ITK  5.0.0
Insight Segmentation and Registration Toolkit
SphinxExamples/src/Core/Common/StreamAPipeline/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 != 2 )
{
std::cerr << "Usage: " << argv[0] << " <NumberOfSplits>" << std::endl;
return EXIT_FAILURE;
}
int numberOfSplits = atoi( argv[1] );
constexpr unsigned int Dimension = 2;
using PixelType = unsigned char;
SourceType::Pointer source = SourceType::New();
size.Fill( numberOfSplits );
source->SetSize( size );
MonitorFilterType::Pointer monitorFilter = MonitorFilterType::New();
monitorFilter->SetInput( source->GetOutput() );
// If ITK was built with the Debug CMake configuration, the filter
// automatically outputs status information to the console
monitorFilter->DebugOn();
StreamingFilterType::Pointer streamingFilter = StreamingFilterType::New();
streamingFilter->SetInput( monitorFilter->GetOutput() );
streamingFilter->SetNumberOfStreamDivisions( numberOfSplits );
try
{
streamingFilter->Update();
}
catch( itk::ExceptionObject & error )
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
std::cout << "The output LargestPossibleRegion is: "
<< streamingFilter->GetOutput()->GetLargestPossibleRegion() << std::endl;
std::cout << std::endl;
const MonitorFilterType::RegionVectorType updatedRequestedRegions =
monitorFilter->GetUpdatedRequestedRegions();
std::cout << "Updated RequestedRegions's:" << std::endl;
for(const auto & updatedRequestedRegion : updatedRequestedRegions)
{
std::cout << " " << updatedRequestedRegion << std::endl;
}
return EXIT_SUCCESS;
}