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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkVectorLinearInterpolateImageFunction.h,v $
Language: C++
Date: $Date: 2007-01-30 20:56:09 $
Version: $Revision: 1.14 $
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 __itkVectorLinearInterpolateImageFunction_h
#define __itkVectorLinearInterpolateImageFunction_h
#include "itkVectorInterpolateImageFunction.h"
namespace itk
{
/**
* \class VectorLinearInterpolateImageFunction
* \brief Linearly interpolate a vector image at specified positions.
*
* VectorLinearInterpolateImageFunction linearly interpolates a vector
* image intensity non-integer pixel position. This class is templated
* over the input image type and the coordinate representation type.
*
* This function works for N-dimensional images.
*
* \warning This function work only for Vector images. For
* scalar images use LinearInterpolateImageFunction.
*
* \ingroup ImageFunctions ImageInterpolators
*
*/
template <class TInputImage, class TCoordRep = float>
class ITK_EXPORT VectorLinearInterpolateImageFunction :
public VectorInterpolateImageFunction<TInputImage,TCoordRep>
{
public:
/** Standard class typedefs. */
typedef VectorLinearInterpolateImageFunction Self;
typedef VectorInterpolateImageFunction<TInputImage,TCoordRep> 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(VectorLinearInterpolateImageFunction,
VectorInterpolateImageFunction);
/** InputImageType typedef support. */
typedef typename Superclass::InputImageType InputImageType;
typedef typename Superclass::PixelType PixelType;
typedef typename Superclass::ValueType ValueType;
typedef typename Superclass::RealType RealType;
/** Grab the vector dimension from the superclass. */
itkStaticConstMacro(Dimension, unsigned int,
Superclass::Dimension);
/** Dimension underlying input image. */
itkStaticConstMacro(ImageDimension, unsigned int,Superclass::ImageDimension);
/** Index typedef support. */
typedef typename Superclass::IndexType IndexType;
/** ContinuousIndex typedef support. */
typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
/** Output type is Vector<double,Dimension> */
typedef typename Superclass::OutputType OutputType;
/** Evaluate the function at a ContinuousIndex position
*
* Returns the linearly interpolated image intensity at a
* specified point position. No bounds checking is done.
* The point is assume to lie within the image buffer.
*
* ImageFunction::IsInsideBuffer() can be used to check bounds before
* calling the method. */
virtual OutputType EvaluateAtContinuousIndex(
const ContinuousIndexType & index ) const;
protected:
VectorLinearInterpolateImageFunction();
~VectorLinearInterpolateImageFunction(){};
void PrintSelf(std::ostream& os, Indent indent) const;
private:
VectorLinearInterpolateImageFunction(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
/** Number of neighbors used in the interpolation */
static const unsigned long m_Neighbors;
};
} // end namespace itk
// Define instantiation macro for this template.
#define ITK_TEMPLATE_VectorLinearInterpolateImageFunction(_, EXPORT, x, y) namespace itk { \
_(2(class EXPORT VectorLinearInterpolateImageFunction< ITK_TEMPLATE_2 x >)) \
namespace Templates { typedef VectorLinearInterpolateImageFunction< ITK_TEMPLATE_2 x > \
VectorLinearInterpolateImageFunction##y; } \
}
#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkVectorLinearInterpolateImageFunction+-.h"
#endif
#if ITK_TEMPLATE_TXX
# include "itkVectorLinearInterpolateImageFunction.txx"
#endif
#endif
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