itkLevelSetSparseImageBase.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 __itkLevelSetSparseImageBase_h
#define __itkLevelSetSparseImageBase_h

#include "itkDiscreteLevelSetImageBase.h"
#include "itkObjectFactory.h"

#include "itkLabelObject.h"
#include "itkLabelMap.h"

namespace itk
{
template< typename TOutput, unsigned int VDimension >
class LevelSetSparseImageBase :
  public DiscreteLevelSetImageBase< TOutput, VDimension >
{
public:
  typedef LevelSetSparseImageBase                           Self;
  typedef SmartPointer< Self >                              Pointer;
  typedef SmartPointer< const Self >                        ConstPointer;
  typedef DiscreteLevelSetImageBase< TOutput, VDimension >  Superclass;

  itkTypeMacro ( LevelSetSparseImageBase, DiscreteLevelSetImageBase );

  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;

  typedef int8_t                                  LayerIdType;
  typedef std::list< LayerIdType >                LayerIdListType;

  typedef LabelObject< LayerIdType, VDimension >  LabelObjectType;
  typedef typename LabelObjectType::Pointer       LabelObjectPointer;
  typedef typename LabelObjectType::LengthType    LabelObjectLengthType;
  typedef typename LabelObjectType::LineType      LabelObjectLineType;

  typedef LabelMap< LabelObjectType >         LabelMapType;
  typedef typename LabelMapType::Pointer      LabelMapPointer;
  typedef typename LabelMapType::RegionType   RegionType;

  typedef std::map< InputType, OutputType,
                    Functor::IndexLexicographicCompare< VDimension > >
                                                  LayerType;
  typedef typename LayerType::iterator            LayerIterator;
  typedef typename LayerType::const_iterator      LayerConstIterator;

  typedef std::map< LayerIdType, LayerType >      LayerMapType;
  typedef typename LayerMapType::iterator         LayerMapIterator;
  typedef typename LayerMapType::const_iterator   LayerMapConstIterator;

  virtual LayerIdType Status( const InputType& iP ) const;

  const LayerType& GetLayer( LayerIdType iVal ) const;

  LayerType& GetLayer( LayerIdType iVal );

  void SetLayer( LayerIdType iVal, const LayerType& iLayer );

  virtual void SetLabelMap( LabelMapType* iLabelMap );
  itkGetObjectMacro( LabelMap, LabelMapType );

  virtual void Graft( const DataObject* data );

  template< class TLabel >
  typename LabelObject< TLabel, VDimension >::Pointer GetAsLabelObject();

protected:
  LevelSetSparseImageBase();

  virtual ~LevelSetSparseImageBase();

  LayerMapType      m_Layers;
  LabelMapPointer   m_LabelMap;
  LayerIdListType   m_InternalLabelList;

  virtual void InitializeLayers() = 0;

  virtual void InitializeInternalLabelList() = 0;

  virtual bool IsInside( const InputType& iP ) const;

  virtual void Initialize();

  virtual void CopyInformation( const DataObject* data );

private:

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

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

#endif // __itkLevelSetSparseImageBase_h