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.

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

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

set_value(*args, **kwargs)¶

Overloaded function.

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

user_subdomain(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

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.

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

Doc

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.

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

entity_closure_dofs(*args, **kwargs)¶

Overloaded function.

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

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

tabulate_local_to_global_dofs(self: dolfin.cpp.fem.GenericDofMap, arg0: List[int]) -> None
tabulate_local_to_global_dofs(self: dolfin.cpp.fem.GenericDofMap) -> numpy.ndarray[uint64]

class dolfin.cpp.fem.LinearVariationalSolver¶

Bases: dolfin.cpp.common.Variable

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.

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

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

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

Overloaded function.

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’].

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

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

Overloaded function.

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

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
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.

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

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

Overloaded function.

dof_to_vertex_map(arg0: dolfin.cpp.function.FunctionSpace) -> List[int]
dof_to_vertex_map(arg0: object) -> numpy.ndarray[uint64]

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

Overloaded function.

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

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

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