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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.
*
*=========================================================================*/
#ifndef itkBinaryMaskToNarrowBandPointSetFilter_hxx
#define itkBinaryMaskToNarrowBandPointSetFilter_hxx
#include "itkBinaryMaskToNarrowBandPointSetFilter.h"
#include "itkNumericTraits.h"
#include "itkProgressReporter.h"
namespace itk
{
/**
*
*/
template< typename TInputImage, typename TOutputMesh >
BinaryMaskToNarrowBandPointSetFilter< TInputImage, TOutputMesh >
::BinaryMaskToNarrowBandPointSetFilter()
{
// Modify superclass default values, can be overridden by subclasses
this->SetNumberOfRequiredInputs(1);
m_BandWidth = 5;
m_DistanceFilter = DistanceFilterType::New();
m_RescaleFilter = RescaleFilterType::New();
m_RescaleFilter->SetOutputMinimum(-0.5);
m_RescaleFilter->SetOutputMaximum(0.5);
m_DistanceFilter->SetInput( m_RescaleFilter->GetOutput() );
m_DistanceFilter->NarrowBandingOn();
m_DistanceFilter->SetNarrowBandwidth(m_BandWidth);
PointDataContainerPointer pointData = PointDataContainer::New();
OutputMeshPointer mesh = this->GetOutput();
mesh->SetPointData( pointData.GetPointer() );
}
/**
*
*/
template< typename TInputImage, typename TOutputMesh >
BinaryMaskToNarrowBandPointSetFilter< TInputImage, TOutputMesh >
::~BinaryMaskToNarrowBandPointSetFilter()
{}
/**
*
*/
template< typename TInputImage, typename TOutputMesh >
void
BinaryMaskToNarrowBandPointSetFilter< TInputImage, TOutputMesh >
::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "BandWidth: " << m_BandWidth << std::endl;
}
/**
*
*/
template< typename TInputImage, typename TOutputMesh >
void
BinaryMaskToNarrowBandPointSetFilter< TInputImage, TOutputMesh >
::GenerateOutputInformation()
{}
/**
*
*/
template< typename TInputImage, typename TOutputMesh >
void
BinaryMaskToNarrowBandPointSetFilter< TInputImage, TOutputMesh >
::SetInput(const InputImageType *inputImage)
{
// This const_cast is needed due to the lack of
// const-correctness in the ProcessObject.
this->SetNthInput( 0,
const_cast< InputImageType * >( inputImage ) );
}
/**
*
*/
template< typename TInputImage, typename TOutputMesh >
void
BinaryMaskToNarrowBandPointSetFilter< TInputImage, TOutputMesh >
::GenerateData(void)
{
m_DistanceFilter->SetNarrowBandwidth(m_BandWidth);
m_RescaleFilter->SetInput( this->GetInput(0) );
m_DistanceFilter->Update();
OutputMeshPointer mesh = this->GetOutput();
InputImageConstPointer image = this->GetInput(0);
PointsContainerPointer points = PointsContainer::New();
PointDataContainerPointer pointData = PointDataContainer::New();
NodeContainerPointer nodes = m_DistanceFilter->GetOutputNarrowBand();
typename std::vector< NodeType >::size_type numberOfPixels = nodes->Size();
ProgressReporter progress(this, 0, static_cast<SizeValueType>( numberOfPixels ));
typename NodeContainer::ConstIterator nodeItr = nodes->Begin();
typename NodeContainer::ConstIterator lastNode = nodes->End();
PointType point;
while ( nodeItr != lastNode )
{
const NodeType & node = nodeItr.Value();
const float distance = node.GetValue();
if ( std::fabs(distance) < m_BandWidth )
{
image->TransformIndexToPhysicalPoint(node.GetIndex(), point);
points->push_back(point);
pointData->push_back(distance);
}
++nodeItr;
progress.CompletedPixel();
}
mesh->SetPoints(points);
mesh->SetPointData(pointData);
// This indicates that the current BufferedRegion is equal to the
// requested region. This action prevents useless rexecutions of
// the pipeline.
mesh->SetBufferedRegion( mesh->GetRequestedRegion() );
}
} // end namespace itk
#endif
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