ITK
4.1.0
Insight Segmentation and Registration Toolkit
|
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 __itkInterpolateImageFunction_h 00019 #define __itkInterpolateImageFunction_h 00020 00021 #include "itkImageFunction.h" 00022 00023 namespace itk 00024 { 00043 template< class TInputImage, class TCoordRep = double > 00044 class ITK_EXPORT InterpolateImageFunction: 00045 public ImageFunction< TInputImage, 00046 typename NumericTraits< typename TInputImage::PixelType >::RealType, TCoordRep > 00047 { 00048 public: 00050 typedef InterpolateImageFunction Self; 00051 typedef ImageFunction< TInputImage, 00052 typename NumericTraits< typename TInputImage::PixelType >::RealType, 00053 TCoordRep > Superclass; 00054 00055 typedef SmartPointer< Self > Pointer; 00056 typedef SmartPointer< const Self > ConstPointer; 00057 00059 itkTypeMacro(InterpolateImageFunction, ImageFunction); 00060 00062 typedef typename Superclass::OutputType OutputType; 00063 00065 typedef typename Superclass::InputImageType InputImageType; 00066 00068 itkStaticConstMacro(ImageDimension, unsigned int, 00069 Superclass::ImageDimension); 00070 00072 typedef typename Superclass::PointType PointType; 00073 00075 typedef typename Superclass::IndexType IndexType; 00076 typedef typename Superclass::IndexValueType IndexValueType; 00077 00079 typedef typename Superclass::ContinuousIndexType ContinuousIndexType; 00080 00082 typedef typename NumericTraits< typename TInputImage::PixelType >::RealType RealType; 00083 00092 virtual OutputType Evaluate(const PointType & point) const 00093 { 00094 ContinuousIndexType index; 00095 00096 this->GetInputImage()->TransformPhysicalPointToContinuousIndex(point, index); 00097 return ( this->EvaluateAtContinuousIndex(index) ); 00098 } 00099 00110 virtual OutputType EvaluateAtContinuousIndex( 00111 const ContinuousIndexType & index) const = 0; 00112 00121 virtual OutputType EvaluateAtIndex(const IndexType & index) const 00122 { 00123 return ( static_cast< RealType >( this->GetInputImage()->GetPixel(index) ) ); 00124 } 00125 00126 protected: 00127 InterpolateImageFunction(){} 00128 ~InterpolateImageFunction(){} 00129 void PrintSelf(std::ostream & os, Indent indent) const 00130 { Superclass::PrintSelf(os, indent); } 00131 private: 00132 InterpolateImageFunction(const Self &); //purposely not implemented 00133 void operator=(const Self &); //purposely not implemented 00134 }; 00135 } // end namespace itk 00136 00137 #endif 00138