/usr/include/mia-2.2/mia/2d/matrix.hh is in libmia-2.2-dev 2.2.2-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | /* -*- mia-c++ -*-
*
* This file is part of MIA - a toolbox for medical image analysis
* Copyright (c) Leipzig, Madrid 1999-2014 Gert Wollny
*
* MIA is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MIA; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __mia_2d_matrix_hh
#define __mia_2d_matrix_hh
#include <mia/2d/vector.hh>
NS_MIA_BEGIN
/**
@ingroup misc
\brief A simple 2x2 matrix
Simple implementation of a 2D Matrix to store 2nd order derivatives.
*/
template <typename T>
struct T2DMatrix: public T2DVector< T2DVector<T> > {
T2DMatrix();
/// copy constructor
T2DMatrix(const T2DMatrix<T>& o);
/// construct the matrix from a 2D vector of 2D vectors
T2DMatrix(const T2DVector< T2DVector<T> >& o);
/** construct the matrix from two 2D vectors
\param x 1st row
\param y 2nd row
*/
T2DMatrix(const T2DVector< T >& x, const T2DVector< T >& y );
/// assignment operator
T2DMatrix& operator = (const T2DMatrix<T>& o);
/// element wise subtract operator
T2DMatrix& operator -= (const T2DMatrix<T>& o);
/**
\returns the transposed of this matrix
*/
T2DMatrix<T> transposed()const;
static const T2DMatrix _1;
static const T2DMatrix _0;
};
template <typename T>
const T2DMatrix<T> T2DMatrix<T>::_1(T2DVector< T >(1,0),
T2DVector< T >(0,1));
template <typename T>
const T2DMatrix<T> T2DMatrix<T>::_0;
template <typename T>
T2DMatrix<T>::T2DMatrix():
T2DVector<T2DVector<T> >(T2DVector<T>(), T2DVector<T>())
{
}
template <typename T>
T2DMatrix<T>::T2DMatrix(const T2DMatrix<T>& o):
T2DVector<T2DVector<T> >(o.x, o.y)
{
}
template <typename T>
T2DMatrix<T>::T2DMatrix(const T2DVector< T2DVector<T> >& o):
T2DVector<T2DVector<T> >(o.x, o.y)
{
}
template <typename T>
T2DMatrix<T>::T2DMatrix(const T2DVector< T >& x, const T2DVector< T >& y ):
T2DVector<T2DVector<T> >(x, y)
{
}
template <typename T>
T2DMatrix<T>& T2DMatrix<T>::operator = (const T2DMatrix<T>& o)
{
this->x = o.x;
this->y = o.y;
return *this;
}
template <typename T>
T2DMatrix<T>& T2DMatrix<T>::operator -= (const T2DMatrix<T>& o)
{
this->x -= o.x;
this->y -= o.y;
return *this;
}
template <typename T>
T2DMatrix<T> T2DMatrix<T>::transposed()const
{
return T2DMatrix<T>(T2DVector< T >(this->x.x, this->y.x),
T2DVector< T >(this->y.y, this->y.y));
}
/**
Left hand side product of a matrix m and a vector x
\param x
\param m
\returns x * m
*/
template <typename T>
T2DVector<T> operator * (const T2DVector<T>& x, const T2DMatrix<T>& m)
{
return T2DVector<T>(dot(m.x, x), dot(m.y, x));
}
/**
right hand side product of a matrix m and a vector x
\param m
\param x
\returns m * x
*/
template <typename T>
T2DVector<T> operator * (const T2DMatrix<T>& m, const T2DVector<T>& x )
{
return T2DVector<T>(m.x.x * x.x + m.y.x * x.y,
m.x.y * x.x + m.y.y * x.y);
}
/// a simple 2x2 matrix
typedef T2DMatrix<float> C2DFMatrix;
NS_MIA_END
#endif
|