text: /*=========================================================================
   *
   *  Copyright Insight Software Consortium
   *
   *  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 itkBinaryMinMaxCurvatureFlowImageFilter_hxx
  #define itkBinaryMinMaxCurvatureFlowImageFilter_hxx
  #include "itkBinaryMinMaxCurvatureFlowImageFilter.h"
  
  #include "itkMacro.h"
  
  namespace itk
  {
  /**
   * Constructor
   */
  template< typename TInputImage, typename TOutputImage >
  BinaryMinMaxCurvatureFlowImageFilter< TInputImage, TOutputImage >
  ::BinaryMinMaxCurvatureFlowImageFilter()
  {
    m_Threshold = 0.0;
  
    typename BinaryMinMaxCurvatureFlowFunctionType::Pointer cffp;
    cffp = BinaryMinMaxCurvatureFlowFunctionType::New();
  
    this->SetDifferenceFunction( static_cast< FiniteDifferenceFunctionType * >(
                                   cffp.GetPointer() ) );
  }
  
  /**
   * Standard PrintSelf method.
   */
  template< typename TInputImage, typename TOutputImage >
  void
  BinaryMinMaxCurvatureFlowImageFilter< TInputImage, TOutputImage >
  ::PrintSelf(std::ostream & os, Indent indent) const
  {
    Superclass::PrintSelf(os, indent);
    os << indent << "Threshold: " << m_Threshold << std::endl;
  }
  
  /**
   * Initialize the state of filter and equation before each iteration.
   */
  template< typename TInputImage, typename TOutputImage >
  void
  BinaryMinMaxCurvatureFlowImageFilter< TInputImage, TOutputImage >
  ::InitializeIteration()
  {
    // update variables in the equation object
  
    auto * f = dynamic_cast< BinaryMinMaxCurvatureFlowFunctionType * > ( this->GetDifferenceFunction().GetPointer() );
  
    if ( !f )
      {
      itkExceptionMacro(<< "DifferenceFunction not of type BinaryMinMaxCurvatureFlowFunction");
      }
  
    f->SetThreshold(m_Threshold);
  
    this->Superclass::InitializeIteration();
  }
  } // end namespace itk
  
  #endif
  