ENH: subsetMesh: have -cellSet and -dict argument

applications/utilities/mesh/manipulation/subsetMesh/Make/files

@@ -1,3 +1,6 @@
+cellSelection/cellSelection.C
+cellSelection/badQualityCellSelection.C
+cellSelection/outsideCellSelection.C
 subsetMesh.C
 
 EXE = $(FOAM_APPBIN)/subsetMesh

applications/utilities/mesh/manipulation/subsetMesh/Make/options

@@ -1,8 +1,11 @@
 EXE_INC = \
+    -IcellSelection \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
+    -I$(LIB_SRC)/dynamicMesh/lnInclude \
     -I$(LIB_SRC)/meshTools/lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \
+    -ldynamicMesh \
     -lmeshTools \
     -lgenericPatchFields

applications/utilities/mesh/manipulation/subsetMesh/cellSelection/badQualityCellSelection.C

@@ -0,0 +1,95 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "badQualityCellSelection.H"
+#include "addToRunTimeSelectionTable.H"
+#include "faceSet.H"
+#include "polyMesh.H"
+#include "motionSmoother.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace cellSelections
+{
+    defineTypeNameAndDebug(badQualityCellSelection, 0);
+    addToRunTimeSelectionTable
+    (
+        cellSelection,
+        badQualityCellSelection,
+        dictionary
+    );
+}
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::cellSelections::badQualityCellSelection::badQualityCellSelection
+(
+    const word& name,
+    const polyMesh& mesh,
+    const dictionary& dict
+)
+:
+    cellSelection(name, mesh, dict)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::cellSelections::badQualityCellSelection::~badQualityCellSelection()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::cellSelections::badQualityCellSelection::select
+(
+    boolList& selectedCell
+) const
+{
+    //- Delete cell of any face in error
+    faceSet faces(mesh_, "meshQualityFaces", mesh_.nFaces()/100+1);
+    motionSmoother::checkMesh(false, mesh_, dict_, faces);
+    label nFaces = returnReduce(faces.size(), sumOp<label>());
+    if (nFaces > 0)
+    {
+        faces.sync(mesh_);
+        forAllConstIter(faceSet, faces, iter)
+        {
+            label faceI = iter.key();
+            selectedCell[mesh_.faceOwner()[faceI]] = false;
+            if (mesh_.isInternalFace(faceI))
+            {
+                selectedCell[mesh_.faceNeighbour()[faceI]] = false;
+            }
+        }
+    }
+}
+
+
+// ************************************************************************* //

applications/utilities/mesh/manipulation/subsetMesh/cellSelection/badQualityCellSelection.H

@@ -0,0 +1,101 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::cellSelections::badQualityCellSelection
+
+Description
+    Deselect bad quality cells
+
+SourceFiles
+    badQualityCellSelection.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef badQualityCellSelection_H
+#define badQualityCellSelection_H
+
+#include "cellSelection.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+namespace cellSelections
+{
+
+/*---------------------------------------------------------------------------*\
+                     Class badQualityCellSelection Declaration
+\*---------------------------------------------------------------------------*/
+
+class badQualityCellSelection
+:
+    public cellSelection
+{
+
+public:
+
+    //- Runtime type information
+    TypeName("badQuality");
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        badQualityCellSelection
+        (
+            const word& name,
+            const polyMesh& mesh,
+            const dictionary& dict
+        );
+
+        //- Clone
+        autoPtr<cellSelection> clone() const
+        {
+            notImplemented("autoPtr<cellSelection> clone() const");
+            return autoPtr<cellSelection>(NULL);
+        }
+
+
+    //- Destructor
+    virtual ~badQualityCellSelection();
+
+
+    // Member Functions
+
+        virtual void select(boolList&) const;
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace cellSelections
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

applications/utilities/mesh/manipulation/subsetMesh/cellSelection/cellSelection.C

@@ -0,0 +1,104 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "cellSelection.H"
+#include "polyMesh.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(cellSelection, 0);
+    defineRunTimeSelectionTable(cellSelection, dictionary);
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::cellSelection::cellSelection
+(
+    const word& name,
+    const polyMesh& mesh,
+    const dictionary& dict
+)
+:
+    name_(name),
+    mesh_(mesh),
+    dict_(dict)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::cellSelection::~cellSelection()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+Foam::autoPtr<Foam::cellSelection> Foam::cellSelection::New
+(
+    const word& name,
+    const polyMesh& mesh,
+    const dictionary& dict
+)
+{
+    const word sampleType(dict.lookup("type"));
+
+    dictionaryConstructorTable::iterator cstrIter =
+        dictionaryConstructorTablePtr_->find(sampleType);
+
+    if (cstrIter == dictionaryConstructorTablePtr_->end())
+    {
+        FatalErrorIn
+        (
+            "cellSelection::New"
+            "(const word&, const polyMesh&, const dictionary&)"
+        )   << "Unknown cellSelection type "
+            << sampleType << nl << nl
+            << "Valid cellSelection types : " << endl
+            << dictionaryConstructorTablePtr_->sortedToc()
+            << exit(FatalError);
+    }
+
+    return autoPtr<cellSelection>(cstrIter()(name, mesh, dict));
+}
+
+
+Foam::label Foam::cellSelection::count(const boolList& lst)
+{
+    label n = 0;
+    forAll(lst, i)
+    {
+        if (lst[i])
+        {
+            n++;
+        }
+    }
+    return returnReduce(n, sumOp<label>());
+}
+
+
+// ************************************************************************* //

applications/utilities/mesh/manipulation/subsetMesh/cellSelection/cellSelection.H

@@ -0,0 +1,149 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::cellSelection
+
+Description
+    Cell selection methods in subsetMesh
+
+SourceFiles
+    cellSelection.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef cellSelection_H
+#define cellSelection_H
+
+#include "dictionary.H"
+#include "typeInfo.H"
+#include "runTimeSelectionTables.H"
+#include "autoPtr.H"
+#include "boolList.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// Forward declaration of classes
+class polyMesh;
+
+/*---------------------------------------------------------------------------*\
+                         Class cellSelection Declaration
+\*---------------------------------------------------------------------------*/
+
+class cellSelection
+{
+protected:
+
+    // Protected data
+
+        //- Name
+        const word name_;
+
+        //- Reference to mesh
+        const polyMesh& mesh_;
+
+        //- Input dictionary
+        const dictionary dict_;
+
+public:
+
+    //- Runtime type information
+    TypeName("cellSelection");
+
+
+    // Declare run-time constructor selection table
+
+        declareRunTimeSelectionTable
+        (
+            autoPtr,
+            cellSelection,
+            dictionary,
+            (
+                const word& name,
+                const polyMesh& mesh,
+                const dictionary& dict
+            ),
+            (name, mesh, dict)
+        );
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        cellSelection
+        (
+            const word& name,
+            const polyMesh& mesh,
+            const dictionary& dict
+        );
+
+        //- Clone
+        autoPtr<cellSelection> clone() const
+        {
+            notImplemented("autoPtr<cellSelection> clone() const");
+            return autoPtr<cellSelection>(NULL);
+        }
+
+
+    // Selectors
+
+        //- Return a reference to the selected cellSelection
+        static autoPtr<cellSelection> New
+        (
+            const word& name,
+            const polyMesh& mesh,
+            const dictionary& dict
+        );
+
+
+    //- Destructor
+    virtual ~cellSelection();
+
+
+    // Member Functions
+
+        //- Count global number of selected elements
+        static label count(const boolList&);
+
+        const word& name() const
+        {
+            return name_;
+        }
+
+        virtual void select(boolList&) const = 0;
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

applications/utilities/mesh/manipulation/subsetMesh/cellSelection/outsideCellSelection.C

@@ -0,0 +1,406 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "outsideCellSelection.H"
+#include "addToRunTimeSelectionTable.H"
+#include "faceSet.H"
+#include "polyMesh.H"
+#include "motionSmoother.H"
+#include "regionSplit.H"
+#include "syncTools.H"
+#include "zeroGradientFvPatchFields.H"
+
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace cellSelections
+{
+    defineTypeNameAndDebug(outsideCellSelection, 0);
+    addToRunTimeSelectionTable(cellSelection, outsideCellSelection, dictionary);
+}
+}
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+Foam::tmp<Foam::volScalarField>
+Foam::cellSelections::outsideCellSelection::generateField
+(
+    const word& name,
+    const boolList& lst
+) const
+{
+    const fvMesh& mesh = dynamic_cast<const fvMesh&>(mesh_);
+
+    tmp<volScalarField> tfld
+    (
+        new volScalarField
+        (
+            IOobject
+            (
+                name,
+                mesh.time().timeName(),
+                mesh,
+                IOobject::NO_READ,
+                IOobject::AUTO_WRITE
+            ),
+            mesh,
+            dimensionedScalar(name, dimless, 0),
+            zeroGradientFvPatchScalarField::typeName
+        )
+    );
+    scalarField& fld = tfld().internalField();
+
+    forAll(fld, celli)
+    {
+       fld[celli] = 1.0*lst[celli];
+    }
+    tfld().correctBoundaryConditions();
+
+    return tfld;
+}
+
+
+void Foam::cellSelections::outsideCellSelection::markRegionFaces
+(
+    const boolList& selectedCell,
+    boolList& regionFace
+) const
+{
+    // Internal faces
+    const labelList& faceOwner = mesh_.faceOwner();
+    const labelList& faceNeighbour = mesh_.faceNeighbour();
+    forAll(faceNeighbour, faceI)
+    {
+        if
+        (
+            selectedCell[faceOwner[faceI]]
+         != selectedCell[faceNeighbour[faceI]]
+        )
+        {
+            regionFace[faceI] = true;
+        }
+    }
+
+    // Swap neighbour selectedCell state
+    boolList nbrSelected;
+    syncTools::swapBoundaryCellList(mesh_, selectedCell, nbrSelected);
+
+    // Boundary faces
+    const polyBoundaryMesh& pbm = mesh_.boundaryMesh();
+    forAll(pbm, patchI)
+    {
+        const polyPatch& pp = pbm[patchI];
+        const labelUList& faceCells = pp.faceCells();
+        forAll(faceCells, i)
+        {
+            label faceI = pp.start()+i;
+            label bFaceI = faceI-mesh_.nInternalFaces();
+            if
+            (
+                selectedCell[faceCells[i]]
+             != selectedCell[nbrSelected[bFaceI]]
+            )
+            {
+                regionFace[faceI] = true;
+            }
+        }
+    }
+}
+
+
+Foam::boolList Foam::cellSelections::outsideCellSelection::findRegions
+(
+    const bool verbose,
+    const regionSplit& cellRegion
+) const
+{
+    boolList keepRegion(cellRegion.nRegions(), false);
+
+    forAll(locationsInMesh_, i)
+    {
+        // Find the region containing the insidePoint
+
+        label cellI = mesh_.findCell(locationsInMesh_[i]);
+
+        label keepRegionI = -1;
+        label keepProcI = -1;
+        if (cellI != -1)
+        {
+            keepRegionI = cellRegion[cellI];
+            keepProcI = Pstream::myProcNo();
+        }
+        reduce(keepRegionI, maxOp<label>());
+        keepRegion[keepRegionI] = true;
+
+        if (verbose)
+        {
+            reduce(keepProcI, maxOp<label>());
+
+            Info<< "Found location " << locationsInMesh_[i]
+                << " in cell " << cellI << " on processor " << keepProcI
+                << " in global region " << keepRegionI
+                << " out of " << cellRegion.nRegions() << " regions." << endl;
+        }
+    }
+
+    return keepRegion;
+}
+
+
+void Foam::cellSelections::outsideCellSelection::unselectOutsideRegions
+(
+    boolList& selectedCell
+) const
+{
+    // Determine faces on the edge of selectedCell
+    boolList blockedFace(mesh_.nFaces(), false);
+    markRegionFaces(selectedCell, blockedFace);
+
+    // Determine regions
+    regionSplit cellRegion(mesh_, blockedFace);
+
+    // Determine regions containing locationsInMesh_
+    boolList keepRegion(findRegions(true, cellRegion));
+
+    // Go back to bool per cell
+    forAll(cellRegion, cellI)
+    {
+        if (!keepRegion[cellRegion[cellI]])
+        {
+            selectedCell[cellI] = false;
+        }
+    }
+}
+
+
+void Foam::cellSelections::outsideCellSelection::shrinkRegions
+(
+    boolList& selectedCell
+) const
+{
+    // Select points on unselected cells and boundary
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    boolList boundaryPoint(mesh_.nPoints(), false);
+
+    const polyBoundaryMesh& pbm = mesh_.boundaryMesh();
+
+    forAll(pbm, patchI)
+    {
+        const polyPatch& pp = pbm[patchI];
+
+        if (!pp.coupled() && !isA<emptyPolyPatch>(pp))
+        {
+            forAll(pp, i)
+            {
+                const face& f = pp[i];
+                forAll(f, fp)
+                {
+                    boundaryPoint[f[fp]] = true;
+                }
+            }
+        }
+    }
+
+    forAll(selectedCell, cellI)
+    {
+        if (!selectedCell[cellI])
+        {
+            const labelList& cPoints = mesh_.cellPoints(cellI);
+            forAll(cPoints, i)
+            {
+                boundaryPoint[cPoints[i]] = true;
+            }
+        }
+    }
+
+    syncTools::syncPointList(mesh_, boundaryPoint, orEqOp<bool>(), false);
+
+
+    // Select all cells using these points
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    label nChanged = 0;
+    forAll(boundaryPoint, pointI)
+    {
+        if (boundaryPoint[pointI])
+        {
+            const labelList& pCells = mesh_.pointCells(pointI);
+            forAll(pCells, i)
+            {
+                label cellI = pCells[i];
+                if (selectedCell[cellI])
+                {
+                    selectedCell[cellI] = false;
+                    nChanged++;
+                }
+            }
+        }
+    }
+}
+
+
+void Foam::cellSelections::outsideCellSelection::erode
+(
+    boolList& selectedCell
+) const
+{
+    //Info<< "Entering shrinkRegions:" << count(selectedCell) << endl;
+    //generateField("selectedCell_before", selectedCell)().write();
+
+    // Now erode and see which regions get disconnected
+    boolList shrunkSelectedCell(selectedCell);
+
+    for (label iter = 0; iter < nErode_; iter++)
+    {
+        shrinkRegions(shrunkSelectedCell);
+    }
+
+    //Info<< "After shrinking:" << count(shrunkSelectedCell) << endl;
+    //generateField("shrunkSelectedCell", shrunkSelectedCell)().write();
+
+
+
+    // Determine faces on the edge of shrunkSelectedCell
+    boolList blockedFace(mesh_.nFaces(), false);
+    markRegionFaces(shrunkSelectedCell, blockedFace);
+
+    // Find disconnected regions
+    regionSplit cellRegion(mesh_, blockedFace);
+
+    // Determine regions containing insidePoints
+    boolList keepRegion(findRegions(true, cellRegion));
+
+
+    // Extract cells in regions that are not to be kept.
+    boolList removeCell(mesh_.nCells(), false);
+    forAll(cellRegion, cellI)
+    {
+        if (shrunkSelectedCell[cellI] && !keepRegion[cellRegion[cellI]])
+        {
+            removeCell[cellI] = true;
+        }
+    }
+
+    //Info<< "removeCell before:" << count(removeCell) << endl;
+    //generateField("removeCell_before", removeCell)().write();
+
+
+
+    // Grow removeCell
+    for (label iter = 0; iter < nErode_; iter++)
+    {
+        // Grow selected cell in regions that are not for keeping
+        boolList boundaryPoint(mesh_.nPoints(), false);
+        forAll(removeCell, cellI)
+        {
+            if (removeCell[cellI])
+            {
+                const labelList& cPoints = mesh_.cellPoints(cellI);
+                forAll(cPoints, i)
+                {
+                    boundaryPoint[cPoints[i]] = true;
+                }
+            }
+        }
+        syncTools::syncPointList(mesh_, boundaryPoint, orEqOp<bool>(), false);
+
+        // Select all cells using these points
+
+        label nChanged = 0;
+        forAll(boundaryPoint, pointI)
+        {
+            if (boundaryPoint[pointI])
+            {
+                const labelList& pCells = mesh_.pointCells(pointI);
+                forAll(pCells, i)
+                {
+                    label cellI = pCells[i];
+                    if (!removeCell[cellI])
+                    {
+                        removeCell[cellI] = true;
+                        nChanged++;
+                    }
+                }
+            }
+        }
+    }
+
+    //Info<< "removeCell after:" << count(removeCell) << endl;
+    //generateField("removeCell_after", removeCell)().write();
+
+
+    // Unmark removeCell
+    forAll(removeCell, cellI)
+    {
+        if (removeCell[cellI])
+        {
+            selectedCell[cellI] = false;
+        }
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::cellSelections::outsideCellSelection::outsideCellSelection
+(
+    const word& name,
+    const polyMesh& mesh,
+    const dictionary& dict
+)
+:
+    cellSelection(name, mesh, dict),
+    locationsInMesh_(dict.lookup("locationsInMesh")),
+    nErode_(readLabel(dict.lookup("nErodeLayers")))
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::cellSelections::outsideCellSelection::~outsideCellSelection()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::cellSelections::outsideCellSelection::select
+(
+    boolList& selectedCell
+) const
+{
+    // Unselect all disconnected regions
+    unselectOutsideRegions(selectedCell);
+
+    if (nErode_ > 0)
+    {
+        erode(selectedCell);
+    }
+}
+
+
+// ************************************************************************* //

applications/utilities/mesh/manipulation/subsetMesh/cellSelection/outsideCellSelection.H

@@ -0,0 +1,145 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::cellSelections::outsideCellSelection
+
+Description
+    Deselect cells not reachable from 'inside' points
+
+SourceFiles
+    outsideCellSelection.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef outsideCellSelection_H
+#define outsideCellSelection_H
+
+#include "cellSelection.H"
+#include "pointField.H"
+#include "boolList.H"
+#include "volFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class regionSplit;
+
+namespace cellSelections
+{
+
+/*---------------------------------------------------------------------------*\
+                     Class outsideCellSelection Declaration
+\*---------------------------------------------------------------------------*/
+
+class outsideCellSelection
+:
+    public cellSelection
+{
+    // Private data
+
+        //- Locations to keep
+        const pointField locationsInMesh_;
+
+        //- Number of layers to erode
+        const label nErode_;
+
+
+   // Private Member Functions
+
+        //- For debugging: generate volScalarField with 1.0 for all true
+        tmp<volScalarField> generateField
+        (
+            const word& name,
+            const boolList& lst
+        ) const;
+
+        //- Mark faces inbetween selected and unselected elements
+        void markRegionFaces
+        (
+            const boolList& selectedCell,
+            boolList& regionFace
+        ) const;
+
+        //- Determine for every disconnected region in the mesh whether
+        //  it contains a locationInMesh
+        boolList findRegions(const bool verbose, const regionSplit&) const;
+
+        //- Unselect regions not containing a locationInMesh
+        void unselectOutsideRegions(boolList& selectedCell) const;
+
+        //- Unselect one layer of cells from selectedCell
+        void shrinkRegions(boolList& selectedCell) const;
+
+        //- Erode a given number of layers from selectedCell. Remove any
+        //  region that gets disconnected that way.
+        void erode(boolList& selectedCell) const;
+
+public:
+
+    //- Runtime type information
+    TypeName("outside");
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        outsideCellSelection
+        (
+            const word& name,
+            const polyMesh& mesh,
+            const dictionary& dict
+        );
+
+        //- Clone
+        autoPtr<cellSelection> clone() const
+        {
+            notImplemented("autoPtr<cellSelection> clone() const");
+            return autoPtr<cellSelection>(NULL);
+        }
+
+
+    //- Destructor
+    virtual ~outsideCellSelection();
+
+
+    // Member Functions
+
+        //- Apply this selector
+        virtual void select(boolList&) const;
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace cellSelections
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

applications/utilities/mesh/manipulation/subsetMesh/subsetMesh.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -37,12 +37,12 @@ Description
 #include "cellSet.H"
 #include "IOobjectList.H"
 #include "volFields.H"
+#include "cellSelection.H"
 
 using namespace Foam;
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-
 template<class Type>
 void subsetVolFields
 (
@@ -152,12 +152,21 @@ int main(int argc, char *argv[])
 {
     argList::addNote
     (
-        "select a mesh subset based on a cellSet"
+        "select a mesh subset based on a provided cellSet and/or"
+        " selection criteria"
+    );
+    argList::addBoolOption
+    (
+        "dict",
+        "read mesh subset selection criteria"
+        " from system/subsetMeshDict"
+    );
+    argList::addOption
+    (
+        "cellSet",
+        "name",
+        "operates on specified cellSet name"
     );
-
-    #include "addOverwriteOption.H"
-    #include "addRegionOption.H"
-    argList::validArgs.append("cellSet");
     argList::addOption
     (
         "patch",
@@ -165,23 +174,81 @@ int main(int argc, char *argv[])
         "add exposed internal faces to specified patch instead of to "
         "'oldInternalFaces'"
     );
+
+    #include "addOverwriteOption.H"
+    #include "addRegionOption.H"
     #include "setRootCase.H"
     #include "createTime.H"
     runTime.functionObjects().off();
 
-    Foam::word meshRegionName = polyMesh::defaultRegion;
+    word setName;
-    args.optionReadIfPresent("region", meshRegionName);
+    const bool useCellSet = args.optionReadIfPresent("cellSet", setName);
+    const bool useDict = args.optionFound("dict");
+    const bool overwrite = args.optionFound("overwrite");
+
+    if (!useCellSet && !useDict)
+    {
+        FatalErrorIn(args.executable())
+            << "No cells to operate on selected. Please supply at least one of "
+            << "'-cellSet', '-dict'"
+            << exit(FatalError);
+    }
+
 
     #include "createNamedMesh.H"
 
-
     const word oldInstance = mesh.pointsInstance();
 
-    const word setName = args[1];
+    autoPtr<cellSet> currentSet;
-    const bool overwrite = args.optionFound("overwrite");
+    if (useCellSet)
+    {
+        // Load the cellSet
+        Info<< "Operating on cell set " << setName << nl << endl;
+        currentSet.reset(new cellSet(mesh, setName));
+    }
+
+    PtrList<cellSelection> selectors;
+    if (useDict)
+    {
+        Info<< "Reading selection criteria from subsetMeshDict" << nl << endl;
+        IOdictionary dict
+        (
+            IOobject
+            (
+                "subsetMeshDict",
+                mesh.time().system(),
+                mesh,
+                IOobject::MUST_READ,
+                IOobject::NO_WRITE
+            )
+        );
+
+        const dictionary& selectionsDict = dict.subDict("selections");
+
+        label n = 0;
+        forAllConstIter(dictionary, selectionsDict, iter)
+        {
+            if (iter().isDict())
+            {
+                n++;
+            }
+        }
+        selectors.setSize(n);
+        n = 0;
+        forAllConstIter(dictionary, selectionsDict, iter)
+        {
+            if (iter().isDict())
+            {
+                selectors.set
+                (
+                    n++,
+                    cellSelection::New(iter().keyword(), mesh, iter().dict())
+                );
+            }
+        }
+    }
 
 
-    Info<< "Reading cell set from " << setName << endl << endl;
 
     // Create mesh subsetting engine
     fvMeshSubset subsetter(mesh);
@@ -212,9 +279,54 @@ int main(int argc, char *argv[])
     }
 
 
-    cellSet currentSet(mesh, setName);
+    // Select cells to operate on
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    boolList selectedCell(mesh.nCells(), false);
+    if (currentSet.valid())
+    {
+        const cellSet& set = currentSet();
+        forAllConstIter(cellSet, set, iter)
+        {
+            selectedCell[iter.key()] = true;
+        }
+    }
+    else
+    {
+        selectedCell = true;
+    }
+
+
+    // Manipulate selectedCell according to dictionary
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    forAll(selectors, i)
+    {
+        Info<< "Applying cellSelector " << selectors[i].name() << endl;
+        selectors[i].select(selectedCell);
+
+        Info<< "After applying cellSelector " << selectors[i].name()
+            << " have " << cellSelection::count(selectedCell)
+            << " cells" << nl << endl;
+    }
+
+
+    // Back from selectedCells to region
+    {
+        Info<< "Final selection : " << cellSelection::count(selectedCell)
+            << " cells" << nl << endl;
+
+        labelList cellRegion(mesh.nCells(), -1);
+        forAll(selectedCell, cellI)
+        {
+            if (selectedCell[cellI])
+            {
+                cellRegion[cellI] = 0;
+            }
+        }
+        subsetter.setLargeCellSubset(cellRegion, 0, patchI, true);
+    }
 
-    subsetter.setLargeCellSubset(currentSet, patchI, true);
 
     IOobjectList objects(mesh, runTime.timeName());
 

applications/utilities/mesh/manipulation/subsetMesh/subsetMeshDict

@@ -0,0 +1,50 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      http://www.openfoam.org               |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "system";
+    object      subsetMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+//- Load snappyHexMeshDict settings so we can use some entries below.
+#include "./snappyHexMeshDict"
+
+
+selections
+{
+    badQuality
+    {
+        // Remove any cells using a 'bad quality' face. Uses the mesh checks
+        // used by snappyHexMesh, cvMesh.
+        type    badQuality;
+        // Use the quality criteria from the snappyHexMeshDict
+        ${.meshQualityControls}
+    }
+
+    outside
+    {
+        // Remove any cells not reachable from provided locations
+        type    outside;
+
+        //- Number of cell layers to erode mesh to detect holes in the mesh
+        //  Set to 0 if not used.
+        nErodeLayers 3;
+
+        //- Define mesh location for keeping.
+        //  In this case use the one from snappyHexMeshDict. This can
+        //  optionally be a list of locations.
+        locationsInMesh (${.castellatedMeshControls.locationInMesh});
+    }
+}
+
+
+// ************************************************************************* //

tutorials/incompressible/potentialFreeSurfaceFoam/oscillatingBox/Allrun

@@ -9,7 +9,7 @@ application=`getApplication`
 
 runApplication blockMesh
 runApplication topoSet
-runApplication subsetMesh -overwrite c0 -patch floatingObject
+runApplication subsetMesh -overwrite -cellSet c0 -patch floatingObject
 cp -r 0.org 0 > /dev/null 2>&1
 
 runApplication $application

tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/Allrun.pre

@@ -13,7 +13,7 @@ runApplication blockMesh
 runApplication topoSet
 
 # create the obstacles - add obstacle patches to wallFilm patch
-runApplication subsetMesh c0 -patch wallFilm -overwrite
+runApplication subsetMesh -cellSet c0 -patch wallFilm -overwrite
 
 # split the obstacle patches into cube[1-6]_patch[1-6]
 echo "running patchifyObstacles"

tutorials/mesh/cvMesh/flange/Allrun

@@ -14,7 +14,7 @@ runApplication surfaceFeatureExtract
 runApplication blockMesh
 runApplication topoSet -dict system/topoSetDict-background
 mv log.topoSet log.topoSet.background
-runApplication subsetMesh background -patch walls -overwrite
+runApplication subsetMesh -cellSet background -patch walls -overwrite
 
 runApplication decomposePar
 

tutorials/mesh/moveDynamicMesh/simpleHarmonicMotion/Allrun

@@ -10,7 +10,7 @@ application=`getApplication`
 
 runApplication blockMesh
 runApplication topoSet
-runApplication subsetMesh -overwrite c0 -patch movingBlock
+runApplication subsetMesh -overwrite -cellSet c0 -patch movingBlock
 cp -r 0.org 0 > /dev/null 2>&1
 runApplication $application
 ./extractData log.$application

tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/Allrun

@@ -8,7 +8,7 @@ cp -r 0.org 0 > /dev/null 2>&1
 runApplication blockMesh
 #runApplication setSet -batch createObstacle.setSet
 runApplication topoSet
-runApplication subsetMesh -overwrite c0 -patch walls
+runApplication subsetMesh -overwrite -cellSet c0 -patch walls
 runApplication setFields
 runApplication `getApplication`
 

tutorials/multiphase/interDyMFoam/ras/floatingObject/Allrun

@@ -9,7 +9,7 @@ application=`getApplication`
 
 runApplication blockMesh
 runApplication topoSet
-runApplication subsetMesh -overwrite c0 -patch floatingObject
+runApplication subsetMesh -overwrite -cellSet c0 -patch floatingObject
 cp -r 0.org 0 > /dev/null 2>&1
 runApplication setFields
 runApplication $application