itkChangeInformationImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkChangeInformationImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2002/09/11 19:39:01 $
  Version:   $Revision: 1.5 $

  Copyright (c) 2002 Insight 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 __itkChangeInformationImageFilter_h
#define __itkChangeInformationImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkFixedArray.h"

namespace itk
{

template <class TInputImage>
class ITK_EXPORT ChangeInformationImageFilter:
    public ImageToImageFilter<TInputImage,TInputImage>
{
public:
  typedef ChangeInformationImageFilter         Self;
  typedef ImageToImageFilter<TInputImage,TInputImage>  Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);  

  typedef typename TInputImage::RegionType OutputImageRegionType;
  typedef typename TInputImage::RegionType InputImageRegionType;

  typedef typename TInputImage::Pointer InputImagePointer;

  typedef typename TInputImage::PixelType OutputImagePixelType;
  typedef typename TInputImage::PixelType InputImagePixelType;

  typedef typename TInputImage::IndexType OutputImageIndexType;
  typedef typename TInputImage::IndexType InputImageIndexType;
  typedef typename TInputImage::SizeType OutputImageSizeType;
  typedef typename TInputImage::SizeType InputImageSizeType;
  typedef typename TInputImage::OffsetType OutputImageOffsetType;
  typedef typename TInputImage::OffsetType InputImageOffsetType;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage::ImageDimension);

  typedef FixedArray<double, itkGetStaticConstMacro(ImageDimension)> ArrayType;

  itkTypeMacro(ChangeInformationImageFilter, ImageToImageFilter);

  void SetReferenceImage (TInputImage *image)
    {
    if (image != m_ReferenceImage)
      {
      m_ReferenceImage = image;
      this->ProcessObject::SetNthInput(1, image);
      this->Modified();
      }
    }
  itkGetObjectMacro(ReferenceImage, TInputImage);

  itkSetMacro(UseReferenceImage, bool);
  itkBooleanMacro(UseReferenceImage);
  itkGetMacro(UseReferenceImage, bool);

  itkSetMacro(OutputSpacing, ArrayType);
  itkGetMacro(OutputSpacing, const ArrayType);

  itkSetMacro(OutputOrigin, ArrayType);
  itkGetMacro(OutputOrigin, const ArrayType);

  itkSetVectorMacro(OutputOffset, long, ImageDimension);
  itkGetVectorMacro(OutputOffset, const long, ImageDimension);

  void ChangeAll()
    {
    this->ChangeSpacingOn();
    this->ChangeOriginOn();
    this->ChangeRegionOn();
    }

  void ChangeNone()
    {
    this->ChangeSpacingOff();
    this->ChangeOriginOff();
    this->ChangeRegionOff();
    }

  itkSetMacro(ChangeSpacing, bool);
  itkBooleanMacro(ChangeSpacing);
  itkGetMacro(ChangeSpacing, bool);

  itkSetMacro(ChangeOrigin, bool);
  itkBooleanMacro(ChangeOrigin);
  itkGetMacro(ChangeOrigin, bool);

  itkSetMacro(ChangeRegion, bool);
  itkBooleanMacro(ChangeRegion);
  itkGetMacro(ChangeRegion, bool);

  itkSetMacro(CenterImage, bool);
  itkBooleanMacro(CenterImage);
  itkGetMacro(CenterImage, bool);

  virtual void GenerateOutputInformation();

  virtual void GenerateInputRequestedRegion();

  void GenerateData();

 protected:
  ChangeInformationImageFilter();
  ~ChangeInformationImageFilter() {};
  void PrintSelf(std::ostream& os, Indent indent) const;

private:
  ChangeInformationImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  InputImagePointer m_ReferenceImage;

  bool m_CenterImage;
  bool m_ChangeSpacing;
  bool m_ChangeOrigin;
  bool m_ChangeRegion;
  bool m_UseReferenceImage;
  
  ArrayType m_OutputSpacing;
  ArrayType m_OutputOrigin;

  long m_OutputOffset[ImageDimension];
  OutputImageOffsetType m_Shift;
};

  
} // end namespace itk
  
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkChangeInformationImageFilter.txx"
#endif
  
#endif

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