itkElasticBodyReciprocalSplineKernelTransform2.h

Go to the documentation of this file.

/*=========================================================================
 *
 *  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.
 *
 *=========================================================================*/
/*=========================================================================
 
  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkElasticBodyReciprocalSplineKernelTransform2.h,v $
  Date:      $Date: 2006/04/17 01:50:19 $
  Version:   $Revision: 1.8 $
 
  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.
 
=========================================================================*/
#ifndef itkElasticBodyReciprocalSplineKernelTransform2_h
#define itkElasticBodyReciprocalSplineKernelTransform2_h
 
#include "itkKernelTransform2.h"
 
namespace itk
{

template <class TScalarType = double, // Data type for scalars (float or double)
          unsigned int NDimensions = 3>
// Number of dimensions
class ITK_TEMPLATE_EXPORT ElasticBodyReciprocalSplineKernelTransform2
  : public KernelTransform2<TScalarType, NDimensions>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(ElasticBodyReciprocalSplineKernelTransform2);

  using Self = ElasticBodyReciprocalSplineKernelTransform2;
  using Superclass = KernelTransform2<TScalarType, NDimensions>;
 
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkTypeMacro(ElasticBodyReciprocalSplineKernelTransform2, KernelTransform2);

  itkNewMacro(Self);

  using typename Superclass::ScalarType;

  using typename Superclass::ParametersType;

  using typename Superclass::JacobianType;

  itkStaticConstMacro(SpaceDimension, unsigned int, Superclass::SpaceDimension);

  // itkSetMacro( Alpha, TScalarType ); Cant use the macro because the matrices must be recomputed
  void
  SetAlpha(TScalarType Alpha) override
  {
    this->m_Alpha = Alpha;
    this->m_LMatrixComputed = false;
    this->m_LInverseComputed = false;
    this->m_WMatrixComputed = false;
  }
 

  itkGetConstMacro(Alpha, TScalarType);

  void
  SetPoissonRatio(const TScalarType Nu) override
  {
    if (Nu > -1.0 && Nu < 0.5)
    {
      this->SetAlpha(8.0 * (1.0 - Nu) - 1.0);
    }
  }
 
 
  const TScalarType
  GetPoissonRatio() const override
  {
    return 1.0 - (this->m_Alpha + 1.0) / 8.0;
  }
 

  using typename Superclass::InputPointType;
  using typename Superclass::OutputPointType;
  using typename Superclass::InputVectorType;
  using typename Superclass::OutputVectorType;
  using typename Superclass::InputCovariantVectorType;
  using typename Superclass::OutputCovariantVectorType;
 
protected:
  ElasticBodyReciprocalSplineKernelTransform2();
  ~ElasticBodyReciprocalSplineKernelTransform2() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;

  using typename Superclass::GMatrixType;

  void
  ComputeG(const InputVectorType & x, GMatrixType & GMatrix) const override;

  TScalarType m_Alpha{};
};
 
} // namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkElasticBodyReciprocalSplineKernelTransform2.hxx"
#endif
 
#endif // itkElasticBodyReciprocalSplineKernelTransform2_h