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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkPermuteAxesImageFilter.h,v $
Language: C++
Date: $Date: 2003-10-14 17:58:41 $
Version: $Revision: 1.6 $
Copyright (c) Insight Software 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 _itkPermuteAxesImageFilter_h
#define _itkPermuteAxesImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkFixedArray.h"
namespace itk
{
/** \class PermuteAxesImageFilter
* \brief Permutes the image axes according to a user specified order.
*
* PermuateAxesImageFilter permutes the image axes according to a
* user specified order. The permutation order is set via method
* SetOrder( order ) where the input is an array of ImageDimension
* number of unsigned int. The elements of the array must be a rearrangment
* of the numbers from 0 to ImageDimension - 1.
*
* The i-th axis of the output image corresponds with the order[i]-th
* axis of the input image.
*
* The output meta image information (LargestPossibleRegion, spacing, origin)
* is computed by permuting the corresponding input meta information.
*
* \ingroup GeometricTransforms
* \ingroup Multithreaded
* \ingroup Streamed
*/
template <class TImage>
class ITK_EXPORT PermuteAxesImageFilter :
public ImageToImageFilter<TImage,TImage>
{
public:
/** Standard class typedefs. */
typedef PermuteAxesImageFilter Self;
typedef ImageToImageFilter<TImage,TImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(PermuteAxesImageFilter, ImageToImageFilter);
/** ImageDimension enumeration */
itkStaticConstMacro(ImageDimension, unsigned int,
TImage::ImageDimension );
/** Inherited types */
typedef typename Superclass::InputImagePointer InputImagePointer;
typedef typename Superclass::OutputImagePointer OutputImagePointer;
typedef typename Superclass::OutputImageRegionType OutputImageRegionType;
/** PermuteOrderArray type. */
typedef FixedArray<unsigned int, itkGetStaticConstMacro(ImageDimension)> PermuteOrderArrayType;
/** Set the permutation order. The elements of order must be
* a rearrangement of the numbers from 0 to ImageDimension - 1.*/
void SetOrder( const PermuteOrderArrayType& order );
/** Get the permutation order. */
itkGetConstReferenceMacro( Order, PermuteOrderArrayType );
/** Get the inverse permutation order. */
itkGetConstReferenceMacro( InverseOrder, PermuteOrderArrayType );
/** PermuteAxesImageFilter produces an image which is a different
* resolution and with a different pixel spacing than its input
* image. As such, PermuteAxesImageFilter needs to provide an
* implementation for GenerateOutputInformation() in order to inform
* the pipeline execution model. The original documentation of this
* method is below.
* \sa ProcessObject::GenerateOutputInformaton() */
virtual void GenerateOutputInformation();
/** PermuteAxesImageFilter needs different input requested region than the output
* requested region. As such, PermuteAxesImageFilter needs to provide an
* implementation for GenerateInputRequestedRegion() in order to inform the
* pipeline execution model.
* \sa ProcessObject::GenerateInputRequestedRegion() */
virtual void GenerateInputRequestedRegion();
protected:
PermuteAxesImageFilter();
~PermuteAxesImageFilter() {};
void PrintSelf(std::ostream& os, Indent indent) const;
/** PermuteAxesImageFilter can be implemented as a multithreaded filter.
* Therefore, this implementation provides a ThreadedGenerateData() routine
* which is called for each processing thread. The output image data is
* allocated automatically by the superclass prior to calling
* ThreadedGenerateData(). ThreadedGenerateData can only write to the
* portion of the output image specified by the parameter
* "outputRegionForThread"
*
* \sa ImageToImageFilter::ThreadedGenerateData(),
* ImageToImageFilter::GenerateData() */
void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
int threadId );
private:
PermuteAxesImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
PermuteOrderArrayType m_Order;
PermuteOrderArrayType m_InverseOrder;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkPermuteAxesImageFilter.txx"
#endif
#endif
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