GooseFEM::Matrix Class Reference

Sparse matrix. More...

#include <GooseFEM/Matrix.h>

Inheritance diagram for GooseFEM::Matrix:

Public Member Functions
	Matrix (const array_type::tensor< size_t, 2 > &conn, const array_type::tensor< size_t, 2 > &dofs)
	Constructor.
const Eigen::SparseMatrix< double > &	data () const
	Pointer to data.
void	set (const array_type::tensor< size_t, 1 > &rows, const array_type::tensor< size_t, 1 > &cols, const array_type::tensor< double, 2 > &matrix)
	Overwrite matrix.
void	add (const array_type::tensor< size_t, 1 > &rows, const array_type::tensor< size_t, 1 > &cols, const array_type::tensor< double, 2 > &matrix)
	Add matrix.
Public Member Functions inherited from GooseFEM::MatrixBase< Matrix >
size_t	nelem () const
	Number of elements.
size_t	nne () const
	Number of nodes per element.
size_t	nnode () const
	Number of nodes.
size_t	ndim () const
	Number of dimensions.
size_t	ndof () const
	Number of DOFs.
const array_type::tensor< size_t, 2 > &	dofs () const
	DOFs per node.
const array_type::tensor< size_t, 2 > &	conn () const
	Connectivity.
std::array< size_t, 1 >	shape_dofval () const
	Shape of "dofval".
std::array< size_t, 2 >	shape_nodevec () const
	Shape of "nodevec".
std::array< size_t, 3 >	shape_elemmat () const
	Shape of "elemmat".
void	assemble (const T &elemmat)
	Assemble from "elemmat".
array_type::tensor< double, 2 >	Todense () const
	Copy as dense matrix.
void	todense (T &ret) const
	Copy to dense matrix.
array_type::tensor< double, 2 >	Dot (const array_type::tensor< double, 2 > &x) const
	Dot-product \( b_i = A_{ij} x_j \).
array_type::tensor< double, 1 >	Dot (const array_type::tensor< double, 1 > &x) const
	Dot-product \( b_i = A_{ij} x_j \).
void	dot (const array_type::tensor< double, 2 > &x, array_type::tensor< double, 2 > &b) const
	Dot-product \( b_i = A_{ij} x_j \).
void	dot (const array_type::tensor< double, 1 > &x, array_type::tensor< double, 1 > &b) const
	Dot-product \( b_i = A_{ij} x_j \).

Friends
template<class >
class	MatrixSolver
	Class to solve the system (allowing single factorisation for multiple right-hand-sides).

Additional Inherited Members
Public Types inherited from GooseFEM::MatrixBase< Matrix >
using	derived_type
	Underlying type.
Protected Attributes inherited from GooseFEM::MatrixBase< Matrix >
array_type::tensor< size_t, 2 >	m_conn
	Connectivity [nelem, nne].
array_type::tensor< size_t, 2 >	m_dofs
	DOF-numbers per node [nnode, ndim].
size_t	m_nelem
	See nelem().
size_t	m_nne
	See nne().
size_t	m_nnode
	See nnode().
size_t	m_ndim
	See ndim().
size_t	m_ndof
	See ndof().
bool	m_changed
	Signal changes to data.

Detailed Description

Sparse matrix.

See GooseFEM::Vector() for bookkeeping definitions.

Definition at line 653 of file Matrix.h.

Constructor & Destructor Documentation

Matrix()

GooseFEM::Matrix::Matrix ( const array_type::tensor< size_t, 2 > & conn, const array_type::tensor< size_t, 2 > & dofs )

inline

Constructor.

Parameters

conn	connectivity [nelem, nne].
dofs	DOFs per node [nnode, ndim].

Definition at line 679 of file Matrix.h.

Member Function Documentation

add()

void GooseFEM::Matrix::add ( const array_type::tensor< size_t, 1 > & rows, const array_type::tensor< size_t, 1 > & cols, const array_type::tensor< double, 2 > & matrix )

inline

Add matrix.

Parameters

rows	Row numbers [m].
cols	Column numbers [n].
matrix	Data entries matrix(i, j) for rows(i), cols(j) [m, n].

Definition at line 767 of file Matrix.h.

data()

const Eigen::SparseMatrix< double > & GooseFEM::Matrix::data ( ) const

inline

Pointer to data.

Definition at line 698 of file Matrix.h.

set()

void GooseFEM::Matrix::set ( const array_type::tensor< size_t, 1 > & rows, const array_type::tensor< size_t, 1 > & cols, const array_type::tensor< double, 2 > & matrix )

inline

Overwrite matrix.

Parameters

rows	Row numbers [m].
cols	Column numbers [n].
matrix	Data entries matrix(i, j) for rows(i), cols(j) [m, n].

Definition at line 738 of file Matrix.h.

Friends And Related Symbol Documentation

MatrixSolver

template<class >

friend class MatrixSolver

friend

Class to solve the system (allowing single factorisation for multiple right-hand-sides).

Definition at line 668 of file Matrix.h.

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The documentation for this class was generated from the following file:

• GooseFEM/Matrix.h