dolfinx.cpp.mesh

Mesh library module

Classes

CellType(*values)
DiagonalType(*values)
EntityMap(self, topology, sub_topology, dim, ...)	EntityMap object
Geometry_float32(self, index_map, dofmap[, ...])	Geometry object
Geometry_float64(self, index_map, dofmap[, ...])	Geometry object
GhostMode(*values)
MeshTags_float64(self, arg0, arg1, arg2[, ...])	MeshTags object
MeshTags_int32(self, arg0, arg1, arg2[, ...])	MeshTags object
MeshTags_int64(self, arg0, arg1, arg2[, ...])	MeshTags object
MeshTags_int8(self, arg0, arg1, arg2[, ...])	MeshTags object
Mesh_float32(self, comm, topology, geometry)	Mesh object
Mesh_float64(self, comm, topology, geometry)	Mesh object
Topology(self, cell_type, vertex_map, ...[, ...])	Topology object

class dolfinx.cpp.mesh.CellType(*values)

Bases: Enum

hexahedron = -8

interval = 2

property name

(self) -> object

point = 1

prism = -6

pyramid = -5

quadrilateral = -4

tetrahedron = 4

triangle = 3

class dolfinx.cpp.mesh.DiagonalType(*values)

Bases: Enum

crossed = 2

left = 0

left_right = 4

right = 1

right_left = 5

class dolfinx.cpp.mesh.EntityMap(self, topology: dolfinx.cpp.mesh.Topology, sub_topology: dolfinx.cpp.mesh.Topology, dim: int, sub_topology_to_topology: ndarray[dtype=int32, shape=(*), order='C', writable=False])

Bases: object

EntityMap object

property dim

(self) -> int

property sub_topology

(self) -> dolfinx::mesh::Topology

sub_topology_to_topology(self, entities: ndarray[dtype=int32, shape=(*), order='C', writable=False], inverse: bool) → numpy.ndarray[dtype=int32]

property topology

(self) -> dolfinx::mesh::Topology

class dolfinx.cpp.mesh.Geometry_float32(self, index_map: dolfinx.cpp.common.IndexMap, dofmap: ndarray[dtype=int32, shape=(*, *), order='C', writable=False], element: dolfinx.cpp.fem.CoordinateElement_float32, x: ndarray[dtype=float32, shape=(*, *), writable=False], input_global_indices: ndarray[dtype=int64, shape=(*), order='C', writable=False])

Bases: object

Geometry object

property cmaps

The coordinate maps

property dim

Geometric dimension

property dofmaps

The geometry dofmaps

index_map(self) → dolfinx.cpp.common.IndexMap

property input_global_indices

(self) -> numpy.ndarray[dtype=int64, writable=False]

property x

Return coordinates of all geometry points. Each row is the coordinate of a point.

class dolfinx.cpp.mesh.Geometry_float64(self, index_map: dolfinx.cpp.common.IndexMap, dofmap: ndarray[dtype=int32, shape=(*, *), order='C', writable=False], element: dolfinx.cpp.fem.CoordinateElement_float64, x: ndarray[dtype=float64, shape=(*, *), writable=False], input_global_indices: ndarray[dtype=int64, shape=(*), order='C', writable=False])

Bases: object

Geometry object

property cmaps

The coordinate maps

property dim

Geometric dimension

property dofmaps

The geometry dofmaps

index_map(self) → dolfinx.cpp.common.IndexMap

property input_global_indices

(self) -> numpy.ndarray[dtype=int64, writable=False]

property x

Return coordinates of all geometry points. Each row is the coordinate of a point.

class dolfinx.cpp.mesh.GhostMode(*values)

Bases: Enum

none = 0

shared_facet = 1

class dolfinx.cpp.mesh.MeshTags_float64(self, arg0: dolfinx.cpp.mesh.Topology, arg1: int, arg2: ndarray[dtype=int32, shape=(*), order='C', writable=False], arg3: ndarray[dtype=float64, shape=(*), order='C', writable=False], /)

Bases: object

MeshTags object

property dim

(self) -> int

property dtype

(self) -> str

find(self, arg: float, /) → numpy.ndarray[dtype=int32]

property indices

(self) -> numpy.ndarray[dtype=int32, writable=False]

property name

(self) -> str

property topology

(self) -> dolfinx.cpp.mesh.Topology

property values

(self) -> numpy.ndarray[dtype=float64, writable=False]

class dolfinx.cpp.mesh.MeshTags_int32(self, arg0: dolfinx.cpp.mesh.Topology, arg1: int, arg2: ndarray[dtype=int32, shape=(*), order='C', writable=False], arg3: ndarray[dtype=int32, shape=(*), order='C', writable=False], /)

Bases: object

MeshTags object

property dim

(self) -> int

property dtype

(self) -> str

find(self, arg: int, /) → numpy.ndarray[dtype=int32]

property indices

(self) -> numpy.ndarray[dtype=int32, writable=False]

property name

(self) -> str

property topology

(self) -> dolfinx.cpp.mesh.Topology

property values

(self) -> numpy.ndarray[dtype=int32, writable=False]

class dolfinx.cpp.mesh.MeshTags_int64(self, arg0: dolfinx.cpp.mesh.Topology, arg1: int, arg2: ndarray[dtype=int32, shape=(*), order='C', writable=False], arg3: ndarray[dtype=int64, shape=(*), order='C', writable=False], /)

Bases: object

MeshTags object

property dim

(self) -> int

property dtype

(self) -> str

find(self, arg: int, /) → numpy.ndarray[dtype=int32]

property indices

(self) -> numpy.ndarray[dtype=int32, writable=False]

property name

(self) -> str

property topology

(self) -> dolfinx.cpp.mesh.Topology

property values

(self) -> numpy.ndarray[dtype=int64, writable=False]

class dolfinx.cpp.mesh.MeshTags_int8(self, arg0: dolfinx.cpp.mesh.Topology, arg1: int, arg2: ndarray[dtype=int32, shape=(*), order='C', writable=False], arg3: ndarray[dtype=int8, shape=(*), order='C', writable=False], /)

Bases: object

MeshTags object

property dim

(self) -> int

property dtype

(self) -> str

find(self, arg: int, /) → numpy.ndarray[dtype=int32]

property indices

(self) -> numpy.ndarray[dtype=int32, writable=False]

property name

(self) -> str

property topology

(self) -> dolfinx.cpp.mesh.Topology

property values

(self) -> numpy.ndarray[dtype=int8, writable=False]

class dolfinx.cpp.mesh.Mesh_float32(self, comm: MPICommWrapper, topology: dolfinx.cpp.mesh.Topology, geometry: dolfinx.cpp.mesh.Geometry_float32)

Bases: object

Mesh object

property comm

(self) -> MPICommWrapper

property geometry

Mesh geometry

property name

(self) -> str

property topology

Mesh topology

class dolfinx.cpp.mesh.Mesh_float64(self, comm: MPICommWrapper, topology: dolfinx.cpp.mesh.Topology, geometry: dolfinx.cpp.mesh.Geometry_float64)

Bases: object

Mesh object

property comm

(self) -> MPICommWrapper

property geometry

Mesh geometry

property name

(self) -> str

property topology

Mesh topology

class dolfinx.cpp.mesh.Topology(self, cell_type: dolfinx.cpp.mesh.CellType, vertex_map: dolfinx.cpp.common.IndexMap, cell_map: dolfinx.cpp.common.IndexMap, cells: dolfinx.cpp.graph.AdjacencyList_int32, original_index: ndarray[dtype = int64, shape=(*), order='C', writable=False] | None)

Bases: object

Topology object

property cell_type

(self) -> dolfinx.cpp.mesh.CellType

property cell_types

(self) -> list[dolfinx.cpp.mesh.CellType]

property comm

(self) -> MPICommWrapper

connectivity(self, d0: int, d1: int) → dolfinx.cpp.graph.AdjacencyList_int32

connectivity(self, d0: collections.abc.Sequence[int], d1: collections.abc.Sequence[int]) → dolfinx.cpp.graph.AdjacencyList_int32

create_connectivity(self, d0: int, d1: int) → None

create_entities(self, dim: int, num_threads: int = 1) → bool

create_entity_permutations(self) → None

property dim

Topological dimension

property entity_types

(self) -> list[list[dolfinx.cpp.mesh.CellType]]

get_cell_permutation_info(self) → numpy.ndarray[dtype=uint32, writable=False]

get_facet_permutations(self) → numpy.ndarray[dtype=uint8, writable=False]

index_map(self, dim: int) → dolfinx.cpp.common.IndexMap

index_maps(self, dim: int) → list[dolfinx.cpp.common.IndexMap]

interprocess_facets(self) → numpy.ndarray[dtype=int32, writable=False]

property original_cell_index

(self) -> numpy.ndarray[dtype=int64, writable=False]

property original_cell_indices

(self) -> list[numpy.ndarray[dtype=int64, writable=False]]