ENH: meshStructure: detect mesh structure

src/meshTools/Make/files

@@ -187,6 +187,9 @@ mappedPatches/mappedPolyPatch/mappedVariableThicknessWallPolyPatch.C
 mappedPatches/mappedPointPatch/mappedPointPatch.C
 mappedPatches/mappedPointPatch/mappedWallPointPatch.C
 
+meshStructure/meshStructure.C
+meshStructure/topoDistanceData.C
+meshStructure/pointTopoDistanceData.C
 
 regionCoupled/patches/regionCoupledPolyPatch/regionCoupledBase.C
 regionCoupled/patches/regionCoupledPolyPatch/regionCoupledPolyPatch.C

src/meshTools/meshStructure/meshStructure.C

@@ -0,0 +1,387 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 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 "meshStructure.H"
+#include "FaceCellWave.H"
+#include "topoDistanceData.H"
+#include "pointTopoDistanceData.H"
+#include "PointEdgeWave.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+defineTypeNameAndDebug(meshStructure, 0);
+}
+
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+bool Foam::meshStructure::isStructuredCell
+(
+    const polyMesh& mesh,
+    const label layerI,
+    const label cellI
+) const
+{
+    const cell& cFaces = mesh.cells()[cellI];
+
+    // Count number of side faces
+    label nSide = 0;
+    forAll(cFaces, i)
+    {
+        if (faceToPatchEdgeAddressing_[cFaces[i]] != -1)
+        {
+            nSide++;
+        }
+    }
+
+    if (nSide != cFaces.size()-2)
+    {
+        return false;
+    }
+
+    // Check that side faces have correct point layers
+    forAll(cFaces, i)
+    {
+        if (faceToPatchEdgeAddressing_[cFaces[i]] != -1)
+        {
+            const face& f = mesh.faces()[cFaces[i]];
+
+            label nLayer = 0;
+            label nLayerPlus1 = 0;
+            forAll(f, fp)
+            {
+                label pointI = f[fp];
+                if (pointLayer_[pointI] == layerI)
+                {
+                    nLayer++;
+                }
+                else if (pointLayer_[pointI] == layerI+1)
+                {
+                    nLayerPlus1++;
+                }
+            }
+
+            if (f.size() != 4 || (nLayer+nLayerPlus1 != 4))
+            {
+                return false;
+            }
+        }
+    }
+
+    return true;
+}
+
+
+void Foam::meshStructure::correct
+(
+    const polyMesh& mesh,
+    const uindirectPrimitivePatch& pp
+)
+{
+    // Field on cells and faces.
+    List<topoDistanceData> cellData(mesh.nCells());
+    List<topoDistanceData> faceData(mesh.nFaces());
+
+    {
+        if (debug)
+        {
+            Info<< typeName << " : seeding "
+                << returnReduce(pp.size(), sumOp<label>()) << " patch faces"
+                << nl << endl;
+        }
+
+
+        // Start of changes
+        labelList patchFaces(pp.size());
+        List<topoDistanceData> patchData(pp.size());
+        forAll(pp, patchFaceI)
+        {
+            patchFaces[patchFaceI] = pp.addressing()[patchFaceI];
+            patchData[patchFaceI] = topoDistanceData(patchFaceI, 0);
+        }
+
+
+        // Propagate information inwards
+        FaceCellWave<topoDistanceData> distanceCalc
+        (
+            mesh,
+            patchFaces,
+            patchData,
+            faceData,
+            cellData,
+            mesh.globalData().nTotalCells()+1
+        );
+
+
+        // Determine cells from face-cell-walk
+        // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+        cellToPatchFaceAddressing_.setSize(mesh.nCells());
+        cellLayer_.setSize(mesh.nCells());
+        forAll(cellToPatchFaceAddressing_, cellI)
+        {
+            cellToPatchFaceAddressing_[cellI] = cellData[cellI].data();
+            cellLayer_[cellI] = cellData[cellI].distance();
+        }
+
+
+
+        // Determine faces from face-cell-walk
+        // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+        faceToPatchFaceAddressing_.setSize(mesh.nFaces());
+        faceToPatchEdgeAddressing_.setSize(mesh.nFaces());
+        faceToPatchEdgeAddressing_ = labelMin;
+        faceLayer_.setSize(mesh.nFaces());
+
+        forAll(faceToPatchFaceAddressing_, faceI)
+        {
+            label own = mesh.faceOwner()[faceI];
+            label patchFaceI = faceData[faceI].data();
+            label patchDist = faceData[faceI].distance();
+
+            if (mesh.isInternalFace(faceI))
+            {
+                label nei = mesh.faceNeighbour()[faceI];
+
+                if (cellData[own].distance() == cellData[nei].distance())
+                {
+                    // side face
+                    faceToPatchFaceAddressing_[faceI] = 0;
+                    faceLayer_[faceI] = cellData[own].distance();
+                }
+                else if (cellData[own].distance() < cellData[nei].distance())
+                {
+                    // unturned face
+                    faceToPatchFaceAddressing_[faceI] = patchFaceI+1;
+                    faceToPatchEdgeAddressing_[faceI] = -1;
+                    faceLayer_[faceI] = patchDist;
+                }
+                else
+                {
+                    // turned face
+                    faceToPatchFaceAddressing_[faceI] = -(patchFaceI+1);
+                    faceToPatchEdgeAddressing_[faceI] = -1;
+                    faceLayer_[faceI] = patchDist;
+                }
+            }
+            else if (patchDist == cellData[own].distance())
+            {
+                // starting face
+                faceToPatchFaceAddressing_[faceI] = -(patchFaceI+1);
+                faceToPatchEdgeAddressing_[faceI] = -1;
+                faceLayer_[faceI] = patchDist;
+            }
+            else
+            {
+                // unturned face or side face. Cannot be determined until
+                // we determine the point layers. Problem is that both are
+                // the same number of steps away from the initial seed face.
+            }
+        }
+    }
+
+
+    // Determine points from separate walk on point-edge
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    {
+        pointToPatchPointAddressing_.setSize(mesh.nPoints());
+        pointLayer_.setSize(mesh.nPoints());
+
+        if (debug)
+        {
+            Info<< typeName << " : seeding "
+                << returnReduce(pp.nPoints(), sumOp<label>()) << " patch points"
+                << nl << endl;
+        }
+
+        // Field on edges and points.
+        List<pointTopoDistanceData> edgeData(mesh.nEdges());
+        List<pointTopoDistanceData> pointData(mesh.nPoints());
+
+        // Start of changes
+        labelList patchPoints(pp.nPoints());
+        List<pointTopoDistanceData> patchData(pp.nPoints());
+        forAll(pp.meshPoints(), patchPointI)
+        {
+            patchPoints[patchPointI] = pp.meshPoints()[patchPointI];
+            patchData[patchPointI] = pointTopoDistanceData(patchPointI, 0);
+        }
+
+
+        // Walk
+        PointEdgeWave<pointTopoDistanceData> distanceCalc
+        (
+            mesh,
+            patchPoints,
+            patchData,
+
+            pointData,
+            edgeData,
+            mesh.globalData().nTotalPoints()  // max iterations
+        );
+
+        forAll(pointData, pointI)
+        {
+            pointToPatchPointAddressing_[pointI] = pointData[pointI].data();
+            pointLayer_[pointI] = pointData[pointI].distance();
+        }
+
+
+        // Derive from originating patch points what the patch edges were.
+        EdgeMap<label> pointsToEdge(pp.nEdges());
+        forAll(pp.edges(), edgeI)
+        {
+            pointsToEdge.insert(pp.edges()[edgeI], edgeI);
+        }
+
+        // Look up on faces
+        forAll(faceToPatchEdgeAddressing_, faceI)
+        {
+            if (faceToPatchEdgeAddressing_[faceI] == labelMin)
+            {
+                // Face not yet done. Check if all points on same level
+                // or if not see what edge it originates from
+
+                const face& f = mesh.faces()[faceI];
+
+                label levelI = pointLayer_[f[0]];
+                for (label fp = 1; fp < f.size(); fp++)
+                {
+                    if (pointLayer_[f[fp]] != levelI)
+                    {
+                        levelI = -1;
+                        break;
+                    }
+                }
+
+                if (levelI != -1)
+                {
+                    // All same level
+                    //Pout<< "Horizontal boundary face " << faceI
+                    //    << " at:" << mesh.faceCentres()[faceI]
+                    //    << " data:" << faceData[faceI]
+                    //    << " pointDatas:"
+                    //    << UIndirectList<pointTopoDistanceData>(pointData, f)
+                    //    << endl;
+
+                    label patchFaceI = faceData[faceI].data();
+                    label patchDist = faceData[faceI].distance();
+
+                    faceToPatchEdgeAddressing_[faceI] = -1;
+                    faceToPatchFaceAddressing_[faceI] = patchFaceI+1;
+                    faceLayer_[faceI] = patchDist;
+                }
+                else
+                {
+                    // Points of face on different levels
+
+                    // See if there is any edge
+                    forAll(f, fp)
+                    {
+                        label pointI = f[fp];
+                        label nextPointI = f.nextLabel(fp);
+
+                        EdgeMap<label>::const_iterator fnd = pointsToEdge.find
+                        (
+                            edge
+                            (
+                                pointData[pointI].data(),
+                                pointData[nextPointI].data()
+                            )
+                        );
+                        if (fnd != pointsToEdge.end())
+                        {
+                            faceToPatchEdgeAddressing_[faceI] = fnd();
+                            faceToPatchFaceAddressing_[faceI] = 0;
+                            label own = mesh.faceOwner()[faceI];
+                            faceLayer_[faceI] = cellData[own].distance();
+
+                            // Note: could test whether the other edges on the
+                            // face are consistent
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+
+
+    // Use maps to find out mesh structure.
+    {
+        label nLayers = gMax(cellLayer_)+1;
+        labelListList layerToCells(invertOneToMany(nLayers, cellLayer_));
+
+        structured_ = true;
+        forAll(layerToCells, layerI)
+        {
+            const labelList& lCells = layerToCells[layerI];
+
+            forAll(lCells, lCellI)
+            {
+                label cellI = lCells[lCellI];
+
+                structured_ = isStructuredCell
+                (
+                    mesh,
+                    layerI,
+                    cellI
+                );
+
+                if (!structured_)
+                {
+                    break;
+                }
+            }
+
+            if (!structured_)
+            {
+                break;
+            }
+        }
+
+        reduce(structured_, andOp<bool>());
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::meshStructure::meshStructure
+(
+    const polyMesh& mesh,
+    const uindirectPrimitivePatch& pp
+)
+{
+    correct(mesh, pp);
+}
+
+
+// ************************************************************************* //

src/meshTools/meshStructure/meshStructure.H

@@ -0,0 +1,175 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 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::meshStructure
+
+Description
+    Detect extruded mesh structure given a set of patch faces.
+
+SourceFiles
+    meshStructure.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef meshStructure_H
+#define meshStructure_H
+
+#include "labelList.H"
+#include "uindirectPrimitivePatch.H"
+#include "className.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// Forward declaration of classes
+class polyMesh;
+
+
+/*---------------------------------------------------------------------------*\
+                         Class meshStructure Declaration
+\*---------------------------------------------------------------------------*/
+
+class meshStructure
+{
+    // Private data
+
+        //- Cell to patch face
+        labelList cellToPatchFaceAddressing_;
+
+        //- Cell to layer
+        labelList cellLayer_;
+
+        //- Face to patch face
+        labelList faceToPatchFaceAddressing_;
+
+        //- Face to patch edge
+        labelList faceToPatchEdgeAddressing_;
+
+        //- Face to layer
+        labelList faceLayer_;
+
+        //- Point to patch point
+        labelList pointToPatchPointAddressing_;
+
+        //- Point to layer
+        labelList pointLayer_;
+
+        //- Is mesh structured?
+        bool structured_;
+
+
+   // Private Member Functions
+
+        //- Is cell structured
+        bool isStructuredCell
+        (
+            const polyMesh& mesh,
+            const label layerI,
+            const label cellI
+        ) const;
+
+        //- Calculate all maps.
+        void correct
+        (
+            const polyMesh& mesh,
+            const uindirectPrimitivePatch& pp
+        );
+
+
+public:
+
+    // Declare name of the class and its debug switch
+    ClassName("meshStructure");
+
+    // Constructors
+
+        //- Construct null
+        meshStructure(const polyMesh& mesh, const uindirectPrimitivePatch&);
+
+
+    // Member Functions
+
+        //- Is mesh structured?
+        inline bool structured() const;
+
+        //- Cell to patch face
+        inline const labelList& cellToPatchFaceAddressing() const;
+
+        //- Cell to patch face
+        inline labelList& cellToPatchFaceAddressing();
+
+        //- Cell to layer
+        inline const labelList& cellLayer() const;
+
+        //- Cell to layer
+        inline labelList& cellLayer();
+
+        //- Face to patch face
+        inline const labelList& faceToPatchFaceAddressing() const;
+
+        //- Face to patch face
+        inline labelList& faceToPatchFaceAddressing();
+
+        //- Face to patch edge
+        inline const labelList& faceToPatchEdgeAddressing() const;
+
+        //- Face to patch edge
+        inline labelList& faceToPatchEdgeAddressing();
+
+        //- Face to layer
+        inline const labelList& faceLayer() const;
+
+        //- Face to layer
+        inline labelList& faceLayer();
+
+        //- Point to patch point
+        inline const labelList& pointToPatchPointAddressing() const;
+
+        //- Point to patch point
+        inline labelList& pointToPatchPointAddressing();
+
+        //- Point to layer
+        inline const labelList& pointLayer() const;
+
+        //- Point to layer
+        inline labelList& pointLayer();
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "meshStructureI.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/meshTools/meshStructure/meshStructureI.H

@@ -0,0 +1,120 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 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 "meshStructure.H"
+
+// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
+
+bool Foam::meshStructure::structured() const
+{
+    return structured_;
+}
+
+
+const Foam::labelList& Foam::meshStructure::cellToPatchFaceAddressing() const
+{
+    return cellToPatchFaceAddressing_;
+}
+
+
+Foam::labelList& Foam::meshStructure::cellToPatchFaceAddressing()
+{
+    return cellToPatchFaceAddressing_;
+}
+
+
+const Foam::labelList& Foam::meshStructure::cellLayer() const
+{
+    return cellLayer_;
+}
+
+
+Foam::labelList& Foam::meshStructure::cellLayer()
+{
+    return cellLayer_;
+}
+
+
+const Foam::labelList& Foam::meshStructure::faceToPatchFaceAddressing() const
+{
+    return faceToPatchFaceAddressing_;
+}
+
+
+Foam::labelList& Foam::meshStructure::faceToPatchFaceAddressing()
+{
+    return faceToPatchFaceAddressing_;
+}
+
+
+const Foam::labelList& Foam::meshStructure::faceToPatchEdgeAddressing() const
+{
+    return faceToPatchEdgeAddressing_;
+}
+
+
+Foam::labelList& Foam::meshStructure::faceToPatchEdgeAddressing()
+{
+    return faceToPatchEdgeAddressing_;
+}
+
+
+const Foam::labelList& Foam::meshStructure::faceLayer() const
+{
+    return faceLayer_;
+}
+
+
+Foam::labelList& Foam::meshStructure::faceLayer()
+{
+    return faceLayer_;
+}
+
+
+const Foam::labelList& Foam::meshStructure::pointToPatchPointAddressing() const
+{
+    return pointToPatchPointAddressing_;
+}
+
+
+Foam::labelList& Foam::meshStructure::pointToPatchPointAddressing()
+{
+    return pointToPatchPointAddressing_;
+}
+
+
+const Foam::labelList& Foam::meshStructure::pointLayer() const
+{
+    return pointLayer_;
+}
+
+
+Foam::labelList& Foam::meshStructure::pointLayer()
+{
+    return pointLayer_;
+}
+
+
+// ************************************************************************* //

src/meshTools/meshStructure/pointTopoDistanceData.C

@@ -0,0 +1,50 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 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 "pointTopoDistanceData.H"
+
+// * * * * * * * * * * * * * * * Friend Operators  * * * * * * * * * * * * * //
+
+Foam::Ostream& Foam::operator<<
+(
+    Foam::Ostream& os,
+    const Foam::pointTopoDistanceData& wDist
+)
+{
+    return os << wDist.data_ << token::SPACE << wDist.distance_;
+}
+
+
+Foam::Istream& Foam::operator>>
+(
+    Foam::Istream& is,
+    Foam::pointTopoDistanceData& wDist
+)
+{
+    return is >> wDist.data_ >> wDist.distance_;
+}
+
+
+// ************************************************************************* //

src/meshTools/meshStructure/pointTopoDistanceData.H

@@ -0,0 +1,227 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 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::pointTopoDistanceData
+
+Description
+    For use with PointEdgeWave. Determines topological distance to
+    starting points
+
+SourceFiles
+    pointTopoDistanceDataI.H
+    pointTopoDistanceData.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef pointTopoDistanceData_H
+#define pointTopoDistanceData_H
+
+#include "point.H"
+#include "tensor.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class polyPatch;
+class polyMesh;
+
+/*---------------------------------------------------------------------------*\
+                       Class pointTopoDistanceData Declaration
+\*---------------------------------------------------------------------------*/
+
+class pointTopoDistanceData
+{
+    // Private data
+
+        //- Starting data
+        label data_;
+
+        //- Distance
+        label distance_;
+
+
+public:
+
+    // Constructors
+
+        //- Construct null
+        inline pointTopoDistanceData();
+
+        //- Construct from count
+        inline pointTopoDistanceData
+        (
+            const label data,
+            const label distance
+        );
+
+
+    // Member Functions
+
+        // Access
+
+
+            inline label data() const
+            {
+                return data_;
+            }
+            inline label distance() const
+            {
+                return distance_;
+            }
+
+
+        // Needed by PointEdgeWave
+
+
+            //- Check whether origin has been changed at all or
+            //  still contains original (invalid) value.
+            template<class TrackingData>
+            inline bool valid(TrackingData& td) const;
+
+            //- Check for identical geometrical data. Used for cyclics checking.
+            template<class TrackingData>
+            inline bool sameGeometry
+            (
+                const pointTopoDistanceData&,
+                const scalar tol,
+                TrackingData& td
+            ) const;
+
+            //- Convert origin to relative vector to leaving point
+            //  (= point coordinate)
+            template<class TrackingData>
+            inline void leaveDomain
+            (
+                const polyPatch& patch,
+                const label patchPointI,
+                const point& pos,
+                TrackingData& td
+            );
+
+            //- Convert relative origin to absolute by adding entering point
+            template<class TrackingData>
+            inline void enterDomain
+            (
+                const polyPatch& patch,
+                const label patchPointI,
+                const point& pos,
+                TrackingData& td
+            );
+
+            //- Apply rotation matrix to origin
+            template<class TrackingData>
+            inline void transform
+            (
+                const tensor& rotTensor,
+                TrackingData& td
+            );
+
+            //- Influence of edge on point
+            template<class TrackingData>
+            inline bool updatePoint
+            (
+                const polyMesh& mesh,
+                const label pointI,
+                const label edgeI,
+                const pointTopoDistanceData& edgeInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Influence of different value on same point.
+            //  Merge new and old info.
+            template<class TrackingData>
+            inline bool updatePoint
+            (
+                const polyMesh& mesh,
+                const label pointI,
+                const pointTopoDistanceData& newPointInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Influence of different value on same point.
+            //  No information about current position whatsoever.
+            template<class TrackingData>
+            inline bool updatePoint
+            (
+                const pointTopoDistanceData& newPointInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Influence of point on edge.
+            template<class TrackingData>
+            inline bool updateEdge
+            (
+                const polyMesh& mesh,
+                const label edgeI,
+                const label pointI,
+                const pointTopoDistanceData& pointInfo,
+                const scalar tol,
+                TrackingData& td
+            );
+
+            //- Same (like operator==)
+            template<class TrackingData>
+            inline bool equal(const pointTopoDistanceData&, TrackingData&)
+            const;
+
+
+    // Member Operators
+
+        // Needed for List IO
+        inline bool operator==(const pointTopoDistanceData&) const;
+        inline bool operator!=(const pointTopoDistanceData&) const;
+
+    // IOstream Operators
+
+        friend Ostream& operator<<(Ostream&, const pointTopoDistanceData&);
+        friend Istream& operator>>(Istream&, pointTopoDistanceData&);
+};
+
+
+//- Data associated with pointTopoDistanceData type are contiguous
+template<>
+inline bool contiguous<pointTopoDistanceData>()
+{
+    return true;
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#include "pointTopoDistanceDataI.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/meshTools/meshStructure/pointTopoDistanceDataI.H

@@ -0,0 +1,233 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 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 "polyMesh.H"
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+// Null constructor
+inline Foam::pointTopoDistanceData::pointTopoDistanceData()
+:
+    data_(-1),
+    distance_(-1)
+{}
+
+
+// Construct from components
+inline Foam::pointTopoDistanceData::pointTopoDistanceData
+(
+    const label data,
+    const label distance
+)
+:
+    data_(data),
+    distance_(distance)
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template <class TrackingData>
+inline bool Foam::pointTopoDistanceData::valid(TrackingData& td) const
+{
+    return distance_ != -1;
+}
+
+
+// No geometric data so never any problem on cyclics
+template <class TrackingData>
+inline bool Foam::pointTopoDistanceData::sameGeometry
+(
+    const pointTopoDistanceData&,
+    const scalar tol,
+    TrackingData& td
+) const
+{
+    return true;
+}
+
+
+// No geometric data.
+template <class TrackingData>
+inline void Foam::pointTopoDistanceData::leaveDomain
+(
+    const polyPatch& patch,
+    const label patchPointI,
+    const point& coord,
+    TrackingData& td
+)
+{}
+
+
+// No geometric data.
+template <class TrackingData>
+inline void Foam::pointTopoDistanceData::transform
+(
+    const tensor& rotTensor,
+    TrackingData& td
+)
+{}
+
+
+// No geometric data.
+template <class TrackingData>
+inline void Foam::pointTopoDistanceData::enterDomain
+(
+    const polyPatch& patch,
+    const label patchPointI,
+    const point& coord,
+    TrackingData& td
+)
+{}
+
+
+// Update this with information from connected edge
+template <class TrackingData>
+inline bool Foam::pointTopoDistanceData::updatePoint
+(
+    const polyMesh& mesh,
+    const label pointI,
+    const label edgeI,
+    const pointTopoDistanceData& edgeInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    if (distance_ == -1)
+    {
+        data_ = edgeInfo.data_;
+        distance_ = edgeInfo.distance_ + 1;
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+// Update this with new information on same point
+template<class TrackingData>
+inline bool Foam::pointTopoDistanceData::updatePoint
+(
+    const polyMesh& mesh,
+    const label pointI,
+    const pointTopoDistanceData& newPointInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    if (distance_ == -1)
+    {
+        operator=(newPointInfo);
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+// Update this with new information on same point. No extra information.
+template<class TrackingData>
+inline bool Foam::pointTopoDistanceData::updatePoint
+(
+    const pointTopoDistanceData& newPointInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    if (distance_ == -1)
+    {
+        operator=(newPointInfo);
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+// Update this with information from connected point
+template<class TrackingData>
+inline bool Foam::pointTopoDistanceData::updateEdge
+(
+    const polyMesh& mesh,
+    const label edgeI,
+    const label pointI,
+    const pointTopoDistanceData& pointInfo,
+    const scalar tol,
+    TrackingData& td
+)
+{
+    if (distance_ == -1)
+    {
+        operator=(pointInfo);
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+template <class TrackingData>
+inline bool Foam::pointTopoDistanceData::equal
+(
+    const pointTopoDistanceData& rhs,
+    TrackingData& td
+) const
+{
+    return operator==(rhs);
+}
+
+
+// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
+
+inline bool Foam::pointTopoDistanceData::operator==
+(
+    const Foam::pointTopoDistanceData& rhs
+) const
+{
+    return data() == rhs.data() && distance() == rhs.distance();
+}
+
+
+inline bool Foam::pointTopoDistanceData::operator!=
+(
+    const Foam::pointTopoDistanceData& rhs
+) const
+{
+    return !(*this == rhs);
+}
+
+
+// ************************************************************************* //

src/meshTools/meshStructure/topoDistanceData.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) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License

src/meshTools/meshStructure/topoDistanceData.H

@@ -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) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License

src/parallel/decompose/decompositionMethods/Make/files

@@ -4,7 +4,6 @@ simpleGeomDecomp/simpleGeomDecomp.C
 hierarchGeomDecomp/hierarchGeomDecomp.C
 manualDecomp/manualDecomp.C
 multiLevelDecomp/multiLevelDecomp.C
-structuredDecomp/topoDistanceData.C
 structuredDecomp/structuredDecomp.C
 noDecomp/noDecomp.C