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itkInterpolateImageFunction.h

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00001 /*========================================================================= 00002 00003 Program: Insight Segmentation & Registration Toolkit 00004 Module: $RCSfile: itkInterpolateImageFunction.h,v $ 00005 Language: C++ 00006 Date: $Date: 2003/09/10 14:29:13 $ 00007 Version: $Revision: 1.15 $ 00008 00009 Copyright (c) Insight Software Consortium. All rights reserved. 00010 See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. 00011 00012 This software is distributed WITHOUT ANY WARRANTY; without even 00013 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00014 PURPOSE. See the above copyright notices for more information. 00015 00016 =========================================================================*/ 00017 #ifndef _itkInterpolateImageFunction_h 00018 #define _itkInterpolateImageFunction_h 00019 00020 #include "itkImageFunction.h" 00021 00022 namespace itk 00023 { 00024 00041 template <class TInputImage, class TCoordRep = float> 00042 class ITK_EXPORT InterpolateImageFunction : 00043 public ImageFunction< TInputImage, 00044 ITK_TYPENAME NumericTraits<typename TInputImage::PixelType>::RealType, TCoordRep > 00045 { 00046 public: 00048 typedef InterpolateImageFunction Self; 00049 typedef ImageFunction<TInputImage,double,TCoordRep> Superclass; 00050 typedef SmartPointer<Self> Pointer; 00051 typedef SmartPointer<const Self> ConstPointer; 00052 00054 itkTypeMacro(InterpolateImageFunction, ImageFunction); 00055 00057 typedef typename Superclass::OutputType OutputType; 00058 00060 typedef typename Superclass::InputImageType InputImageType; 00061 00063 itkStaticConstMacro(ImageDimension, unsigned int, 00064 Superclass::ImageDimension); 00065 00067 typedef typename Superclass::PointType PointType; 00068 00070 typedef typename Superclass::IndexType IndexType; 00071 00073 typedef typename Superclass::ContinuousIndexType ContinuousIndexType; 00074 00076 typedef typename NumericTraits<typename TInputImage::PixelType>::RealType RealType; 00077 00086 virtual OutputType Evaluate( const PointType& point ) const 00087 { 00088 ContinuousIndexType index; 00089 m_Image->TransformPhysicalPointToContinuousIndex( point, index ); 00090 return ( this->EvaluateAtContinuousIndex( index ) ); 00091 } 00092 00103 virtual OutputType EvaluateAtContinuousIndex( 00104 const ContinuousIndexType & index ) const = 0; 00105 00114 virtual OutputType EvaluateAtIndex( const IndexType & index ) const 00115 { 00116 return ( static_cast<RealType>( m_Image->GetPixel( index ) ) ); 00117 } 00118 00119 protected: 00120 InterpolateImageFunction(){}; 00121 ~InterpolateImageFunction(){}; 00122 void PrintSelf(std::ostream& os, Indent indent) const 00123 { Superclass::PrintSelf( os, indent ); } 00124 00125 private: 00126 InterpolateImageFunction( const Self& ); //purposely not implemented 00127 void operator=( const Self& ); //purposely not implemented 00128 00129 }; 00130 00131 } // namespace itk 00132 00133 #endif

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