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itkScaleTransform.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkScaleTransform.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/09/11 19:57:13 $
00007   Version:   $Revision: 1.15 $
00008 
00009   Copyright (c) 2002 Insight 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 __itkScaleTransform_h
00019 #define __itkScaleTransform_h
00020 
00021 #include <iostream>
00022 #include "itkTransform.h"
00023 #include "itkExceptionObject.h"
00024 #include "itkMatrix.h"
00025 
00026 namespace itk
00027 {
00028 
00036 template <
00037     class TScalarType=float, // Type for cordinate representation type (float or double)
00038     unsigned int NDimensions=3  >  // Number of dimensions
00039 class ScaleTransform : public Transform< TScalarType, 
00040                                          NDimensions,
00041                                          NDimensions >
00042 {
00043 public:
00045   typedef ScaleTransform Self;
00046   typedef Transform< TScalarType, NDimensions, NDimensions >  Superclass;
00047   typedef SmartPointer<Self>        Pointer;
00048   typedef SmartPointer<const Self>  ConstPointer;
00049   
00051   itkNewMacro( Self );
00052 
00054   itkTypeMacro( ScaleTransform, Transform );
00055 
00057   itkStaticConstMacro(SpaceDimension, unsigned int, NDimensions);
00058   itkStaticConstMacro(ParametersDimension, unsigned int, NDimensions);
00059 
00061   typedef typename Superclass::ScalarType  ScalarType;
00062 
00064   typedef typename Superclass::ParametersType  ParametersType;
00065 
00067   typedef typename Superclass::JacobianType  JacobianType;
00068 
00070   typedef FixedArray<TScalarType, itkGetStaticConstMacro(SpaceDimension)> ScaleType;
00071 
00073   typedef Vector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputVectorType;
00074   typedef Vector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputVectorType;
00075   
00077   typedef CovariantVector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputCovariantVectorType;
00078   typedef CovariantVector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputCovariantVectorType;
00079   
00081   typedef vnl_vector_fixed<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputVnlVectorType;
00082   typedef vnl_vector_fixed<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputVnlVectorType;
00083   
00085   typedef Point<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputPointType;
00086   typedef Point<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputPointType;
00087   
00091   const ScaleType & GetScale( void ) const
00092     { return m_Scale; }
00093 
00097   void SetParameters(const ParametersType & parameters);
00098 
00104   const ParametersType & GetParameters( void ) const;
00105 
00107   const JacobianType & GetJacobian( const InputPointType & point ) const;
00108 
00114   void SetScale( const ScaleType & scale )
00115     { this->Modified(); m_Scale = scale; }
00116 
00118   void Compose(const Self * other, bool pre=false);
00119 
00124   void Scale(const ScaleType & scale, bool pre=false );
00125 
00130   OutputPointType     TransformPoint(const InputPointType  &point ) const;
00131   OutputVectorType    TransformVector(const InputVectorType &vector) const;
00132   OutputVnlVectorType TransformVector(const InputVnlVectorType &vector) const;
00133   OutputCovariantVectorType TransformCovariantVector(
00134                                  const InputCovariantVectorType &vector) const;
00135   
00140   inline InputPointType     BackTransform(const OutputPointType  &point ) const;
00141   inline InputVectorType    BackTransform(const OutputVectorType &vector) const;
00142   inline InputVnlVectorType BackTransform(const OutputVnlVectorType &vector) const;
00143   inline InputCovariantVectorType BackTransform(
00144                                      const OutputCovariantVectorType &vector) const;
00145     
00150   ScaleTransform::Pointer Inverse(void) const;
00151 
00155   void SetIdentity( void )
00156     { m_Scale.Fill( 1.0 ); }
00157 
00158 protected:
00160   ScaleTransform();
00161 
00163   ~ScaleTransform();
00164 
00166   void PrintSelf(std::ostream &os, Indent indent) const;
00167 
00168 private:
00169   ScaleTransform(const Self & other); //purposely not implemented
00170   const Self & operator=( const Self & ); //purposely not implemented
00171 
00172   ScaleType   m_Scale;  // Scales of the transformation
00173 
00174 }; //class ScaleTransform
00175 
00176 }  // namespace itk
00177 
00178 
00179 #ifndef ITK_MANUAL_INSTANTIATION
00180 #include "itkScaleTransform.txx"
00181 #endif
00182 
00183 #endif /* __itkScaleTransform_h */

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