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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 _itkDeformationFieldInterpolatingTransform_hxx
#define _itkDeformationFieldInterpolatingTransform_hxx
#include "itkDeformationFieldInterpolatingTransform.h"
namespace itk
{
// Constructor with default arguments
template <class TScalarType, unsigned int NDimensions, class TComponentType>
DeformationFieldInterpolatingTransform<TScalarType, NDimensions, TComponentType>::
DeformationFieldInterpolatingTransform()
: Superclass(OutputSpaceDimension)
{
this->m_DeformationField = nullptr;
this->m_ZeroDeformationField = DeformationFieldType::New();
typename DeformationFieldType::SizeType dummySize;
dummySize.Fill(0);
this->m_ZeroDeformationField->SetRegions(dummySize);
this->SetIdentity();
} // end Constructor
// Transform a point
template <class TScalarType, unsigned int NDimensions, class TComponentType>
auto
DeformationFieldInterpolatingTransform<TScalarType, NDimensions, TComponentType>::TransformPoint(
const InputPointType & point) const -> OutputPointType
{
InputContinuousIndexType cindex;
this->m_DeformationFieldInterpolator->ConvertPointToContinuousIndex(point, cindex);
if (this->m_DeformationFieldInterpolator->IsInsideBuffer(cindex))
{
InterpolatorOutputType vec = this->m_DeformationFieldInterpolator->EvaluateAtContinuousIndex(cindex);
OutputPointType outpoint;
for (unsigned int i = 0; i < InputSpaceDimension; ++i)
{
outpoint[i] = point[i] + static_cast<ScalarType>(vec[i]);
}
return outpoint;
}
else
{
return point;
}
}
// Set the deformation field
template <class TScalarType, unsigned int NDimensions, class TComponentType>
void
DeformationFieldInterpolatingTransform<TScalarType, NDimensions, TComponentType>::SetDeformationField(
DeformationFieldType * _arg)
{
itkDebugMacro("setting DeformationField to " << _arg);
if (this->m_DeformationField != _arg)
{
this->m_DeformationField = _arg;
this->Modified();
}
if (this->m_DeformationFieldInterpolator.IsNotNull())
{
this->m_DeformationFieldInterpolator->SetInputImage(this->m_DeformationField);
}
}
// Set the deformation field interpolator
template <class TScalarType, unsigned int NDimensions, class TComponentType>
void
DeformationFieldInterpolatingTransform<TScalarType, NDimensions, TComponentType>::SetDeformationFieldInterpolator(
DeformationFieldInterpolatorType * _arg)
{
itkDebugMacro("setting DeformationFieldInterpolator to " << _arg);
if (this->m_DeformationFieldInterpolator != _arg)
{
this->m_DeformationFieldInterpolator = _arg;
this->Modified();
}
if (this->m_DeformationFieldInterpolator.IsNotNull())
{
this->m_DeformationFieldInterpolator->SetInputImage(this->m_DeformationField);
}
}
// Print self
template <class TScalarType, unsigned int NDimensions, class TComponentType>
void
DeformationFieldInterpolatingTransform<TScalarType, NDimensions, TComponentType>::PrintSelf(std::ostream & os,
Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "DeformationField: " << this->m_DeformationField << std::endl;
os << indent << "ZeroDeformationField: " << this->m_ZeroDeformationField << std::endl;
os << indent << "DeformationFieldInterpolator: " << this->m_DeformationFieldInterpolator << std::endl;
}
// Set the parameters for an Identity transform of this class
template <class TScalarType, unsigned int NDimensions, class TComponentType>
void
DeformationFieldInterpolatingTransform<TScalarType, NDimensions, TComponentType>::SetIdentity()
{
if (this->m_DeformationFieldInterpolator.IsNull())
{
this->m_DeformationFieldInterpolator = DefaultDeformationFieldInterpolatorType::New();
}
this->SetDeformationField(this->m_ZeroDeformationField);
} // end SetIdentity()
} // end namespace itk
#endif
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