FunctionSpaceBase

class dolfin.functions.functionspace.FunctionSpaceBase(mesh, element, constrained_domain=None)

Bases: dolfin.cpp.function.FunctionSpace

Base class for all function spaces.

Create function space on given mesh for given finite element.

Arguments

mesh

A Mesh

element

A (UFL) FiniteElement

cell()

Return the UFL cell.

collapse(collapsed_dofs=False)

Collapse a subspace and return a new function space and a map from new to old dofs

Arguments

collapsed_dofs (bool)

Return the map from new to old dofs

Returns

_FunctionSpace_

The new function space.

dict

The map from new to old dofs (optional)

dolfin_element()

Return the DOLFIN element.

extract_sub_space(component)

Extract subspace for component

Arguments

component (numpy.array(uint))

The component.

Returns

_FunctionSpace_

The subspace.

num_sub_spaces()

Return the number of sub spaces

split()

Split a mixed functionspace into its sub spaces

sub(i)

Return the i:th cpp.SubSpace

ufl_element()

Return the UFL element.