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/*=========================================================================
*
* 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.
*
*=========================================================================*/
#include "itkLevelSetNeighborhoodExtractor.h"
#include "itkFastMarchingImageFilter.h"
int itkLevelSetNeighborhoodExtractorTest(int, char* [] )
{
const unsigned int ImageDimension = 2;
typedef float PixelType;
typedef itk::Image<PixelType,ImageDimension> ImageType;
// Create an input image using fastmarching
typedef itk::FastMarchingImageFilter<ImageType> SourceType;
SourceType::Pointer source = SourceType::New();
ImageType::SizeType size;
size.Fill( 17 );
source->SetOutputSize( size );
SourceType::NodeType node;
ImageType::IndexType index;
index.Fill( 8 );
node.SetIndex( index );
node.SetValue( -4.0 );
typedef SourceType::NodeContainer NodeContainerType;
NodeContainerType::Pointer container = NodeContainerType::New();
container->InsertElement( 0, node );
source->SetTrialPoints( container );
source->CollectPointsOn();
source->Update();
typedef itk::LevelSetNeighborhoodExtractor<ImageType> ExtractorType;
ExtractorType::Pointer extractor = ExtractorType::New();
extractor->SetInputLevelSet( source->GetOutput() );
extractor->SetLevelSetValue( 0.0 );
extractor->NarrowBandingOff();
extractor->Locate();
typedef NodeContainerType::ConstIterator Iterator;
Iterator iter;
Iterator iterEnd;
std::cout << "Inside Points" << std::endl;
iter = extractor->GetInsidePoints()->Begin();
iterEnd = extractor->GetInsidePoints()->End();
for(; iter != iterEnd; iter++ )
{
std::cout << iter.Value().GetIndex() << " ";
std::cout << iter.Value().GetValue() << std::endl;
}
std::cout << "Outside Points" << std::endl;
iter = extractor->GetOutsidePoints()->Begin();
iterEnd = extractor->GetOutsidePoints()->End();
for(; iter != iterEnd; iter++ )
{
std::cout << iter.Value().GetIndex() << " ";
std::cout << iter.Value().GetValue() << std::endl;
}
// exercise Print
extractor->Print( std::cout );
// exercise Get methods
std::cout << "InputLevelSet: " << extractor->GetInputLevelSet() << std::endl;
std::cout << "LevelSetValue: " << extractor->GetLevelSetValue() << std::endl;
std::cout << "NarrowBandwidth: " << extractor->GetNarrowBandwidth() << std::endl;
std::cout << "NarrowBanding: " << extractor->GetNarrowBanding() << std::endl;
std::cout << "InputNarrowBand: " << extractor->GetInputNarrowBand() << std::endl;
// exercise error handling
bool passed;
std::cout << "Testing ITK_NULLPTR inputs" << std::endl;
try
{
passed = false;
extractor->SetInputLevelSet( ITK_NULLPTR );
extractor->Locate();
}
catch( itk::ExceptionObject& err )
{
std::cout << err << std::endl;
passed = true;
extractor->SetInputLevelSet( source->GetOutput() );
}
if ( !passed )
{
std::cout << "Test failed" << std::endl;
return EXIT_FAILURE;
}
try
{
passed = false;
extractor->NarrowBandingOn();
extractor->SetInputNarrowBand( ITK_NULLPTR );
extractor->Locate();
}
catch( itk::ExceptionObject& err )
{
std::cout << err << std::endl;
passed = true;
extractor->NarrowBandingOff();
}
if ( !passed )
{
std::cout << "Test failed" << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test passed." << std::endl;
return EXIT_SUCCESS;
}
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