MeshIOPetsc

Full name:

pylith.meshio.MeshIOPetsc

Journal name:

meshiopetsc

Python object for a variety of reading/writing finite-element meshes using PETSc. Currently, the primary use of this object is to import meshes from Gmsh.

Warning

The coordinate system associated with the mesh must be a Cartesian coordinate system, such as a generic Cartesian coordinate system or a geographic projection.

Implements MeshIOObj.

Pyre Facilities

• coordsys: Coordinate system associated with mesh.

  • current value: ‘cscart’, from {default}

  • configurable as: cscart, coordsys

Pyre Properties

• filename=<str>: Name of mesh file for reading with PETSc.

  • default value: ‘’

  • current value: ‘’, from {default}

• gmsh_mark_recursive=<bool>: Gmsh file marks faces, edges, and vertices rather than just faces (3D) or edges (2D).

  • default value: False

  • current value: False, from {default}

• options_prefix=<str>: Name of PETSc options prefix for this mesh.

  • default value: ‘’

  • current value: ‘’, from {default}

Example

Example of setting MeshIOPetsc Pyre properties and facilities in a parameter file.

[pylithapp.problem.mesh_initializer.phases.read_mesh.reader]
filename = mesh_quad.msh
gmsh_mark_vertices = False
coordsys.space_dim = 2