/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2212                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      topoSetDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

actions
(
    {
        name    f0;
        type    faceSet;
        action  new;
        source  boxToFace;

        box     (-100 -100 -100) (1.01 1.01 1.01);
    }
    {
        name    f0;
        type    faceSet;
        action  subtract;
        source  boundaryToFace;
    }

    ////- Remove internal faces; do boundary faces only
    //{
    //    name    f0;
    //    type    faceSet;
    //    action  clear;
    //}

    //- Add single external face (min-z)
    {
        name    f0;
        type    faceSet;
        action  add;
        source  boxToFace;

        box     (-100 -100 -100) (1.01 1.01 0.01);
    }

    {
        name    c0;
        type    cellSet;
        action  new;
        source  nearestToCell;

        points  ((0.5 0.5 0.5));
    }
    {
        name    f0Zone;
        type    faceZoneSet;
        action  new;
        source  setsToFaceZone;

        faceSet f0;
        cellSet c0;
    }
);

// ************************************************************************* //