mapFields: Reinstated mapFields from OpenFOAM-2.2.x and renamed the current mapFields -> mapFieldsPar

This required the addition of the meshToMesh class in the sampling
library from OpenFOAM-2.2.x which is now named meshToMesh0.

applications/utilities/preProcessing/mapFieldsPar/MapVolFields.H

@@ -0,0 +1,104 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef MapConsistentVolFields_H
+#define MapConsistentVolFields_H
+
+#include "GeometricField.H"
+#include "meshToMesh.H"
+#include "IOobjectList.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+template<class Type, class CombineOp>
+void MapVolFields
+(
+    const IOobjectList& objects,
+    const HashSet<word>& selectedFields,
+    const meshToMesh& interp,
+    const CombineOp& cop
+)
+{
+    typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
+
+    const fvMesh& meshSource = static_cast<const fvMesh&>(interp.srcRegion());
+    const fvMesh& meshTarget = static_cast<const fvMesh&>(interp.tgtRegion());
+
+    IOobjectList fields = objects.lookupClass(fieldType::typeName);
+
+    forAllIter(IOobjectList, fields, fieldIter)
+    {
+        const word& fieldName = fieldIter()->name();
+
+        if (selectedFields.empty() || selectedFields.found(fieldName))
+        {
+            Info<< "    interpolating " << fieldName << endl;
+
+            const fieldType fieldSource(*fieldIter(), meshSource);
+
+            IOobject targetIO
+            (
+                fieldName,
+                meshTarget.time().timeName(),
+                meshTarget,
+                IOobject::MUST_READ
+            );
+
+            if (targetIO.headerOk())
+            {
+                fieldType fieldTarget(targetIO, meshTarget);
+
+                interp.mapSrcToTgt(fieldSource, cop, fieldTarget);
+
+                fieldTarget.write();
+            }
+            else
+            {
+                targetIO.readOpt() = IOobject::NO_READ;
+
+                tmp<fieldType>
+                    tfieldTarget(interp.mapSrcToTgt(fieldSource, cop));
+
+                fieldType fieldTarget(targetIO, tfieldTarget);
+
+                fieldTarget.write();
+            }
+        }
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //