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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 itkConstantBoundaryCondition_hxx
#define itkConstantBoundaryCondition_hxx
#include "itkConstantBoundaryCondition.h"
namespace itk
{
template< typename TInputImage, typename TOutputImage >
ConstantBoundaryCondition< TInputImage, TOutputImage >
::ConstantBoundaryCondition()
{
OutputPixelType p;
m_Constant = NumericTraits< OutputPixelType >::ZeroValue( p );
}
template< typename TInputImage, typename TOutputImage >
typename ConstantBoundaryCondition< TInputImage, TOutputImage >::OutputPixelType
ConstantBoundaryCondition< TInputImage, TOutputImage >
::operator()(const OffsetType &, const OffsetType &, const NeighborhoodType *) const
{
return m_Constant;
}
template< typename TInputImage, typename TOutputImage >
typename ConstantBoundaryCondition< TInputImage, TOutputImage >::OutputPixelType
ConstantBoundaryCondition< TInputImage, TOutputImage >
::operator()(const OffsetType &, const OffsetType &, const NeighborhoodType *,
const NeighborhoodAccessorFunctorType &) const
{
return m_Constant;
}
template< typename TInputImage, typename TOutputImage >
void
ConstantBoundaryCondition< TInputImage, TOutputImage >
::SetConstant(const OutputPixelType & c)
{
m_Constant = c;
}
template< typename TInputImage, typename TOutputImage >
const typename ConstantBoundaryCondition< TInputImage, TOutputImage >::OutputPixelType &
ConstantBoundaryCondition< TInputImage, TOutputImage >
::GetConstant() const
{
return m_Constant;
}
template< typename TInputImage, typename TOutputImage >
typename ConstantBoundaryCondition< TInputImage, TOutputImage >::RegionType
ConstantBoundaryCondition< TInputImage, TOutputImage >
:: GetInputRequestedRegion( const RegionType & inputLargestPossibleRegion,
const RegionType & outputRequestedRegion ) const
{
RegionType inputRequestedRegion( inputLargestPossibleRegion );
bool cropped = inputRequestedRegion.Crop( outputRequestedRegion );
if ( !cropped )
{
IndexType index; index.Fill( 0 );
SizeType size; size.Fill( 0 );
inputRequestedRegion.SetIndex( index );
inputRequestedRegion.SetSize( size );
}
return inputRequestedRegion;
}
template< typename TInputImage, typename TOutputImage >
typename ConstantBoundaryCondition< TInputImage, TOutputImage >::OutputPixelType
ConstantBoundaryCondition< TInputImage, TOutputImage >
::GetPixel( const IndexType & index, const TInputImage * image ) const
{
RegionType imageRegion = image->GetLargestPossibleRegion();
if ( imageRegion.IsInside( index ) )
{
return static_cast< OutputPixelType >( image->GetPixel( index ) );
}
return m_Constant;
}
template< typename TInputImage, typename TOutputImage >
void
ConstantBoundaryCondition< TInputImage, TOutputImage >
::Print( std::ostream & os, Indent i ) const
{
this->Superclass::Print( os, i );
os << i.GetNextIndent() << "Constant: " << m_Constant << std::endl;
}
} // namespace itk
#endif
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