dolfin::MultiMeshDirichletBC Class Reference

#include <MultiMeshDirichletBC.h>

Public Member Functions
	MultiMeshDirichletBC (std::shared_ptr< const MultiMeshFunctionSpace > V, std::shared_ptr< const GenericFunction > g, std::shared_ptr< const SubDomain > sub_domain, std::string method="topological", bool check_midpoint=true, bool exclude_overlapped_boundaries=true)
	MultiMeshDirichletBC (std::shared_ptr< const MultiMeshFunctionSpace > V, std::shared_ptr< const GenericFunction > g, std::shared_ptr< const SubDomain > sub_domain, std::size_t part, std::string method="topological", bool check_midpoint=true, bool exclude_overlapped_boundaries=true)
	MultiMeshDirichletBC (std::shared_ptr< const MultiMeshFunctionSpace > V, std::shared_ptr< const GenericFunction > g, std::shared_ptr< const MeshFunction< std::size_t >> sub_domains, std::size_t sub_domain, std::size_t part, std::string method="topological")
	MultiMeshDirichletBC (const MultiMeshDirichletBC &bc)
	~MultiMeshDirichletBC ()
	Destructor.
std::shared_ptr< const MultiMeshFunctionSpace >	function_space () const
std::shared_ptr< DirichletBC >	view (std::size_t part) const
void	apply (GenericMatrix &A) const
void	apply (GenericVector &b) const
void	apply (GenericMatrix &A, GenericVector &b) const
void	apply (GenericVector &b, const GenericVector &x) const
void	apply (GenericMatrix &A, GenericVector &b, const GenericVector &x) const
void	zero (GenericMatrix &A) const
void	homogenize ()
	Set value to 0.0.

Detailed Description

This class is used to set Dirichlet boundary conditions for multimesh function spaces.

Constructor & Destructor Documentation

MultiMeshDirichletBC() [1/4]

MultiMeshDirichletBC::MultiMeshDirichletBC	(	std::shared_ptr< const MultiMeshFunctionSpace >	V,
		std::shared_ptr< const GenericFunction >	g,
		std::shared_ptr< const SubDomain >	sub_domain,
		std::string	method = "topological",
		bool	check_midpoint = true,
		bool	exclude_overlapped_boundaries = true
	)

Create boundary condition for subdomain

Parameters

V	(MultiMeshFunctionSpace) The function space
g	(GenericFunction) The value
sub_domain	(SubDomain) The subdomain
method	(std::string) Option passed to DirichletBC.
check_midpoint	(bool) Option passed to DirichletBC.
exclude_overlapped_boundaries	(bool) If true, then the variable on_boundary will be set to false for facets that are overlapped by another mesh (irrespective of the layering order of the meshes).

MultiMeshDirichletBC() [2/4]

MultiMeshDirichletBC::MultiMeshDirichletBC	(	std::shared_ptr< const MultiMeshFunctionSpace >	V,
		std::shared_ptr< const GenericFunction >	g,
		std::shared_ptr< const SubDomain >	sub_domain,
		std::size_t	part,
		std::string	method = "topological",
		bool	check_midpoint = true,
		bool	exclude_overlapped_boundaries = true
	)

Create boundary condition for subdomain on specified part

Parameters

V	(MultiMeshFunctionSpace) The function space
g	(GenericFunction) The value
sub_domain	(SubDomain) The subdomain
part	(std::size_t) The part on which to set boundary conditions
method	(std::string) Option passed to DirichletBC.
check_midpoint	(bool) Option passed to DirichletBC.
exclude_overlapped_boundaries	(bool) If true, then the variable on_boundary will be set to false for facets that are overlapped by another mesh (irrespective of the layering order of the meshes).

MultiMeshDirichletBC() [3/4]

MultiMeshDirichletBC::MultiMeshDirichletBC	(	std::shared_ptr< const MultiMeshFunctionSpace >	V,
		std::shared_ptr< const GenericFunction >	g,
		std::shared_ptr< const MeshFunction< std::size_t >>	sub_domains,
		std::size_t	sub_domain,
		std::size_t	part,
		std::string	method = "topological"
	)

Create boundary condition for subdomain specified by index

Parameters

V	(FunctionSpace) The function space.
g	(GenericFunction) The value.
sub_domains	(MeshFunction <std::size_t>) Subdomain markers
sub_domain	(std::size_t) The subdomain index (number)
part	(std::size_t) The part on which to set boundary conditions
method	(std::string) Optional argument: A string specifying the method to identify dofs.

MultiMeshDirichletBC() [4/4]

MultiMeshDirichletBC::MultiMeshDirichletBC

(

const MultiMeshDirichletBC &

bc

)

Copy constructor. Either cached DOF data are copied.

Arguments bc (MultiMeshDirichletBC) The object to be copied.

Member Function Documentation

apply() [1/5]

void MultiMeshDirichletBC::apply

(

GenericMatrix &

A

)

const

Apply boundary condition to a matrix

Parameters

A	(GenericMatrix) The matrix to apply boundary condition to.

apply() [2/5]

void MultiMeshDirichletBC::apply

(

GenericVector &

b

)

const

Apply boundary condition to a vector

Parameters

b	(GenericVector) The vector to apply boundary condition to.

apply() [3/5]

void MultiMeshDirichletBC::apply	(	GenericMatrix &	A,
		GenericVector &	b
	)		const

Apply boundary condition to a linear system

Parameters

A	(GenericMatrix) The matrix to apply boundary condition to.
b	(GenericVector) The vector to apply boundary condition to.

apply() [4/5]

void MultiMeshDirichletBC::apply	(	GenericVector &	b,
		const GenericVector &	x
	)		const

Apply boundary condition to vectors for a nonlinear problem

Parameters

b	(GenericVector) The vector to apply boundary conditions to.
x	(GenericVector) Another vector (nonlinear problem).

apply() [5/5]

void MultiMeshDirichletBC::apply	(	GenericMatrix &	A,
		GenericVector &	b,
		const GenericVector &	x
	)		const

Apply boundary condition to a linear system for a nonlinear problem

Parameters

A	(GenericMatrix) The matrix to apply boundary conditions to.
b	(GenericVector) The vector to apply boundary conditions to.
x	(GenericVector) Another vector (nonlinear problem).

function_space()

std::shared_ptr<const MultiMeshFunctionSpace> dolfin::MultiMeshDirichletBC::function_space ( ) const

inline

Return multimesh function space V

Returns

FunctionSpace The multimesh function space to which boundary conditions are applied.

view()

std::shared_ptr<DirichletBC> dolfin::MultiMeshDirichletBC::view ( std::size_t  part ) const

inline

Return a view of boundary conditions on a part of the multimesh

Parameters

part	(std::size_t) The part number

zero()

void MultiMeshDirichletBC::zero

(

GenericMatrix &

A

)

const

Zero the rows in a matrix A corresponding to boundary dofs

Parameters

A	(GenericMatrix) The matrix to zero rows in.

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

• /home/fenics/shared/dolfin/dolfin/fem/MultiMeshDirichletBC.h
• /home/fenics/shared/dolfin/dolfin/fem/MultiMeshDirichletBC.cpp