diff --git a/applications/solvers/heatTransfer/chtMultiRegionFoam/derivedFvPatchFields/solidWallMixedTemperatureCoupled/solidWallMixedTemperatureCoupledFvPatchScalarField.H b/applications/solvers/heatTransfer/chtMultiRegionFoam/derivedFvPatchFields/solidWallMixedTemperatureCoupled/solidWallMixedTemperatureCoupledFvPatchScalarField.H
index 5a78299a7a..34c32b1abf 100644
--- a/applications/solvers/heatTransfer/chtMultiRegionFoam/derivedFvPatchFields/solidWallMixedTemperatureCoupled/solidWallMixedTemperatureCoupledFvPatchScalarField.H
+++ b/applications/solvers/heatTransfer/chtMultiRegionFoam/derivedFvPatchFields/solidWallMixedTemperatureCoupled/solidWallMixedTemperatureCoupledFvPatchScalarField.H
@@ -103,8 +103,8 @@ public:
             const dictionary&
         );
 
-        //- Construct by mapping given solidWallMixedTemperatureCoupledFvPatchScalarField
-        //  onto a new patch
+        //- Construct by mapping given
+        //  solidWallMixedTemperatureCoupledFvPatchScalarField onto a new patch
         solidWallMixedTemperatureCoupledFvPatchScalarField
         (
             const solidWallMixedTemperatureCoupledFvPatchScalarField&,
diff --git a/etc/controlDict b/etc/controlDict
index 5cbe331fe5..65058af1a6 100644
--- a/etc/controlDict
+++ b/etc/controlDict
@@ -360,7 +360,7 @@ DebugSwitches
     diagonal            0;
     dictionary          0;
     dimensionSet        1;
-    directMapped        0;
+    directMappedBase    0;
     directMappedPatch   0;
     directMappedVelocityFlux 0;
     directionMixed      0;
diff --git a/src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.H b/src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.H
index 4687c8a4b1..3ccf810476 100644
--- a/src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.H
+++ b/src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.H
@@ -131,18 +131,36 @@ public:
                 return constructSize_;
             }
 
+            //- Constructed data size
+            label& constructSize()
+            {
+                return constructSize_;
+            }
+
             //- From subsetted data back to original data
             const labelListList& subMap() const
             {
                 return subMap_;
             }
 
+            //- From subsetted data back to original data
+            labelListList& subMap()
+            {
+                return subMap_;
+            }
+
             //- From subsetted data to new reconstructed data
             const labelListList& constructMap() const
             {
                 return constructMap_;
             }
 
+            //- From subsetted data to new reconstructed data
+            labelListList& constructMap()
+            {
+                return constructMap_;
+            }
+
             //- Calculate a schedule. See above.
             static List<labelPair> schedule
             (
diff --git a/src/finiteVolume/Make/files b/src/finiteVolume/Make/files
index 99f3085854..1ad24ecd16 100644
--- a/src/finiteVolume/Make/files
+++ b/src/finiteVolume/Make/files
@@ -24,6 +24,7 @@ $(constraintFvPatches)/processor/processorFvPatch.C
 derivedFvPatches = $(fvPatches)/derived
 $(derivedFvPatches)/wall/wallFvPatch.C
 $(derivedFvPatches)/directMapped/directMappedFvPatch.C
+$(derivedFvPatches)/directMapped/directMappedWallFvPatch.C
 
 wallDist = fvMesh/wallDist
 $(wallDist)/wallPointYPlus/wallPointYPlus.C
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.C b/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.C
index 5322cbf47b..0c3bf43408 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.C
+++ b/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.C
@@ -25,7 +25,7 @@ License
 \*---------------------------------------------------------------------------*/
 
 #include "directMappedFixedValueFvPatchField.H"
-#include "directMappedFvPatch.H"
+#include "directMappedPatchBase.H"
 #include "volFields.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -61,7 +61,7 @@ directMappedFixedValueFvPatchField<Type>::directMappedFixedValueFvPatchField
     setAverage_(ptf.setAverage_),
     average_(ptf.average_)
 {
-    if (!isType<directMappedFvPatch>(this->patch()))
+    if (!isA<directMappedPatchBase>(this->patch().patch()))
     {
         FatalErrorIn
         (
@@ -74,7 +74,7 @@ directMappedFixedValueFvPatchField<Type>::directMappedFixedValueFvPatchField
             "    const fvPatchFieldMapper&\n"
             ")\n"
         )   << "\n    patch type '" << p.type()
-            << "' not type '" << typeName << "'"
+            << "' not type '" << directMappedPatchBase::typeName << "'"
             << "\n    for patch " << p.name()
             << " of field " << this->dimensionedInternalField().name()
             << " in file " << this->dimensionedInternalField().objectPath()
@@ -95,7 +95,7 @@ directMappedFixedValueFvPatchField<Type>::directMappedFixedValueFvPatchField
     setAverage_(readBool(dict.lookup("setAverage"))),
     average_(pTraits<Type>(dict.lookup("average")))
 {
-    if (!isType<directMappedFvPatch>(this->patch()))
+    if (!isA<directMappedPatchBase>(this->patch().patch()))
     {
         FatalErrorIn
         (
@@ -107,12 +107,19 @@ directMappedFixedValueFvPatchField<Type>::directMappedFixedValueFvPatchField
             "    const dictionary& dict\n"
             ")\n"
         )   << "\n    patch type '" << p.type()
-            << "' not type '" << typeName << "'"
+            << "' not type '" << directMappedPatchBase::typeName << "'"
             << "\n    for patch " << p.name()
             << " of field " << this->dimensionedInternalField().name()
             << " in file " << this->dimensionedInternalField().objectPath()
             << exit(FatalError);
     }
+
+    // Force calculation of schedule (uses parallel comms)
+    const directMappedPatchBase& mpp = refCast<const directMappedPatchBase>
+    (
+        this->patch().patch()
+    );
+    (void)mpp.map().schedule();
 }
 
 
@@ -143,70 +150,6 @@ directMappedFixedValueFvPatchField<Type>::directMappedFixedValueFvPatchField
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-template<class Type>
-void directMappedFixedValueFvPatchField<Type>::getNewValues
-(
-    const directMappedPolyPatch& mpp,
-    const Field<Type>& sendValues,
-    Field<Type>& newValues
-) const
-{
-    // Get the scheduling information
-    const List<labelPair>& schedule = mpp.schedule();
-    const labelListList& sendLabels = mpp.sendLabels();
-    const labelListList& receiveFaceLabels = mpp.receiveFaceLabels();
-
-    forAll(schedule, i)
-    {
-        const labelPair& twoProcs = schedule[i];
-        label sendProc = twoProcs[0];
-        label recvProc = twoProcs[1];
-
-        if (Pstream::myProcNo() == sendProc)
-        {
-            OPstream toProc(Pstream::scheduled, recvProc);
-            toProc<< UIndirectList<Type>(sendValues, sendLabels[recvProc])();
-        }
-        else
-        {
-            // I am receiver. Receive from sendProc.
-            IPstream fromProc(Pstream::scheduled, sendProc);
-
-            Field<Type> fromFld(fromProc);
-
-            // Destination faces
-            const labelList& faceLabels = receiveFaceLabels[sendProc];
-
-            forAll(fromFld, i)
-            {
-                label patchFaceI = faceLabels[i];
-
-                newValues[patchFaceI] = fromFld[i];
-            }
-        }
-    }
-
-    // Do data from myself
-    {
-        UIndirectList<Type> fromFld
-        (
-            sendValues,
-            sendLabels[Pstream::myProcNo()]
-        );
-
-        // Destination faces
-        const labelList& faceLabels = receiveFaceLabels[Pstream::myProcNo()];
-
-        forAll(fromFld, i)
-        {
-            label patchFaceI = faceLabels[i];
-
-            newValues[patchFaceI] = fromFld[i];
-        }
-    }
-}
-
-
 template<class Type>
 void directMappedFixedValueFvPatchField<Type>::updateCoeffs()
 {
@@ -215,65 +158,94 @@ void directMappedFixedValueFvPatchField<Type>::updateCoeffs()
         return;
     }
 
-    // Get the directMappedPolyPatch
-    const directMappedPolyPatch& mpp = refCast<const directMappedPolyPatch>
+    typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
+
+    // Get the scheduling information from the directMappedPatchBase
+    const directMappedPatchBase& mpp = refCast<const directMappedPatchBase>
     (
         directMappedFixedValueFvPatchField<Type>::patch().patch()
     );
+    const mapDistribute& distMap = mpp.map();
+    const fvMesh& nbrMesh = refCast<const fvMesh>(mpp.sampleMesh());
+    const word& fldName = this->dimensionedInternalField().name();
 
-    Field<Type> newValues(this->size());
+    // Result of obtaining remote values
+    Field<Type> newValues;
 
     switch (mpp.mode())
     {
-        case directMappedPolyPatch::NEARESTCELL:
+        case directMappedPatchBase::NEARESTCELL:
         {
-            getNewValues(mpp, this->internalField(), newValues);
+            if (mpp.sameRegion())
+            {
+                newValues = this->internalField();
+            }
+            else
+            {
+                newValues = nbrMesh.lookupObject<fieldType>
+                (
+                    fldName
+                ).internalField();
+            }
+            mapDistribute::distribute
+            (
+                Pstream::defaultCommsType,
+                distMap.schedule(),
+                distMap.constructSize(),
+                distMap.subMap(),
+                distMap.constructMap(),
+                newValues
+            );
 
             break;
         }
-        case directMappedPolyPatch::NEARESTPATCHFACE:
+        case directMappedPatchBase::NEARESTPATCHFACE:
         {
-            const label patchID =
-                 this->patch().patch().boundaryMesh().findPatchID
-                 (
-                    mpp.samplePatch()
-                 );
-            if (patchID < 0)
+            const label nbrPatchID = nbrMesh.boundaryMesh().findPatchID
+            (
+                mpp.samplePatch()
+            );
+            if (nbrPatchID < 0)
             {
                 FatalErrorIn
                 (
                     "void directMappedFixedValueFvPatchField<Type>::"
                     "updateCoeffs()"
                 )<< "Unable to find sample patch " << mpp.samplePatch()
+                 << " in region " << mpp.sampleRegion()
                  << " for patch " << this->patch().name() << nl
                  << abort(FatalError);
             }
-            typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
-            const word& fieldName = this->dimensionedInternalField().name();
-            const fieldType& sendField =
-                this->db().objectRegistry::lookupObject<fieldType>(fieldName);
 
-            getNewValues(mpp, sendField.boundaryField()[patchID], newValues);
+            const fieldType& nbrField = nbrMesh.lookupObject<fieldType>
+            (
+                fldName
+            );
+            newValues = nbrField.boundaryField()[nbrPatchID];
+            mapDistribute::distribute
+            (
+                Pstream::defaultCommsType,
+                distMap.schedule(),
+                distMap.constructSize(),
+                distMap.subMap(),
+                distMap.constructMap(),
+                newValues
+            );
 
             break;
         }
-        case directMappedPolyPatch::NEARESTFACE:
+        case directMappedPatchBase::NEARESTFACE:
         {
-            typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
-            const word& fieldName = this->dimensionedInternalField().name();
-            const fieldType& sendField =
-                this->db().objectRegistry::lookupObject<fieldType>(fieldName);
+            Field<Type> allValues(nbrMesh.nFaces(), pTraits<Type>::zero);
 
-            Field<Type> allValues
+            const fieldType& nbrField = nbrMesh.lookupObject<fieldType>
             (
-                this->patch().patch().boundaryMesh().mesh().nFaces(),
-                pTraits<Type>::zero
+                fldName
             );
-
-            forAll(sendField.boundaryField(), patchI)
+            forAll(nbrField.boundaryField(), patchI)
             {
                 const fvPatchField<Type>& pf =
-                    sendField.boundaryField()[patchI];
+                    nbrField.boundaryField()[patchI];
                 label faceStart = pf.patch().patch().start();
 
                 forAll(pf, faceI)
@@ -282,9 +254,17 @@ void directMappedFixedValueFvPatchField<Type>::updateCoeffs()
                 }
             }
 
-            getNewValues(mpp, allValues, newValues);
+            mapDistribute::distribute
+            (
+                Pstream::defaultCommsType,
+                distMap.schedule(),
+                distMap.constructSize(),
+                distMap.subMap(),
+                distMap.constructMap(),
+                allValues
+            );
 
-            newValues = this->patch().patchSlice(newValues);
+            newValues = this->patch().patchSlice(allValues);
 
             break;
         }
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.H b/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.H
index 8c8da590a8..2382b32db8 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/directMappedFixedValue/directMappedFixedValueFvPatchField.H
@@ -62,18 +62,6 @@ class directMappedFixedValueFvPatchField
         //  setAverage_ is set true
         Type average_;
 
-
-   // Private member functions
-
-        // Helper function to return the new field values
-        void getNewValues
-        (
-            const directMappedPolyPatch& mpp,
-            const Field<Type>& sendValues,
-            Field<Type>& newValues
-        ) const;
-
-
 public:
 
     //- Runtime type information
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.C b/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.C
index 92bf63e8c6..5ac329fe31 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.C
+++ b/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.C
@@ -26,7 +26,7 @@ License
 
 #include "directMappedVelocityFluxFixedValueFvPatchField.H"
 #include "fvPatchFieldMapper.H"
-#include "directMappedFvPatch.H"
+#include "directMappedPatchBase.H"
 #include "volFields.H"
 #include "surfaceFields.H"
 #include "addToRunTimeSelectionTable.H"
@@ -62,12 +62,12 @@ directMappedVelocityFluxFixedValueFvPatchField
     fixedValueFvPatchVectorField(ptf, p, iF, mapper),
     phiName_(ptf.phiName_)
 {
-    if (!isType<directMappedFvPatch>(patch()))
+    if (!isType<directMappedPatchBase>(this->patch().patch()))
     {
         FatalErrorIn
         (
             "directMappedVelocityFluxFixedValueFvPatchField::"
-            "directMappedFixedValueFvPatchField\n"
+            "directMappedVelocityFluxFixedValueFvPatchField\n"
             "(\n"
             "    const directMappedVelocityFluxFixedValueFvPatchField&,\n"
             "    const fvPatch&,\n"
@@ -75,7 +75,7 @@ directMappedVelocityFluxFixedValueFvPatchField
             "    const fvPatchFieldMapper&\n"
             ")\n"
         )   << "\n    patch type '" << p.type()
-            << "' not type '" << typeName << "'"
+            << "' not type '" << directMappedPatchBase::typeName << "'"
             << "\n    for patch " << p.name()
             << " of field " << dimensionedInternalField().name()
             << " in file " << dimensionedInternalField().objectPath()
@@ -95,24 +95,31 @@ directMappedVelocityFluxFixedValueFvPatchField
     fixedValueFvPatchVectorField(p, iF, dict),
     phiName_(dict.lookup("phi"))
 {
-    if (!isType<directMappedFvPatch>(patch()))
+    if (!isType<directMappedPatchBase>(this->patch().patch()))
     {
         FatalErrorIn
         (
             "directMappedVelocityFluxFixedValueFvPatchField::"
-            "directMappedFixedValueFvPatchField\n"
+            "directMappedVelocityFluxFixedValueFvPatchField\n"
             "(\n"
             "    const fvPatch& p,\n"
             "    const DimensionedField<vector, volMesh>& iF,\n"
             "    const dictionary& dict\n"
             ")\n"
         )   << "\n    patch type '" << p.type()
-            << "' not type '" << typeName << "'"
+            << "' not type '" << directMappedPatchBase::typeName << "'"
             << "\n    for patch " << p.name()
             << " of field " << dimensionedInternalField().name()
             << " in file " << dimensionedInternalField().objectPath()
             << exit(FatalError);
     }
+
+    // Force calculation of schedule (uses parallel comms)
+    const directMappedPolyPatch& mpp = refCast<const directMappedPolyPatch>
+    (
+        patch().patch()
+    );
+    (void)mpp.map().schedule();
 }
 
 
@@ -139,85 +146,6 @@ directMappedVelocityFluxFixedValueFvPatchField
 {}
 
 
-void directMappedVelocityFluxFixedValueFvPatchField::getNewValues
-(
-    const directMappedPolyPatch& mpp,
-    const vectorField& sendUValues,
-    const scalarField& sendPhiValues,
-    vectorField& newUValues,
-    scalarField& newPhiValues
-) const
-{
-    // Get the scheduling information
-    const List<labelPair>& schedule = mpp.schedule();
-    const labelListList& sendLabels = mpp.sendLabels();
-    const labelListList& receiveFaceLabels = mpp.receiveFaceLabels();
-
-    forAll(schedule, i)
-    {
-        const labelPair& twoProcs = schedule[i];
-        label sendProc = twoProcs[0];
-        label recvProc = twoProcs[1];
-
-        if (Pstream::myProcNo() == sendProc)
-        {
-            OPstream toProc(Pstream::scheduled, recvProc);
-            toProc<< UIndirectList<vector>(sendUValues, sendLabels[recvProc])();
-            toProc<< UIndirectList<scalar>
-                (
-                    sendPhiValues,
-                    sendLabels[recvProc]
-                )();
-        }
-        else
-        {
-            // I am receiver. Receive from sendProc.
-            IPstream fromProc(Pstream::scheduled, sendProc);
-
-            vectorField fromUFld(fromProc);
-            scalarField fromPhiFld(fromProc);
-
-            // Destination faces
-            const labelList& faceLabels = receiveFaceLabels[sendProc];
-
-            forAll(fromUFld, i)
-            {
-                label patchFaceI = faceLabels[i];
-
-                newUValues[patchFaceI] = fromUFld[i];
-                newPhiValues[patchFaceI] = fromPhiFld[i];
-            }
-        }
-    }
-
-    // Do data from myself
-    {
-        UIndirectList<vector> fromUFld
-            (
-                sendUValues,
-                sendLabels[Pstream::myProcNo()]
-            );
-
-        UIndirectList<scalar> fromPhiFld
-            (
-                sendPhiValues,
-                sendLabels[Pstream::myProcNo()]
-            );
-
-        // Destination faces
-        const labelList& faceLabels = receiveFaceLabels[Pstream::myProcNo()];
-
-        forAll(fromUFld, i)
-        {
-            label patchFaceI = faceLabels[i];
-
-            newUValues[patchFaceI] = fromUFld[i];
-            newPhiValues[patchFaceI] = fromPhiFld[i];
-        }
-    }
-}
-
-
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 void directMappedVelocityFluxFixedValueFvPatchField::updateCoeffs()
@@ -227,37 +155,33 @@ void directMappedVelocityFluxFixedValueFvPatchField::updateCoeffs()
         return;
     }
 
-    // Get the directMappedPolyPatch
-    const directMappedPolyPatch& mpp = refCast<const directMappedPolyPatch>
+    // Get the directMappedPatchBase
+    const directMappedPatchBase& mpp = refCast<const directMappedPatchBase>
     (
         directMappedVelocityFluxFixedValueFvPatchField::patch().patch()
     );
-
-    vectorField newUValues(size());
-    scalarField newPhiValues(size());
-
+    const mapDistribute& distMap = mpp.map();
+    const fvMesh& nbrMesh = refCast<const fvMesh>(mpp.sampleMesh());
     const word& fieldName = dimensionedInternalField().name();
-    const volVectorField& UField = db().lookupObject<volVectorField>(fieldName);
+    const volVectorField& UField = nbrMesh.lookupObject<volVectorField>
+    (
+        fieldName
+    );
 
     surfaceScalarField& phiField = const_cast<surfaceScalarField&>
     (
-        db().lookupObject<surfaceScalarField>(phiName_)
+        nbrMesh.lookupObject<surfaceScalarField>(phiName_)
     );
 
+    vectorField newUValues;
+    scalarField newPhiValues;
+
     switch (mpp.mode())
     {
         case directMappedPolyPatch::NEARESTFACE:
         {
-            vectorField allUValues
-            (
-                patch().patch().boundaryMesh().mesh().nFaces(),
-                vector::zero
-            );
-            scalarField allPhiValues
-            (
-                patch().patch().boundaryMesh().mesh().nFaces(),
-                0.0
-            );
+            vectorField allUValues(nbrMesh.nFaces(), vector::zero);
+            scalarField allPhiValues(nbrMesh.nFaces(), 0.0);
 
             forAll(UField.boundaryField(), patchI)
             {
@@ -273,34 +197,58 @@ void directMappedVelocityFluxFixedValueFvPatchField::updateCoeffs()
                 }
             }
 
-            getNewValues
+            mapDistribute::distribute
             (
-                mpp,
-                allUValues,
-                allPhiValues,
-                newUValues,
+                Pstream::defaultCommsType,
+                distMap.schedule(),
+                distMap.constructSize(),
+                distMap.subMap(),
+                distMap.constructMap(),
+                allUValues
+            );
+            newUValues = patch().patchSlice(newUValues);
+            
+            mapDistribute::distribute
+            (
+                Pstream::defaultCommsType,
+                distMap.schedule(),
+                distMap.constructSize(),
+                distMap.subMap(),
+                distMap.constructMap(),
                 newPhiValues
             );
-
-            newUValues = patch().patchSlice(newUValues);
             newPhiValues = patch().patchSlice(newPhiValues);
 
             break;
         }
         case directMappedPolyPatch::NEARESTPATCHFACE:
         {
-            const label patchID =
-                patch().patch().boundaryMesh().findPatchID
-                (
-                    mpp.samplePatch()
-                );
-
-            getNewValues
+            const label nbrPatchID = nbrMesh.boundaryMesh().findPatchID
             (
-                mpp,
-                UField.boundaryField()[patchID],
-                phiField.boundaryField()[patchID],
-                newUValues,
+                mpp.samplePatch()
+            );
+
+            newUValues = UField.boundaryField()[nbrPatchID];
+
+            mapDistribute::distribute
+            (
+                Pstream::defaultCommsType,
+                distMap.schedule(),
+                distMap.constructSize(),
+                distMap.subMap(),
+                distMap.constructMap(),
+                newUValues
+            );
+
+            newPhiValues = phiField.boundaryField()[nbrPatchID];
+
+            mapDistribute::distribute
+            (
+                Pstream::defaultCommsType,
+                distMap.schedule(),
+                distMap.constructSize(),
+                distMap.subMap(),
+                distMap.constructMap(),
                 newPhiValues
             );
 
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.H b/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.H
index b92372eb3a..6ec34d62e1 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/directMappedVelocityFluxFixedValue/directMappedVelocityFluxFixedValueFvPatchField.H
@@ -57,20 +57,6 @@ class directMappedVelocityFluxFixedValueFvPatchField
         //- Name of flux field
         word phiName_;
 
-
-   // Private member functions
-
-        // Helper function to return the new field values
-        void getNewValues
-        (
-            const directMappedPolyPatch& mpp,
-            const vectorField& sendUValues,
-            const scalarField& sendPhiValues,
-            vectorField& newUValues,
-            scalarField& newPhiValues
-        ) const;
-
-
 public:
 
     //- Runtime type information
diff --git a/src/finiteVolume/fvMesh/fvPatches/derived/directMapped/directMappedWallFvPatch.C b/src/finiteVolume/fvMesh/fvPatches/derived/directMapped/directMappedWallFvPatch.C
new file mode 100644
index 0000000000..413d5f86c2
--- /dev/null
+++ b/src/finiteVolume/fvMesh/fvPatches/derived/directMapped/directMappedWallFvPatch.C
@@ -0,0 +1,38 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "directMappedWallFvPatch.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(directMappedWallFvPatch, 0);
+    addToRunTimeSelectionTable(fvPatch, directMappedWallFvPatch, polyPatch);
+}
+
+// ************************************************************************* //
diff --git a/src/finiteVolume/fvMesh/fvPatches/derived/directMapped/directMappedWallFvPatch.H b/src/finiteVolume/fvMesh/fvPatches/derived/directMapped/directMappedWallFvPatch.H
new file mode 100644
index 0000000000..4be7eed592
--- /dev/null
+++ b/src/finiteVolume/fvMesh/fvPatches/derived/directMapped/directMappedWallFvPatch.H
@@ -0,0 +1,84 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::directMappedWallFvPatch
+
+Description
+    Foam::directMappedWallFvPatch
+
+SourceFiles
+    directMappedWallFvPatch.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef directMappedWallFvPatch_H
+#define directMappedWallFvPatch_H
+
+#include "fvPatch.H"
+#include "directMappedWallPolyPatch.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                           Class directMappedWallFvPatch Declaration
+\*---------------------------------------------------------------------------*/
+
+class directMappedWallFvPatch
+:
+    public fvPatch
+{
+
+public:
+
+    //- Runtime type information
+    TypeName(directMappedWallPolyPatch::typeName_());
+
+
+    // Constructors
+
+        //- Construct from components
+        directMappedWallFvPatch
+        (
+            const polyPatch& patch,
+            const fvBoundaryMesh& bm
+        )
+        :
+            fvPatch(patch, bm)
+        {}
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/meshTools/Make/files b/src/meshTools/Make/files
index 9f849c5894..d5133cb33d 100644
--- a/src/meshTools/Make/files
+++ b/src/meshTools/Make/files
@@ -141,7 +141,10 @@ triSurface/triSurfaceTools/geompack/geompack.C
 
 twoDPointCorrector/twoDPointCorrector.C
 
+directMapped/directMappedPolyPatch/directMappedPatchBase.C
 directMapped/directMappedPolyPatch/directMappedPolyPatch.C
+directMapped/directMappedPolyPatch/directMappedWallPolyPatch.C
 directMapped/directMappedPointPatch/directMappedPointPatch.C
+directMapped/directMappedPointPatch/directMappedWallPointPatch.C
 
 LIB = $(FOAM_LIBBIN)/libmeshTools
diff --git a/src/meshTools/directMapped/directMappedPointPatch/directMappedWallPointPatch.C b/src/meshTools/directMapped/directMappedPointPatch/directMappedWallPointPatch.C
new file mode 100644
index 0000000000..4633d73ecf
--- /dev/null
+++ b/src/meshTools/directMapped/directMappedPointPatch/directMappedWallPointPatch.C
@@ -0,0 +1,52 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "directMappedWallPointPatch.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+defineTypeNameAndDebug(directMappedWallPointPatch, 0);
+
+// Add the patch constructor functions to the hash tables
+addToRunTimeSelectionTable
+(
+    facePointPatch,
+    directMappedWallPointPatch,
+    polyPatch
+);
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// ************************************************************************* //
diff --git a/src/meshTools/directMapped/directMappedPointPatch/directMappedWallPointPatch.H b/src/meshTools/directMapped/directMappedPointPatch/directMappedWallPointPatch.H
new file mode 100644
index 0000000000..28bb877105
--- /dev/null
+++ b/src/meshTools/directMapped/directMappedPointPatch/directMappedWallPointPatch.H
@@ -0,0 +1,84 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::directMappedWallPointPatch
+
+Description
+    DirectMapped patch.
+
+SourceFiles
+    directMappedWallPointPatch.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef directMappedWallPointPatch_H
+#define directMappedWallPointPatch_H
+
+#include "facePointPatch.H"
+#include "directMappedWallPolyPatch.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                       Class directMappedWallPointPatch Declaration
+\*---------------------------------------------------------------------------*/
+
+class directMappedWallPointPatch
+:
+    public facePointPatch
+{
+
+public:
+
+    //- Runtime type information
+    TypeName(directMappedWallPolyPatch::typeName_());
+
+
+    // Constructors
+
+        //- Construct from polyPatch
+        directMappedWallPointPatch
+        (
+            const polyPatch& patch,
+            const pointBoundaryMesh& bm
+        )
+        :
+            facePointPatch(patch, bm)
+        {}
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/meshTools/directMapped/directMappedPolyPatch/directMappedPatchBase.C b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPatchBase.C
new file mode 100644
index 0000000000..4852a54c2e
--- /dev/null
+++ b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPatchBase.C
@@ -0,0 +1,656 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "directMappedPatchBase.H"
+#include "addToRunTimeSelectionTable.H"
+#include "ListListOps.H"
+#include "meshSearch.H"
+#include "meshTools.H"
+#include "OFstream.H"
+#include "Random.H"
+#include "treeDataFace.H"
+#include "indexedOctree.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(directMappedPatchBase, 0);
+
+    template<>
+    const char* NamedEnum<directMappedPatchBase::sampleMode, 3>::names[] =
+    {
+        "nearestCell",
+        "nearestPatchFace",
+        "nearestFace"
+    };
+
+    const NamedEnum<directMappedPatchBase::sampleMode, 3>
+        directMappedPatchBase::sampleModeNames_;
+}
+
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+void Foam::directMappedPatchBase::collectSamples
+(
+    pointField& samples,
+    labelList& patchFaceProcs,
+    labelList& patchFaces,
+    pointField& patchFc
+) const
+{
+
+    // Collect all sample points and the faces they come from.
+    List<pointField> globalFc(Pstream::nProcs());
+    List<pointField> globalSamples(Pstream::nProcs());
+    labelListList globalFaces(Pstream::nProcs());
+
+    globalFc[Pstream::myProcNo()] = patch_.faceCentres();
+    globalSamples[Pstream::myProcNo()] = globalFc[Pstream::myProcNo()]+offset_;
+    globalFaces[Pstream::myProcNo()] = identity(patch_.size());
+
+    // Distribute to all processors
+    Pstream::gatherList(globalSamples);
+    Pstream::scatterList(globalSamples);
+    Pstream::gatherList(globalFaces);
+    Pstream::scatterList(globalFaces);
+    Pstream::gatherList(globalFc);
+    Pstream::scatterList(globalFc);
+
+    // Rework into straight list
+    samples = ListListOps::combine<pointField>
+    (
+        globalSamples,
+        accessOp<pointField>()
+    );
+    patchFaces = ListListOps::combine<labelList>
+    (
+        globalFaces,
+        accessOp<labelList>()
+    );
+    patchFc = ListListOps::combine<pointField>
+    (
+        globalFc,
+        accessOp<pointField>()
+    );
+
+    patchFaceProcs.setSize(patchFaces.size());
+    labelList nPerProc
+    (
+        ListListOps::subSizes
+        (
+            globalFaces,
+            accessOp<labelList>()
+        )
+    );
+    label sampleI = 0;
+    forAll(nPerProc, procI)
+    {
+        for (label i = 0; i < nPerProc[procI]; i++)
+        {
+            patchFaceProcs[sampleI++] = procI;
+        }
+    }
+}
+
+
+// Find the processor/cell containing the samples. Does not account
+// for samples being found in two processors.
+void Foam::directMappedPatchBase::findSamples
+(
+    const pointField& samples,
+    labelList& sampleProcs,
+    labelList& sampleIndices,
+    pointField& sampleLocations
+) const
+{
+    // Lookup the correct region
+    const polyMesh& mesh = sampleMesh();
+
+    // All the info for nearest. Construct to miss
+    List<nearInfo> nearest(samples.size());
+
+    switch (mode_)
+    {
+        case NEARESTCELL:
+        {
+            if (samplePatch_.size() && samplePatch_ != "none")
+            {
+                FatalErrorIn
+                (
+                    "directMappedPatchBase::findSamples(const pointField&,"
+                    " labelList&, labelList&, pointField&) const"
+                )   << "No need to supply a patch name when in "
+                    << sampleModeNames_[mode_] << " mode." << exit(FatalError);
+            }
+
+            // Octree based search engine
+            meshSearch meshSearchEngine(mesh, false);
+
+            forAll(samples, sampleI)
+            {
+                const point& sample = samples[sampleI];
+
+                label cellI = meshSearchEngine.findCell(sample);
+
+                if (cellI == -1)
+                {
+                    nearest[sampleI].second().first() = Foam::sqr(GREAT);
+                    nearest[sampleI].second().second() = Pstream::myProcNo();
+                }
+                else
+                {
+                    const point& cc = mesh.cellCentres()[cellI];
+
+                    nearest[sampleI].first() = pointIndexHit
+                    (
+                        true,
+                        cc,
+                        cellI
+                    );
+                    nearest[sampleI].second().first() = magSqr(cc-sample);
+                    nearest[sampleI].second().second() = Pstream::myProcNo();
+                }
+            }
+            break;
+        }
+
+        case NEARESTPATCHFACE:
+        {
+            Random rndGen(123456);
+
+            const polyPatch& pp = samplePolyPatch();
+
+            if (pp.empty())
+            {
+                forAll(samples, sampleI)
+                {
+                    nearest[sampleI].second().first() = Foam::sqr(GREAT);
+                    nearest[sampleI].second().second() = Pstream::myProcNo();
+                }
+            }
+            else
+            {
+                // patch faces
+                const labelList patchFaces(identity(pp.size()) + pp.start());
+
+                treeBoundBox patchBb
+                (
+                    treeBoundBox(pp.points(), pp.meshPoints()).extend
+                    (
+                        rndGen,
+                        1E-4
+                    )
+                );
+                patchBb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
+                patchBb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
+
+                indexedOctree<treeDataFace> boundaryTree
+                (
+                    treeDataFace    // all information needed to search faces
+                    (
+                        false,      // do not cache bb
+                        mesh,
+                        patchFaces  // boundary faces only
+                    ),
+                    patchBb,        // overall search domain
+                    8,              // maxLevel
+                    10,             // leafsize
+                    3.0             // duplicity
+                );
+
+                forAll(samples, sampleI)
+                {
+                    const point& sample = samples[sampleI];
+
+                    pointIndexHit& nearInfo = nearest[sampleI].first();
+                    nearInfo = boundaryTree.findNearest
+                    (
+                        sample,
+                        magSqr(patchBb.span())
+                    );
+
+                    if (!nearInfo.hit())
+                    {
+                        nearest[sampleI].second().first() = Foam::sqr(GREAT);
+                        nearest[sampleI].second().second() =
+                            Pstream::myProcNo();
+                    }
+                    else
+                    {
+                        point fc(pp[nearInfo.index()].centre(pp.points()));
+                        nearInfo.setPoint(fc);
+                        nearest[sampleI].second().first() = magSqr(fc-sample);
+                        nearest[sampleI].second().second() =
+                            Pstream::myProcNo();
+                    }
+                }
+            }
+            break;
+        }
+
+        case NEARESTFACE:
+        {
+            if (samplePatch_.size() && samplePatch_ != "none")
+            {
+                FatalErrorIn
+                (
+                    "directMappedPatchBase::findSamples(const pointField&,"
+                    " labelList&, labelList&, pointField&) const"
+                )   << "No need to supply a patch name when in "
+                    << sampleModeNames_[mode_] << " mode." << exit(FatalError);
+            }
+
+            // Octree based search engine
+            meshSearch meshSearchEngine(mesh, false);
+
+            forAll(samples, sampleI)
+            {
+                const point& sample = samples[sampleI];
+
+                label faceI = meshSearchEngine.findNearestFace(sample);
+
+                if (faceI == -1)
+                {
+                    nearest[sampleI].second().first() = Foam::sqr(GREAT);
+                    nearest[sampleI].second().second() = Pstream::myProcNo();
+                }
+                else
+                {
+                    const point& fc = mesh.faceCentres()[faceI];
+
+                    nearest[sampleI].first() = pointIndexHit
+                    (
+                        true,
+                        fc,
+                        faceI
+                    );
+                    nearest[sampleI].second().first() = magSqr(fc-sample);
+                    nearest[sampleI].second().second() = Pstream::myProcNo();
+                }
+            }
+            break;
+        }
+
+        default:
+        {
+            FatalErrorIn("directMappedPatchBase::findSamples(..)")
+                << "problem." << abort(FatalError);
+        }
+    }
+
+
+    // Find nearest.
+    Pstream::listCombineGather(nearest, nearestEqOp());
+    Pstream::listCombineScatter(nearest);
+
+    if (debug)
+    {
+        Info<< "directMappedPatchBase::findSamples on mesh " << sampleRegion_
+            << " : " << endl;
+        forAll(nearest, sampleI)
+        {
+            label procI = nearest[sampleI].second().second();
+            label localI = nearest[sampleI].first().index();
+
+            Info<< "    " << sampleI << " coord:"<< samples[sampleI]
+                << " found on processor:" << procI
+                << " in local cell/face:" << localI
+                << " with cc:" << nearest[sampleI].first().rawPoint() << endl;
+        }
+    }
+
+    // Check for samples not being found
+    forAll(nearest, sampleI)
+    {
+        if (!nearest[sampleI].first().hit())
+        {
+            FatalErrorIn
+            (
+                "directMappedPatchBase::findSamples"
+                "(const pointField&, labelList&"
+                ", labelList&, pointField&)"
+            )   << "Did not find sample " << samples[sampleI]
+                << " on any processor of region" << sampleRegion_
+                << exit(FatalError);
+        }
+    }
+
+
+    // Convert back into proc+local index
+    sampleProcs.setSize(samples.size());
+    sampleIndices.setSize(samples.size());
+    sampleLocations.setSize(samples.size());
+
+    forAll(nearest, sampleI)
+    {
+        sampleProcs[sampleI] = nearest[sampleI].second().second();
+        sampleIndices[sampleI] = nearest[sampleI].first().index();
+        sampleLocations[sampleI] = nearest[sampleI].first().hitPoint();
+    }
+}
+
+
+void Foam::directMappedPatchBase::calcMapping() const
+{
+    if (mapPtr_.valid())
+    {
+        FatalErrorIn("directMappedPatchBase::calcMapping() const")
+            << "Mapping already calculated" << exit(FatalError);
+    }
+
+    if
+    (
+        offset_ == vector::zero
+     && sampleRegion_ == patch_.boundaryMesh().mesh().name()
+    )
+    {
+        FatalErrorIn("directMappedPatchBase::calcMapping() const")
+            << "Invalid offset " << offset_ << endl
+            << "Offset is the vector added to the patch face centres to"
+            << " find the cell supplying the data."
+            << exit(FatalError);
+    }
+
+
+    // Get global list of all samples and the processor and face they come from.
+    pointField samples;
+    labelList patchFaceProcs;
+    labelList patchFaces;
+    pointField patchFc;
+    collectSamples(samples, patchFaceProcs, patchFaces, patchFc);
+
+    // Find processor and cell/face samples are in and actual location.
+    labelList sampleProcs;
+    labelList sampleIndices;
+    pointField sampleLocations;
+    findSamples(samples, sampleProcs, sampleIndices, sampleLocations);
+
+
+    // Now we have all the data we need:
+    // - where sample originates from (so destination when mapping):
+    //   patchFaces, patchFaceProcs.
+    // - cell/face sample is in (so source when mapping)
+    //   sampleIndices, sampleProcs.
+
+    //forAll(samples, i)
+    //{
+    //    Info<< i << " need data in region "
+    //        << patch_.boundaryMesh().mesh().name()
+    //        << " for proc:" << patchFaceProcs[i]
+    //        << " face:" << patchFaces[i]
+    //        << " at:" << patchFc[i] << endl
+    //        << "Found data in region " << sampleRegion_
+    //        << " at proc:" << sampleProcs[i]
+    //        << " face:" << sampleIndices[i]
+    //        << " at:" << sampleLocations[i]
+    //        << nl << endl;
+    //}
+
+
+
+    if (debug && Pstream::master())
+    {
+        OFstream str
+        (
+            patch_.boundaryMesh().mesh().time().path()
+          / patch_.name()
+          + "_directMapped.obj"
+        );
+        Pout<< "Dumping mapping as lines from patch faceCentres to"
+            << " sampled cellCentres to file " << str.name() << endl;
+
+        label vertI = 0;
+
+        forAll(patchFc, i)
+        {
+            meshTools::writeOBJ(str, patchFc[i]);
+            vertI++;
+            meshTools::writeOBJ(str, sampleLocations[i]);
+            vertI++;
+            str << "l " << vertI-1 << ' ' << vertI << nl;
+        }
+    }
+
+
+    // Check that actual offset vector (sampleLocations - patchFc) is more or
+    // less constant.
+    if (Pstream::master())
+    {
+        const scalarField magOffset(mag(sampleLocations - patchFc));
+        const scalar avgOffset(average(magOffset));
+
+        forAll(magOffset, sampleI)
+        {
+            if (mag(magOffset[sampleI]-avgOffset) > 0.001*avgOffset)
+            {
+                WarningIn("directMappedPatchBase::calcMapping() const")
+                    << "The actual cell centres picked up using offset "
+                    << offset_ << " are not" << endl
+                    << "    on a single plane."
+                    << " This might give numerical problems." << endl
+                    << "    At patchface " << patchFc[sampleI]
+                    << " the sampled cell " << sampleLocations[sampleI] << endl
+                    << "    is not on a plane " << avgOffset
+                    << " offset from the patch." << endl
+                    << "    You might want to shift your plane offset."
+                    << " Set the debug flag to get a dump of sampled cells."
+                    << endl;
+                break;
+            }
+        }
+    }
+
+
+    // Determine schedule.
+    mapPtr_.reset(new mapDistribute(sampleProcs, patchFaceProcs));
+
+    // Rework the schedule from indices into samples to cell data to send,
+    // face data to receive.
+
+    labelListList& subMap = mapPtr_().subMap();
+    labelListList& constructMap = mapPtr_().constructMap();
+
+    forAll(subMap, procI)
+    {
+        subMap[procI] = UIndirectList<label>
+        (
+            sampleIndices,
+            subMap[procI]
+        );
+        constructMap[procI] = UIndirectList<label>
+        (
+            patchFaces,
+            constructMap[procI]
+        );
+
+        if (debug)
+        {
+            Pout<< "To proc:" << procI << " sending values of cells/faces:"
+                << subMap[procI] << endl;
+            Pout<< "From proc:" << procI << " receiving values of patch faces:"
+                << constructMap[procI] << endl;
+        }
+    }
+
+    // Redo constructSize
+    mapPtr_().constructSize() = patch_.size();
+
+    if (debug)
+    {
+        // Check that all elements get a value.
+        PackedBoolList used(patch_.size());
+        forAll(constructMap, procI)
+        {
+            const labelList& map = constructMap[procI];
+
+            forAll(map, i)
+            {
+                label faceI = map[i];
+
+                if (used[faceI] == 0)
+                {
+                    used[faceI] = 1;
+                }
+                else
+                {
+                    FatalErrorIn("directMappedPatchBase::calcMapping() const")
+                        << "On patch " << patch_.name()
+                        << " patchface " << faceI
+                        << " is assigned to more than once."
+                        << abort(FatalError);
+                }
+            }
+        }
+        forAll(used, faceI)
+        {
+            if (used[faceI] == 0)
+            {
+                FatalErrorIn("directMappedPatchBase::calcMapping() const")
+                    << "On patch " << patch_.name()
+                    << " patchface " << faceI
+                    << " is never assigned to."
+                    << abort(FatalError);
+            }
+        }
+    }
+}
+
+
+// * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * * * * * //
+
+Foam::directMappedPatchBase::directMappedPatchBase
+(
+     const polyPatch& pp
+)
+:
+    patch_(pp),
+    sampleRegion_(patch_.boundaryMesh().mesh().name()),
+    mode_(NEARESTPATCHFACE),
+    samplePatch_("none"),
+    offset_(vector::zero),
+    sameRegion_(sampleRegion_ == patch_.boundaryMesh().mesh().name()),
+    mapPtr_(NULL)
+{}
+
+
+Foam::directMappedPatchBase::directMappedPatchBase
+(
+    const polyPatch& pp,
+    const dictionary& dict
+)
+:
+    patch_(pp),
+    sampleRegion_
+    (
+        dict.lookupOrDefault
+        (
+            "sampleRegion",
+            patch_.boundaryMesh().mesh().name()
+        )
+    ),
+    mode_(sampleModeNames_.read(dict.lookup("sampleMode"))),
+    samplePatch_(dict.lookup("samplePatch")),
+    offset_(dict.lookup("offset")),
+    sameRegion_(sampleRegion_ == patch_.boundaryMesh().mesh().name()),
+    mapPtr_(NULL)
+{}
+
+
+Foam::directMappedPatchBase::directMappedPatchBase
+(
+    const polyPatch& pp,
+    const directMappedPatchBase& dmp
+)
+:
+    patch_(pp),
+    sampleRegion_(dmp.sampleRegion_),
+    mode_(dmp.mode_),
+    samplePatch_(dmp.samplePatch_),
+    offset_(dmp.offset_),
+    sameRegion_(dmp.sameRegion_),
+    mapPtr_(NULL)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::directMappedPatchBase::~directMappedPatchBase()
+{
+    clearOut();
+}
+
+
+void Foam::directMappedPatchBase::clearOut()
+{
+    mapPtr_.clear();
+}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+const Foam::polyMesh& Foam::directMappedPatchBase::sampleMesh() const
+{
+    return patch_.boundaryMesh().mesh().time().lookupObject<polyMesh>
+    (
+        sampleRegion_
+    );
+}
+
+
+const Foam::polyPatch& Foam::directMappedPatchBase::samplePolyPatch() const
+{
+    const polyMesh& nbrMesh = sampleMesh();
+
+    label patchI = nbrMesh.boundaryMesh().findPatchID(samplePatch_);
+
+    if (patchI == -1)
+    {
+        FatalErrorIn("directMappedPatchBase::samplePolyPatch() ")
+            << "Cannot find patch " << samplePatch_
+            << " in region " << sampleRegion_ << endl
+            << "Valid patches are " << nbrMesh.boundaryMesh().names()
+            << exit(FatalError);
+    }
+
+    return nbrMesh.boundaryMesh()[patchI];
+}
+
+
+void Foam::directMappedPatchBase::write(Ostream& os) const
+{
+    os.writeKeyword("sampleMode") << sampleModeNames_[mode_]
+        << token::END_STATEMENT << nl;
+    os.writeKeyword("sampleRegion") << sampleRegion_
+        << token::END_STATEMENT << nl;
+    os.writeKeyword("samplePatch") << samplePatch_
+        << token::END_STATEMENT << nl;
+    os.writeKeyword("offset") << offset_ << token::END_STATEMENT << nl;
+}
+
+
+// ************************************************************************* //
diff --git a/src/meshTools/directMapped/directMappedPolyPatch/directMappedPatchBase.H b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPatchBase.H
new file mode 100644
index 0000000000..1a476f66a9
--- /dev/null
+++ b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPatchBase.H
@@ -0,0 +1,248 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::directMappedPatchBase
+
+Description
+    Determines a mapping between patch face centres and mesh cell or face
+    centres and processors they're on.
+
+Note
+    Storage is not optimal. It temporary collects all (patch)face centres
+    on all processors to keep the addressing calculation simple.
+
+SourceFiles
+    directMappedPatchBase.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef directMappedPatchBase_H
+#define directMappedPatchBase_H
+
+#include "pointField.H"
+#include "Tuple2.H"
+#include "pointIndexHit.H"
+#include "mapDistribute.H"
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class polyPatch;
+class polyMesh;
+
+/*---------------------------------------------------------------------------*\
+                      Class directMappedPatchBase Declaration
+\*---------------------------------------------------------------------------*/
+
+class directMappedPatchBase
+{
+
+public:
+
+        //- Mesh items to sample
+        enum sampleMode
+        {
+            NEARESTCELL,
+            NEARESTPATCHFACE,
+            NEARESTFACE
+        };
+
+private:
+
+    // Private data
+
+        static const NamedEnum<sampleMode, 3> sampleModeNames_;
+
+        //- Patch to sample
+        const polyPatch& patch_;
+
+        //- Region to sample
+        const word sampleRegion_;
+
+        //- What to sample
+        const sampleMode mode_;
+
+        //- Patch (only if NEARESTBOUNDARY)
+        const word samplePatch_;
+
+        //- Offset vector
+        const vector offset_;
+
+        //- Same region
+        const bool sameRegion_;
+
+
+        // Derived information
+
+            //- Communication schedule:
+            //  - Cells/faces to sample per processor
+            //  - Patch faces to receive per processor
+            //  - schedule
+            mutable autoPtr<mapDistribute> mapPtr_;
+
+    // Private Member Functions
+
+        //- Collect single list of samples and originating processor+face.
+        void collectSamples
+        (
+            pointField&,
+            labelList& patchFaceProcs,
+            labelList& patchFaces,
+            pointField& patchFc
+        ) const;
+
+        //- Find cells/faces containing samples
+        void findSamples
+        (
+            const pointField&,
+            labelList& sampleProcs,     // processor containing sample
+            labelList& sampleIndices,   // local index of cell/face
+            pointField& sampleLocations // actual representative location
+        ) const;
+
+        //- Calculate matching
+        void calcMapping() const;
+
+
+    // Private class
+
+        //- Private class for finding nearest
+        //  - point+local index
+        //  - sqr(distance)
+        //  - processor
+        typedef Tuple2<pointIndexHit, Tuple2<scalar, label> > nearInfo;
+
+        class nearestEqOp
+        {
+
+        public:
+
+            void operator()(nearInfo& x, const nearInfo& y) const
+            {
+                if (y.first().hit())
+                {
+                    if (!x.first().hit())
+                    {
+                        x = y;
+                    }
+                    else if (y.second().first() < x.second().first())
+                    {
+                        x = y;
+                    }
+                }
+            }
+        };
+
+
+public:
+
+    //- Runtime type information
+    ClassName("directMappedPatchBase");
+
+
+    // Constructors
+
+        //- Construct from components
+        directMappedPatchBase(const polyPatch&);
+
+        //- Construct from dictionary
+        directMappedPatchBase(const polyPatch&, const dictionary&);
+
+        //- Construct as copy, resetting patch
+        directMappedPatchBase(const polyPatch&, const directMappedPatchBase&);
+
+
+    // Destructor
+
+        ~directMappedPatchBase();
+
+        void clearOut();
+
+
+    // Member functions
+
+        //- What to sample
+        const sampleMode& mode() const
+        {
+            return mode_;
+        }
+
+        //- Region to sample
+        const word& sampleRegion() const
+        {
+            return sampleRegion_;
+        }
+
+        //- Patch (only if NEARESTBOUNDARY)
+        const word& samplePatch() const
+        {
+            return samplePatch_;
+        }
+
+        //- Offset vector (from patch faces to destination mesh objects)
+        const vector& offset() const
+        {
+            return offset_;
+        }
+
+        //- Return reference to the parallel distribution map
+        const mapDistribute& map() const
+        {
+            if (mapPtr_.empty())
+            {
+                calcMapping();
+            }
+            return mapPtr_();
+        }
+
+        //- Cached sampleRegion != mesh.name()
+        bool sameRegion() const
+        {
+            return sameRegion_;
+        }
+
+        //- Get the region mesh
+        const polyMesh& sampleMesh() const;
+
+        //- Get the patch on the region
+        const polyPatch& samplePolyPatch() const;
+
+        //- Write as a dictionary
+        virtual void write(Ostream&) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //
diff --git a/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.C b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.C
index 61697be9b3..ee267a3dbf 100644
--- a/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.C
+++ b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.C
@@ -26,14 +26,6 @@ License
 
 #include "directMappedPolyPatch.H"
 #include "addToRunTimeSelectionTable.H"
-#include "ListListOps.H"
-#include "meshSearch.H"
-#include "mapDistribute.H"
-#include "meshTools.H"
-#include "OFstream.H"
-#include "Random.H"
-#include "treeDataFace.H"
-#include "indexedOctree.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -43,469 +35,11 @@ namespace Foam
 
     addToRunTimeSelectionTable(polyPatch, directMappedPolyPatch, word);
     addToRunTimeSelectionTable(polyPatch, directMappedPolyPatch, dictionary);
-
-
-    template<>
-    const char* NamedEnum<directMappedPolyPatch::sampleMode, 3>::names[] =
-    {
-        "nearestCell",
-        "nearestPatchFace",
-        "nearestFace"
-    };
-
-    const NamedEnum<directMappedPolyPatch::sampleMode, 3>
-        directMappedPolyPatch::sampleModeNames_;
 }
 
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
-void Foam::directMappedPolyPatch::collectSamples
-(
-    pointField& samples,
-    labelList& patchFaceProcs,
-    labelList& patchFaces,
-    pointField& patchFc
-) const
-{
-
-    // Collect all sample points and the faces they come from.
-    List<pointField> globalFc(Pstream::nProcs());
-    List<pointField> globalSamples(Pstream::nProcs());
-    labelListList globalFaces(Pstream::nProcs());
-
-    globalFc[Pstream::myProcNo()] = this->faceCentres();
-    globalSamples[Pstream::myProcNo()] = globalFc[Pstream::myProcNo()]+offset_;
-    globalFaces[Pstream::myProcNo()] = identity(size());
-
-    // Distribute to all processors
-    Pstream::gatherList(globalSamples);
-    Pstream::scatterList(globalSamples);
-    Pstream::gatherList(globalFaces);
-    Pstream::scatterList(globalFaces);
-    Pstream::gatherList(globalFc);
-    Pstream::scatterList(globalFc);
-
-    // Rework into straight list
-    samples = ListListOps::combine<pointField>
-    (
-        globalSamples,
-        accessOp<pointField>()
-    );
-    patchFaces = ListListOps::combine<labelList>
-    (
-        globalFaces,
-        accessOp<labelList>()
-    );
-    patchFc = ListListOps::combine<pointField>
-    (
-        globalFc,
-        accessOp<pointField>()
-    );
-
-    patchFaceProcs.setSize(patchFaces.size());
-    labelList nPerProc
-    (
-        ListListOps::subSizes
-        (
-            globalFaces,
-            accessOp<labelList>()
-        )
-    );
-    label sampleI = 0;
-    forAll(nPerProc, procI)
-    {
-        for (label i = 0; i < nPerProc[procI]; i++)
-        {
-            patchFaceProcs[sampleI++] = procI;
-        }
-    }
-}
-
-
-// Find the processor/cell containing the samples. Does not account
-// for samples being found in two processors.
-void Foam::directMappedPolyPatch::findSamples
-(
-    const pointField& samples,
-    labelList& sampleProcs,
-    labelList& sampleIndices,
-    pointField& sampleLocations
-) const
-{
-    const polyMesh& mesh = boundaryMesh().mesh();
-
-    // All the info for nearest. Construct to miss
-    List<nearInfo> nearest(samples.size());
-
-    switch (mode_)
-    {
-        case NEARESTCELL:
-        {
-            if (samplePatch_.size() && samplePatch_ != "none")
-            {
-                FatalErrorIn
-                (
-                    "directMappedPolyPatch::findSamples(const pointField&,"
-                    " labelList&, labelList&, pointField&) const"
-                )   << "No need to supply a patch name when in "
-                    << sampleModeNames_[mode_] << " mode." << exit(FatalError);
-            }
-
-            // Octree based search engine
-            meshSearch meshSearchEngine(mesh, false);
-
-            forAll(samples, sampleI)
-            {
-                const point& sample = samples[sampleI];
-
-                label cellI = meshSearchEngine.findCell(sample);
-
-                if (cellI == -1)
-                {
-                    nearest[sampleI].second().first() = Foam::sqr(GREAT);
-                    nearest[sampleI].second().second() = Pstream::myProcNo();
-                }
-                else
-                {
-                    const point& cc = mesh.cellCentres()[cellI];
-
-                    nearest[sampleI].first() = pointIndexHit
-                    (
-                        true,
-                        cc,
-                        cellI
-                    );
-                    nearest[sampleI].second().first() = magSqr(cc-sample);
-                    nearest[sampleI].second().second() = Pstream::myProcNo();
-                }
-            }
-            break;
-        }
-
-        case NEARESTPATCHFACE:
-        {
-            label patchI = boundaryMesh().findPatchID(samplePatch_);
-
-            if (patchI == -1)
-            {
-                FatalErrorIn("directMappedPolyPatch::findSamples(..)")
-                    << "Cannot find patch " << samplePatch_ << endl
-                    << "Valid patches are " << boundaryMesh().names()
-                    << exit(FatalError);
-            }
-
-            Random rndGen(123456);
-
-            const polyPatch& pp = boundaryMesh()[patchI];
-
-            if (pp.empty())
-            {
-                forAll(samples, sampleI)
-                {
-                    nearest[sampleI].second().first() = Foam::sqr(GREAT);
-                    nearest[sampleI].second().second() = Pstream::myProcNo();
-                }
-            }
-            else
-            {
-                // patch faces
-                const labelList patchFaces(identity(pp.size()) + pp.start());
-
-                treeBoundBox patchBb
-                (
-                    treeBoundBox(pp.points(), pp.meshPoints()).extend
-                    (
-                        rndGen,
-                        1E-4
-                    )
-                );
-                patchBb.min() -= point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
-                patchBb.max() += point(ROOTVSMALL, ROOTVSMALL, ROOTVSMALL);
-
-                autoPtr<indexedOctree<treeDataFace> > boundaryTree
-                (
-                    new indexedOctree<treeDataFace>
-                    (
-                        treeDataFace  // all information needed to search faces
-                        (
-                            false,                      // do not cache bb
-                            mesh,
-                            patchFaces                  // boundary faces only
-                        ),
-                        patchBb,   // overall search domain
-                        8,                              // maxLevel
-                        10,                             // leafsize
-                        3.0                             // duplicity
-                    )
-                );
-
-                forAll(samples, sampleI)
-                {
-                    const point& sample = samples[sampleI];
-
-                    pointIndexHit& nearInfo = nearest[sampleI].first();
-                    nearInfo = boundaryTree().findNearest
-                    (
-                        sample,
-                        magSqr(patchBb.span())
-                    );
-
-                    if (!nearInfo.hit())
-                    {
-                        nearest[sampleI].second().first() = Foam::sqr(GREAT);
-                        nearest[sampleI].second().second() =
-                            Pstream::myProcNo();
-                    }
-                    else
-                    {
-                        point fc(pp[nearInfo.index()].centre(pp.points()));
-                        nearInfo.setPoint(fc);
-                        nearest[sampleI].second().first() = magSqr(fc-sample);
-                        nearest[sampleI].second().second() =
-                            Pstream::myProcNo();
-                    }
-                }
-            }
-            break;
-        }
-
-        case NEARESTFACE:
-        {
-            if (samplePatch_.size() && samplePatch_ != "none")
-            {
-                FatalErrorIn
-                (
-                    "directMappedPolyPatch::findSamples(const pointField&,"
-                    " labelList&, labelList&, pointField&) const"
-                )   << "No need to supply a patch name when in "
-                    << sampleModeNames_[mode_] << " mode." << exit(FatalError);
-            }
-
-            // Octree based search engine
-            meshSearch meshSearchEngine(mesh, false);
-
-            forAll(samples, sampleI)
-            {
-                const point& sample = samples[sampleI];
-
-                label faceI = meshSearchEngine.findNearestFace(sample);
-
-                if (faceI == -1)
-                {
-                    nearest[sampleI].second().first() = Foam::sqr(GREAT);
-                    nearest[sampleI].second().second() = Pstream::myProcNo();
-                }
-                else
-                {
-                    const point& fc = mesh.faceCentres()[faceI];
-
-                    nearest[sampleI].first() = pointIndexHit
-                    (
-                        true,
-                        fc,
-                        faceI
-                    );
-                    nearest[sampleI].second().first() = magSqr(fc-sample);
-                    nearest[sampleI].second().second() = Pstream::myProcNo();
-                }
-            }
-            break;
-        }
-
-        default:
-        {
-            FatalErrorIn("directMappedPolyPatch::findSamples(..)")
-                << "problem." << abort(FatalError);
-        }
-    }
-
-
-    // Find nearest.
-    Pstream::listCombineGather(nearest, nearestEqOp());
-    Pstream::listCombineScatter(nearest);
-
-    if (debug)
-    {
-        Info<< "directMappedPolyPatch::findSamples : " << endl;
-        forAll(nearest, sampleI)
-        {
-            label procI = nearest[sampleI].second().second();
-            label localI = nearest[sampleI].first().index();
-
-            Info<< "    " << sampleI << " coord:"<< samples[sampleI]
-                << " found on processor:" << procI
-                << " in local cell/face:" << localI
-                << " with cc:" << nearest[sampleI].first().rawPoint() << endl;
-        }
-    }
-
-    // Check for samples not being found
-    forAll(nearest, sampleI)
-    {
-        if (!nearest[sampleI].first().hit())
-        {
-            FatalErrorIn
-            (
-                "directMappedPolyPatch::findSamples"
-                "(const pointField&, labelList&"
-                ", labelList&, pointField&)"
-            )   << "Did not find sample " << samples[sampleI]
-                << " on any processor." << exit(FatalError);
-        }
-    }
-
-
-    // Convert back into proc+local index
-    sampleProcs.setSize(samples.size());
-    sampleIndices.setSize(samples.size());
-    sampleLocations.setSize(samples.size());
-
-    forAll(nearest, sampleI)
-    {
-        sampleProcs[sampleI] = nearest[sampleI].second().second();
-        sampleIndices[sampleI] = nearest[sampleI].first().index();
-        sampleLocations[sampleI] = nearest[sampleI].first().hitPoint();
-    }
-}
-
-
-void Foam::directMappedPolyPatch::calcMapping() const
-{
-    if (sendLabelsPtr_.valid())
-    {
-        FatalErrorIn("directMappedPolyPatch::calcMapping() const")
-            << "Mapping already calculated" << exit(FatalError);
-    }
-
-    if (offset_ == vector::zero)
-    {
-        FatalErrorIn("directMappedPolyPatch::calcMapping() const")
-            << "Invalid offset " << offset_ << endl
-            << "Offset is the vector added to the patch face centres to"
-            << " find the cell supplying the data."
-            << exit(FatalError);
-    }
-
-
-    // Get global list of all samples and the processor and face they come from.
-    pointField samples;
-    labelList patchFaceProcs;
-    labelList patchFaces;
-    pointField patchFc;
-    collectSamples(samples, patchFaceProcs, patchFaces, patchFc);
-
-    // Find processor and cell/face samples are in and actual location.
-    labelList sampleProcs;
-    labelList sampleIndices;
-    pointField sampleLocations;
-    findSamples(samples, sampleProcs, sampleIndices, sampleLocations);
-
-
-    // Now we have all the data we need:
-    // - where sample originates from (so destination when mapping):
-    //   patchFaces, patchFaceProcs.
-    // - cell/face sample is in (so source when mapping)
-    //   sampleIndices, sampleProcs.
-
-
-    if (debug && Pstream::master())
-    {
-        OFstream str
-        (
-            boundaryMesh().mesh().time().path()
-          / name()
-          + "_directMapped.obj"
-        );
-        Pout<< "Dumping mapping as lines from patch faceCentres to"
-            << " sampled cellCentres to file " << str.name() << endl;
-
-        label vertI = 0;
-
-        forAll(patchFc, i)
-        {
-            meshTools::writeOBJ(str, patchFc[i]);
-            vertI++;
-            meshTools::writeOBJ(str, sampleLocations[i]);
-            vertI++;
-            str << "l " << vertI-1 << ' ' << vertI << nl;
-        }
-    }
-
-
-    // Check that actual offset vector (sampleLocations - patchFc) is more or
-    // less constant.
-    if (Pstream::master())
-    {
-        const scalarField magOffset(mag(sampleLocations - patchFc));
-        const scalar avgOffset(average(magOffset));
-
-        forAll(magOffset, sampleI)
-        {
-            if (mag(magOffset[sampleI]-avgOffset) > 0.001*avgOffset)
-            {
-                WarningIn("directMappedPolyPatch::calcMapping() const")
-                    << "The actual cell centres picked up using offset "
-                    << offset_ << " are not" << endl
-                    << "    on a single plane."
-                    << " This might give numerical problems." << endl
-                    << "    At patchface " << patchFc[sampleI]
-                    << " the sampled cell " << sampleLocations[sampleI] << endl
-                    << "    is not on a plane " << avgOffset
-                    << " offset from the patch." << endl
-                    << "    You might want to shift your plane offset."
-                    << " Set the debug flag to get a dump of sampled cells."
-                    << endl;
-                break;
-            }
-        }
-    }
-
-
-    // Determine schedule.
-    mapDistribute distMap(sampleProcs, patchFaceProcs);
-
-    // Rework the schedule to cell data to send, face data to receive.
-    schedulePtr_.reset(new List<labelPair>(distMap.schedule()));
-
-    const labelListList& subMap = distMap.subMap();
-    const labelListList& constructMap = distMap.constructMap();
-
-    // Extract the particular data I need to send and receive.
-    sendLabelsPtr_.reset(new labelListList(subMap.size()));
-    labelListList& sendLabels = sendLabelsPtr_();
-
-    forAll(subMap, procI)
-    {
-        sendLabels[procI] = UIndirectList<label>
-        (
-            sampleIndices,
-            subMap[procI]
-        );
-
-        if (debug)
-        {
-            Pout<< "To proc:" << procI << " sending values of cells/faces:"
-                << sendLabels[procI] << endl;
-        }
-    }
-
-    receiveFaceLabelsPtr_.reset(new labelListList(constructMap.size()));
-    labelListList& receiveFaceLabels = receiveFaceLabelsPtr_();
-
-    forAll(constructMap, procI)
-    {
-        receiveFaceLabels[procI] =
-            UIndirectList<label>(patchFaces, constructMap[procI]);
-
-        if (debug)
-        {
-            Pout<< "From proc:" << procI << " receiving values of patch faces:"
-                << receiveFaceLabels[procI] << endl;
-        }
-    }
-}
-
 
 // * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * * * * * //
 
@@ -519,12 +53,7 @@ Foam::directMappedPolyPatch::directMappedPolyPatch
 )
 :
     polyPatch(name, size, start, index, bm),
-    mode_(NEARESTPATCHFACE),
-    samplePatch_("none"),
-    offset_(vector::zero),
-    schedulePtr_(NULL),
-    sendLabelsPtr_(NULL),
-    receiveFaceLabelsPtr_(NULL)
+    directMappedPatchBase(static_cast<const polyPatch&>(*this))
 {}
 
 
@@ -537,12 +66,7 @@ Foam::directMappedPolyPatch::directMappedPolyPatch
 )
 :
     polyPatch(name, dict, index, bm),
-    mode_(sampleModeNames_.read(dict.lookup("sampleMode"))),
-    samplePatch_(dict.lookup("samplePatch")),
-    offset_(dict.lookup("offset")),
-    schedulePtr_(NULL),
-    sendLabelsPtr_(NULL),
-    receiveFaceLabelsPtr_(NULL)
+    directMappedPatchBase(*this, dict)
 {}
 
 
@@ -553,12 +77,11 @@ Foam::directMappedPolyPatch::directMappedPolyPatch
 )
 :
     polyPatch(pp, bm),
-    mode_(pp.mode_),
-    samplePatch_(pp.samplePatch_),
-    offset_(pp.offset_),
-    schedulePtr_(NULL),
-    sendLabelsPtr_(NULL),
-    receiveFaceLabelsPtr_(NULL)
+    directMappedPatchBase
+    (
+        *this,
+        static_cast<const directMappedPatchBase&>(*this)
+    )
 {}
 
 
@@ -572,12 +95,11 @@ Foam::directMappedPolyPatch::directMappedPolyPatch
 )
 :
     polyPatch(pp, bm, index, newSize, newStart),
-    mode_(pp.mode_),
-    samplePatch_(pp.samplePatch_),
-    offset_(pp.offset_),
-    schedulePtr_(NULL),
-    sendLabelsPtr_(NULL),
-    receiveFaceLabelsPtr_(NULL)
+    directMappedPatchBase
+    (
+        *this,
+        static_cast<const directMappedPatchBase&>(*this)
+    )
 {}
 
 
@@ -585,28 +107,59 @@ Foam::directMappedPolyPatch::directMappedPolyPatch
 
 Foam::directMappedPolyPatch::~directMappedPolyPatch()
 {
-    clearOut();
+    directMappedPatchBase::clearOut();
 }
 
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-void Foam::directMappedPolyPatch::clearOut()
+//- Initialise the calculation of the patch geometry
+void Foam::directMappedPolyPatch::initGeometry()
 {
-    schedulePtr_.clear();
-    sendLabelsPtr_.clear();
-    receiveFaceLabelsPtr_.clear();
+    polyPatch::initGeometry();
+    directMappedPatchBase::clearOut();
+}
+
+//- Calculate the patch geometry
+void Foam::directMappedPolyPatch::calcGeometry()
+{
+    polyPatch::calcGeometry();
+    directMappedPatchBase::clearOut();
+}
+
+//- Initialise the patches for moving points
+void Foam::directMappedPolyPatch::initMovePoints(const pointField& p)
+{
+    polyPatch::initMovePoints(p);
+    directMappedPatchBase::clearOut();
+}
+
+//- Correct patches after moving points
+void Foam::directMappedPolyPatch::movePoints(const pointField& p)
+{
+    polyPatch::movePoints(p);
+    directMappedPatchBase::clearOut();
+}
+
+//- Initialise the update of the patch topology
+void Foam::directMappedPolyPatch::initUpdateMesh()
+{
+    polyPatch::initUpdateMesh();
+    directMappedPatchBase::clearOut();
+}
+
+//- Update of the patch topology
+void Foam::directMappedPolyPatch::updateMesh()
+{
+    polyPatch::updateMesh();
+    directMappedPatchBase::clearOut();
 }
 
 
 void Foam::directMappedPolyPatch::write(Ostream& os) const
 {
     polyPatch::write(os);
-    os.writeKeyword("sampleMode") << sampleModeNames_[mode_]
-        << token::END_STATEMENT << nl;
-    os.writeKeyword("samplePatch") << samplePatch_
-        << token::END_STATEMENT << nl;
-    os.writeKeyword("offset") << offset_ << token::END_STATEMENT << nl;
+    directMappedPatchBase::write(os);
 }
 
 
diff --git a/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.H b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.H
index 413737aa80..522564b337 100644
--- a/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.H
+++ b/src/meshTools/directMapped/directMappedPolyPatch/directMappedPolyPatch.H
@@ -42,9 +42,7 @@ SourceFiles
 #define directMappedPolyPatch_H
 
 #include "polyPatch.H"
-#include "labelPair.H"
-#include "Tuple2.H"
-#include "pointIndexHit.H"
+#include "directMappedPatchBase.H"
 
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -52,148 +50,37 @@ SourceFiles
 namespace Foam
 {
 
+class polyMesh;
+
 /*---------------------------------------------------------------------------*\
                       Class directMappedPolyPatch Declaration
 \*---------------------------------------------------------------------------*/
 
 class directMappedPolyPatch
 :
-    public polyPatch
+    public polyPatch,
+    public directMappedPatchBase
 {
 
-public:
-
-        //- Mesh items to sample
-        enum sampleMode
-        {
-            NEARESTCELL,
-            NEARESTPATCHFACE,
-            NEARESTFACE
-        };
-
-private:
-
-    // Private data
-
-        static const NamedEnum<sampleMode, 3> sampleModeNames_;
-
-        //- What to sample
-        sampleMode mode_;
-
-        //- Patch (only if NEARESTBOUNDARY)
-        const word samplePatch_;
-
-        //- Offset vector
-        const vector offset_;
-
-
-
-        // Derived information
-
-            //- Communication schedule.
-            mutable autoPtr<List<labelPair> > schedulePtr_;
-
-            //- Cells/faces to sample per processor
-            mutable autoPtr<labelListList> sendLabelsPtr_;
-
-            //- Patch faces to receive per processor
-            mutable autoPtr<labelListList> receiveFaceLabelsPtr_;
-
-
-    // Private Member Functions
-
-        //- Collect single list of samples and originating processor+face.
-        void collectSamples
-        (
-            pointField&,
-            labelList& patchFaceProcs,
-            labelList& patchFaces,
-            pointField& patchFc
-        ) const;
-
-        //- Find cells/faces containing samples
-        void findSamples
-        (
-            const pointField&,
-            labelList& sampleProcs,     // processor containing sample
-            labelList& sampleIndices,   // local index of cell/face
-            pointField& sampleLocations // actual representative location
-        ) const;
-
-        //- Calculate matching
-        void calcMapping() const;
-
-
-    // Private class
-
-        //- Private class for finding nearest
-        //  - point+local index
-        //  - sqr(distance)
-        //  - processor
-        typedef Tuple2<pointIndexHit, Tuple2<scalar, label> > nearInfo;
-
-        class nearestEqOp
-        {
-
-        public:
-
-            void operator()(nearInfo& x, const nearInfo& y) const
-            {
-                if (y.first().hit())
-                {
-                    if (!x.first().hit())
-                    {
-                        x = y;
-                    }
-                    else if (y.second().first() < x.second().first())
-                    {
-                        x = y;
-                    }
-                }
-            }
-        };
-
-
-
 protected:
 
-        void clearOut();
-
         //- Initialise the calculation of the patch geometry
-        virtual void initGeometry()
-        {
-            clearOut();
-        }
+        virtual void initGeometry();
 
         //- Calculate the patch geometry
-        virtual void calcGeometry()
-        {
-            clearOut();
-        }
+        virtual void calcGeometry();
 
         //- Initialise the patches for moving points
-        virtual void initMovePoints(const pointField&)
-        {
-            clearOut();
-        }
+        virtual void initMovePoints(const pointField&);
 
         //- Correct patches after moving points
-        virtual void movePoints(const pointField& p)
-        {
-            clearOut();
-        }
+        virtual void movePoints(const pointField&);
 
         //- Initialise the update of the patch topology
-        virtual void initUpdateMesh()
-        {
-            clearOut();
-        }
+        virtual void initUpdateMesh();
 
         //- Update of the patch topology
-        virtual void updateMesh()
-        {
-            clearOut();
-        }
+        virtual void updateMesh();
 
 
 public:
@@ -271,72 +158,6 @@ public:
 
     // Member functions
 
-        //- What to sample
-        const sampleMode& mode() const
-        {
-            return mode_;
-        }
-
-        //- Patch (only if NEARESTBOUNDARY)
-        const word& samplePatch() const
-        {
-            return samplePatch_;
-        }
-
-        //- Offset vector (from patch faces to destination mesh objects)
-        const vector& offset() const
-        {
-            return offset_;
-        }
-
-        //- Access to communication.
-        const List<labelPair>& schedule() const
-        {
-            if (schedulePtr_.empty())
-            {
-                calcMapping();
-            }
-            return schedulePtr_();
-        }
-
-        //- Cells/faces to sample per processor
-        const labelListList& sendLabels() const
-        {
-            if (debug)
-            {
-                Pout<< "Asking for sendLabels." << endl;
-            }
-
-            if (sendLabelsPtr_.empty())
-            {
-                if (debug)
-                {
-                    Pout<< "Calculating mapping." << endl;
-                    calcMapping();
-                }
-            }
-            return sendLabelsPtr_();
-        }
-
-        //- Patch faces to receive per processor
-        const labelListList& receiveFaceLabels() const
-        {
-            if (debug)
-            {
-                Pout<< "Asking for receiveFaceLabels." << endl;
-            }
-
-            if (receiveFaceLabelsPtr_.empty())
-            {
-                if (debug)
-                {
-                    Pout<< "Calculating mapping." << endl;
-                    calcMapping();
-                }
-            }
-            return receiveFaceLabelsPtr_();
-        }
-
         //- Write the polyPatch data as a dictionary
         virtual void write(Ostream&) const;
 };
diff --git a/src/meshTools/directMapped/directMappedPolyPatch/directMappedWallPolyPatch.C b/src/meshTools/directMapped/directMappedPolyPatch/directMappedWallPolyPatch.C
new file mode 100644
index 0000000000..ac2b8ff921
--- /dev/null
+++ b/src/meshTools/directMapped/directMappedPolyPatch/directMappedWallPolyPatch.C
@@ -0,0 +1,171 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "directMappedWallPolyPatch.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(directMappedWallPolyPatch, 0);
+
+    addToRunTimeSelectionTable(polyPatch, directMappedWallPolyPatch, word);
+    addToRunTimeSelectionTable
+    (
+        polyPatch,
+        directMappedWallPolyPatch,
+        dictionary
+    );
+}
+
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+
+// * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * * * * * //
+
+Foam::directMappedWallPolyPatch::directMappedWallPolyPatch
+(
+    const word& name,
+    const label size,
+    const label start,
+    const label index,
+    const polyBoundaryMesh& bm
+)
+:
+    wallPolyPatch(name, size, start, index, bm),
+    directMappedPatchBase(static_cast<const polyPatch&>(*this))
+{}
+
+
+Foam::directMappedWallPolyPatch::directMappedWallPolyPatch
+(
+    const word& name,
+    const dictionary& dict,
+    const label index,
+    const polyBoundaryMesh& bm
+)
+:
+    wallPolyPatch(name, dict, index, bm),
+    directMappedPatchBase(*this, dict)
+{}
+
+
+Foam::directMappedWallPolyPatch::directMappedWallPolyPatch
+(
+    const directMappedWallPolyPatch& pp,
+    const polyBoundaryMesh& bm
+)
+:
+    wallPolyPatch(pp, bm),
+    directMappedPatchBase
+    (
+        *this,
+        static_cast<const directMappedPatchBase&>(*this)
+    )
+{}
+
+
+Foam::directMappedWallPolyPatch::directMappedWallPolyPatch
+(
+    const directMappedWallPolyPatch& pp,
+    const polyBoundaryMesh& bm,
+    const label index,
+    const label newSize,
+    const label newStart
+)
+:
+    wallPolyPatch(pp, bm, index, newSize, newStart),
+    directMappedPatchBase
+    (
+        *this,
+        static_cast<const directMappedPatchBase&>(*this)
+    )
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::directMappedWallPolyPatch::~directMappedWallPolyPatch()
+{
+    directMappedPatchBase::clearOut();
+}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+//- Initialise the calculation of the patch geometry
+void Foam::directMappedWallPolyPatch::initGeometry()
+{
+    wallPolyPatch::initGeometry();
+    directMappedPatchBase::clearOut();
+}
+
+//- Calculate the patch geometry
+void Foam::directMappedWallPolyPatch::calcGeometry()
+{
+    wallPolyPatch::calcGeometry();
+    directMappedPatchBase::clearOut();
+}
+
+//- Initialise the patches for moving points
+void Foam::directMappedWallPolyPatch::initMovePoints(const pointField& p)
+{
+    wallPolyPatch::initMovePoints(p);
+    directMappedPatchBase::clearOut();
+}
+
+//- Correct patches after moving points
+void Foam::directMappedWallPolyPatch::movePoints(const pointField& p)
+{
+    wallPolyPatch::movePoints(p);
+    directMappedPatchBase::clearOut();
+}
+
+//- Initialise the update of the patch topology
+void Foam::directMappedWallPolyPatch::initUpdateMesh()
+{
+    wallPolyPatch::initUpdateMesh();
+    directMappedPatchBase::clearOut();
+}
+
+//- Update of the patch topology
+void Foam::directMappedWallPolyPatch::updateMesh()
+{
+    wallPolyPatch::updateMesh();
+    directMappedPatchBase::clearOut();
+}
+
+
+void Foam::directMappedWallPolyPatch::write(Ostream& os) const
+{
+    wallPolyPatch::write(os);
+    directMappedPatchBase::write(os);
+}
+
+
+// ************************************************************************* //
diff --git a/src/meshTools/directMapped/directMappedPolyPatch/directMappedWallPolyPatch.H b/src/meshTools/directMapped/directMappedPolyPatch/directMappedWallPolyPatch.H
new file mode 100644
index 0000000000..33a0c1e557
--- /dev/null
+++ b/src/meshTools/directMapped/directMappedPolyPatch/directMappedWallPolyPatch.H
@@ -0,0 +1,181 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::directMappedWallPolyPatch
+
+Description
+    Determines a mapping between patch face centres and mesh cell or face
+    centres and processors they're on.
+
+Note
+    Storage is not optimal. It stores all face centres and cells on all
+    processors to keep the addressing calculation simple.
+
+SourceFiles
+    directMappedWallPolyPatch.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef directMappedWallPolyPatch_H
+#define directMappedWallPolyPatch_H
+
+#include "wallPolyPatch.H"
+#include "directMappedPatchBase.H"
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class polyMesh;
+
+/*---------------------------------------------------------------------------*\
+                      Class directMappedWallPolyPatch Declaration
+\*---------------------------------------------------------------------------*/
+
+class directMappedWallPolyPatch
+:
+    public wallPolyPatch,
+    public directMappedPatchBase
+{
+
+protected:
+
+        //- Initialise the calculation of the patch geometry
+        virtual void initGeometry();
+
+        //- Calculate the patch geometry
+        virtual void calcGeometry();
+
+        //- Initialise the patches for moving points
+        virtual void initMovePoints(const pointField&);
+
+        //- Correct patches after moving points
+        virtual void movePoints(const pointField&);
+
+        //- Initialise the update of the patch topology
+        virtual void initUpdateMesh();
+
+        //- Update of the patch topology
+        virtual void updateMesh();
+
+
+public:
+
+    //- Runtime type information
+    TypeName("directMappedPatch");
+
+
+    // Constructors
+
+        //- Construct from components
+        directMappedWallPolyPatch
+        (
+            const word& name,
+            const label size,
+            const label start,
+            const label index,
+            const polyBoundaryMesh& bm
+        );
+
+        //- Construct from dictionary
+        directMappedWallPolyPatch
+        (
+            const word& name,
+            const dictionary& dict,
+            const label index,
+            const polyBoundaryMesh& bm
+        );
+
+        //- Construct as copy, resetting the boundary mesh
+        directMappedWallPolyPatch
+        (
+            const directMappedWallPolyPatch&,
+            const polyBoundaryMesh&
+        );
+
+        //- Construct given the original patch and resetting the
+        //  face list and boundary mesh information
+        directMappedWallPolyPatch
+        (
+            const directMappedWallPolyPatch& pp,
+            const polyBoundaryMesh& bm,
+            const label index,
+            const label newSize,
+            const label newStart
+        );
+
+        //- Construct and return a clone, resetting the boundary mesh
+        virtual autoPtr<polyPatch> clone(const polyBoundaryMesh& bm) const
+        {
+            return autoPtr<polyPatch>(new directMappedWallPolyPatch(*this, bm));
+        }
+
+        //- Construct and return a clone, resetting the face list
+        //  and boundary mesh
+        virtual autoPtr<polyPatch> clone
+        (
+            const polyBoundaryMesh& bm,
+            const label index,
+            const label newSize,
+            const label newStart
+        ) const
+        {
+            return autoPtr<polyPatch>
+            (
+                new directMappedWallPolyPatch
+                (
+                    *this,
+                    bm,
+                    index,
+                    newSize,
+                    newStart
+                )
+            );
+        }
+
+
+    // Destructor
+
+        ~directMappedWallPolyPatch();
+
+
+    // Member functions
+
+        //- Write the polyPatch data as a dictionary
+        virtual void write(Ostream&) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //
diff --git a/tutorials/incompressible/pisoFoam/les/pitzDailyDirectMapped/system/changeDictionaryDict b/tutorials/incompressible/pisoFoam/les/pitzDailyDirectMapped/system/changeDictionaryDict
index 9490b84332..5a186d193e 100644
--- a/tutorials/incompressible/pisoFoam/les/pitzDailyDirectMapped/system/changeDictionaryDict
+++ b/tutorials/incompressible/pisoFoam/les/pitzDailyDirectMapped/system/changeDictionaryDict
@@ -23,6 +23,7 @@ dictionaryReplacement
         {
             type            directMappedPatch;
             offset          ( 0.0495 0 0 );
+            sampleRegion    region0;
             sampleMode      nearestCell;
             samplePatch     none;
         }