#include <element.hh>

Inheritance diagram for concepts::ElementMatrix< F >:

Public Types
typedef F	value_type

Public Member Functions
	ElementMatrix (const uint m=0, const uint n=0)

	ElementMatrix (const uint m, const uint n, const F *data)

ElementMatrix< F > &	operator= (const ElementMatrixBase< F > &A)
	Assignement operator.

void	add (const ElementMatrix< F > &A, uint offm=0, uint offn=0)
	Addition of another element matrix with possible offset.

const F &	operator() (const uint i, const uint j) const
	Returns element (i, j)

F &	operator() (const uint i, const uint j)

template<class G >
ElementMatrix< F > &	operator= (const ElementMatrix< G > &other)

virtual ElementMatrix< F > &	operator= (const F &v)

virtual void	resize (uint m, uint n)

template<uint dim>
void	writeColumn (uint col, const Point< F, dim > &val)
	Writes a vector to a column in case of m() >= dim.

void	writeColumn (uint col, const Array< F > &val)
	Writes an array to a column.

void	writeColumn (uint col, const F val)
	Writes a value to a column in case of m() >= 1.

bool	transpose ()

void	setTranspose (bool t)

int	getIndex () const

void	setIndex (int i)

void	zeros ()
	Fills the matrix with zeros.

	operator F* ()
	Returns a pointer to the data array.

ElementMatrix< F > &	operator*= (const F n)
	Scaling operator.

uint	row () const
	Returns current row.

uint	col () const
	Returns current column.

void	compress (const Real threshold=EPS)

std::ostream &	info (std::ostream &os) const

uint	m () const
	Returns the number of rows.

uint	n () const
	Returns the number of columns.

uint	size () const
	Returns the number of entries in the matrix.

	operator const F * () const
	Returns a pointer to the data array.

const Array< F > &	getData () const
	Returns the data array

bool	isTranspose () const

bool	storeMatlab (const std::string filename, std::string name="", bool append=false) const

Protected Attributes
Array< F >	data_
	Data.

uint	m_
	Number of rows.

uint	n_
	Number of columns.

bool	t_
	Transpose.

Detailed Description

template<class F>
class concepts::ElementMatrix< F >

Element matrix. This class stores the element matrix computed by a bilinear form. These matrices are assembled in a later step.

Author: Philipp Frauenfelder, 2001

Examples: linearFEM1d-simple.cc, and linearFEM1d.cc.

Definition at line 206 of file element.hh.

Member Typedef Documentation

◆ value_type

template<class F >

typedef F concepts::ElementMatrix< F >::value_type

Definition at line 208 of file element.hh.

Constructor & Destructor Documentation

◆ ~ElementMatrix()

template<class F >

virtual concepts::ElementMatrix< F >::~ElementMatrix ( )

inlinevirtual

Definition at line 214 of file element.hh.

Member Function Documentation

◆ col()

template<class F >

uint concepts::ElementMatrix< F >::col ( ) const

inline

Returns current column.

Definition at line 309 of file element.hh.

◆ compress()

template<class F >

void concepts::ElementMatrix< F >::compress ( const Real threshold = EPS )

Compresses the matrix by dropping small entries. All matrix entries which are smaller than a certain threshold times the largest entry of the matrix are deleted from the matrix.

◆ getData()

template<class F >

const Array< F > & concepts::ElementMatrixBase< F >::getData ( ) const

inlineinherited

Returns the data array

Definition at line 172 of file element.hh.

◆ getIndex()

template<class F >

int concepts::ElementMatrix< F >::getIndex ( ) const

inline

Deprecated:: : FIXME: what the heck is this even for?

Definition at line 289 of file element.hh.

◆ isTranspose()

template<class F >

bool concepts::ElementMatrixBase< F >::isTranspose ( ) const

inlineinherited

Returns true if the matrix is internally stored as transposed (column-major).

Definition at line 177 of file element.hh.

◆ m()

template<class F >

uint concepts::ElementMatrixBase< F >::m ( ) const

inlineinherited

Returns the number of rows.

Definition at line 151 of file element.hh.

◆ n()

template<class F >

uint concepts::ElementMatrixBase< F >::n ( ) const

inlineinherited

Returns the number of columns.

Definition at line 153 of file element.hh.

◆ operator const F *()

template<class F >

concepts::ElementMatrixBase< F >::operator const F * ( ) const

inlineinherited

Returns a pointer to the data array.

Definition at line 169 of file element.hh.

◆ operator F*()

template<class F >

concepts::ElementMatrix< F >::operator F* ( )

inline

Returns a pointer to the data array.

Definition at line 298 of file element.hh.

◆ operator()() [1/2]

template<class F >

F & concepts::ElementMatrix< F >::operator()	(	const uint	i,
		const uint	j
	)

inline

Definition at line 225 of file element.hh.

◆ operator()() [2/2]

template<class F >

const F & concepts::ElementMatrix< F >::operator()	(	const uint	i,
		const uint	j
	)		const

inline

Returns element (i, j)

Definition at line 222 of file element.hh.

◆ operator*=()

template<class F >

ElementMatrix< F > & concepts::ElementMatrix< F >::operator*= ( const F n )

inline

Scaling operator.

Definition at line 301 of file element.hh.

◆ operator=() [1/2]

template<class F >

template<class G >

ElementMatrix< F > & concepts::ElementMatrix< F >::operator= ( const ElementMatrix< G > & other )

inline

can be used to upcast ElementMatrix<Real> to ElementMatrix<Cmplx>

Definition at line 236 of file element.hh.

◆ operator=() [2/2]

template<class F >

virtual ElementMatrix< F > & concepts::ElementMatrix< F >::operator= ( const F & v )

inlinevirtual

Definition at line 246 of file element.hh.

◆ resize()

template<class F >

virtual void concepts::ElementMatrix< F >::resize	(	uint	m,
		uint	n
	)

virtual

Sets a new size.

Previous data might be lost. The internal storage is set to the default row-major order.

Reimplemented in concepts::DenseMatrix< F >.

Examples: linearFEM1d-simple.cc, and linearFEM1d.cc.

◆ row()

template<class F >

uint concepts::ElementMatrix< F >::row ( ) const

inline

Returns current row.

Definition at line 307 of file element.hh.

◆ setIndex()

template<class F >

void concepts::ElementMatrix< F >::setIndex ( int i )

inline

Deprecated:: : FIXME: what the heck is this even for?

Definition at line 292 of file element.hh.

◆ setTranspose()

template<class F >

void concepts::ElementMatrix< F >::setTranspose ( bool t )

inline

Sets the transpose status to t.

This does not anything if the matrix had the transpose status already. Otherwise, the dimensions are interchanged and the internal storage changes from row-major two column-major order or vice-versa.

Definition at line 286 of file element.hh.

◆ size()

template<class F >

uint concepts::ElementMatrixBase< F >::size ( ) const

inlineinherited

Returns the number of entries in the matrix.

Definition at line 166 of file element.hh.

◆ storeMatlab()

template<class F >

bool concepts::ElementMatrixBase< F >::storeMatlab	(	const std::string	filename,
		std::string	name = `""`,
		bool	append = `false`
	)		const

inherited

Stores the matrix in a Matlab matrix

Parameters

filename	name of the matlab file, with ending '.m'
name	name of the variable, e.g. "A"
append	if false, create new file, otherwise append to it

Returns: true if the writes was successfull

◆ transpose()

template<class F >

bool concepts::ElementMatrix< F >::transpose ( )

inline

Transposes the matrix.

Only the dimensions are interchanged, the data is not touched, but the internal storage changes from row-major two column-major order or vice-versa.

Deprecated:: use isTranspose() and setTranspose()

Definition at line 277 of file element.hh.

◆ writeColumn()

template<class F >

template<uint dim>

void concepts::ElementMatrix< F >::writeColumn	(	uint	col,
		const Point< F, dim > &	val
	)

Writes a vector to a column in case of m() >= dim.

Definition at line 326 of file element.hh.

◆ zeros()

template<class F >

void concepts::ElementMatrix< F >::zeros ( )

inline

Fills the matrix with zeros.

Examples: linearFEM1d-simple.cc, and linearFEM1d.cc.

Definition at line 295 of file element.hh.

Member Data Documentation

◆ data_

template<class F >

Array<F> concepts::ElementMatrixBase< F >::data_

protectedinherited

Data.

Definition at line 189 of file element.hh.

◆ m_

template<class F >

uint concepts::ElementMatrixBase< F >::m_

protectedinherited

Number of rows.

Definition at line 191 of file element.hh.

◆ n_

template<class F >

uint concepts::ElementMatrixBase< F >::n_

protectedinherited

Number of columns.

Definition at line 193 of file element.hh.

◆ t_

template<class F >

bool concepts::ElementMatrixBase< F >::t_

protectedinherited

Transpose.

Definition at line 195 of file element.hh.

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

function/linearForm.hh
space/element.hh

Class documentation of Concepts

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ value_type

Constructor & Destructor Documentation

◆ ~ElementMatrix()

Member Function Documentation

◆ col()

◆ compress()

◆ getData()

◆ getIndex()

◆ isTranspose()

◆ m()

◆ n()

◆ operator const F *()

◆ operator F*()

◆ operator()() [1/2]

◆ operator()() [2/2]

◆ operator*=()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ resize()

◆ row()

◆ setIndex()

◆ setTranspose()

◆ size()

◆ storeMatlab()

◆ transpose()

◆ writeColumn()

◆ zeros()

Member Data Documentation

◆ data_

◆ m_

◆ n_

◆ t_