itkCompose3DVectorImageFilter.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 __itkCompose3DVectorImageFilter_h
#define __itkCompose3DVectorImageFilter_h

#include "itkTernaryFunctorImageFilter.h"
#include "itkVector.h"

namespace itk
{
namespace Functor
{
template< class TInput >
class Compose3DVector
{
public:
  typedef Vector< TInput, 3 > OutputType;
  Compose3DVector() {}
  ~Compose3DVector() {}
  bool operator!=(const Compose3DVector &) const
  {
    return false;
  }

  bool operator==(const Compose3DVector & other) const
  {
    return !( *this != other );
  }

  inline OutputType operator()(const TInput & s1,
                               const TInput & s2,
                               const TInput & s3) const
  {
    OutputType v;

    v[0] = s1;
    v[1] = s2;
    v[2] = s3;
    return v;
  }
};
}

template< typename TInputImage,
          typename TOutputImage =
            Image< Vector< typename TInputImage::PixelType, 3 >,
                   ::itk::GetImageDimension< TInputImage >::ImageDimension > >
class ITK_EXPORT Compose3DVectorImageFilter:
  public
  TernaryFunctorImageFilter< TInputImage, TInputImage,
                             TInputImage, TOutputImage,
                             Functor::Compose3DVector< typename TInputImage::PixelType >   >
{
public:
  typedef Compose3DVectorImageFilter Self;
  typedef TernaryFunctorImageFilter<
    TInputImage, TInputImage, TInputImage,
    TOutputImage,
    Functor::Compose3DVector<
      typename TInputImage::PixelType > > Superclass;

  typedef SmartPointer< Self >       Pointer;
  typedef SmartPointer< const Self > ConstPointer;

  typedef typename Superclass::OutputImageType OutputImageType;

  itkNewMacro(Self);

  itkTypeMacro(Compose3DVectorImageFilter,
               TernaryFunctorImageFilter);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( InputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< typename TInputImage::PixelType > ) );

#endif
protected:
  Compose3DVectorImageFilter() {}
  virtual ~Compose3DVectorImageFilter() {}
private:
  Compose3DVectorImageFilter(const Self &); //purposely not implemented
  void operator=(const Self &);             //purposely not implemented
};
} // end namespace itk

#endif