dolfinx.cpp.fem¶
FEM module
Functions
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Modify vector for lifted boundary conditions |
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Overloaded function. |
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Overloaded function. |
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Assemble functional over mesh |
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Assemble linear form into an existing Eigen vector |
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Build and dofmap on a mesh. |
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Create CoordinateElement from a pointer to ufc_coordinate_map. |
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Create DofMap object from a pointer to ufc_dofmap. |
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Create ElementDofLayout object from a ufc dofmap. |
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Create Form from a pointer to ufc_form. |
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Create a PETSc Mat for bilinear form. |
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Create monolithic sparse matrix for stacked bilinear forms. |
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Create nested sparse matrix for bilinear forms. |
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Create a sparsity pattern for bilinear form. |
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Create a monolithic vector for multiple (stacked) linear forms. |
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Create nested vector for multiple (stacked) linear forms. |
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Overloaded function. |
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Overloaded function. |
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Overloaded function. |
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Overloaded function. |
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Build the index to (cell, local index) map from a dofmap ((cell, local index ) -> index). |
Classes
Coordinate map element |
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Object for representing Dirichlet (essential) boundary conditions |
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DofMap object |
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Object describing the layout of dofs on a cell |
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Finite element object |
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Variational form object |
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Members: |
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class
dolfinx.cpp.fem.
CoordinateElement
¶ Bases:
pybind11_builtins.pybind11_object
Coordinate map element
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property
dof_layout
¶
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property
non_affine_atol
¶
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property
non_affine_max_its
¶
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push_forward
(self: dolfinx.cpp.fem.CoordinateElement, arg0: numpy.ndarray[numpy.float64[m, n], flags.writeable, flags.c_contiguous], arg1: numpy.ndarray[numpy.float64[m, n], flags.c_contiguous], arg2: numpy.ndarray[numpy.float64[m, n], flags.c_contiguous]) → None¶
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property
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class
dolfinx.cpp.fem.
DirichletBC
(*args, **kwargs)¶ Bases:
pybind11_builtins.pybind11_object
Object for representing Dirichlet (essential) boundary conditions
Overloaded function.
__init__(self: dolfinx.cpp.fem.DirichletBC, V: dolfinx.cpp.function.Function, g: List[numpy.ndarray[numpy.int32[m, 1]][2]], V_g_dofs: dolfinx.cpp.function.FunctionSpace) -> None
__init__(self: dolfinx.cpp.fem.DirichletBC, g: dolfinx.cpp.function.Function, dofs: numpy.ndarray[numpy.int32[m, 1]]) -> None
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dof_indices
(self: dolfinx.cpp.fem.DirichletBC) → numpy.ndarray[numpy.int32[m, 1]]¶
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property
function_space
¶
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property
value
¶
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class
dolfinx.cpp.fem.
DofMap
(self: dolfinx.cpp.fem.DofMap, element_dof_layout: dolfinx.cpp.fem.ElementDofLayout, index_map: dolfinx.cpp.common.IndexMap, index_map_bs: int, dofmap: dolfinx.cpp.graph.AdjacencyList_int32, bs: int) → None¶ Bases:
pybind11_builtins.pybind11_object
DofMap object
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property
bs
¶
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cell_dofs
(self: dolfinx.cpp.fem.DofMap, arg0: int) → numpy.ndarray[numpy.int32[m, 1]]¶
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property
dof_layout
¶
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property
index_map
¶
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property
index_map_bs
¶
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list
(self: dolfinx.cpp.fem.DofMap) → dolfinx.cpp.graph.AdjacencyList_int32¶
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property
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class
dolfinx.cpp.fem.
ElementDofLayout
(self: dolfinx.cpp.fem.ElementDofLayout, arg0: int, arg1: List[List[Set[int]]], arg2: List[int], arg3: List[dolfinx.cpp.fem.ElementDofLayout], arg4: dolfinx.cpp.mesh.CellType, arg5: numpy.ndarray[numpy.int32[m, n]]) → None¶ Bases:
pybind11_builtins.pybind11_object
Object describing the layout of dofs on a cell
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block_size
(self: dolfinx.cpp.fem.ElementDofLayout) → int¶
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entity_closure_dofs
(self: dolfinx.cpp.fem.ElementDofLayout, arg0: int, arg1: int) → numpy.ndarray[numpy.int32[m, 1]]¶
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entity_dofs
(self: dolfinx.cpp.fem.ElementDofLayout, arg0: int, arg1: int) → numpy.ndarray[numpy.int32[m, 1]]¶
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property
num_dofs
¶
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num_entity_closure_dofs
(self: dolfinx.cpp.fem.ElementDofLayout, arg0: int) → int¶
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num_entity_dofs
(self: dolfinx.cpp.fem.ElementDofLayout, arg0: int) → int¶
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class
dolfinx.cpp.fem.
FiniteElement
(self: dolfinx.cpp.fem.FiniteElement, arg0: int) → None¶ Bases:
pybind11_builtins.pybind11_object
Finite element object
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dof_reference_coordinates
(self: dolfinx.cpp.fem.FiniteElement) → numpy.ndarray[numpy.float64[m, n]]¶
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num_sub_elements
(self: dolfinx.cpp.fem.FiniteElement) → int¶
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signature
(self: dolfinx.cpp.fem.FiniteElement) → str¶
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space_dimension
(self: dolfinx.cpp.fem.FiniteElement) → int¶
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value_dimension
(self: dolfinx.cpp.fem.FiniteElement, arg0: int) → int¶
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property
value_rank
¶
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class
dolfinx.cpp.fem.
Form
(self: dolfinx.cpp.fem.Form, spaces: List[dolfinx.cpp.function.FunctionSpace], integrals: Dict[dolfinx.cpp.fem.IntegralType, Tuple[List[Tuple[int, object]], dolfinx.cpp.mesh.MeshTags_int32]], coefficients: List[dolfinx.cpp.function.Function], constants: List[dolfinx.cpp.function.Constant], need_permutation_data: bool, mesh: dolfinx.cpp.mesh.Mesh = None) → None¶ Bases:
pybind11_builtins.pybind11_object
Variational form object
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property
coefficients
¶
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domains
(self: dolfinx.cpp.fem.Form, arg0: dolfinx.cpp.fem.IntegralType, arg1: int) → List[int]¶
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property
function_spaces
¶
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integral_ids
(self: dolfinx.cpp.fem.Form, arg0: dolfinx.cpp.fem.IntegralType) → List[int]¶
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property
mesh
¶
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property
rank
¶
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property
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class
dolfinx.cpp.fem.
IntegralType
(self: dolfinx.cpp.fem.IntegralType, arg0: int) → None¶ Bases:
pybind11_builtins.pybind11_object
Members:
cell
exterior_facet
interior_facet
vertex
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cell
= <IntegralType.cell: 0>¶
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exterior_facet
= <IntegralType.exterior_facet: 1>¶
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interior_facet
= <IntegralType.interior_facet: 2>¶
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property
name
¶
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vertex
= <IntegralType.vertex: 3>¶
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dolfinx.cpp.fem.
add_diagonal
(arg0: mat, arg1: dolfinx.cpp.function.FunctionSpace, arg2: List[dolfinx.cpp.fem.DirichletBC], arg3: float) → None¶
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dolfinx.cpp.fem.
apply_lifting
(arg0: numpy.ndarray[numpy.float64[m, 1], flags.writeable], arg1: List[dolfinx::fem::Form<double>], arg2: List[List[dolfinx.cpp.fem.DirichletBC]], arg3: List[numpy.ndarray[numpy.float64[m, 1]]], arg4: float) → None¶ Modify vector for lifted boundary conditions
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dolfinx.cpp.fem.
assemble_matrix
(arg0: Callable[[int, int, int, int, float], int], arg1: dolfinx::fem::Form<double>, arg2: List[dolfinx.cpp.fem.DirichletBC]) → None¶
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dolfinx.cpp.fem.
assemble_matrix_petsc
(*args, **kwargs)¶ Overloaded function.
assemble_matrix_petsc(arg0: mat, arg1: dolfinx::fem::Form<double>, arg2: List[dolfinx.cpp.fem.DirichletBC]) -> None
assemble_matrix_petsc(arg0: mat, arg1: dolfinx::fem::Form<double>, arg2: List[bool], arg3: List[bool]) -> None
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dolfinx.cpp.fem.
assemble_matrix_petsc_unrolled
(*args, **kwargs)¶ Overloaded function.
assemble_matrix_petsc_unrolled(arg0: mat, arg1: dolfinx::fem::Form<double>, arg2: List[dolfinx.cpp.fem.DirichletBC]) -> None
assemble_matrix_petsc_unrolled(arg0: mat, arg1: dolfinx::fem::Form<double>, arg2: List[bool], arg3: List[bool]) -> None
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dolfinx.cpp.fem.
assemble_scalar
(arg0: dolfinx::fem::Form<double>) → float¶ Assemble functional over mesh
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dolfinx.cpp.fem.
assemble_vector
(b: numpy.ndarray[numpy.float64[m, 1], flags.writeable], L: dolfinx::fem::Form<double>) → None¶ Assemble linear form into an existing Eigen vector
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dolfinx.cpp.fem.
bcs_cols
(arg0: List[List[dolfinx::fem::Form<double>]], arg1: List[dolfinx.cpp.fem.DirichletBC]) → List[List[List[dolfinx.cpp.fem.DirichletBC]]]¶
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dolfinx.cpp.fem.
bcs_rows
(arg0: List[dolfinx::fem::Form<double>], arg1: List[dolfinx.cpp.fem.DirichletBC]) → List[List[dolfinx.cpp.fem.DirichletBC]]¶
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dolfinx.cpp.fem.
build_dofmap
(arg0: MPICommWrapper, arg1: dolfinx.cpp.mesh.Topology, arg2: dolfinx::fem::ElementDofLayout) → Tuple[dolfinx.cpp.common.IndexMap, int, dolfinx.cpp.graph.AdjacencyList_int32]¶ Build and dofmap on a mesh.
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dolfinx.cpp.fem.
create_coordinate_map
(arg0: int) → dolfinx::fem::CoordinateElement¶ Create CoordinateElement from a pointer to ufc_coordinate_map.
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dolfinx.cpp.fem.
create_dofmap
(arg0: MPICommWrapper, arg1: int, arg2: dolfinx.cpp.mesh.Topology) → dolfinx::fem::DofMap¶ Create DofMap object from a pointer to ufc_dofmap.
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dolfinx.cpp.fem.
create_element_dof_layout
(arg0: int, arg1: dolfinx.cpp.mesh.CellType, arg2: List[int]) → dolfinx::fem::ElementDofLayout¶ Create ElementDofLayout object from a ufc dofmap.
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dolfinx.cpp.fem.
create_form
(arg0: int, arg1: List[dolfinx.cpp.function.FunctionSpace], arg2: List[dolfinx.cpp.function.Function], arg3: List[dolfinx.cpp.function.Constant], arg4: Dict[dolfinx::fem::IntegralType, dolfinx.cpp.mesh.MeshTags_int32], arg5: dolfinx.cpp.mesh.Mesh) → dolfinx::fem::Form<double>¶ Create Form from a pointer to ufc_form.
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dolfinx.cpp.fem.
create_matrix
(a: dolfinx::fem::Form<double>, type: str = '') → mat¶ Create a PETSc Mat for bilinear form.
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dolfinx.cpp.fem.
create_matrix_block
(a: List[List[dolfinx::fem::Form<double>]], type: str = '') → mat¶ Create monolithic sparse matrix for stacked bilinear forms.
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dolfinx.cpp.fem.
create_matrix_nest
(a: List[List[dolfinx::fem::Form<double>]], types: List[List[str]] = []) → mat¶ Create nested sparse matrix for bilinear forms.
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dolfinx.cpp.fem.
create_sparsity_pattern
(arg0: dolfinx::fem::Form<double>) → dolfinx::la::SparsityPattern¶ Create a sparsity pattern for bilinear form.
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dolfinx.cpp.fem.
create_vector_block
(arg0: List[Tuple[dolfinx.cpp.common.IndexMap, int]]) → vec¶ Create a monolithic vector for multiple (stacked) linear forms.
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dolfinx.cpp.fem.
create_vector_nest
(arg0: List[Tuple[dolfinx.cpp.common.IndexMap, int]]) → vec¶ Create nested vector for multiple (stacked) linear forms.
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dolfinx.cpp.fem.
locate_dofs_geometrical
(*args, **kwargs)¶ Overloaded function.
locate_dofs_geometrical(V: List[dolfinx.cpp.function.FunctionSpace], marker: Callable[[numpy.ndarray[numpy.float64[3, n], flags.c_contiguous]], numpy.ndarray[bool[m, 1]]]) -> List[numpy.ndarray[numpy.int32[m, 1]][2]]
locate_dofs_geometrical(V: dolfinx.cpp.function.FunctionSpace, marker: Callable[[numpy.ndarray[numpy.float64[3, n], flags.c_contiguous]], numpy.ndarray[bool[m, 1]]]) -> numpy.ndarray[numpy.int32[m, 1]]
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dolfinx.cpp.fem.
locate_dofs_topological
(*args, **kwargs)¶ Overloaded function.
locate_dofs_topological(V: List[dolfinx.cpp.function.FunctionSpace], dim: int, entities: numpy.ndarray[numpy.int32[m, 1]], remote: bool = True) -> List[numpy.ndarray[numpy.int32[m, 1]][2]]
locate_dofs_topological(V: dolfinx.cpp.function.FunctionSpace, dim: int, entities: numpy.ndarray[numpy.int32[m, 1]], remote: bool = True) -> numpy.ndarray[numpy.int32[m, 1]]
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dolfinx.cpp.fem.
pack_coefficients
(*args, **kwargs)¶ Overloaded function.
pack_coefficients(arg0: dolfinx::fem::Form<double>) -> numpy.ndarray[numpy.float64[m, n]]
Pack coefficients for a UFL form.
pack_coefficients(arg0: dolfinx::fem::Form<double>) -> numpy.ndarray[numpy.float64[m, n]]
Pack coefficients for a UFL expression.
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dolfinx.cpp.fem.
pack_constants
(*args, **kwargs)¶ Overloaded function.
pack_constants(arg0: dolfinx::fem::Form<double>) -> numpy.ndarray[numpy.float64[m, 1]]
Pack constants for a UFL form.
pack_constants(arg0: dolfinx.cpp.function.Expression) -> numpy.ndarray[numpy.float64[m, 1]]
Pack constants for a UFL expression.
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dolfinx.cpp.fem.
set_bc
(b: numpy.ndarray[numpy.float64[m, 1], flags.writeable], bcs: List[dolfinx.cpp.fem.DirichletBC], x0: numpy.ndarray[numpy.float64] = None, scale: float = 1.0) → None¶
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dolfinx.cpp.fem.
transpose_dofmap
(arg0: dolfinx.cpp.graph.AdjacencyList_int32, arg1: int) → dolfinx.cpp.graph.AdjacencyList_int32¶ Build the index to (cell, local index) map from a dofmap ((cell, local index ) -> index).