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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkAcosImageAdaptor.h
Language: C++
Date: $Date$
Version: $Revision$
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 __itkAcosImageAdaptor_h
#define __itkAcosImageAdaptor_h
#include <itkImageAdaptor.h>
#include "vnl/vnl_math.h"
namespace itk
{
namespace Accessor {
/** \class AcosPixelAccessor
* \brief Give access to the vcl_acos() function of a value
*
* AcosPixelAccessor is templated over an internal type and an
* external type representation. This class cast the input
* applies the function to it and cast the result according
* to the types defined as template parameters
*
* \ingroup ImageAdaptors */
template <class TInternalType, class TExternalType >
class ITK_EXPORT AcosPixelAccessor
{
public:
/** External typedef. It defines the external aspect
* that this class will exhibit. */
typedef TExternalType ExternalType;
/** Internal typedef. It defines the internal real
* representation of data. */
typedef TInternalType InternalType;
static inline void Set(TInternalType & output, const TExternalType & input)
{output = (TInternalType)vcl_acos((double)input);}
static inline TExternalType Get( const TInternalType & input )
{return (TExternalType)vcl_acos((double)input);}
};
} // end namespace Accessor
/** \class AcosImageAdaptor
* \brief Presents an image as being composed of the vcl_acos() of its pixels
*
* Additional casting is performed according to the input and output image
* types following C++ default casting rules.
*
* \ingroup ImageAdaptors */
template <class TImage, class TOutputPixelType>
class ITK_EXPORT AcosImageAdaptor : public
ImageAdaptor<TImage,Accessor::AcosPixelAccessor<
typename TImage::PixelType,
TOutputPixelType> >
{
public:
/** Standard class typedefs. */
typedef AcosImageAdaptor Self;
typedef ImageAdaptor<TImage,Accessor::AcosPixelAccessor<
typename TImage::PixelType,
TOutputPixelType> > 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( AcosImageAdaptor, ImageAdaptor );
protected:
AcosImageAdaptor() {}
virtual ~AcosImageAdaptor() {}
private:
AcosImageAdaptor(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace itk
#endif
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