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[Anders Logg <question97807@xxxxxxxxxxxxxxxxxxxxx>]

Question #97807 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/97807

Anders Logg posted a new comment:
On Fri, Jan 29, 2010 at 07:21:03PM -0000, Garth Wells wrote:
> Question #97807 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/97807
>
> Garth Wells posted a new comment:
> I've just added a new function to DofMap:
>
>     /// Return the set of dof indices
>     Set<dolfin::uint> list(const Mesh& mesh, bool sort = false) const;
>
> It can be particularly useful for mixed elements, since a for 'shallow'
> sub-function it  will give the entries in the 'big' function vector
> associated with a particular field, e.g.
>
>     boost::shared_ptr<FunctionSpace> V_sub = V[1];
>     Set<dolfin::uint> sub_dof_list = V_sub->dofmap().list(mesh, true);
>     for (dolfin::uint i = 0; i < sub_dof_list.size(); ++i )
>         cout << "i: " << i << "  " << sub_dof_list[i] << endl;

list does not seem to be an optimal name for this function. Something
like dof_set() or just dofs() would be better.

--
Anders

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