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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
00037 template <
00038 class TScalarType=float,
00039 unsigned int NDimensions=3 >
00040 class ITK_EXPORT ScaleTransform : public Transform< TScalarType,
00041 NDimensions,
00042 NDimensions >
00043 {
00044 public:
00046 typedef ScaleTransform Self;
00047 typedef Transform< TScalarType, NDimensions, NDimensions > Superclass;
00048 typedef SmartPointer<Self> Pointer;
00049 typedef SmartPointer<const Self> ConstPointer;
00050
00052 itkNewMacro( Self );
00053
00055 itkTypeMacro( ScaleTransform, Transform );
00056
00058 itkStaticConstMacro(SpaceDimension, unsigned int, NDimensions);
00059 itkStaticConstMacro(ParametersDimension, unsigned int, NDimensions);
00061
00063 typedef typename Superclass::ScalarType ScalarType;
00064
00066 typedef typename Superclass::ParametersType ParametersType;
00067
00069 typedef typename Superclass::JacobianType JacobianType;
00070
00072 typedef FixedArray<TScalarType, itkGetStaticConstMacro(SpaceDimension)> ScaleType;
00073
00075 typedef Vector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputVectorType;
00076 typedef Vector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputVectorType;
00078
00080 typedef CovariantVector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputCovariantVectorType;
00081 typedef CovariantVector<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputCovariantVectorType;
00083
00085 typedef vnl_vector_fixed<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputVnlVectorType;
00086 typedef vnl_vector_fixed<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputVnlVectorType;
00088
00090 typedef Point<TScalarType, itkGetStaticConstMacro(SpaceDimension)> InputPointType;
00091 typedef Point<TScalarType, itkGetStaticConstMacro(SpaceDimension)> OutputPointType;
00093
00098 void SetParameters(const ParametersType & parameters);
00099
00104 const ParametersType & GetParameters( void ) const;
00105
00107 const JacobianType & GetJacobian( const InputPointType & point ) const;
00108
00117 void SetScale( const ScaleType & scale )
00118 { this->Modified(); m_Scale = scale; }
00119
00121 void Compose(const Self * other, bool pre=false);
00122
00126 void Scale(const ScaleType & scale, bool pre=false );
00127
00132 OutputPointType TransformPoint(const InputPointType &point ) const;
00133 OutputVectorType TransformVector(const InputVectorType &vector) const;
00134 OutputVnlVectorType TransformVector(const InputVnlVectorType &vector) const;
00135 OutputCovariantVectorType TransformCovariantVector(
00136 const InputCovariantVectorType &vector) const;
00138
00143 inline InputPointType BackTransform(const OutputPointType &point ) const;
00144 inline InputVectorType BackTransform(const OutputVectorType &vector) const;
00145 inline InputVnlVectorType BackTransform(const OutputVnlVectorType &vector) const;
00146 inline InputCovariantVectorType BackTransform(
00147 const OutputCovariantVectorType &vector) const;
00149
00154 bool GetInverse(Self* inverse) const;
00155
00159 void SetIdentity( void )
00160 { m_Scale.Fill( 1.0 ); }
00161
00162
00164 itkSetMacro( Center, InputPointType );
00165 itkGetConstReferenceMacro( Center, InputPointType );
00167
00168
00170 itkGetConstReferenceMacro( Scale, ScaleType );
00171
00172
00173 protected:
00175 ScaleTransform();
00176
00178 ~ScaleTransform();
00179
00181 void PrintSelf(std::ostream &os, Indent indent) const;
00182
00183
00184 private:
00185 ScaleTransform(const Self & other);
00186 const Self & operator=( const Self & );
00187
00188 ScaleType m_Scale;
00189
00190 InputPointType m_Center;
00191
00192 };
00193
00194 }
00195
00196
00197 #ifndef ITK_MANUAL_INSTANTIATION
00198 #include "itkScaleTransform.txx"
00199 #endif
00200
00201 #endif
00202