Class for computation of data on cell and side. More...

#include <element_values.hh>

Collaboration diagram for ElementValues< spacedim >:

[legend]

Public Member Functions
	ElementValues (Quadrature &_quadrature, UpdateFlags _flags, unsigned int dim)
	Constructor. More...

	~ElementValues ()
	Correct deallocation of objects created by 'initialize' methods. More...

void	reinit (const ElementAccessor< spacedim > &cell)
	Update cell-dependent data (gradients, Jacobians etc.) More...

void	reinit (const Side &cell_side)
	Update side-dependent data (Jacobians etc.) More...

UpdateFlags	update_each (UpdateFlags flags)
	Determine quantities to be recomputed on each cell. More...

double	determinant (const unsigned int point_no) const
	Return the relative volume change of the cell (Jacobian determinant). More...

arma::mat	jacobian (const unsigned int point_no) const
	Return Jacobian matrix at point `point_no`. More...

arma::mat	inverse_jacobian (const unsigned int point_no) const
	Return inverse Jacobian matrix at point `point_no`. More...

double	JxW (const unsigned int point_no) const
	Return the product of Jacobian determinant and the quadrature weight at given quadrature point. More...

double	side_JxW (const unsigned int point_no) const
	Return the product of side Jacobian determinant and the quadrature weight at given quadrature point. More...

arma::vec::fixed< spacedim >	point (const unsigned int point_no) const
	Return coordinates of the quadrature point in the actual cell system. More...

const Armor::array &	point_list () const
	Return coordinates of all quadrature points in the actual cell system. More...

arma::vec::fixed< spacedim >	normal_vector (unsigned int point_no)
	Returns the normal vector to a side at given quadrature point. More...

unsigned int	n_points ()
	Returns the number of quadrature points. More...

const ElementAccessor< spacedim > &	cell () const
	Return cell at which the values were reinited. More...

const Side &	side () const
	Return cell side where the values were reinited. More...

Protected Member Functions
RefElementData *	init_ref_data (const Quadrature &q)
	Precompute data on reference element. More...

template<unsigned int dim>
void	fill_data ()
	Compute data from reference cell and using MappingP1. More...

template<unsigned int dim>
void	fill_side_data ()
	Calculates the mapping data on a side of a cell. More...

Protected Attributes
const unsigned int	dim_
	Dimension of space of reference cell. More...

const unsigned int	n_points_
	Number of integration points. More...

const unsigned int	n_sides_
	Number of sides in reference cell. More...

RefElementData *	ref_data
	Data on reference element. More...

std::vector< RefElementData * >	side_ref_data
	Data on reference element (for each side ). More...

ElementData< spacedim >	data
	Data computed by the mapping. More...

Detailed Description

template<unsigned int spacedim>
class ElementValues< spacedim >

Class for computation of data on cell and side.

Definition at line 128 of file element_values.hh.

Constructor & Destructor Documentation

◆ ElementValues()

template<unsigned int spacedim>

ElementValues< spacedim >::ElementValues	(	Quadrature &	_quadrature,
		UpdateFlags	_flags,
		unsigned int	dim
	)

Constructor.

Initializes structures and calculates cell-independent data. The quadrature can have dimension either dim or dim-1 (for values on side). In the later case also normal vectors and side jacobians are computed.

Parameters

_quadrature	The quadrature rule.
_flags	The update flags.
dim	Dimension of space of reference cell.

Definition at line 160 of file element_values.cc.

◆ ~ElementValues()

template<unsigned int spacedim>

ElementValues< spacedim >::~ElementValues

Correct deallocation of objects created by 'initialize' methods.

Definition at line 206 of file element_values.cc.

Member Function Documentation

◆ cell()

template<unsigned int spacedim>

const ElementAccessor<spacedim>& ElementValues< spacedim >::cell ( ) const

inline

Return cell at which the values were reinited.

Definition at line 260 of file element_values.hh.

◆ determinant()

template<unsigned int spacedim>

double ElementValues< spacedim >::determinant ( const unsigned int point_no ) const

inline

Return the relative volume change of the cell (Jacobian determinant).

If dim==spacedim then the sign may be negative, otherwise the result is a positive number.

Parameters

point_no Number of the quadrature point.

Definition at line 182 of file element_values.hh.

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◆ fill_data()

template<unsigned int spacedim>

template<unsigned int dim>

void ElementValues< spacedim >::fill_data

protected

Compute data from reference cell and using MappingP1.

Definition at line 274 of file element_values.cc.

◆ fill_side_data()

template<unsigned int spacedim>

template<unsigned int dim>

void ElementValues< spacedim >::fill_side_data

protected

Calculates the mapping data on a side of a cell.

Definition at line 351 of file element_values.cc.

◆ init_ref_data()

template<unsigned int spacedim>

RefElementData * ElementValues< spacedim >::init_ref_data ( const Quadrature & q )

protected

Precompute data on reference element.

Definition at line 98 of file element_values.cc.

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◆ inverse_jacobian()

template<unsigned int spacedim>

arma::mat ElementValues< spacedim >::inverse_jacobian ( const unsigned int point_no ) const

inline

Return inverse Jacobian matrix at point point_no.

Definition at line 196 of file element_values.hh.

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◆ jacobian()

template<unsigned int spacedim>

arma::mat ElementValues< spacedim >::jacobian ( const unsigned int point_no ) const

inline

Return Jacobian matrix at point point_no.

Definition at line 189 of file element_values.hh.

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◆ JxW()

template<unsigned int spacedim>

double ElementValues< spacedim >::JxW ( const unsigned int point_no ) const

inline

Return the product of Jacobian determinant and the quadrature weight at given quadrature point.

Parameters

point_no Number of the quadrature point.

Definition at line 208 of file element_values.hh.

◆ n_points()

template<unsigned int spacedim>

unsigned int ElementValues< spacedim >::n_points ( )

inline

Returns the number of quadrature points.

Definition at line 256 of file element_values.hh.

◆ normal_vector()

template<unsigned int spacedim>

arma::vec::fixed<spacedim> ElementValues< spacedim >::normal_vector ( unsigned int point_no )

inline

Returns the normal vector to a side at given quadrature point.

Parameters

point_no Number of the quadrature point.

Definition at line 249 of file element_values.hh.

◆ point()

template<unsigned int spacedim>

arma::vec::fixed<spacedim> ElementValues< spacedim >::point ( const unsigned int point_no ) const

inline

Return coordinates of the quadrature point in the actual cell system.

Parameters

point_no Number of the quadrature point.

Definition at line 231 of file element_values.hh.

◆ point_list()

template<unsigned int spacedim>

const Armor::array& ElementValues< spacedim >::point_list ( ) const

inline

Return coordinates of all quadrature points in the actual cell system.

Definition at line 238 of file element_values.hh.

◆ reinit() [1/2]

template<unsigned int spacedim>

void ElementValues< spacedim >::reinit ( const ElementAccessor< spacedim > & cell )

Update cell-dependent data (gradients, Jacobians etc.)

Parameters

cell	The actual cell.

Definition at line 216 of file element_values.cc.

◆ reinit() [2/2]

template<unsigned int spacedim>

void ElementValues< spacedim >::reinit ( const Side & cell_side )

Update side-dependent data (Jacobians etc.)

Parameters

cell_side The actual cell and side.

Definition at line 245 of file element_values.cc.

◆ side()

template<unsigned int spacedim>

const Side& ElementValues< spacedim >::side ( ) const

inline

Return cell side where the values were reinited.

Definition at line 264 of file element_values.hh.

◆ side_JxW()

template<unsigned int spacedim>

double ElementValues< spacedim >::side_JxW ( const unsigned int point_no ) const

inline

Return the product of side Jacobian determinant and the quadrature weight at given quadrature point.

Parameters

point_no Number of the quadrature point.

Definition at line 220 of file element_values.hh.

◆ update_each()

template<unsigned int spacedim>

UpdateFlags ElementValues< spacedim >::update_each ( UpdateFlags flags )

Determine quantities to be recomputed on each cell.

Parameters

flags Flags that indicate what has to be recomputed.

Definition at line 134 of file element_values.cc.

Member Data Documentation

◆ data

template<unsigned int spacedim>

ElementData<spacedim> ElementValues< spacedim >::data

protected

Data computed by the mapping.

Definition at line 300 of file element_values.hh.

◆ dim_

template<unsigned int spacedim>

const unsigned int ElementValues< spacedim >::dim_

protected

Dimension of space of reference cell.

Definition at line 285 of file element_values.hh.

◆ n_points_

template<unsigned int spacedim>

const unsigned int ElementValues< spacedim >::n_points_

protected

Number of integration points.

Definition at line 288 of file element_values.hh.

◆ n_sides_

template<unsigned int spacedim>

const unsigned int ElementValues< spacedim >::n_sides_

protected

Number of sides in reference cell.

Definition at line 291 of file element_values.hh.

◆ ref_data

template<unsigned int spacedim>

RefElementData* ElementValues< spacedim >::ref_data

protected

Data on reference element.

Definition at line 294 of file element_values.hh.

◆ side_ref_data

template<unsigned int spacedim>

std::vector<RefElementData*> ElementValues< spacedim >::side_ref_data

protected

Data on reference element (for each side ).

Definition at line 297 of file element_values.hh.

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

/home/runner/work/flow123d/flow123d/src/fem/element_values.hh
/home/runner/work/flow123d/flow123d/src/fem/element_values.cc

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

template<unsigned int spacedim> class ElementValues< spacedim >

Constructor & Destructor Documentation

◆ ElementValues()

◆ ~ElementValues()

Member Function Documentation

◆ cell()

◆ determinant()

◆ fill_data()

◆ fill_side_data()

◆ init_ref_data()

◆ inverse_jacobian()

◆ jacobian()

◆ JxW()

◆ n_points()

◆ normal_vector()

◆ point()

◆ point_list()

◆ reinit() [1/2]

◆ reinit() [2/2]

◆ side()

◆ side_JxW()

◆ update_each()

Member Data Documentation

◆ data

◆ dim_

◆ n_points_

◆ n_sides_

◆ ref_data

◆ side_ref_data

template<unsigned int spacedim>
class ElementValues< spacedim >