Re: [Libmesh-users] Nodes set from Generated mesh

[John P. <jwp...@gm...>]

On Mon, Feb 5, 2018 at 1:26 PM, Xiao Ma <xi...@il...> wrote:

> Hi All,
>
>
> I am wondering if the build in function MeshTools::Generation contains
> information about the node set,


It contains sidesets, but no nodesets.


> for example , 2D mesh, the top and bottom ,
> left and right  edge node set  ? and associated the element set ?
> If so , how to get access to these arrays .
>

This information is stored in the BoundaryInfo object.

mesh.get_boundary_info().build_side_list(...)

fills three passed-in vectors with elem-id, side-id, and bc-id information.

-- 
John