ITK  4.3.0
Insight Segmentation and Registration Toolkit
itkVectorNearestNeighborInterpolateImageFunction.h
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1 /*=========================================================================
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3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
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14  * See the License for the specific language governing permissions and
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17  *=========================================================================*/
18 #ifndef __itkVectorNearestNeighborInterpolateImageFunction_h
19 #define __itkVectorNearestNeighborInterpolateImageFunction_h
20 
22 
23 namespace itk
24 {
42 template< class TInputImage, class TCoordRep = double >
44  public VectorInterpolateImageFunction< TInputImage, TCoordRep >
45 {
46 public:
47 
53 
55  itkNewMacro(Self);
56 
60 
62  typedef typename Superclass::InputImageType InputImageType;
63  typedef typename Superclass::PixelType PixelType;
64  typedef typename Superclass::ValueType ValueType;
65  typedef typename Superclass::RealType RealType;
66 
68  itkStaticConstMacro(Dimension, unsigned int,
69  Superclass::Dimension);
70 
72  itkStaticConstMacro(ImageDimension, unsigned int, Superclass::ImageDimension);
73 
75  typedef typename Superclass::IndexType IndexType;
76 
78  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
79 
81  typedef typename Superclass::OutputType OutputType;
82 
91  virtual OutputType EvaluateAtContinuousIndex(
92  const ContinuousIndexType & index) const
93  {
94  IndexType nindex;
95 
96  this->ConvertContinuousIndexToNearestIndex(index, nindex);
97  return static_cast< OutputType >( this->GetInputImage()->GetPixel(nindex) );
98  }
99 
100 protected:
103  void PrintSelf(std::ostream & os, Indent indent) const
104  { Superclass::PrintSelf(os, indent); }
105 
106 private:
107  VectorNearestNeighborInterpolateImageFunction(const Self &); //purposely not
108  // implemented
109  void operator=(const Self &); //purposely not
110  // implemented
111 };
112 } // end namespace itk
113 
114 #endif
115