ITK
4.1.0
Insight Segmentation and Registration Toolkit
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00001 /*========================================================================= 00002 * 00003 * Copyright Insight Software Consortium 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); 00006 * you may not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0.txt 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 * 00017 *=========================================================================*/ 00018 #ifndef __itkExtrapolateImageFunction_h 00019 #define __itkExtrapolateImageFunction_h 00020 00021 #include "itkImageFunction.h" 00022 00023 namespace itk 00024 { 00042 template< class TInputImage, class TCoordRep = float > 00043 class ITK_EXPORT ExtrapolateImageFunction: 00044 public ImageFunction< TInputImage, 00045 typename NumericTraits< typename TInputImage::PixelType >::RealType, TCoordRep > 00046 { 00047 public: 00049 typedef ExtrapolateImageFunction Self; 00050 typedef ImageFunction< TInputImage, 00051 typename NumericTraits< typename TInputImage::PixelType >::RealType, 00052 TCoordRep > Superclass; 00053 typedef SmartPointer< Self > Pointer; 00054 typedef SmartPointer< const Self > ConstPointer; 00055 00057 itkTypeMacro(ExtrapolateImageFunction, ImageFunction); 00058 00060 typedef typename Superclass::OutputType OutputType; 00061 00063 typedef typename Superclass::InputImageType InputImageType; 00064 00066 itkStaticConstMacro(ImageDimension, unsigned int, 00067 Superclass::ImageDimension); 00068 00070 typedef typename Superclass::PointType PointType; 00071 00073 typedef typename Superclass::IndexType IndexType; 00074 00076 typedef typename Superclass::ContinuousIndexType ContinuousIndexType; 00077 00079 typedef typename NumericTraits< typename TInputImage::PixelType >::RealType RealType; 00080 00086 virtual OutputType Evaluate(const PointType & point) const 00087 { 00088 ContinuousIndexType index; 00089 00090 this->GetInputImage()->TransformPhysicalPointToContinuousIndex(point, index); 00091 return ( this->EvaluateAtContinuousIndex(index) ); 00092 } 00093 00099 virtual OutputType EvaluateAtContinuousIndex( 00100 const ContinuousIndexType & index) const = 0; 00101 00107 virtual OutputType EvaluateAtIndex( 00108 const IndexType & index) const = 0; 00109 00110 protected: 00111 ExtrapolateImageFunction(){} 00112 ~ExtrapolateImageFunction(){} 00113 void PrintSelf(std::ostream & os, Indent indent) const 00114 { Superclass::PrintSelf(os, indent); } 00115 private: 00116 ExtrapolateImageFunction(const Self &); //purposely not implemented 00117 void operator=(const Self &); //purposely not implemented 00118 }; 00119 } // end namespace itk 00120 00121 #endif 00122