dolfinx.cpp.mesh

Mesh library module

Functions

`build_dual_graph`(comm, cells, tdim)	Build dual graph for cells
`cell_dim`(type)
`cell_entity_type`(type, dim, index)
`cell_normals`(mesh, dim, entities)
`cell_num_entities`(type, dim)
`cell_num_vertices`(type)
`compute_connectivity`(topology, d0, d1)
`compute_entities`(comm, topology, dim)
`compute_incident_entities`(mesh, entities, d0, d1)
`compute_midpoints`(mesh, dim, entities)
`create_box`(comm, p, n, celltype, ...)
`create_cell_partitioner`(args, *kwargs)	Overloaded function.
`create_interval`(comm, n, p, ghost_mode, ...)
`create_mesh`(comm, cells, element, x, ...)	Helper function for creating meshes.
`create_meshtags`(args, *kwargs)	Overloaded function.
`create_rectangle`(comm, p, n, celltype, ...)
`create_submesh`(mesh, dim, entities)
`entities_to_geometry`(mesh, dim, entities, orient)
`exterior_facet_indices`(topology)
`extract_topology`(cell_type, layout, cells)
`get_entity_vertices`(type, dim)
`h`(mesh, dim, entities)	Compute maximum distance between any two vertices.
`is_simplex`(type)
`locate_entities`(mesh, dim, marker)
`locate_entities_boundary`(mesh, dim, marker)
`to_string`(type)
`to_type`(cell)

Classes

`CellType`(self, value)	Members:
`DiagonalType`(self, value)	Members:
`Geometry`	Geometry object
`GhostMode`(self, value)	Members:
`Mesh`(self, comm, topology, geometry)	Mesh object
`MeshTags_float64`(self, arg0, arg1, arg2, arg3)	MeshTags object
`MeshTags_int32`(self, arg0, arg1, arg2, arg3)	MeshTags object
`MeshTags_int64`(self, arg0, arg1, arg2, arg3)	MeshTags object
`MeshTags_int8`(self, arg0, arg1, arg2, arg3)	MeshTags object
`Topology`(self, comm, cell_type)	Topology object

class dolfinx.cpp.mesh.CellType(self: dolfinx.cpp.mesh.CellType, value: int)

Bases: pybind11_object

Members:

point

interval

triangle

quadrilateral

tetrahedron

pyramid

prism

hexahedron

hexahedron = <CellType.hexahedron: -8>

interval = <CellType.interval: 2>

property name

point = <CellType.point: 1>

prism = <CellType.prism: -6>

pyramid = <CellType.pyramid: -5>

quadrilateral = <CellType.quadrilateral: -4>

tetrahedron = <CellType.tetrahedron: 4>

triangle = <CellType.triangle: 3>

property value

class dolfinx.cpp.mesh.DiagonalType(self: dolfinx.cpp.mesh.DiagonalType, value: int)

Bases: pybind11_object

Members:

left

right

crossed

left_right

right_left

crossed = <DiagonalType.crossed: 2>

left = <DiagonalType.left: 0>

left_right = <DiagonalType.left_right: 4>

property name

right = <DiagonalType.right: 1>

right_left = <DiagonalType.right_left: 5>

property value

class dolfinx.cpp.mesh.Geometry

Bases: pybind11_object

Geometry object

property cmap: The coordinate map

property dim: Geometric dimension

property dofmap

index_map(self: dolfinx.cpp.mesh.Geometry) → dolfinx.cpp.common.IndexMap

property input_global_indices

property x: Return coordinates of all geometry points. Each row is the coordinate of a point.

class dolfinx.cpp.mesh.GhostMode(self: dolfinx.cpp.mesh.GhostMode, value: int)

Bases: pybind11_object

Members:

none

shared_facet

shared_vertex

property name

none = <GhostMode.none: 0>

shared_facet = <GhostMode.shared_facet: 1>

shared_vertex = <GhostMode.shared_vertex: 2>

property value

class dolfinx.cpp.mesh.Mesh(self: dolfinx.cpp.mesh.Mesh, comm: MPICommWrapper, topology: dolfinx.cpp.mesh.Topology, geometry: dolfinx.cpp.mesh.Geometry)

Bases: pybind11_object

Mesh object

property comm

property geometry: Mesh geometry

property name

property topology: Mesh topology

class dolfinx.cpp.mesh.MeshTags_float64(self: dolfinx.cpp.mesh.MeshTags_float64, arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: numpy.ndarray[numpy.int32], arg3: numpy.ndarray[numpy.float64])

Bases: pybind11_object

MeshTags object

property dim

property dtype

find(self: dolfinx.cpp.mesh.MeshTags_float64, arg0: float) → numpy.ndarray[numpy.int32]

property indices

property mesh

property name

ufl_id() → int

property values

class dolfinx.cpp.mesh.MeshTags_int32(self: dolfinx.cpp.mesh.MeshTags_int32, arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: numpy.ndarray[numpy.int32], arg3: numpy.ndarray[numpy.int32])

Bases: pybind11_object

MeshTags object

property dim

property dtype

find(self: dolfinx.cpp.mesh.MeshTags_int32, arg0: int) → numpy.ndarray[numpy.int32]

property indices

property mesh

property name

ufl_id() → int

property values

class dolfinx.cpp.mesh.MeshTags_int64(self: dolfinx.cpp.mesh.MeshTags_int64, arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: numpy.ndarray[numpy.int32], arg3: numpy.ndarray[numpy.int64])

Bases: pybind11_object

MeshTags object

property dim

property dtype

find(self: dolfinx.cpp.mesh.MeshTags_int64, arg0: int) → numpy.ndarray[numpy.int32]

property indices

property mesh

property name

ufl_id() → int

property values

class dolfinx.cpp.mesh.MeshTags_int8(self: dolfinx.cpp.mesh.MeshTags_int8, arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: numpy.ndarray[numpy.int32], arg3: numpy.ndarray[numpy.int8])

Bases: pybind11_object

MeshTags object

property dim

property dtype

find(self: dolfinx.cpp.mesh.MeshTags_int8, arg0: int) → numpy.ndarray[numpy.int32]

property indices

property mesh

property name

ufl_id() → int

property values

class dolfinx.cpp.mesh.Topology(self: dolfinx.cpp.mesh.Topology, comm: MPICommWrapper, cell_type: dolfinx.cpp.mesh.CellType)

Bases: pybind11_object

Topology object

cell_name(self: dolfinx.cpp.mesh.Topology) → str

property cell_type

property comm

connectivity(self: dolfinx.cpp.mesh.Topology, d0: int, d1: int) → dolfinx::graph::AdjacencyList<int>

create_connectivity(self: dolfinx.cpp.mesh.Topology, d0: int, d1: int) → None

create_entities(self: dolfinx.cpp.mesh.Topology, dim: int) → int

create_entity_permutations(self: dolfinx.cpp.mesh.Topology) → None

property dim: Topological dimension

get_cell_permutation_info(self: dolfinx.cpp.mesh.Topology) → numpy.ndarray[numpy.uint32]

get_facet_permutations(self: dolfinx.cpp.mesh.Topology) → numpy.ndarray[numpy.uint8]

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

interprocess_facets(self: dolfinx.cpp.mesh.Topology) → List[int]

property original_cell_index

set_connectivity(self: dolfinx.cpp.mesh.Topology, c: dolfinx::graph::AdjacencyList<int>, d0: int, d1: int) → None

set_index_map(self: dolfinx.cpp.mesh.Topology, dim: int, map: dolfinx.cpp.common.IndexMap) → None

dolfinx.cpp.mesh.build_dual_graph(comm: MPICommWrapper, cells: dolfinx::graph::AdjacencyList<long>, tdim: int) → dolfinx::graph::AdjacencyList<long>: Build dual graph for cells

dolfinx.cpp.mesh.cell_dim(type: dolfinx.cpp.mesh.CellType) → int

dolfinx.cpp.mesh.cell_entity_type(type: dolfinx.cpp.mesh.CellType, dim: int, index: int) → dolfinx.cpp.mesh.CellType

dolfinx.cpp.mesh.cell_normals(mesh: dolfinx::mesh::Mesh, dim: int, entities: numpy.ndarray[numpy.int32]) → numpy.ndarray[numpy.float64]

dolfinx.cpp.mesh.cell_num_entities(type: dolfinx.cpp.mesh.CellType, dim: int) → int

dolfinx.cpp.mesh.cell_num_vertices(type: dolfinx.cpp.mesh.CellType) → int

dolfinx.cpp.mesh.compute_connectivity(topology: dolfinx::mesh::Topology, d0: int, d1: int) → List[dolfinx::graph::AdjacencyList<int>[2]]

dolfinx.cpp.mesh.compute_entities(comm: MPICommWrapper, topology: dolfinx::mesh::Topology, dim: int) → Tuple[dolfinx::graph::AdjacencyList<int>, dolfinx::graph::AdjacencyList<int>, dolfinx.cpp.common.IndexMap, List[int]]

dolfinx.cpp.mesh.compute_incident_entities(mesh: dolfinx.cpp.mesh.Mesh, entities: numpy.ndarray[numpy.int32], d0: int, d1: int) → numpy.ndarray[numpy.int32]

dolfinx.cpp.mesh.compute_midpoints(mesh: dolfinx::mesh::Mesh, dim: int, entities: numpy.ndarray[numpy.int32]) → numpy.ndarray[numpy.float64]

dolfinx.cpp.mesh.create_box(comm: MPICommWrapper, p: List[List[float[3]][2]], n: List[int[3]], celltype: dolfinx.cpp.mesh.CellType, partitioner: Callable[[MPICommWrapper, int, int, dolfinx::graph::AdjacencyList<long>], dolfinx::graph::AdjacencyList<int>]) → dolfinx.cpp.mesh.Mesh

dolfinx.cpp.mesh.create_cell_partitioner(*args, **kwargs)

Overloaded function.

create_cell_partitioner(arg0: dolfinx.cpp.mesh.GhostMode) -> Callable[[MPICommWrapper, int, int, dolfinx::graph::AdjacencyList<long>], dolfinx::graph::AdjacencyList<int>]
create_cell_partitioner(part: Callable[[MPICommWrapper, int, dolfinx::graph::AdjacencyList<long>, bool], dolfinx::graph::AdjacencyList<int>]) -> Callable[[MPICommWrapper, int, int, dolfinx::graph::AdjacencyList<long>], dolfinx::graph::AdjacencyList<int>]

dolfinx.cpp.mesh.create_interval(comm: MPICommWrapper, n: int, p: List[float[2]], ghost_mode: dolfinx.cpp.mesh.GhostMode, partitioner: Callable[[MPICommWrapper, int, int, dolfinx::graph::AdjacencyList<long>], dolfinx::graph::AdjacencyList<int>]) → dolfinx.cpp.mesh.Mesh

dolfinx.cpp.mesh.create_mesh(comm: MPICommWrapper, cells: dolfinx::graph::AdjacencyList<long>, element: dolfinx::fem::CoordinateElement, x: numpy.ndarray[numpy.float64], partitioner: Callable[[MPICommWrapper, int, int, dolfinx::graph::AdjacencyList<long>], dolfinx::graph::AdjacencyList<int>]) → dolfinx::mesh::Mesh: Helper function for creating meshes.

dolfinx.cpp.mesh.create_meshtags(*args, **kwargs)

Overloaded function.

create_meshtags(arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: dolfinx::graph::AdjacencyList<int>, arg3: numpy.ndarray[numpy.int8]) -> dolfinx.cpp.mesh.MeshTags_int8
create_meshtags(arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: dolfinx::graph::AdjacencyList<int>, arg3: numpy.ndarray[numpy.int32]) -> dolfinx.cpp.mesh.MeshTags_int32
create_meshtags(arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: dolfinx::graph::AdjacencyList<int>, arg3: numpy.ndarray[numpy.int64]) -> dolfinx.cpp.mesh.MeshTags_int64
create_meshtags(arg0: dolfinx.cpp.mesh.Mesh, arg1: int, arg2: dolfinx::graph::AdjacencyList<int>, arg3: numpy.ndarray[numpy.float64]) -> dolfinx.cpp.mesh.MeshTags_float64

dolfinx.cpp.mesh.create_rectangle(comm: MPICommWrapper, p: List[List[float[2]][2]], n: List[int[2]], celltype: dolfinx.cpp.mesh.CellType, partitioner: Callable[[MPICommWrapper, int, int, dolfinx::graph::AdjacencyList<long>], dolfinx::graph::AdjacencyList<int>], diagonal: dolfinx.cpp.mesh.DiagonalType) → dolfinx.cpp.mesh.Mesh

dolfinx.cpp.mesh.create_submesh(mesh: dolfinx::mesh::Mesh, dim: int, entities: numpy.ndarray[numpy.int32]) → Tuple[dolfinx::mesh::Mesh, List[int], List[int], List[int]]

dolfinx.cpp.mesh.entities_to_geometry(mesh: dolfinx.cpp.mesh.Mesh, dim: int, entities: numpy.ndarray[numpy.int32], orient: bool) → numpy.ndarray[numpy.int32]

dolfinx.cpp.mesh.exterior_facet_indices(topology: dolfinx.cpp.mesh.Topology) → numpy.ndarray[numpy.int32]

dolfinx.cpp.mesh.extract_topology(cell_type: dolfinx.cpp.mesh.CellType, layout: dolfinx::fem::ElementDofLayout, cells: dolfinx::graph::AdjacencyList<long>) → dolfinx::graph::AdjacencyList<long>

dolfinx.cpp.mesh.get_entity_vertices(type: dolfinx.cpp.mesh.CellType, dim: int) → dolfinx::graph::AdjacencyList<int>

dolfinx.cpp.mesh.h(mesh: dolfinx::mesh::Mesh, dim: int, entities: numpy.ndarray[numpy.int32]) → numpy.ndarray[numpy.float64]: Compute maximum distance between any two vertices.

dolfinx.cpp.mesh.is_simplex(type: dolfinx.cpp.mesh.CellType) → bool

dolfinx.cpp.mesh.locate_entities(mesh: dolfinx.cpp.mesh.Mesh, dim: int, marker: Callable[[numpy.ndarray[numpy.float64]], numpy.ndarray[bool]]) → numpy.ndarray[numpy.int32]

dolfinx.cpp.mesh.locate_entities_boundary(mesh: dolfinx.cpp.mesh.Mesh, dim: int, marker: Callable[[numpy.ndarray[numpy.float64]], numpy.ndarray[bool]]) → numpy.ndarray[numpy.int32]

dolfinx.cpp.mesh.to_string(type: dolfinx.cpp.mesh.CellType) → str

dolfinx.cpp.mesh.to_type(cell: str) → dolfinx.cpp.mesh.CellType