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itkMatrix.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMatrix.h,v $
00005   Language:  C++
00006   Date:      $Date: 2004/05/27 23:12:31 $
00007   Version:   $Revision: 1.16 $
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 __itkMatrix_h
00018 #define __itkMatrix_h
00019 
00020 
00021 #include "itkPoint.h"
00022 #include "itkVector.h"
00023 #include "itkCovariantVector.h"
00024 #include "vnl/vnl_matrix_fixed.h"
00025 
00026 
00027 namespace itk
00028 {
00029 
00038 template<class T, unsigned int NRows=3, unsigned int NColumns=3>
00039 class Matrix {
00040 public:
00042   typedef Matrix  Self;
00043 
00045   typedef T ValueType;
00046   typedef T ComponentType;
00047 
00049   itkStaticConstMacro(RowDimensions,    unsigned int, NRows);
00050   itkStaticConstMacro(ColumnDimensions, unsigned int, NColumns);
00051 
00053   typedef vnl_matrix_fixed<T,NRows,NColumns>  InternalMatrixType;
00054 
00056   Vector<T,NRows> operator*(const Vector<T,NColumns> & vector) const;
00057  
00059   Point<T,NRows> operator*(const Point<T,NColumns> & vector) const;
00060  
00062   CovariantVector<T,NRows> 
00063   operator*(const CovariantVector<T,NColumns> & vector) const;
00064   
00066   Self operator*(const Self & matrix) const;
00067  
00069   Self operator+(const Self & matrix) const;
00070   const Self & operator+=(const Self & matrix );
00071  
00073   Self operator-(const Self & matrix) const;
00074   const Self & operator-=(const Self & matrix );
00075  
00077   vnl_matrix<T> operator*(const vnl_matrix<T> & matrix) const;
00078 
00080   void operator*=(const Self & matrix);
00081  
00083   void operator*=(const vnl_matrix<T> & matrix);
00084 
00086   vnl_vector<T> operator*(const vnl_vector<T> & matrix) const;
00087 
00089   void operator*=(const T & value)
00090     { m_Matrix *= value; }
00091 
00093   Self operator*(const T & value)
00094     { Self result( *this );
00095       result *= value;
00096       return result; }
00097 
00099   inline T * operator[]( unsigned int i )
00100     { return m_Matrix[i]; }
00101 
00103   inline const T * operator[]( unsigned int i ) const
00104     { return m_Matrix[i]; }
00105 
00107   inline InternalMatrixType & GetVnlMatrix( void )
00108     { return m_Matrix; }
00109 
00111   inline const InternalMatrixType & GetVnlMatrix( void ) const
00112     { return m_Matrix; }
00113 
00115   inline void SetIdentity( void ) 
00116     { m_Matrix.set_identity(); }
00117 
00119   inline void Fill( const T & value ) 
00120     { m_Matrix.fill( value ); }
00121 
00123   inline const Self & operator=( const vnl_matrix<T> & matrix);
00124 
00126   inline const Self & operator=( const Self & matrix);
00127 
00129   inline vnl_matrix_fixed<T,NColumns,NRows> GetInverse( void ) const;
00130  
00132   inline vnl_matrix_fixed<T,NColumns,NRows> GetTranspose( void ) const;
00133 
00135   Matrix() : m_Matrix(NumericTraits<T>::Zero) {};
00136 
00138   Matrix(const Self & matrix) : m_Matrix( matrix.m_Matrix ) {};
00139  
00140 private:
00141   InternalMatrixType     m_Matrix;
00142 
00143 };
00144 
00145 template< class T, unsigned int NRows, unsigned int NColumns >  
00146 ITK_EXPORT std::ostream& operator<<(std::ostream& os, 
00147                                     const Matrix<T,NRows,NColumns> & v) 
00148                             { os << v.GetVnlMatrix(); return os; }
00149 
00150 
00151   
00152 } // end namespace itk
00153   
00154 
00155 #ifndef ITK_MANUAL_INSTANTIATION
00156 #include "itkMatrix.txx"
00157 #endif
00158 
00159 
00160 #endif 

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