ITK  4.9.0
Insight Segmentation and Registration Toolkit
SphinxExamples/src/Core/Common/ReRunPipelineWithChangingLargestPossibleRegion/Code.cxx
/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
int main( int argc, char* argv[] )
{
if( argc != 4 )
{
std::cerr << "Usage: "<< std::endl;
std::cerr << argv[0];
std::cerr << " <seriesFormat> <startIndex> <endIndex>";
std::cerr << std::endl;
return EXIT_FAILURE;
}
const char * seriesFormat = argv[1];
unsigned int startIndex = atoi( argv[2] );
unsigned int endIndex = atoi( argv[3] );
const unsigned int Dimension = 3;
typedef unsigned char PixelType;
typedef itk::NumericSeriesFileNames NameGeneratorType;
NameGeneratorType::Pointer nameGenerator = NameGeneratorType::New();
nameGenerator->SetSeriesFormat( seriesFormat );
nameGenerator->SetStartIndex( startIndex );
nameGenerator->SetEndIndex( endIndex );
std::vector< std::string > fileNames = nameGenerator->GetFileNames();
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileNames( fileNames );
try
{
reader->Update();
ImageType::ConstPointer output = reader->GetOutput();
const ImageType::RegionType largestRegion =
output->GetLargestPossibleRegion();
std::cout << "Initial LargestPossibleRegion: ";
std::cout << largestRegion << std::endl;;
}
catch( itk::ExceptionObject & error )
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
fileNames.pop_back();
try
{
std::cout << "\nTrying to call Update() "
<< "after shrinking the LargestPossibleRegion...\n" << std::endl;
reader->SetFileNames( fileNames );
reader->Update();
}
catch( itk::ExceptionObject & error )
{
// Print out the error that occurs
std::cout << "Error: " << error << std::endl;
}
try
{
std::cout << "Trying to call UpdateLargestPossibleRegion() "
<< "after shrinking the LargestPossibleRegion...\n" << std::endl;
reader->SetFileNames( fileNames );
reader->UpdateLargestPossibleRegion();
ImageType::ConstPointer output = reader->GetOutput();
const ImageType::RegionType largestRegion =
output->GetLargestPossibleRegion();
std::cout << "Shrunk LargestPossibleRegion: ";
std::cout << largestRegion << std::endl;;
}
catch( itk::ExceptionObject & error )
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}