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itkIdentityTransferFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkIdentityTransferFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-01-24 21:33:49 $
00007   Version:   $Revision: 1.3 $
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 
00018 #ifndef __itkIdentityTransferFunction_h
00019 #define __itkIdentityTransferFunction_h
00020 
00021 #include "itkTransferFunctionBase.h"
00022 
00023 namespace itk
00024 {
00025 namespace Statistics
00026 {
00027 
00028 template<class ScalarType>
00029 class IdentityTransferFunction : public TransferFunctionBase<ScalarType>
00030 {
00031 public:
00032 
00034   typedef IdentityTransferFunction         Self;
00035   typedef TransferFunctionBase<ScalarType> Superclass;
00036   typedef SmartPointer<Self>               Pointer;
00037   typedef SmartPointer<const Self>         ConstPointer;
00038 
00040   itkTypeMacro(IdentityTransferFunction, TransferFunctionBase);
00041 
00043   itkNewMacro(Self);
00044 
00045 
00047   virtual ScalarType Evaluate(const ScalarType& input) const;
00048 
00050   virtual ScalarType EvaluateDerivative(const ScalarType& input) const;
00051 
00052 protected:
00053 
00054   IdentityTransferFunction();
00055   virtual ~IdentityTransferFunction();
00056 
00058   virtual void PrintSelf( std::ostream& os, Indent indent ) const;
00059 
00060 };//class
00061 
00062 } // end namespace Statistics
00063 } // end namespace itk
00064 
00065 #ifndef ITK_MANUAL_INSTANTIATION
00066   #include "itkIdentityTransferFunction.txx"
00067 #endif
00068 
00069 
00070 #endif
00071 

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