openfoam/tutorials/mesh/foamyHexMesh/flange/system/topoSetDict-slices

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

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

zSlice  -0.009;
ySlice  0.0;
xSlice  0.0;

actions
(
    {
        name    z;
        type    cellSet;
        action  new;
        source  boxToCell;
        sourceInfo
        {
            box (-100 -100 $zSlice)(100 100 100);
        }
    }

    {
        name    zf;
        type    faceSet;
        action  new;
        source  cellToFace;
        sourceInfo
        {
            set    z;
            option all;
        }
    }

    {
        name    z;
        type    cellSet;
        action  invert;
    }

    {
        name    zf;
        type    faceSet;
        action  subset;
        source  cellToFace;
        sourceInfo
        {
            set    z;
            option all;
        }
    }

    // ~~~~~~~~~~~~~~~~ //

    {
        name    y;
        type    cellSet;
        action  new;
        source  boxToCell;
        sourceInfo
        {
            box (-100 $ySlice -100)(100 100 100);
        }
    }

    {
        name    yf;
        type    faceSet;
        action  new;
        source  cellToFace;
        sourceInfo
        {
            set    y;
            option all;
        }
    }

    {
        name    y;
        type    cellSet;
        action  invert;
    }

    {
        name    yf;
        type    faceSet;
        action  subset;
        source  cellToFace;
        sourceInfo
        {
            set    y;
            option all;
        }
    }

    // ~~~~~~~~~~~~~~~~ //

    {
        name    x;
        type    cellSet;
        action  new;
        source  boxToCell;
        sourceInfo
        {
            box ($xSlice -100 -100)(100 100 100);
        }
    }

    {
        name    xf;
        type    faceSet;
        action  new;
        source  cellToFace;
        sourceInfo
        {
            set    x;
            option all;
        }
    }

    {
        name    x;
        type    cellSet;
        action  invert;
    }

    {
        name    xf;
        type    faceSet;
        action  subset;
        source  cellToFace;
        sourceInfo
        {
            set    x;
            option all;
        }
    }
);

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