/usr/include/InsightToolkit/Common/itkMatrix.txx is in libinsighttoolkit3-dev 3.20.1+git20120521-6build1.
This file is owned by root:root, with mode 0o644.
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Program: Insight Segmentation & Registration Toolkit
Module: itkMatrix.txx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkMatrix_txx
#define __itkMatrix_txx
#include "itkMatrix.h"
#include "itkNumericTraits.h"
namespace itk
{
/**
* Product by a Vector
*/
template<class T, unsigned int NRows, unsigned int NColumns >
Vector<T, NRows>
Matrix<T, NRows, NColumns>
::operator*( const Vector<T, NColumns> & vect ) const
{
Vector<T,NRows> result;
for( unsigned int r=0; r<NRows; r++)
{
T sum = NumericTraits<T>::Zero;
for( unsigned int c=0; c<NColumns; c++ )
{
sum += m_Matrix(r,c) * vect[c];
}
result[r] = sum;
}
return result;
}
/**
* Product by a Point
*/
template<class T, unsigned int NRows, unsigned int NColumns >
Point<T, NRows>
Matrix<T, NRows, NColumns>
::operator*( const Point<T, NColumns> & pnt ) const
{
Point<T,NRows> result;
for( unsigned int r=0; r<NRows; r++)
{
T sum = NumericTraits<T>::Zero;
for( unsigned int c=0; c<NColumns; c++ )
{
sum += m_Matrix(r,c) * pnt[c];
}
result[r] = sum;
}
return result;
}
/**
* Product by a CovariantVector
*/
template<class T, unsigned int NRows, unsigned int NColumns >
CovariantVector<T, NRows>
Matrix<T, NRows, NColumns>
::operator*( const CovariantVector<T, NColumns> & covect ) const
{
CovariantVector<T,NRows> result;
for( unsigned int r=0; r<NRows; r++)
{
T sum = NumericTraits<T>::Zero;
for( unsigned int c=0; c<NColumns; c++ )
{
sum += m_Matrix(r,c) * covect[c];
}
result[r] = sum;
}
return result;
}
/**
* Product by a matrix
*/
template<class T, unsigned int NRows, unsigned int NColumns >
Matrix<T, NRows, NColumns>
Matrix<T, NRows, NColumns>
::operator*( const Self & matrix ) const
{
Self result;
result = m_Matrix * matrix.m_Matrix;
return result;
}
/**
* Matrix Addition
*/
template<class T, unsigned int NRows, unsigned int NColumns >
Matrix<T, NRows, NColumns>
Matrix<T, NRows, NColumns>
::operator+( const Self & matrix ) const
{
Self result;
for( unsigned int r=0; r<NRows; r++)
{
for( unsigned int c=0; c<NColumns; c++ )
{
result.m_Matrix(r,c) = m_Matrix(r,c) + matrix.m_Matrix(r,c);
}
}
return result;
}
/**
* Matrix Addition in-place
*/
template<class T, unsigned int NRows, unsigned int NColumns >
const Matrix<T, NRows, NColumns> &
Matrix<T, NRows, NColumns>
::operator+=( const Self & matrix )
{
for( unsigned int r=0; r<NRows; r++)
{
for( unsigned int c=0; c<NColumns; c++ )
{
m_Matrix(r,c) += matrix.m_Matrix(r,c);
}
}
return *this;
}
/**
* Matrix Subtraction
*/
template<class T, unsigned int NRows, unsigned int NColumns >
Matrix<T, NRows, NColumns>
Matrix<T, NRows, NColumns>
::operator-( const Self & matrix ) const
{
Self result;
for( unsigned int r=0; r<NRows; r++)
{
for( unsigned int c=0; c<NColumns; c++ )
{
result.m_Matrix(r,c) = m_Matrix(r,c) - matrix.m_Matrix(r,c);
}
}
return result;
}
/**
* Matrix subtraction in-place
*/
template<class T, unsigned int NRows, unsigned int NColumns >
const Matrix<T, NRows, NColumns> &
Matrix<T, NRows, NColumns>
::operator-=( const Self & matrix )
{
for( unsigned int r=0; r<NRows; r++)
{
for( unsigned int c=0; c<NColumns; c++ )
{
m_Matrix(r,c) -= matrix.m_Matrix(r,c);
}
}
return *this;
}
/**
* Product by a vnl_matrix
*/
template<class T, unsigned int NRows, unsigned int NColumns >
vnl_matrix<T>
Matrix<T, NRows, NColumns>
::operator*( const vnl_matrix<T> & matrix ) const
{
return m_Matrix * matrix;
}
/**
* Product by a matrix
*/
template<class T, unsigned int NRows, unsigned int NColumns >
void
Matrix<T, NRows, NColumns>
::operator*=( const Self & matrix )
{
m_Matrix *= matrix.m_Matrix;
}
/**
* Product by a vnl_matrix
*/
template<class T, unsigned int NRows, unsigned int NColumns >
void
Matrix<T, NRows, NColumns>
::operator*=( const vnl_matrix<T> & matrix )
{
m_Matrix *= matrix;
}
/**
* Product by a vnl_vector
*/
template<class T, unsigned int NRows, unsigned int NColumns >
vnl_vector<T>
Matrix<T, NRows, NColumns>
::operator*( const vnl_vector<T> & vc ) const
{
return m_Matrix * vc;
}
} // end namespace itk
#endif
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