CGAL::Eigen_sparse_symmetric_matrix< T > Struct Template Reference

#include <CGAL/Eigen_matrix.h>

Inherits from

CGAL::Eigen_sparse_matrix< T >.

Definition

The class Eigen_sparse_symmetric_matrix is a wrapper around Eigen matrix type Eigen::SparseMatrix

Since the matrix is symmetric, only the lower triangle part is stored.

Is Model Of:

SparseLinearAlgebraTraits_d::Matrix

Template Parameters

T	Number type.

See also

CGAL::Eigen_vector<T>

CGAL::Eigen_sparse_matrix<T>

Public Member Functions
	Eigen_sparse_symmetric_matrix (int dim)
	Create a square symmetric matrix initialized with zeros. More...
	Eigen_sparse_symmetric_matrix (int rows, int columns)
	Create a square symmetric matrix initialized with zeros. More...
Public Member Functions inherited from CGAL::Eigen_sparse_matrix< T >
	Eigen_sparse_matrix (std::size_t dim, bool is_symmetric=false)
	Create a square matrix initialized with zeros. More...
	Eigen_sparse_matrix (int dim, bool is_symmetric=false)
	Create a square matrix initialized with zeros. More...
	Eigen_sparse_matrix (std::size_t rows, std::size_t columns, bool is_symmetric=false)
	Create a rectangular matrix initialized with zeros. More...
	~Eigen_sparse_matrix ()
	Delete this object and the wrapped matrix.
	Eigen_sparse_matrix (int rows, int columns, bool is_symmetric=false)
	Create a rectangular matrix initialized with zeros. More...
int	row_dimension () const
	Return the matrix number of rows.
int	column_dimension () const
	Return the matrix number of columns.
void	set_coef (std::size_t i_, std::size_t j_, T val, bool new_coef=false)
	Write access to a matrix coefficient: a_ij <- val. More...
void	add_coef (int i, int j, T val)
	Write access to a matrix coefficient: a_ij <- a_ij + val. More...
NT	get_coef (unsigned int i, unsigned int j) const
	Read access to a matrix coefficient. More...
const EigenType &	eigen_object () const
	Return the internal matrix, with type EigenType.

Additional Inherited Members
Public Types inherited from CGAL::Eigen_sparse_matrix< T >
typedef Eigen::SparseMatrix< T >	EigenType
	The internal matrix type from Eigen.
typedef T	NT

Constructor & Destructor Documentation

Eigen_sparse_symmetric_matrix() [1/2]

template<class T >

CGAL::Eigen_sparse_symmetric_matrix< T >::Eigen_sparse_symmetric_matrix

(

int

dim

)

Create a square symmetric matrix initialized with zeros.

Parameters

dim	Matrix dimension.

Eigen_sparse_symmetric_matrix() [2/2]

template<class T >

CGAL::Eigen_sparse_symmetric_matrix< T >::Eigen_sparse_symmetric_matrix	(	int	rows,
		int	columns
	)

Create a square symmetric matrix initialized with zeros.

Precondition

rows == columns.

Parameters

rows	Number of rows.
columns	Number of columns.