itkDiscreteLevelSetImage.h

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/*=========================================================================
 *
 *  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 __itkDiscreteLevelSetImage_h
#define __itkDiscreteLevelSetImage_h

#include "itkLevelSetImage.h"

namespace itk
{
template< typename TOutput, unsigned int VDimension >
class DiscreteLevelSetImage :
  public LevelSetImage< Index< VDimension >, VDimension, TOutput >
{
public:
  typedef Index< VDimension >             IndexType;

  typedef DiscreteLevelSetImage                           Self;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;
  typedef LevelSetImage< IndexType, VDimension, TOutput > Superclass;

  itkTypeMacro ( DiscreteLevelSetImage, LevelSetImage );

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

  typedef typename Superclass::InputType        InputType;
  typedef typename Superclass::OutputType       OutputType;
  typedef typename Superclass::OutputRealType   OutputRealType;
  typedef typename Superclass::GradientType     GradientType;
  typedef typename Superclass::HessianType      HessianType;
  typedef typename Superclass::LevelSetDataType LevelSetDataType;

  virtual OutputType  Evaluate( const InputType& inputIndex ) const = 0;

  virtual GradientType EvaluateGradient( const InputType& inputIndex ) const;

  virtual HessianType EvaluateHessian( const InputType& inputIndex ) const;

  virtual OutputRealType EvaluateLaplacian( const InputType& inputIndex ) const;

  virtual OutputRealType EvaluateMeanCurvature( const InputType& inputIndex ) const;

  virtual GradientType EvaluateForwardGradient( const InputType& inputIndex ) const;

  virtual GradientType EvaluateBackwardGradient( const InputType& inputIndex ) const;

  virtual void Evaluate( const InputType& inputIndex, LevelSetDataType& data ) const;

  virtual void EvaluateGradient( const InputType& inputIndex, LevelSetDataType& data ) const;

  virtual void EvaluateHessian( const InputType& inputIndex, LevelSetDataType& data ) const;

  virtual void EvaluateMeanCurvature( const InputType& inputIndex, LevelSetDataType& data ) const;

  virtual void EvaluateLaplacian( const InputType& inputIndex, LevelSetDataType& data ) const;

  virtual void EvaluateForwardGradient( const InputType& inputIndex, LevelSetDataType& data ) const;

  virtual void EvaluateBackwardGradient( const InputType& inputIndex, LevelSetDataType& data ) const;

protected:
  DiscreteLevelSetImage();

  virtual ~DiscreteLevelSetImage();

  virtual void Initialize();

  virtual void CopyInformation(const DataObject *data);

  virtual void Graft( const DataObject* data );

private:

  DiscreteLevelSetImage( const Self& ); // purposely not implemented
  void operator = ( const Self& ); // purposely not implemented
  };
}

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkDiscreteLevelSetImage.hxx"
#endif

#endif // __itkDiscreteLevelSetImage_h