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itkElasticBodyReciprocalSplineKernelTransform2.h
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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkElasticBodyReciprocalSplineKernelTransform2.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006/04/17 01:50:19 $
00007   Version:   $Revision: 1.8 $
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 __itkElasticBodyReciprocalSplineKernelTransform2_h
00018 #define __itkElasticBodyReciprocalSplineKernelTransform2_h
00019 
00020 #include "itkKernelTransform2.h"
00021 
00022 
00023 namespace itk
00024 {
00025 
00038 template <class TScalarType = double,   // Data type for scalars (float or double)
00039           unsigned int NDimensions = 3>          // Number of dimensions
00040 class ITK_EXPORT ElasticBodyReciprocalSplineKernelTransform2 :
00041           public KernelTransform2<  TScalarType, NDimensions>
00042 {
00043 public:
00045   typedef ElasticBodyReciprocalSplineKernelTransform2   Self;
00046   typedef KernelTransform2<  TScalarType,
00047                             NDimensions> Superclass;
00048 
00049   typedef SmartPointer<Self>        Pointer;
00050   typedef SmartPointer<const Self>  ConstPointer;
00051 
00053   itkTypeMacro( ElasticBodyReciprocalSplineKernelTransform2, KernelTransform2 );
00054 
00056   itkNewMacro( Self );
00057 
00059   typedef typename Superclass::ScalarType  ScalarType;
00060 
00062   typedef typename Superclass::ParametersType  ParametersType;
00063 
00065   typedef typename Superclass::JacobianType  JacobianType;
00066 
00068   itkStaticConstMacro(SpaceDimension, unsigned int,Superclass::SpaceDimension);
00069 
00073   //itkSetMacro( Alpha, TScalarType ); Cant use the macro because the matrices must be recomputed
00074   virtual void SetAlpha(TScalarType Alpha) {
00075     this->m_Alpha=Alpha;
00076     this->m_LMatrixComputed=false;
00077     this->m_LInverseComputed=false;
00078     this->m_WMatrixComputed=false;
00079   }
00080 
00082   itkGetConstMacro( Alpha, TScalarType );
00083 
00085   virtual void SetPoissonRatio( const TScalarType Nu )
00086   {
00087     if ( Nu > -1.0 && Nu < 0.5 )
00088     {
00089       this->SetAlpha( 8.0 * ( 1.0 - Nu ) - 1.0 );
00090     }
00091   }
00092 
00093   virtual const TScalarType GetPoissonRatio( void ) const
00094   {
00095     return 1.0 - ( this->m_Alpha + 1.0 ) / 8.0;
00096   }
00097 
00100   typedef typename Superclass::InputPointType  InputPointType;
00101   typedef typename Superclass::OutputPointType  OutputPointType;
00102   typedef typename Superclass::InputVectorType InputVectorType;
00103   typedef typename Superclass::OutputVectorType OutputVectorType;
00104   typedef typename Superclass::InputCovariantVectorType InputCovariantVectorType;
00105   typedef typename Superclass::OutputCovariantVectorType OutputCovariantVectorType;
00106 
00107 
00108 protected:
00109   ElasticBodyReciprocalSplineKernelTransform2();
00110   virtual ~ElasticBodyReciprocalSplineKernelTransform2() {};
00111   void PrintSelf(std::ostream& os, Indent indent) const;
00112 
00115   typedef typename Superclass::GMatrixType GMatrixType;
00116 
00125   void ComputeG(const InputVectorType& x, GMatrixType & GMatrix) const;
00126 
00128   TScalarType m_Alpha;
00129 
00130   private:
00131   ElasticBodyReciprocalSplineKernelTransform2(const Self&); //purposely not implemented
00132   void operator=(const Self&); //purposely not implemented
00133 
00134 };
00135 
00136 } // namespace itk
00137 
00138 #ifndef ITK_MANUAL_INSTANTIATION
00139 #include "itkElasticBodyReciprocalSplineKernelTransform2.txx"
00140 #endif
00141 
00142 #endif // __itkElasticBodyReciprocalSplineKernelTransform2_h


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