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#ifndef MATH_SQUAREMATRIX_HPP |
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#define MATH_SQUAREMATRIX_HPP |
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|
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< |
#include "Vector3d.hpp" |
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> |
#include "math/RectMatrix.hpp" |
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namespace oopse { |
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* @template Dim the dimension of the square matrix |
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*/ |
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template<typename Real, int Dim> |
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< |
class SquareMatrix{ |
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> |
class SquareMatrix : public RectMatrix<Real, Dim, Dim> { |
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public: |
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|
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/** default constructor */ |
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data_[i][j] = 0.0; |
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} |
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|
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– |
/** Constructs and initializes every element of this matrix to a scalar */ |
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– |
SquareMatrix(double s) { |
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– |
for (unsigned int i = 0; i < Dim; i++) |
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for (unsigned int j = 0; j < Dim; j++) |
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data_[i][j] = s; |
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} |
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|
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/** copy constructor */ |
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< |
SquareMatrix(const SquareMatrix<Real, Dim>& m) { |
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*this = m; |
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> |
SquareMatrix(const RectMatrix<Real, Dim, Dim>& m) : RectMatrix<Real, Dim, Dim>(m) { |
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} |
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|
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/** destructor*/ |
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~SquareMatrix() {} |
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– |
|
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/** copy assignment operator */ |
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< |
SquareMatrix<Real, Dim>& operator =(const SquareMatrix<Real, Dim>& m) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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data_[i][j] = m.data_[i][j]; |
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> |
SquareMatrix<Real, Dim>& operator =(const RectMatrix<Real, Dim, Dim>& m) { |
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> |
RectMatrix<Real, Dim, Dim>::operator=(m); |
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> |
return *this; |
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} |
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|
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< |
/** |
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* Return the reference of a single element of this matrix. |
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* @return the reference of a single element of this matrix |
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* @param i row index |
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* @param j colum index |
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< |
*/ |
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double& operator()(unsigned int i, unsigned int j) { |
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< |
return data_[i][j]; |
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< |
} |
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> |
|
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> |
/** Retunrs an identity matrix*/ |
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|
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/** |
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* Return the value of a single element of this matrix. |
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* @return the value of a single element of this matrix |
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* @param i row index |
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* @param j colum index |
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*/ |
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double operator()(unsigned int i, unsigned int j) const { |
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return data_[i][j]; |
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< |
} |
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|
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/** |
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* Returns a row of this matrix as a vector. |
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* @return a row of this matrix as a vector |
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* @param row the row index |
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*/ |
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Vector<Real, Dim> getRow(unsigned int row) { |
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Vector<Real, Dim> v; |
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|
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for (unsigned int i = 0; i < Dim; i++) |
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v[i] = data_[row][i]; |
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|
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return v; |
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} |
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|
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/** |
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* Sets a row of this matrix |
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* @param row the row index |
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* @param v the vector to be set |
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*/ |
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void setRow(unsigned int row, const Vector<Real, Dim>& v) { |
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Vector<Real, Dim> v; |
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|
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for (unsigned int i = 0; i < Dim; i++) |
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data_[row][i] = v[i]; |
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} |
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|
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/** |
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* Returns a column of this matrix as a vector. |
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* @return a column of this matrix as a vector |
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* @param col the column index |
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*/ |
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Vector<Real, Dim> getColum(unsigned int col) { |
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Vector<Real, Dim> v; |
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|
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for (unsigned int i = 0; i < Dim; i++) |
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v[i] = data_[i][col]; |
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|
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return v; |
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} |
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|
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/** |
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* Sets a column of this matrix |
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* @param col the column index |
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* @param v the vector to be set |
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*/ |
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void setColum(unsigned int col, const Vector<Real, Dim>& v){ |
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Vector<Real, Dim> v; |
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|
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for (unsigned int i = 0; i < Dim; i++) |
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data_[i][col] = v[i]; |
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} |
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|
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/** Negates the value of this matrix in place. */ |
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inline void negate() { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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data_[i][j] = -data_[i][j]; |
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} |
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|
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/** |
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* Sets the value of this matrix to the negation of matrix m. |
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* @param m the source matrix |
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*/ |
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inline void negate(const SquareMatrix<Real, Dim>& m) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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data_[i][j] = -m.data_[i][j]; |
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< |
} |
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|
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/** |
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* Sets the value of this matrix to the sum of itself and m (*this += m). |
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* @param m the other matrix |
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< |
*/ |
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< |
inline void add( const SquareMatrix<Real, Dim>& m ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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< |
data_[i][j] += m.data_[i][j]; |
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< |
} |
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< |
|
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/** |
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* Sets the value of this matrix to the sum of m1 and m2 (*this = m1 + m2). |
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* @param m1 the first matrix |
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* @param m2 the second matrix |
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< |
*/ |
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< |
inline void add( const SquareMatrix<Real, Dim>& m1, const SquareMatrix<Real, Dim>& m2 ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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< |
data_[i][j] = m1.data_[i][j] + m2.data_[i][j]; |
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< |
} |
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< |
|
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< |
/** |
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< |
* Sets the value of this matrix to the difference of itself and m (*this -= m). |
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* @param m the other matrix |
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< |
*/ |
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< |
inline void sub( const SquareMatrix<Real, Dim>& m ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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< |
data_[i][j] -= m.data_[i][j]; |
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< |
} |
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< |
|
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< |
/** |
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< |
* Sets the value of this matrix to the difference of matrix m1 and m2 (*this = m1 - m2). |
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< |
* @param m1 the first matrix |
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< |
* @param m2 the second matrix |
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< |
*/ |
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< |
inline void sub( const SquareMatrix<Real, Dim>& m1, const Vector &m2){ |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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< |
data_[i][j] = m1.data_[i][j] - m2.data_[i][j]; |
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< |
} |
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< |
|
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< |
/** |
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< |
* Sets the value of this matrix to the scalar multiplication of itself (*this *= s). |
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< |
* @param s the scalar value |
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< |
*/ |
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< |
inline void mul( double s ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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< |
data_[i][j] *= s; |
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< |
} |
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< |
|
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< |
/** |
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* Sets the value of this matrix to the scalar multiplication of matrix m (*this = s * m). |
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* @param s the scalar value |
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< |
* @param m the matrix |
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< |
*/ |
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< |
inline void mul( double s, const SquareMatrix<Real, Dim>& m ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) |
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< |
data_[i][j] = s * m.data_[i][j]; |
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} |
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|
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/** |
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* Sets the value of this matrix to the multiplication of this matrix and matrix m |
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* (*this = *this * m). |
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* @param m the matrix |
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*/ |
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< |
inline void mul(const SquareMatrix<Real, Dim>& m ) { |
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< |
SquareMatrix<Real, Dim> tmp(*this); |
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> |
static SquareMatrix<Real, Dim> identity() { |
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> |
SquareMatrix<Real, Dim> m; |
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|
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) { |
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|
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< |
data_[i][j] = 0.0; |
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< |
for (unsigned int k = 0; k < Dim; k++) |
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< |
data_[i][j] = tmp.data_[i][k] * m.data_[k][j] |
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< |
} |
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} |
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|
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/** |
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* Sets the value of this matrix to the left multiplication of matrix m into itself |
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* (*this = m * *this). |
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* @param m the matrix |
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< |
*/ |
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< |
inline void leftmul(const SquareMatrix<Real, Dim>& m ) { |
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< |
SquareMatrix<Real, Dim> tmp(*this); |
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< |
|
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) { |
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< |
|
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< |
data_[i][j] = 0.0; |
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< |
for (unsigned int k = 0; k < Dim; k++) |
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< |
data_[i][j] = m.data_[i][k] * tmp.data_[k][j] |
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< |
} |
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< |
} |
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< |
|
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< |
/** |
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* Sets the value of this matrix to the multiplication of matrix m1 and matrix m2 |
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* (*this = m1 * m2). |
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< |
* @param m1 the first matrix |
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< |
* @param m2 the second matrix |
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< |
*/ |
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< |
inline void mul(const SquareMatrix<Real, Dim>& m1, |
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< |
const SquareMatrix<Real, Dim>& m2 ) { |
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< |
for (unsigned int i = 0; i < Dim; i++) |
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< |
for (unsigned int j = 0; j < Dim; j++) { |
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< |
|
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< |
data_[i][j] = 0.0; |
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< |
for (unsigned int k = 0; k < Dim; k++) |
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< |
data_[i][j] = m1.data_[i][k] * m2.data_[k][j] |
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< |
} |
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> |
for (unsigned int i = 0; i < Dim; i++) |
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> |
for (unsigned int j = 0; j < Dim; j++) |
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> |
if (i == j) |
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> |
m(i, j) = 1.0; |
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> |
else |
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> |
m(i, j) = 0.0; |
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|
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+ |
return m; |
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} |
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– |
|
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/** |
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* Sets the value of this matrix to the scalar division of itself (*this /= s ). |
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* @param s the scalar value |
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*/ |
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– |
inline void div( double s) { |
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for (unsigned int i = 0; i < Dim; i++) |
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– |
for (unsigned int j = 0; j < Dim; j++) |
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– |
data_[i][j] /= s; |
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} |
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– |
|
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– |
inline SquareMatrix<Real, Dim>& operator=(const SquareMatrix<Real, Dim>& v) { |
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– |
if (this == &v) |
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– |
return *this; |
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– |
|
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– |
for (unsigned int i = 0; i < Dim; i++) |
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– |
data_[i] = v[i]; |
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– |
|
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– |
return *this; |
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– |
} |
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– |
|
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– |
/** |
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– |
* Sets the value of this matrix to the scalar division of matrix v1 (*this = v1 / s ). |
| 304 |
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* @paran v1 the source matrix |
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* @param s the scalar value |
| 306 |
– |
*/ |
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– |
inline void div( const SquareMatrix<Real, Dim>& v1, double s ) { |
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– |
for (unsigned int i = 0; i < Dim; i++) |
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– |
data_[i] = v1.data_[i] / s; |
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– |
} |
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|
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< |
/** |
| 82 |
< |
* Multiples a scalar into every element of this matrix. |
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< |
* @param s the scalar value |
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< |
*/ |
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< |
SquareMatrix<Real, Dim>& operator *=(const double s) { |
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< |
this->mul(s); |
| 318 |
< |
return *this; |
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< |
} |
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> |
/** Retunrs the inversion of this matrix. */ |
| 82 |
> |
SquareMatrix<Real, Dim> inverse() { |
| 83 |
> |
SquareMatrix<Real, Dim> result; |
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|
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< |
/** |
| 322 |
< |
* Divides every element of this matrix by a scalar. |
| 323 |
< |
* @param s the scalar value |
| 324 |
< |
*/ |
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< |
SquareMatrix<Real, Dim>& operator /=(const double s) { |
| 326 |
< |
this->div(s); |
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< |
return *this; |
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> |
return result; |
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} |
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|
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– |
/** |
| 331 |
– |
* Sets the value of this matrix to the sum of the other matrix and itself (*this += m). |
| 332 |
– |
* @param m the other matrix |
| 333 |
– |
*/ |
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SquareMatrix<Real, Dim>& operator += (const SquareMatrix<Real, Dim>& m) { |
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– |
add(m); |
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– |
return *this; |
| 337 |
– |
} |
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– |
|
| 339 |
– |
/** |
| 340 |
– |
* Sets the value of this matrix to the differerence of itself and the other matrix (*this -= m) |
| 341 |
– |
* @param m the other matrix |
| 342 |
– |
*/ |
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– |
SquareMatrix<Real, Dim>& operator -= (const SquareMatrix<Real, Dim>& m){ |
| 344 |
– |
sub(m); |
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– |
return *this; |
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– |
} |
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– |
|
| 348 |
– |
/** set this matrix to an identity matrix*/ |
| 349 |
– |
|
| 350 |
– |
void identity() { |
| 351 |
– |
for (unsigned int i = 0; i < Dim; i++) |
| 352 |
– |
for (unsigned int i = 0; i < Dim; i++) |
| 353 |
– |
if (i == j) |
| 354 |
– |
data_[i][j] = 1.0; |
| 355 |
– |
else |
| 356 |
– |
data_[i][j] = 0.0; |
| 357 |
– |
} |
| 358 |
– |
|
| 359 |
– |
/** Sets the value of this matrix to the inversion of itself. */ |
| 360 |
– |
void inverse() { |
| 361 |
– |
inverse(*this); |
| 362 |
– |
} |
| 363 |
– |
|
| 364 |
– |
/** |
| 365 |
– |
* Sets the value of this matrix to the inversion of other matrix. |
| 366 |
– |
* @ param m the source matrix |
| 367 |
– |
*/ |
| 368 |
– |
void inverse(const SquareMatrix<Real, Dim>& m); |
| 88 |
|
|
| 370 |
– |
/** Sets the value of this matrix to the transpose of itself. */ |
| 371 |
– |
void transpose() { |
| 372 |
– |
for (unsigned int i = 0; i < Dim - 1; i++) |
| 373 |
– |
for (unsigned int j = i; j < Dim; j++) |
| 374 |
– |
std::swap(data_[i][j], data_[j][i]); |
| 375 |
– |
} |
| 89 |
|
|
| 377 |
– |
/** |
| 378 |
– |
* Sets the value of this matrix to the transpose of other matrix. |
| 379 |
– |
* @ param m the source matrix |
| 380 |
– |
*/ |
| 381 |
– |
void transpose(const SquareMatrix<Real, Dim>& m) { |
| 382 |
– |
|
| 383 |
– |
if (this == &m) { |
| 384 |
– |
transpose(); |
| 385 |
– |
} else { |
| 386 |
– |
for (unsigned int i = 0; i < Dim; i++) |
| 387 |
– |
for (unsigned int j =0; j < Dim; j++) |
| 388 |
– |
data_[i][j] = m.data_[i][j]; |
| 389 |
– |
} |
| 390 |
– |
} |
| 391 |
– |
|
| 90 |
|
/** Returns the determinant of this matrix. */ |
| 91 |
|
double determinant() const { |
| 92 |
< |
|
| 92 |
> |
double det; |
| 93 |
> |
return det; |
| 94 |
|
} |
| 95 |
|
|
| 96 |
|
/** Returns the trace of this matrix. */ |
| 107 |
|
bool isSymmetric() const { |
| 108 |
|
for (unsigned int i = 0; i < Dim - 1; i++) |
| 109 |
|
for (unsigned int j = i; j < Dim; j++) |
| 110 |
< |
if (fabs(data_[i][j] - data_[j][i]) > epsilon) |
| 110 |
> |
if (fabs(data_[i][j] - data_[j][i]) > oopse::epsilon) |
| 111 |
|
return false; |
| 112 |
|
|
| 113 |
|
return true; |
| 114 |
|
} |
| 115 |
|
|
| 116 |
|
/** Tests if this matrix is orthogona. */ |
| 117 |
< |
bool isOrthogonal() const { |
| 118 |
< |
SquareMatrix<Real, Dim> t(*this); |
| 117 |
> |
bool isOrthogonal() { |
| 118 |
> |
SquareMatrix<Real, Dim> tmp; |
| 119 |
|
|
| 120 |
< |
t.transpose(); |
| 120 |
> |
tmp = *this * transpose(); |
| 121 |
|
|
| 122 |
< |
return isUnitMatrix(*this * t); |
| 122 |
> |
return tmp.isUnitMatrix(); |
| 123 |
|
} |
| 124 |
|
|
| 125 |
|
/** Tests if this matrix is diagonal. */ |
| 126 |
|
bool isDiagonal() const { |
| 127 |
|
for (unsigned int i = 0; i < Dim ; i++) |
| 128 |
|
for (unsigned int j = 0; j < Dim; j++) |
| 129 |
< |
if (i !=j && fabs(data_[i][j]) > epsilon) |
| 129 |
> |
if (i !=j && fabs(data_[i][j]) > oopse::epsilon) |
| 130 |
|
return false; |
| 131 |
|
|
| 132 |
|
return true; |
| 138 |
|
return false; |
| 139 |
|
|
| 140 |
|
for (unsigned int i = 0; i < Dim ; i++) |
| 141 |
< |
if (fabs(data_[i][i] - 1) > epsilon) |
| 141 |
> |
if (fabs(data_[i][i] - 1) > oopse::epsilon) |
| 142 |
|
return false; |
| 143 |
|
|
| 144 |
|
return true; |
| 145 |
< |
} |
| 447 |
< |
|
| 448 |
< |
protected: |
| 449 |
< |
double data_[Dim][Dim]; /**< matrix element */ |
| 145 |
> |
} |
| 146 |
|
|
| 147 |
|
};//end SquareMatrix |
| 148 |
|
|
| 453 |
– |
|
| 454 |
– |
/** Negate the value of every element of this matrix. */ |
| 455 |
– |
template<typename Real, int Dim> |
| 456 |
– |
inline SquareMatrix<Real, Dim> operator -(const SquareMatrix& m) { |
| 457 |
– |
SquareMatrix<Real, Dim> result(m); |
| 458 |
– |
|
| 459 |
– |
result.negate(); |
| 460 |
– |
|
| 461 |
– |
return result; |
| 462 |
– |
} |
| 463 |
– |
|
| 464 |
– |
/** |
| 465 |
– |
* Return the sum of two matrixes (m1 + m2). |
| 466 |
– |
* @return the sum of two matrixes |
| 467 |
– |
* @param m1 the first matrix |
| 468 |
– |
* @param m2 the second matrix |
| 469 |
– |
*/ |
| 470 |
– |
template<typename Real, int Dim> |
| 471 |
– |
inline SquareMatrix<Real, Dim> operator + (const SquareMatrix<Real, Dim>& m1, |
| 472 |
– |
const SquareMatrix<Real, Dim>& m2) { |
| 473 |
– |
SquareMatrix<Real, Dim>result; |
| 474 |
– |
|
| 475 |
– |
result.add(m1, m2); |
| 476 |
– |
|
| 477 |
– |
return result; |
| 478 |
– |
} |
| 479 |
– |
|
| 480 |
– |
/** |
| 481 |
– |
* Return the difference of two matrixes (m1 - m2). |
| 482 |
– |
* @return the sum of two matrixes |
| 483 |
– |
* @param m1 the first matrix |
| 484 |
– |
* @param m2 the second matrix |
| 485 |
– |
*/ |
| 486 |
– |
template<typename Real, int Dim> |
| 487 |
– |
inline SquareMatrix<Real, Dim> operator - (const SquareMatrix<Real, Dim>& m1, |
| 488 |
– |
const SquareMatrix<Real, Dim>& m2) { |
| 489 |
– |
SquareMatrix<Real, Dim>result; |
| 490 |
– |
|
| 491 |
– |
result.sub(m1, m2); |
| 492 |
– |
|
| 493 |
– |
return result; |
| 494 |
– |
} |
| 495 |
– |
|
| 496 |
– |
/** |
| 497 |
– |
* Return the multiplication of two matrixes (m1 * m2). |
| 498 |
– |
* @return the multiplication of two matrixes |
| 499 |
– |
* @param m1 the first matrix |
| 500 |
– |
* @param m2 the second matrix |
| 501 |
– |
*/ |
| 502 |
– |
template<typename Real, int Dim> |
| 503 |
– |
inline SquareMatrix<Real, Dim> operator *(const SquareMatrix<Real, Dim>& m1, |
| 504 |
– |
const SquareMatrix<Real, Dim>& m2) { |
| 505 |
– |
SquareMatrix<Real, Dim> result; |
| 506 |
– |
|
| 507 |
– |
result.mul(m1, m2); |
| 508 |
– |
|
| 509 |
– |
return result; |
| 510 |
– |
} |
| 511 |
– |
|
| 512 |
– |
/** |
| 513 |
– |
* Return the multiplication of matrixes m and vector v (m * v). |
| 514 |
– |
* @return the multiplication of matrixes and vector |
| 515 |
– |
* @param m the matrix |
| 516 |
– |
* @param v the vector |
| 517 |
– |
*/ |
| 518 |
– |
template<typename Real, int Dim> |
| 519 |
– |
inline Vector<Real, Dim> operator *(const SquareMatrix<Real, Dim>& m, |
| 520 |
– |
const SquareMatrix<Real, Dim>& v) { |
| 521 |
– |
Vector<Real, Dim> result; |
| 522 |
– |
|
| 523 |
– |
for (unsigned int i = 0; i < Dim ; i++) |
| 524 |
– |
for (unsigned int j = 0; j < Dim ; j++) |
| 525 |
– |
result[i] += m(i, j) * v[j]; |
| 526 |
– |
|
| 527 |
– |
return result; |
| 528 |
– |
} |
| 149 |
|
} |
| 150 |
|
#endif //MATH_SQUAREMATRIX_HPP |