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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 itkLevelSetEquationCurvatureTerm_hxx
#define itkLevelSetEquationCurvatureTerm_hxx
namespace itk
{
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::LevelSetEquationCurvatureTerm()
{
for (unsigned int i = 0; i < ImageDimension; ++i)
{
this->m_NeighborhoodScales[i] = 1.0;
}
this->m_TermName = "Curvature term";
this->m_RequiredData.insert("MeanCurvature");
this->m_UseCurvatureImage = false;
}
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
void
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::SetCurvatureImage(
CurvatureImageType * iImage)
{
m_CurvatureImage = iImage;
m_UseCurvatureImage = true;
this->Modified();
}
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
auto
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::Value(const LevelSetInputIndexType & iP,
const LevelSetDataType & iData)
-> LevelSetOutputRealType
{
// MeanCurvature has should be computed by this point.
itkAssertInDebugAndIgnoreInReleaseMacro(iData.MeanCurvature.m_Computed);
if (!m_UseCurvatureImage)
{
return iData.MeanCurvature.m_Value;
}
else
{
return m_CurvatureImage->GetPixel(iP) * iData.MeanCurvature.m_Value;
}
}
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
void
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::InitializeParameters()
{
this->SetUp();
if (m_UseCurvatureImage)
{
if (m_CurvatureImage.IsNull())
{
itkGenericExceptionMacro("m_UseCurvatureImage is true and m_CurvatureImage is null");
}
}
}
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
void
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::Initialize(const LevelSetInputIndexType &)
{}
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
void
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::Update()
{}
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
void
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::UpdatePixel(
const LevelSetInputIndexType & itkNotUsed(iP),
const LevelSetOutputRealType & itkNotUsed(oldValue),
const LevelSetOutputRealType & itkNotUsed(newValue))
{}
template <typename TInput, typename TLevelSetContainer, typename TCurvatureImage>
auto
LevelSetEquationCurvatureTerm<TInput, TLevelSetContainer, TCurvatureImage>::Value(const LevelSetInputIndexType & iP)
-> LevelSetOutputRealType
{
if (!m_UseCurvatureImage)
{
return this->m_CurrentLevelSetPointer->EvaluateMeanCurvature(iP);
}
else
{
return m_CurvatureImage->GetPixel(iP) * this->m_CurrentLevelSetPointer->EvaluateMeanCurvature(iP);
}
}
} // namespace itk
#endif
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