# Copyright (C) 2018 Michal Habera
#
# This file is part of DOLFINx (https://www.fenicsproject.org)
#
# SPDX-License-Identifier: LGPL-3.0-or-later
from dolfinx import cpp as _cpp
[docs]
class DofMap:
"""Degree-of-freedom map
This class handles the mapping of degrees of freedom. It builds
a dof map based on a ufcx_dofmap on a specific mesh.
"""
_cpp_object: _cpp.fem.DofMap
def __init__(self, dofmap: _cpp.fem.DofMap):
self._cpp_object = dofmap
[docs]
def cell_dofs(self, cell_index: int):
"""Cell local-global dof map
Args:
cell: The cell index
Returns:
Local-global dof map for the cell (using process-local indices)
"""
return self._cpp_object.cell_dofs(cell_index)
@property
def bs(self):
"""Returns the block size of the dofmap"""
return self._cpp_object.bs
@property
def dof_layout(self):
"""Layout of dofs on an element"""
return self._cpp_object.dof_layout
@property
def index_map(self):
"""Index map that described the parallel distribution of the dofmap"""
return self._cpp_object.index_map
@property
def index_map_bs(self):
"""Block size of the index map"""
return self._cpp_object.index_map_bs
@property
def list(self):
"""Adjacency list with dof indices for each cell"""
return self._cpp_object.map()