Hi Markus

It's a cube, but within it is another subdomain. Ideally, this subdomain is
what I want to work with.

I could use all the points in the cube, and set the values of points outside
the subdomain to a constant value, but I just wondered if there was a way to
exclude these and save some computation.

Ted


On 29 November 2010 23:46, Markus Bürg <[email protected]> wrote:

>  Hello Ted,
>
> why do you want to exclude degrees of freedom from your computation? The
> more degrees of freedom you use the more accurate is your solution. Or are
> we leading the wrong way? How does your real geometry look like? Isn't it a
> cube?
>
> Best Regards,
> Markus
>
>
>
> Am 30.11.10 00:29, schrieb Ted Kord:
>
> Hi
>
>  I beg your indulgence again.
>
>  When the mesh is created using GridGenerator::hyper_rectangle, there will
> be n_dofs. Some of these will be empty space in the box/cuboid, i.e., not
> part of the actual geometry. What do I do with these? How do I exclude these
> from the solution vector? How can I avoid any computation on these?
>
>  Ted
>
>
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