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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: 2003/12/02 01:43:44 $
00007   Version:   $Revision: 1.15 $
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   vnl_matrix<T> operator*(const vnl_matrix<T> & matrix) const;
00070 
00072   void operator*=(const Self & matrix);
00073  
00075   void operator*=(const vnl_matrix<T> & matrix);
00076 
00078   vnl_vector<T> operator*(const vnl_vector<T> & matrix) const;
00079 
00081   void operator*=(const T & value)
00082     { m_Matrix *= value; }
00083 
00085   Self operator*(const T & value)
00086     { Self result( *this );
00087       result *= value;
00088       return result; }
00089 
00091   inline T * operator[]( unsigned int i )
00092     { return m_Matrix[i]; }
00093 
00095   inline const T * operator[]( unsigned int i ) const
00096     { return m_Matrix[i]; }
00097 
00099   inline InternalMatrixType & GetVnlMatrix( void )
00100     { return m_Matrix; }
00101 
00103   inline const InternalMatrixType & GetVnlMatrix( void ) const
00104     { return m_Matrix; }
00105 
00107   inline void SetIdentity( void ) 
00108     { m_Matrix.set_identity(); }
00109 
00111   inline void Fill( const T & value ) 
00112     { m_Matrix.fill( value ); }
00113 
00115   inline const Self & operator=( const vnl_matrix<T> & matrix);
00116 
00118   inline const Self & operator=( const Self & matrix);
00119 
00121   inline vnl_matrix_fixed<T,NColumns,NRows> GetInverse( void ) const;
00122  
00124   inline vnl_matrix_fixed<T,NColumns,NRows> GetTranspose( void ) const;
00125 
00127   Matrix() : m_Matrix(NumericTraits<T>::Zero) {};
00128 
00130   Matrix(const Self & matrix) : m_Matrix( matrix.m_Matrix ) {};
00131  
00132 private:
00133   InternalMatrixType     m_Matrix;
00134 
00135 };
00136 
00137 template< class T, unsigned int NRows, unsigned int NColumns >  
00138 ITK_EXPORT std::ostream& operator<<(std::ostream& os, 
00139                                     const Matrix<T,NRows,NColumns> & v) 
00140                             { os << v.GetVnlMatrix(); return os; }
00141 
00142 
00143   
00144 } // end namespace itk
00145   
00146 
00147 #ifndef ITK_MANUAL_INSTANTIATION
00148 #include "itkMatrix.txx"
00149 #endif
00150 
00151 
00152 #endif 

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