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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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
namespace itk
{
template <typename TInputImage, typename TOutputImage>
auto
ConstantBoundaryCondition<TInputImage, TOutputImage>::operator()(const OffsetType &,
const OffsetType &,
const NeighborhoodType *) const -> OutputPixelType
{
return m_Constant;
}
template <typename TInputImage, typename TOutputImage>
auto
ConstantBoundaryCondition<TInputImage, TOutputImage>::operator()(const OffsetType &,
const OffsetType &,
const NeighborhoodType *,
const NeighborhoodAccessorFunctorType &) const
-> OutputPixelType
{
return m_Constant;
}
template <typename TInputImage, typename TOutputImage>
void
ConstantBoundaryCondition<TInputImage, TOutputImage>::SetConstant(const OutputPixelType & c)
{
m_Constant = c;
}
template <typename TInputImage, typename TOutputImage>
auto
ConstantBoundaryCondition<TInputImage, TOutputImage>::GetConstant() const -> const OutputPixelType &
{
return m_Constant;
}
template <typename TInputImage, typename TOutputImage>
auto
ConstantBoundaryCondition<TInputImage, TOutputImage>::GetInputRequestedRegion(
const RegionType & inputLargestPossibleRegion,
const RegionType & outputRequestedRegion) const -> RegionType
{
RegionType inputRequestedRegion(inputLargestPossibleRegion);
bool cropped = inputRequestedRegion.Crop(outputRequestedRegion);
if (!cropped)
{
inputRequestedRegion.SetIndex({ { 0 } });
inputRequestedRegion.SetSize({ { 0 } });
}
return inputRequestedRegion;
}
template <typename TInputImage, typename TOutputImage>
auto
ConstantBoundaryCondition<TInputImage, TOutputImage>::GetPixel(const IndexType & index, const TInputImage * image) const
-> OutputPixelType
{
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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