MultiMeshDirichletBC

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

Bases: object

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

Copy constructor. Either cached DOF data are copied. Arguments bc (MultiMeshDirichletBC ) The object to be copied.

Parameters:MultiMeshDirichletBC & bc (const) –

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

homogenize()

Set value to 0.0.

Return type:void

thisown

The membership flag

zero()

Zero the rows in a matrix A corresponding to boundary dofs

Parameters:& A (GenericMatrix) – (GenericMatrix ) The matrix to zero rows in. Return type:void