dolfinx.cpp.io

I/O module

Functions

`distribute_entity_data`(mesh, entity_dim, ...)
`extract_vtk_connectivity`(mesh)	Extract the mesh topology with VTK ordering using geometry indices
`get_vtk_cell_type`(cell, dim)	Get VTK cell identifier
`perm_gmsh`(type, num_nodes)	Permutation array to map from Gmsh to DOLFINx node ordering
`perm_vtk`(type, num_nodes)	Permutation array to map from VTK to DOLFINx node ordering

Classes

`FidesWriter`(args, *kwargs)	FidesWriter object
`VTKFile`(self, comm, filename, mode)
`VTXWriter`(args, *kwargs)	VTXWriter object
`XDMFFile`(self, comm, filename, file_mode, ...)

class dolfinx.cpp.io.FidesWriter(*args, **kwargs)

Bases: pybind11_object

FidesWriter object

Overloaded function.

__init__(self: dolfinx.cpp.io.FidesWriter, comm: MPICommWrapper, filename: os.PathLike, mesh: dolfinx.cpp.mesh.Mesh) -> None
__init__(self: dolfinx.cpp.io.FidesWriter, comm: MPICommWrapper, filename: os.PathLike, u: List[Union[dolfinx.cpp.fem.Function_float64, dolfinx.cpp.fem.Function_complex128]]) -> None

close(self: dolfinx.cpp.io.FidesWriter) → None

write(self: dolfinx.cpp.io.FidesWriter, t: float) → None

class dolfinx.cpp.io.VTKFile(self: dolfinx.cpp.io.VTKFile, comm: MPICommWrapper, filename: os.PathLike, mode: str)

Bases: pybind11_object

close(self: dolfinx.cpp.io.VTKFile) → None

write(*args, **kwargs)

Overloaded function.

write(self: dolfinx.cpp.io.VTKFile, u: List[dolfinx.cpp.fem.Function_float64], t: float = 0.0) -> None
write(self: dolfinx.cpp.io.VTKFile, u: List[dolfinx.cpp.fem.Function_complex128], t: float = 0.0) -> None
write(self: dolfinx.cpp.io.VTKFile, mesh: dolfinx.cpp.mesh.Mesh, t: float = 0.0) -> None

class dolfinx.cpp.io.VTXWriter(*args, **kwargs)

Bases: pybind11_object

VTXWriter object

Overloaded function.

__init__(self: dolfinx.cpp.io.VTXWriter, comm: MPICommWrapper, filename: os.PathLike, mesh: dolfinx.cpp.mesh.Mesh) -> None
__init__(self: dolfinx.cpp.io.VTXWriter, comm: MPICommWrapper, filename: os.PathLike, u: List[Union[dolfinx.cpp.fem.Function_float64, dolfinx.cpp.fem.Function_complex128]]) -> None

close(self: dolfinx.cpp.io.VTXWriter) → None

write(self: dolfinx.cpp.io.VTXWriter, t: float) → None

class dolfinx.cpp.io.XDMFFile(self: dolfinx.cpp.io.XDMFFile, comm: MPICommWrapper, filename: os.PathLike, file_mode: str, encoding: dolfinx.cpp.io.XDMFFile.Encoding = <Encoding.HDF5: 0>)

Bases: pybind11_object

class Encoding(self: dolfinx.cpp.io.XDMFFile.Encoding, value: int)

Bases: pybind11_object

Members:

HDF5

ASCII

ASCII = <Encoding.ASCII: 1>

HDF5 = <Encoding.HDF5: 0>

property name

property value

close(self: dolfinx.cpp.io.XDMFFile) → None

comm(self: dolfinx.cpp.io.XDMFFile) → MPICommWrapper

read_cell_type(self: dolfinx.cpp.io.XDMFFile, name: str = 'mesh', xpath: str = '/Xdmf/Domain') → Tuple[dolfinx.cpp.mesh.CellType, int]

read_geometry_data(*args, **kwargs)

Overloaded function.

read_geometry_data(self: dolfinx.cpp.io.XDMFFile, name: str = ‘mesh’, xpath: str = ‘/Xdmf/Domain’) -> numpy.ndarray[numpy.float64]
read_geometry_data(self: dolfinx.cpp.io.XDMFFile, name: str = ‘mesh’, xpath: str = ‘/Xdmf/Domain’) -> Tuple[List[float], List[int[2]]]

read_information(self: dolfinx.cpp.io.XDMFFile, name: str, xpath: str = '/Xdmf/Domain') → str

read_meshtags(self: dolfinx.cpp.io.XDMFFile, mesh: dolfinx.cpp.mesh.Mesh, name: str, xpath: str = '/Xdmf/Domain') → dolfinx.cpp.mesh.MeshTags_int32

read_topology_data(self: dolfinx.cpp.io.XDMFFile, name: str = 'mesh', xpath: str = '/Xdmf/Domain') → numpy.ndarray[numpy.int64]

write_function(*args, **kwargs)

Overloaded function.

write_function(self: dolfinx.cpp.io.XDMFFile, function: dolfinx.cpp.fem.Function_float64, t: float, mesh_xpath: str) -> None
write_function(self: dolfinx.cpp.io.XDMFFile, function: dolfinx.cpp.fem.Function_complex128, t: float, mesh_xpath: str) -> None

write_geometry(self: dolfinx.cpp.io.XDMFFile, geometry: dolfinx.cpp.mesh.Geometry, name: str = 'geometry', xpath: str = '/Xdmf/Domain') → None

write_information(self: dolfinx.cpp.io.XDMFFile, name: str, value: str, xpath: str = '/Xdmf/Domain') → None

write_mesh(self: dolfinx.cpp.io.XDMFFile, mesh: dolfinx.cpp.mesh.Mesh, xpath: str = '/Xdmf/Domain') → None

write_meshtags(self: dolfinx.cpp.io.XDMFFile, meshtags: dolfinx.cpp.mesh.MeshTags_int32, geometry_xpath: str = '/Xdmf/Domain/Grid/Geometry', xpath: str = '/Xdmf/Domain') → None

dolfinx.cpp.io.distribute_entity_data(mesh: dolfinx.cpp.mesh.Mesh, entity_dim: int, entities: numpy.ndarray[numpy.int64], values: numpy.ndarray[numpy.int32]) → Tuple[numpy.ndarray[numpy.int32], numpy.ndarray[numpy.int32]]

dolfinx.cpp.io.extract_vtk_connectivity(mesh: dolfinx.cpp.mesh.Mesh) → numpy.ndarray[numpy.int64]: Extract the mesh topology with VTK ordering using geometry indices

dolfinx.cpp.io.get_vtk_cell_type(cell: dolfinx.cpp.mesh.CellType, dim: int) → int: Get VTK cell identifier

dolfinx.cpp.io.perm_gmsh(type: dolfinx.cpp.mesh.CellType, num_nodes: int) → List[int]: Permutation array to map from Gmsh to DOLFINx node ordering

dolfinx.cpp.io.perm_vtk(type: dolfinx.cpp.mesh.CellType, num_nodes: int) → List[int]: Permutation array to map from VTK to DOLFINx node ordering