dolfin.cpp.fem

FEM module

Functions

adapt(*args, **kwargs)	Overloaded function.
assemble(*args, **kwargs)	Overloaded function.
assemble_local(arg0, arg1)
assemble_system(*args, **kwargs)	Overloaded function.
create_mesh(*args, **kwargs)	Overloaded function.
dof_to_vertex_map(*args, **kwargs)	Overloaded function.
get_coordinates(*args, **kwargs)	Overloaded function.
make_ufc_dofmap(arg0)
make_ufc_finite_element(arg0)
make_ufc_form(arg0)
set_coordinates(*args, **kwargs)	Overloaded function.
vertex_to_dof_map(*args, **kwargs)	Overloaded function.

Classes

Assembler	DOLFIN Assembler object
AssemblerBase
DirichletBC	DOLFIN DirichletBC object
DiscreteOperators
DofMap	DOLFIN DofMap object
FiniteElement	DOLFIN FiniteElement object
Form	DOLFIN Form object
GenericDofMap	DOLFIN DofMap object
LinearVariationalProblem
LinearVariationalSolver
LocalSolver
MultiMeshAssembler	DOLFIN MultiMeshAssembler object
MultiMeshDirichletBC	DOLFIN MultiMeshDirichletBC object
MultiMeshDofMap	DOLFIN MultiMeshDofMap object
MultiMeshForm	DOLFIN MultiForm object
NonlinearVariationalProblem
NonlinearVariationalSolver
PETScDMCollection
PointSource
SparsityPatternBuilder
SystemAssembler	DOLFIN SystemAssembler object
ufc_dofmap	UFC dofmap object
ufc_finite_element	UFC finite element object
ufc_form	UFC form object

class dolfin.cpp.fem.Assembler

Bases: dolfin.cpp.fem.AssemblerBase

DOLFIN Assembler object

assemble(self: dolfin.cpp.fem.Assembler, arg0: dolfin::GenericTensor, arg1: dolfin::Form) → None

class dolfin.cpp.fem.DirichletBC

Bases: dolfin.cpp.common.Variable

DOLFIN DirichletBC object

apply(*args, **kwargs)

Overloaded function.

1. apply(self: dolfin.cpp.fem.DirichletBC, arg0: dolfin::GenericVector) -> None

2. apply(self: dolfin.cpp.fem.DirichletBC, arg0: dolfin::GenericMatrix) -> None

3. apply(self: dolfin.cpp.fem.DirichletBC, arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector) -> None

4. apply(self: dolfin.cpp.fem.DirichletBC, arg0: dolfin::GenericVector, arg1: dolfin::GenericVector) -> None

5. apply(self: dolfin.cpp.fem.DirichletBC, arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector, arg2: dolfin::GenericVector) -> None

function_space(self: dolfin.cpp.fem.DirichletBC) → dolfin.cpp.function.FunctionSpace

get_boundary_values(self: dolfin.cpp.fem.DirichletBC) → Dict[int, float]

homogenize(self: dolfin.cpp.fem.DirichletBC) → None

markers(self: dolfin.cpp.fem.DirichletBC) → List[int]

method(self: dolfin.cpp.fem.DirichletBC) → str

set_value(*args, **kwargs)

Overloaded function.

1. set_value(self: dolfin.cpp.fem.DirichletBC, arg0: dolfin.cpp.function.GenericFunction) -> None

2. set_value(self: dolfin.cpp.fem.DirichletBC, arg0: object) -> None

user_sub_domain(self: dolfin.cpp.fem.DirichletBC) → dolfin.cpp.mesh.SubDomain

value(self: dolfin.cpp.fem.DirichletBC) → dolfin.cpp.function.GenericFunction

zero(self: dolfin.cpp.fem.DirichletBC, arg0: dolfin::GenericMatrix) → None

zero_columns(self: dolfin.cpp.fem.DirichletBC, A: dolfin::GenericMatrix, b: dolfin::GenericVector, diagonal_value: float=0.0) → None

class dolfin.cpp.fem.DofMap

Bases: dolfin.cpp.fem.GenericDofMap

DOLFIN DofMap object

cell_dofs(self: dolfin.cpp.fem.DofMap, arg0: int) → numpy.ndarray[int32[m, 1]]

ownership_range(self: dolfin.cpp.fem.DofMap) → Tuple[int, int]

class dolfin.cpp.fem.FiniteElement

Bases: pybind11_builtins.pybind11_object

DOLFIN FiniteElement object

evaluate_basis(self: dolfin.cpp.fem.FiniteElement, arg0: int, arg1: numpy.ndarray[float64], arg2: numpy.ndarray[float64], arg3: int) → numpy.ndarray[float64]

Evaluate basis function i at given point x in cell.

evaluate_basis_all(self: dolfin.cpp.fem.FiniteElement, arg0: numpy.ndarray[float64], arg1: numpy.ndarray[float64], arg2: int) → numpy.ndarray[float64]

Evaluate order n derivatives of all basis functions at given point x in cell.

evaluate_basis_derivatives(self: dolfin.cpp.fem.FiniteElement, arg0: int, arg1: int, arg2: numpy.ndarray[float64], arg3: numpy.ndarray[float64], arg4: int) → numpy.ndarray[float64]

Evaluate order n derivatives of basis function i at given point x in cell.

evaluate_basis_derivatives_all(self: dolfin.cpp.fem.FiniteElement, arg0: int, arg1: numpy.ndarray[float64], arg2: numpy.ndarray[float64], arg3: int) → numpy.ndarray[float64]

Evaluate all basis functions at given point x in cell.

evaluate_dofs(self: dolfin.cpp.fem.FiniteElement, arg0: object, arg1: numpy.ndarray[float64], arg2: int, arg3: dolfin.cpp.mesh.Cell) → numpy.ndarray[float64]

Evaluate degrees of freedom on element for a given function

geometric_dimension(self: dolfin.cpp.fem.FiniteElement) → int

num_sub_elements(self: dolfin.cpp.fem.FiniteElement) → int

signature(self: dolfin.cpp.fem.FiniteElement) → str

space_dimension(self: dolfin.cpp.fem.FiniteElement) → int

tabulate_dof_coordinates(self: dolfin.cpp.fem.FiniteElement, arg0: dolfin.cpp.mesh.Cell) → numpy.ndarray[float64[m, n]]

Tabulate coordinates of dofs on cell

value_dimension(self: dolfin.cpp.fem.FiniteElement, arg0: int) → int

class dolfin.cpp.fem.Form

Bases: pybind11_builtins.pybind11_object

DOLFIN Form object

function_space(self: dolfin.cpp.fem.Form, arg0: int) → dolfin.cpp.function.FunctionSpace

Return function space for i-th argument

function_spaces(self: dolfin.cpp.fem.Form) → List[dolfin.cpp.function.FunctionSpace]

Return function spaces for arguments

mesh(self: dolfin.cpp.fem.Form) → dolfin.cpp.mesh.Mesh

num_coefficients(self: dolfin.cpp.fem.Form) → int

Return number of coefficients in form

original_coefficient_position(self: dolfin.cpp.fem.Form, arg0: int) → int

rank(self: dolfin.cpp.fem.Form) → int

set_cell_domains(self: dolfin.cpp.fem.Form, arg0: dolfin.cpp.mesh.MeshFunctionSizet) → None

set_coefficient(*args, **kwargs)

Overloaded function.

1. set_coefficient(self: dolfin.cpp.fem.Form, arg0: int, arg1: dolfin.cpp.function.GenericFunction) -> None

Doc

2. set_coefficient(self: dolfin.cpp.fem.Form, arg0: str, arg1: dolfin.cpp.function.GenericFunction) -> None

Doc

set_exterior_facet_domains(self: dolfin.cpp.fem.Form, arg0: dolfin.cpp.mesh.MeshFunctionSizet) → None

set_interior_facet_domains(self: dolfin.cpp.fem.Form, arg0: dolfin.cpp.mesh.MeshFunctionSizet) → None

set_mesh(self: dolfin.cpp.fem.Form, arg0: dolfin.cpp.mesh.Mesh) → None

set_vertex_domains(self: dolfin.cpp.fem.Form, arg0: dolfin.cpp.mesh.MeshFunctionSizet) → None

class dolfin.cpp.fem.GenericDofMap

Bases: dolfin.cpp.common.Variable

DOLFIN DofMap object

block_size(self: dolfin.cpp.fem.GenericDofMap) → int

cell_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: int) → numpy.ndarray[int32[m, 1]]

clear_sub_map_data(self: dolfin.cpp.fem.GenericDofMap) → None

dofs(*args, **kwargs)

Overloaded function.

1. dofs(self: dolfin.cpp.fem.GenericDofMap) -> List[int]

2. dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: dolfin.cpp.mesh.Mesh, arg1: int) -> List[int]

entity_closure_dofs(*args, **kwargs)

Overloaded function.

1. entity_closure_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: dolfin.cpp.mesh.Mesh, arg1: int) -> List[int]

2. entity_closure_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: dolfin.cpp.mesh.Mesh, arg1: int, arg2: List[int]) -> List[int]

entity_dofs(*args, **kwargs)

Overloaded function.

1. entity_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: dolfin.cpp.mesh.Mesh, arg1: int) -> List[int]

2. entity_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: dolfin.cpp.mesh.Mesh, arg1: int, arg2: List[int]) -> List[int]

global_dimension(self: dolfin.cpp.fem.GenericDofMap) → int

The dimension of the global finite element function space

index_map(self: dolfin.cpp.fem.GenericDofMap) → dolfin::IndexMap

local_to_global_index(self: dolfin.cpp.fem.GenericDofMap, arg0: int) → int

local_to_global_unowned(self: dolfin.cpp.fem.GenericDofMap) → numpy.ndarray[uint64[m, 1]]

Return view into unowned part of local-to-global map

neighbours(self: dolfin.cpp.fem.GenericDofMap) → Set[int]

num_entity_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: int) → int

off_process_owner(self: dolfin.cpp.fem.GenericDofMap) → List[int]

set(self: dolfin.cpp.fem.GenericDofMap, arg0: dolfin::GenericVector, arg1: float) → None

shared_nodes(self: dolfin.cpp.fem.GenericDofMap) → Dict[int, List[int]]

tabulate_entity_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: int, arg1: int) → numpy.ndarray[uint64]

tabulate_local_to_global_dofs(*args, **kwargs)

Overloaded function.

1. tabulate_local_to_global_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: List[int]) -> None

2. tabulate_local_to_global_dofs(self: dolfin.cpp.fem.GenericDofMap) -> numpy.ndarray[uint64]

class dolfin.cpp.fem.LinearVariationalSolver

Bases: dolfin.cpp.common.Variable

default_parameters() → dolfin::Parameters

solve(self: dolfin.cpp.fem.LinearVariationalSolver) → None

class dolfin.cpp.fem.MultiMeshAssembler

Bases: pybind11_builtins.pybind11_object

DOLFIN MultiMeshAssembler object

assemble(self: dolfin.cpp.fem.MultiMeshAssembler, arg0: dolfin::GenericTensor, arg1: dolfin.cpp.fem.MultiMeshForm) → None

class dolfin.cpp.fem.MultiMeshDirichletBC

Bases: pybind11_builtins.pybind11_object

DOLFIN MultiMeshDirichletBC object

apply(*args, **kwargs)

Overloaded function.

1. apply(self: dolfin.cpp.fem.MultiMeshDirichletBC, arg0: dolfin::GenericVector) -> None

2. apply(self: dolfin.cpp.fem.MultiMeshDirichletBC, arg0: dolfin::GenericMatrix) -> None

3. apply(self: dolfin.cpp.fem.MultiMeshDirichletBC, arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector) -> None

4. apply(self: dolfin.cpp.fem.MultiMeshDirichletBC, arg0: dolfin::GenericVector, arg1: dolfin::GenericVector) -> None

5. apply(self: dolfin.cpp.fem.MultiMeshDirichletBC, arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector, arg2: dolfin::GenericVector) -> None

function_space(self: dolfin.cpp.fem.MultiMeshDirichletBC) → dolfin.cpp.function.MultiMeshFunctionSpace

homogenize(self: dolfin.cpp.fem.MultiMeshDirichletBC) → None

zero(self: dolfin.cpp.fem.MultiMeshDirichletBC, arg0: dolfin::GenericMatrix) → None

class dolfin.cpp.fem.MultiMeshDofMap

Bases: pybind11_builtins.pybind11_object

DOLFIN MultiMeshDofMap object

inactive_dofs(self: dolfin.cpp.fem.MultiMeshDofMap, arg0: dolfin.cpp.mesh.MultiMesh, arg1: int) → List[int]

class dolfin.cpp.fem.MultiMeshForm

Bases: pybind11_builtins.pybind11_object

DOLFIN MultiForm object

add(self: dolfin.cpp.fem.MultiMeshForm, arg0: dolfin.cpp.fem.Form) → None

build(self: dolfin.cpp.fem.MultiMeshForm) → None

set_multimesh_coefficient(self: dolfin.cpp.fem.MultiMeshForm, arg0: int, arg1: dolfin.cpp.function.MultiMeshFunction) → None

class dolfin.cpp.fem.NonlinearVariationalSolver

Bases: dolfin.cpp.common.Variable

default_parameters() → dolfin::Parameters

solve(self: dolfin.cpp.fem.NonlinearVariationalSolver) → Tuple[int, bool]

class dolfin.cpp.fem.SystemAssembler

Bases: dolfin.cpp.fem.AssemblerBase

DOLFIN SystemAssembler object

assemble(*args, **kwargs)

Overloaded function.

1. assemble(self: dolfin.cpp.fem.SystemAssembler, arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector) -> None

2. assemble(self: dolfin.cpp.fem.SystemAssembler, arg0: dolfin::GenericMatrix) -> None

3. assemble(self: dolfin.cpp.fem.SystemAssembler, arg0: dolfin::GenericVector) -> None

4. assemble(self: dolfin.cpp.fem.SystemAssembler, arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector, arg2: dolfin::GenericVector) -> None

5. assemble(self: dolfin.cpp.fem.SystemAssembler, arg0: dolfin::GenericVector, arg1: dolfin::GenericVector) -> None

dolfin.cpp.fem.adapt(*args, **kwargs)

Overloaded function.

1. adapt(arg0: dolfin.cpp.mesh.Mesh) -> dolfin.cpp.mesh.Mesh

Mapping between parent and child entities has to be set in refined mesh. See various refinement algorithms and parameters[‘refinement_algorithm’].

2. adapt(arg0: dolfin.cpp.mesh.MeshFunctionSizet, arg1: dolfin.cpp.mesh.Mesh) -> dolfin.cpp.mesh.MeshFunctionSizet

dolfin.cpp.fem.assemble(*args, **kwargs)

Overloaded function.

1. assemble(arg0: dolfin::GenericTensor, arg1: dolfin.cpp.fem.Form) -> None

2. assemble(arg0: dolfin.cpp.fem.Form) -> float

dolfin.cpp.fem.assemble_local(arg0: dolfin.cpp.fem.Form, arg1: dolfin.cpp.mesh.Cell) → numpy.ndarray[float64[m, n]]

dolfin.cpp.fem.assemble_system(*args, **kwargs)

Overloaded function.

1. assemble_system(arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector, arg2: dolfin.cpp.fem.Form, arg3: dolfin.cpp.fem.Form, arg4: List[dolfin.cpp.fem.DirichletBC]) -> None

2. assemble_system(arg0: dolfin::GenericMatrix, arg1: dolfin::GenericVector, arg2: dolfin.cpp.fem.Form, arg3: dolfin.cpp.fem.Form, arg4: List[dolfin.cpp.fem.DirichletBC], arg5: dolfin::GenericVector) -> None

dolfin.cpp.fem.create_mesh(*args, **kwargs)

Overloaded function.

1. create_mesh(arg0: dolfin.cpp.function.Function) -> dolfin.cpp.mesh.Mesh

2. create_mesh(arg0: object) -> dolfin.cpp.mesh.Mesh

dolfin.cpp.fem.dof_to_vertex_map(*args, **kwargs)

Overloaded function.

1. dof_to_vertex_map(arg0: dolfin.cpp.function.FunctionSpace) -> List[int]

2. dof_to_vertex_map(arg0: object) -> numpy.ndarray[uint64]

dolfin.cpp.fem.get_coordinates(*args, **kwargs)

Overloaded function.

1. get_coordinates(arg0: dolfin.cpp.function.Function, arg1: dolfin.cpp.mesh.MeshGeometry) -> None

2. get_coordinates(arg0: object, arg1: dolfin.cpp.mesh.MeshGeometry) -> None

dolfin.cpp.fem.make_ufc_dofmap(arg0: int) → dolfin.cpp.fem.ufc_dofmap

dolfin.cpp.fem.make_ufc_finite_element(arg0: int) → dolfin.cpp.fem.ufc_finite_element

dolfin.cpp.fem.make_ufc_form(arg0: int) → dolfin.cpp.fem.ufc_form

dolfin.cpp.fem.set_coordinates(*args, **kwargs)

Overloaded function.

1. set_coordinates(arg0: dolfin.cpp.mesh.MeshGeometry, arg1: dolfin.cpp.function.Function) -> None

2. set_coordinates(arg0: dolfin.cpp.mesh.MeshGeometry, arg1: object) -> None

class dolfin.cpp.fem.ufc_dofmap

Bases: pybind11_builtins.pybind11_object

UFC dofmap object

class dolfin.cpp.fem.ufc_finite_element

Bases: pybind11_builtins.pybind11_object

UFC finite element object

class dolfin.cpp.fem.ufc_form

Bases: pybind11_builtins.pybind11_object

UFC form object

dolfin.cpp.fem.vertex_to_dof_map(*args, **kwargs)

Overloaded function.

1. vertex_to_dof_map(arg0: dolfin.cpp.function.FunctionSpace) -> numpy.ndarray[int32]

2. vertex_to_dof_map(arg0: object) -> numpy.ndarray[int32]