Re: [Libmesh-users] Constant function that return a vector with non-uniform components?

[Vikram G. <vik...@gm...>]

Hello Yuxiang,
                       You can set an arbitrary boundary condition for
all the system variables using a BdyFunction. Examples of its usage
are provided in the fem_system/fem_system_ex1 and
adjoints/adjoints_ex3 examples.

Thanks.
Vikram Garg

vikramvgarg.github.io/

On Fri, Mar 1, 2019 at 10:33 PM Yuxiang Wang <yw...@vi...> wrote:
>
>  Dear all,
>
> When applying a Dirichlet boundary condition, is there a way to get a
> function that always returns a constant vector? For example, for var list
> of {0, 1, 2} we always return {2.3, 2.9, 3.5} for the three degrees of
> freedom at each node? It's just a function wrapper of:
>
>   DenseVector<Number> cv(3);
>   cv(0) = 2.3;
>   cv(1) = 2.9;
>   cv(2) = 3.5;
>
> If such a function would be helpful, we can help commit one.
>
> Thanks!
>
> Shawn
>
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