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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 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.
=========================================================================*/
#include "gdcmIPPSorter.h"
#include "gdcmDirectory.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"
#include "gdcmTrace.h"
#include "gdcmAttribute.h"
// Sort image using Instance Number:
bool mysort(gdcm::DataSet const & ds1, gdcm::DataSet const & ds2 )
{
gdcm::Attribute<0x0020,0x0013> at1; // Instance Number
at1.Set( ds1 );
gdcm::Attribute<0x0020,0x0013> at2;
at2.Set( ds2 );
return at1 < at2;
}
int TestIPPSorter2(int argc, char *argv[])
{
const char *directory = gdcm::Testing::GetDataRoot();
std::vector<std::string> filenames;
if( argc == 2 )
{
gdcm::Trace::DebugOn();
directory = argv[1];
if( gdcm::System::FileIsDirectory( directory ) )
{
gdcm::Directory d;
unsigned int nfiles = d.Load( directory ); // no recursion
d.Print( std::cout );
std::cout << "done retrieving file list. " << nfiles << " files found." << std::endl;
filenames = d.GetFilenames();
}
else
{
std::cerr << "file:" << directory << " is not a directory" << std::endl;
return 1;
}
}
else
{
// default execution (nightly test)
// let's take 4 files that can be sorted:
std::string file0 = std::string(directory) + "/SIEMENS_MAGNETOM-12-MONO2-FileSeq0.dcm";
std::string file1 = std::string(directory) + "/SIEMENS_MAGNETOM-12-MONO2-FileSeq1.dcm";
std::string file2 = std::string(directory) + "/SIEMENS_MAGNETOM-12-MONO2-FileSeq2.dcm";
std::string file3 = std::string(directory) + "/SIEMENS_MAGNETOM-12-MONO2-FileSeq3.dcm";
// let's push them in random order (oh my god how are we going to succeed ??)
filenames.push_back( file1 );
filenames.push_back( file3 );
filenames.push_back( file2 );
filenames.push_back( file0 );
}
gdcm::IPPSorter s;
s.SetComputeZSpacing( true );
s.SetZSpacingTolerance( 1e-10 );
bool b = s.Sort( filenames );
if( !b )
{
std::cerr << "Failed to sort:" << directory << std::endl;
return 1;
}
std::cout << "Sorting succeeded:" << std::endl;
s.Print( std::cout );
double zspacing = s.GetZSpacing();
if(!zspacing)
{
std::cerr << "computation of ZSpacing failed." << std::endl;
return 1;
}
std::cout << "Found z-spacing:" << std::endl;
std::cout << s.GetZSpacing() << std::endl;
// Now apply a StableSort on them:
s.SetSortFunction( mysort );
s.StableSort( s.GetFilenames() );
s.Print( std::cout );
return 0;
}
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