/*========================================================================= Program: GDCM (Grassroots DICOM). A DICOM library Module: $URL$ Copyright (c) 2006-2010 Mathieu Malaterre All rights reserved. See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the above copyright notice for more information. =========================================================================*/ /* * Simple example to show how to use Scanner API. * It exposes the three different cases: * - DICOM Attribute is present and has a value * - DICOM Attribute is present and has no value * - DICOM Attribute is not present at all * It also shows the purpose of the function 'IsKey' to detect whether or * not the file has been read by the gdcm::Scanner. Technically most of the time * if a file is not a 'Key' this is because it is not a DICOM file. You need to use * gdcm::System::FileExists to decide whether or not the file actually exist on the disk. * * It was tested on this particular image: * ./SimpleScanner gdcmData/012345.002.050.dcm */ #include "gdcmScanner.h" int main(int argc, char *argv[]) { if( argc < 2 ) { return 1; } const char *filename = argv[1]; const char filename_invalid[] = "this is a file that may not exist on this disk.dcm"; gdcm::Scanner s; const gdcm::Tag tag_array[] = { gdcm::Tag(0x8,0x50), gdcm::Tag(0x8,0x51), gdcm::Tag(0x8,0x60), }; s.AddTag( tag_array[0] ); s.AddTag( tag_array[1] ); s.AddTag( tag_array[2] ); gdcm::Directory::FilenamesType filenames; filenames.push_back( filename ); filenames.push_back( filename_invalid ); if( !s.Scan( filenames ) ) { return 1; } //s.Print( std::cout ); if( s.IsKey( filename ) ) { std::cout << "INFO:" << filename << " is a proper Key for the Scanner (this is a DICOM file)" << std::endl; } if( !s.IsKey( filename_invalid ) ) { std::cout << "INFO:" << filename_invalid << " is not a proper Key for the Scanner (this is either not a DICOM file or file does not exist)" << std::endl; } gdcm::Scanner::TagToValue const &ttv = s.GetMapping(filename); const gdcm::Tag *ptag = tag_array; for( ; ptag != tag_array + 3; ++ptag ) { gdcm::Scanner::TagToValue::const_iterator it = ttv.find( *ptag ); if( it != ttv.end() ) { std::cout << *ptag << " was properly found in this file" << std::endl; // it contains a pair of value. the first one is the actual tag, so the following is always true: // *ptag == it->first // The second part is the actual value (stored as RAW strings). You will have to reinterpret this string // if VR for *ptag is not VR::VRASCII ! const char *value = it->second; if( *value ) { std::cout << " It has the value: " << value << std::endl; } else { std::cout << " It has no value (empty)" << std::endl; } } else { std::cout << "Sorry " << *ptag << " could not be found in this file" << std::endl; } } return 0; }