#include <deal.II/matrix_free/fe_evaluation.h>

Inheritance diagram for FEEvaluationAccess< 1, 1, Number >:

Public Member Functions
value_type	get_dof_value (const unsigned int dof) const

void	submit_dof_value (const value_type val_in, const unsigned int dof)

value_type	get_value (const unsigned int q_point) const

void	submit_value (const value_type val_in, const unsigned int q_point)

gradient_type	get_gradient (const unsigned int q_point) const

void	submit_gradient (const gradient_type grad_in, const unsigned int q_point)

Tensor< 2, 1, VectorizedArray< Number > >	get_hessian (unsigned int q_point) const

gradient_type	get_hessian_diagonal (const unsigned int q_point) const

value_type	get_laplacian (const unsigned int q_point) const

value_type	integrate_value () const

Public Member Functions inherited from FEEvaluationBase< 1, 1, Number >
	~FEEvaluationBase ()

void	reinit (const unsigned int cell)

void	reinit (const TriaIterator< DoFCellAccessor< DoFHandlerType, level_dof_access > > &cell)

void	reinit (const typename Triangulation< dim >::cell_iterator &cell)

unsigned int	get_cell_data_number () const

internal::MatrixFreeFunctions::CellType	get_cell_type () const

const internal::MatrixFreeFunctions::ShapeInfo< Number > &	get_shape_info () const

void	fill_JxW_values (AlignedVector< VectorizedArray< Number > > &JxW_values) const

void	read_dof_values (const VectorType &src, const unsigned int first_index=0)

void	read_dof_values_plain (const VectorType &src, const unsigned int first_index=0)

void	distribute_local_to_global (VectorType &dst, const unsigned int first_index=0) const

void	set_dof_values (VectorType &dst, const unsigned int first_index=0) const

value_type	get_dof_value (const unsigned int dof) const

void	submit_dof_value (const value_type val_in, const unsigned int dof)

value_type	get_value (const unsigned int q_point) const

void	submit_value (const value_type val_in, const unsigned int q_point)

gradient_type	get_gradient (const unsigned int q_point) const

void	submit_gradient (const gradient_type grad_in, const unsigned int q_point)

Tensor< 1, n_components_, Tensor< 2, dim, VectorizedArray< Number > > >	get_hessian (const unsigned int q_point) const

gradient_type	get_hessian_diagonal (const unsigned int q_point) const

value_type	get_laplacian (const unsigned int q_point) const

VectorizedArray< Number >	get_divergence (const unsigned int q_point) const

SymmetricTensor< 2, dim, VectorizedArray< Number > >	get_symmetric_gradient (const unsigned int q_point) const

Tensor< 1,(dim==2?1:dim), VectorizedArray< Number > >	get_curl (const unsigned int q_point) const

void	submit_divergence (const VectorizedArray< Number > div_in, const unsigned int q_point)

void	submit_symmetric_gradient (const SymmetricTensor< 2, dim, VectorizedArray< Number > > grad_in, const unsigned int q_point)

void	submit_curl (const Tensor< 1, dim==2?1:dim, VectorizedArray< Number > > curl_in, const unsigned int q_point)

value_type	integrate_value () const

VectorizedArray< Number >	JxW (const unsigned int q_point) const

const VectorizedArray< Number > *	begin_dof_values () const

VectorizedArray< Number > *	begin_dof_values ()

const VectorizedArray< Number > *	begin_values () const

VectorizedArray< Number > *	begin_values ()

const VectorizedArray< Number > *	begin_gradients () const

VectorizedArray< Number > *	begin_gradients ()

const VectorizedArray< Number > *	begin_hessians () const

VectorizedArray< Number > *	begin_hessians ()

const std::vector< unsigned int > &	get_internal_dof_numbering () const

ArrayView< VectorizedArray< Number > >	get_scratch_data () const

Protected Member Functions
	FEEvaluationAccess (const MatrixFree< 1, Number > &matrix_free, const unsigned int fe_no, const unsigned int quad_no, const unsigned int fe_degree, const unsigned int n_q_points)

template<int n_components_other>
	FEEvaluationAccess (const Mapping< 1 > &mapping, const FiniteElement< 1 > &fe, const Quadrature< 1 > &quadrature, const UpdateFlags update_flags, const unsigned int first_selected_component, const FEEvaluationBase< 1, n_components_other, Number > *other)

	FEEvaluationAccess (const FEEvaluationAccess &other)

FEEvaluationAccess &	operator= (const FEEvaluationAccess &other)

Protected Member Functions inherited from FEEvaluationBase< 1, 1, Number >
	FEEvaluationBase (const MatrixFree< dim, Number > &matrix_free, const unsigned int fe_no, const unsigned int quad_no, const unsigned int fe_degree, const unsigned int n_q_points)

	FEEvaluationBase (const Mapping< dim > &mapping, const FiniteElement< dim > &fe, const Quadrature< 1 > &quadrature, const UpdateFlags update_flags, const unsigned int first_selected_component, const FEEvaluationBase< dim, n_components_other, Number > *other)

	FEEvaluationBase (const FEEvaluationBase &other)

void	read_dof_values_plain (const VectorType *src_data[])

FEEvaluationBase &	operator= (const FEEvaluationBase &other)

void	read_write_operation (const VectorOperation &operation, VectorType *vectors[]) const

Additional Inherited Members
Protected Attributes inherited from FEEvaluationBase< 1, 1, Number >
AlignedVector< VectorizedArray< Number > > *	scratch_data_array

VectorizedArray< Number > *	scratch_data

VectorizedArray< Number > *	values_dofs [n_components]

VectorizedArray< Number > *	values_quad [n_components]

VectorizedArray< Number > *	gradients_quad [n_components][dim]

VectorizedArray< Number > *	hessians_quad [n_components][(dim *(dim+1))/2]

const unsigned int	quad_no

const unsigned int	n_fe_components

const unsigned int	active_fe_index

const unsigned int	active_quad_index

const MatrixFree< dim, Number > *	matrix_info

const internal::MatrixFreeFunctions::DoFInfo *	dof_info

const internal::MatrixFreeFunctions::MappingInfo< dim, Number > *	mapping_info

const internal::MatrixFreeFunctions::ShapeInfo< Number > *	data

const Tensor< 1, dim, VectorizedArray< Number > > *	cartesian_data

const Tensor< 2, dim, VectorizedArray< Number > > *	jacobian

const VectorizedArray< Number > *	J_value

const VectorizedArray< Number > *	quadrature_weights

const Point< dim, VectorizedArray< Number > > *	quadrature_points

const Tensor< 2, dim, VectorizedArray< Number > > *	jacobian_grad

const Tensor< 1,(dim >1?dim (dim-1)/2:1), Tensor< 1, dim, VectorizedArray< Number > > >	jacobian_grad_upper

unsigned int	cell

internal::MatrixFreeFunctions::CellType	cell_type

unsigned int	cell_data_number

bool	dof_values_initialized

bool	values_quad_initialized

bool	gradients_quad_initialized

bool	hessians_quad_initialized

bool	values_quad_submitted

bool	gradients_quad_submitted

std_cxx1x::shared_ptr< internal::MatrixFreeFunctions::MappingDataOnTheFly< dim, Number > >	mapped_geometry

std::vector< types::global_dof_index >	old_style_dof_indices

const unsigned int	first_selected_component

std::vector< types::global_dof_index >	local_dof_indices

Detailed Description

template<typename Number>
class FEEvaluationAccess< 1, 1, Number >

This class provides access to the data fields of the FEEvaluation classes. Partial specialization for scalar fields in 1d that defines access with simple data fields, i.e., scalars for the values and Tensor<1,1> for the gradients.

Author: Katharina Kormann and Martin Kronbichler, 2010, 2011, Shiva Rudraraju, 2014

Definition at line 1313 of file fe_evaluation.h.

Constructor & Destructor Documentation

◆ FEEvaluationAccess() [1/3]

template<typename Number >

FEEvaluationAccess< 1, 1, Number >::FEEvaluationAccess	(	const MatrixFree< 1, Number > &	matrix_free,
		const unsigned int	fe_no,
		const unsigned int	quad_no,
		const unsigned int	fe_degree,
		const unsigned int	n_q_points
	)

protected

Constructor. Made protected to avoid initialization in user code. Takes all data stored in MatrixFree. If applied to problems with more than one finite element or more than one quadrature formula selected during construction of matrix_free, fe_no and quad_no allow to select the appropriate components.

◆ FEEvaluationAccess() [2/3]

template<typename Number >

template<int n_components_other>

FEEvaluationAccess< 1, 1, Number >::FEEvaluationAccess	(	const Mapping< 1 > &	mapping,
		const FiniteElement< 1 > &	fe,
		const Quadrature< 1 > &	quadrature,
		const UpdateFlags	update_flags,
		const unsigned int	first_selected_component,
		const FEEvaluationBase< 1, n_components_other, Number > *	other
	)

protected

Constructor with reduced functionality for similar usage of FEEvaluation as FEValues, including matrix assembly.

◆ FEEvaluationAccess() [3/3]

template<typename Number >

FEEvaluationAccess< 1, 1, Number >::FEEvaluationAccess ( const FEEvaluationAccess< 1, 1, Number > & other )

protected

Copy constructor

Member Function Documentation

◆ get_dof_value()

template<typename Number >

value_type FEEvaluationAccess< 1, 1, Number >::get_dof_value ( const unsigned int dof ) const

Return the value stored for the local degree of freedom with index dof. If the object is vector-valued, a vector-valued return argument is given. Note that when vectorization is enabled, values from several cells are grouped together. If set_dof_values was called last, the value corresponds to the one set there. If integrate was called last, it instead corresponds to the value of the integrated function with the test function of the given index.

◆ submit_dof_value()

template<typename Number >

void FEEvaluationAccess< 1, 1, Number >::submit_dof_value	(	const value_type	val_in,
		const unsigned int	dof
	)

Write a value to the field containing the degrees of freedom with component dof. Access to the same field as through get_dof_value.

◆ get_value()

template<typename Number >

value_type FEEvaluationAccess< 1, 1, Number >::get_value ( const unsigned int q_point ) const

Return the value of a finite element function at quadrature point number q_point after a call to evaluate(true,...), or the value that has been stored there with a call to submit_value. If the object is vector-valued, a vector-valued return argument is given. Note that when vectorization is enabled, values from several cells are grouped together.

◆ submit_value()

template<typename Number >

void FEEvaluationAccess< 1, 1, Number >::submit_value	(	const value_type	val_in,
		const unsigned int	q_point
	)

Write a value to the field containing the values on quadrature points with component q_point. Access to the same field as through get_value. If applied before the function integrate(true,...) is called, this specifies the value which is tested by all basis function on the current cell and integrated over.

◆ get_gradient()

template<typename Number >

gradient_type FEEvaluationAccess< 1, 1, Number >::get_gradient ( const unsigned int q_point ) const

Return the gradient of a finite element function at quadrature point number q_point after a call to evaluate(...,true,...), or the value that has been stored there with a call to submit_gradient.

◆ submit_gradient()

template<typename Number >

void FEEvaluationAccess< 1, 1, Number >::submit_gradient	(	const gradient_type	grad_in,
		const unsigned int	q_point
	)

Write a contribution that is tested by the gradient to the field containing the values on quadrature points with component q_point. Access to the same field as through get_gradient. If applied before the function integrate(...,true) is called, this specifies what is tested by all basis function gradients on the current cell and integrated over.

◆ get_hessian()

template<typename Number >

Tensor<2,1,VectorizedArray<Number> > FEEvaluationAccess< 1, 1, Number >::get_hessian ( unsigned int q_point ) const

Return the Hessian of a finite element function at quadrature point number q_point after a call to evaluate(...,true). If only the diagonal part of the Hessian or its trace, the Laplacian, are needed, use the respective functions below.

◆ get_hessian_diagonal()

template<typename Number >

gradient_type FEEvaluationAccess< 1, 1, Number >::get_hessian_diagonal ( const unsigned int q_point ) const

Return the diagonal of the Hessian of a finite element function at quadrature point number q_point after a call to evaluate(...,true).

◆ get_laplacian()

template<typename Number >

value_type FEEvaluationAccess< 1, 1, Number >::get_laplacian ( const unsigned int q_point ) const

Return the Laplacian of a finite element function at quadrature point number q_point after a call to evaluate(...,true).

◆ integrate_value()

template<typename Number >

value_type FEEvaluationAccess< 1, 1, Number >::integrate_value ( ) const

Takes values on quadrature points, multiplies by the Jacobian determinant and quadrature weights (JxW) and sums the values for all quadrature points on the cell. The result is a scalar, representing the integral over the function over the cell. If a vector-element is used, the resulting components are still separated. Moreover, if vectorization is enabled, the integral values of several cells are represented together.

◆ operator=()

template<typename Number >

FEEvaluationAccess& FEEvaluationAccess< 1, 1, Number >::operator= ( const FEEvaluationAccess< 1, 1, Number > & other )

protected

Copy assignment operator

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

deal.II/matrix_free/fe_evaluation.h

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

template<typename Number> class FEEvaluationAccess< 1, 1, Number >

Constructor & Destructor Documentation

◆ FEEvaluationAccess() [1/3]

◆ FEEvaluationAccess() [2/3]

◆ FEEvaluationAccess() [3/3]

Member Function Documentation

◆ get_dof_value()

◆ submit_dof_value()

◆ get_value()

◆ submit_value()

◆ get_gradient()

◆ submit_gradient()

◆ get_hessian()

◆ get_hessian_diagonal()

◆ get_laplacian()

◆ integrate_value()

◆ operator=()

template<typename Number>
class FEEvaluationAccess< 1, 1, Number >