Series Number
889 // A scout scan prior to a CT volume scan can share the same
890 // SeriesUID, but they will sometimes have a different Series Number
891 AddRestriction( TagKey(0x0020, 0x0011) );
892 // 0018 0024 Sequence Name
893 // For T1-map and phase-contrast MRA, the different flip angles and
894 // directions are only distinguished by the Sequence Name
895 AddRestriction( TagKey(0x0018, 0x0024) );
896 // 0018 0050 Slice Thickness
897 // On some CT systems, scout scans and subsequence volume scans will
898 // have the same SeriesUID and Series Number - YET the slice
899 // thickness will differ from the scout slice and the volume slices.
900 AddRestriction( TagKey(0x0018, 0x0050));
902 // If the 2D images in a sequence don't have the same number of rows,
903 // then it is difficult to reconstruct them into a 3D volume.
904 AddRestriction( TagKey(0x0028, 0x0010));
906 // If the 2D images in a sequence don't have the same number of columns,
907 // then it is difficult to reconstruct them into a 3D volume.
908 AddRestriction( TagKey(0x0028, 0x0011));
912 * \brief Heuristics to *try* to build a Serie Identifier that would ensure
913 * all the images are coherent.
915 * By default, uses the SeriesUID. If UseSeriesDetails(true) has been called,
916 * then additional identifying information is used.
917 * We allow user to add his own critierions, using AddSeriesDetail
918 * (he knows more than we do about his images!)
919 * ex : in tagging series, the only pertnent tag is
920 * 0018|1312 [In-plane Phase Encoding Direction] value : ROW/COLUMN
921 * @param inFile gdcm::File we want to build a Serie Identifier for.
922 * @return the SeriesIdentifier
924 std::string SerieHelper::CreateUniqueSeriesIdentifier( File *inFile )
926 if( inFile->IsReadable() )
928 // 0020 000e UI REL Series Instance UID
929 std::string uid = inFile->GetEntryString (0x0020, 0x000e);
930 std::string id = uid.c_str();
931 if(m_UseSeriesDetails)
933 for(SerieExRestrictions::iterator it2 = ExRefine.begin();
934 it2 != ExRefine.end();
937 const ExRule &r = *it2;
938 std::string s = inFile->GetEntryString( r.group, r.elem );
939 if( s == gdcm::GDCM_UNFOUND )
943 if( id == uid && !s.empty() )
945 id += "."; // add separator
950 // Eliminate non-alnum characters, including whitespace...
951 // that may have been introduced by concats.
952 for(unsigned int i=0; i<id.size(); i++)
956 || (id[i] >= 'a' && id[i] <= 'z')
957 || (id[i] >= '0' && id[i] <= '9')
958 || (id[i] >= 'A' && id[i] <= 'Z')))
965 else // Could not open inFile
967 gdcmWarningMacro("Could not parse series info.");
968 std::string id = gdcm::GDCM_UNFOUND;
974 * \brief Allow user to build is own File Identifier (to be able to sort
975 * temporal series just as he wants)
976 * Criterions will be set with AddSeriesDetail.
977 * (Maybe the method should be moved elsewhere
978 * -File class? FileHelper class?-
979 * @return FileIdentifier (Tokenizable on '%%%'. Hope it's enough !)
981 std::string SerieHelper::CreateUserDefinedFileIdentifier( File * inFile )
983 // Deal with all user supplied tags.
984 // (user knows more than we do about his images!)
989 char charConverted[17];
991 for(SeriesExDetails::iterator it2 = ExDetails.begin();
992 it2 != ExDetails.end();
995 const ExDetail &r = *it2;
996 s = inFile->GetEntryString( r.group, r.elem );
998 // User is allowed to ask 'convertion', to allow further ordering
999 // e.g : 100 would be *before* 20; 000020.00 vs 00100.00 : OK
1002 if ( s != GDCM_UNFOUND) // Don't convert unfound fields !
1004 converted = atof(s.c_str());
1005 // probabely something much more complicated is possible,
1006 // using C++ features
1007 /// \todo check the behaviour when there are >0 and <0 numbers
1008 sprintf(charConverted, "%016.6f",converted);
1012 // Eliminate non-alphanum characters, including whitespace.
1013 for(unsigned int i=0; i<s.size(); i++)
1016 && !( s[i] == '.' || s[i] == '%'
1017 || (s[i] >= 'a' && s[i] <= 'z')
1018 || (s[i] >= '0' && s[i] <= '9')
1019 || (s[i] >= 'A' && s[i] <= 'Z')))
1026 id += "%%%"; // make the FileIdentifier Tokenizable
1032 //-----------------------------------------------------------------------------
1035 * \brief Sort FileList.
1037 void SerieHelper::Sort(FileList *fileList, bool (*pt2Func)( File *file1, File *file2) )
1039 std::sort(fileList->begin(), fileList->end(), pt2Func );
1043 #ifndef GDCM_LEGACY_REMOVE
1044 bool SerieHelper::AddGdcmFile(File* header)
1046 return AddFile(header);
1051 //-----------------------------------------------------------------------------
1052 } // end namespace gdcm