MultiMeshDirichletBC¶

class dolfin.cpp.fem.MultiMeshDirichletBC(*args)¶

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

Create boundary condition for subdomain specified by index

Parameters:

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

apply()¶

Apply boundary condition to vectors for a nonlinear problem

Parameters:	& b (GenericVector) – (`GenericVector` ) The vector to apply boundary conditions to. GenericVector & x (const) – (`GenericVector` ) Another vector (nonlinear problem).
Return type:	void