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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 itkImageFunction_hxx
#define itkImageFunction_hxx
namespace itk
{
template <typename TInputImage, typename TOutput, typename TCoordRep>
ImageFunction<TInputImage, TOutput, TCoordRep>::ImageFunction()
{
m_Image = nullptr;
m_StartIndex.Fill(0);
m_EndIndex.Fill(0);
m_StartContinuousIndex.Fill(0.0f);
m_EndContinuousIndex.Fill(0.0f);
}
template <typename TInputImage, typename TOutput, typename TCoordRep>
void
ImageFunction<TInputImage, TOutput, TCoordRep>::PrintSelf(std::ostream & os, Indent indent) const
{
this->Superclass::PrintSelf(os, indent);
os << indent << "InputImage: " << m_Image.GetPointer() << std::endl;
os << indent << "StartIndex: " << m_StartIndex << std::endl;
os << indent << "EndIndex: " << m_EndIndex << std::endl;
os << indent << "StartContinuousIndex: " << m_StartContinuousIndex << std::endl;
os << indent << "EndContinuousIndex: " << m_EndContinuousIndex << std::endl;
}
template <typename TInputImage, typename TOutput, typename TCoordRep>
void
ImageFunction<TInputImage, TOutput, TCoordRep>::SetInputImage(const InputImageType * ptr)
{
// set the input image
m_Image = ptr;
if (ptr)
{
typename InputImageType::SizeType size = ptr->GetBufferedRegion().GetSize();
m_StartIndex = ptr->GetBufferedRegion().GetIndex();
for (unsigned int j = 0; j < ImageDimension; ++j)
{
m_EndIndex[j] = m_StartIndex[j] + static_cast<IndexValueType>(size[j]) - 1;
m_StartContinuousIndex[j] = static_cast<CoordRepType>(m_StartIndex[j] - 0.5);
m_EndContinuousIndex[j] = static_cast<CoordRepType>(m_EndIndex[j] + 0.5);
}
}
}
} // end namespace itk
#endif
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