XDMFFile

class dolfin.cpp.io.XDMFFile(*args)

Bases: dolfin.cpp.common.Variable

This class supports the output of meshes and functions in XDMF (http://www.xdmf.org) format. It creates an XML file that describes the data and points to a HDF5 file that stores the actual problem data. Output of data in parallel is supported.

XDMF is not suitable for checkpointing as it may decimate some data.

Overloaded versions

• XDMFFile(filename)

  Constructor

• XDMFFile(comm, filename)

  Constructor

Encoding_ASCII = 1

Encoding_HDF5 = 0

read()

Overloaded versions

• read(mesh)

  Read in a mesh

  Arguments

  mesh (Mesh)

• read(meshfunction, name=””)

  Read first MeshFunction from file @param meshfunction @param name

• read(meshfunction, name=””)

  Read first MeshFunction from file @param meshfunction @param name

• read(meshfunction, name=””)

  Read first MeshFunction from file @param meshfunction @param name

• read(meshfunction, name=””)

  Read first MeshFunction from file @param meshfunction @param name

• read(mvc, name=””)

  Read MeshValueCollection from file

• read(mvc, name=””)

  Read MeshValueCollection from file

• read(mvc, name=””)

  Read MeshValueCollection from file

• read(mvc, name=””)

  Read MeshValueCollection from file

thisown

The membership flag

write()

Overloaded versions

• write(mesh)

  Save a mesh to XDMF format, either using an associated HDF5 file, or storing the data inline as XML Create function on given function space

  Arguments

  mesh (Mesh)

  A mesh to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(u)

  Save a Function to XDMF file for visualisation, using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  u (Function)

  A function to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(u, t)

  Save a Function with timestamp to XDMF file for visualisation, using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  u (Function)

  A function to save.

  t (_double_)

  Timestep

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(meshfunction)

  Save MeshFunction to file using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  meshfunction (MeshFunction)

  A meshfunction to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(mvc)

  Write out mesh value collection (subset) using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  mvc (_MeshValueCollection<bool>_)

  A list of points to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(mvc)

  Write out mesh value collection (subset) using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  mvc (_MeshValueCollection<int>_)

  A list of points to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(mvc)

  Write out mesh value collection (subset) using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  mvc (_MeshValueCollection<int>_)

  A list of points to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(mvc)

  Write out mesh value collection (subset) using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  mvc (_MeshValueCollection<double>_)

  A list of points to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(points)

  Save a cloud of points to file using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  points (_std::vector<Point>_)

  A list of points to save.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII

• write(points, values)

  Save a cloud of points, with scalar values using an associated HDF5 file, or storing the data inline as XML.

  Arguments

  points (_std::vector<Point>_)

  A list of points to save.

  values (numpy.array(float))

  A list of values at each point.

  encoding (_Encoding_)

  Encoding to use: HDF5 or ASCII