adding mag post-processing utility

applications/utilities/postProcessing/Field/mag/Make/files

@@ -0,0 +1,3 @@
+mag.C
+
+EXE = $(FOAM_APPBIN)/mag

applications/utilities/postProcessing/Field/mag/Make/options

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+EXE_INC = \
+    -I$(LIB_SRC)/finiteVolume/lnInclude
+
+EXE_LIBS = \
+    -lfiniteVolume \
+   

applications/utilities/postProcessing/Field/mag/mag.C

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+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2007 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
+
+Application
+    mag
+
+Description
+    Calculates and writes the magnitude of a field for each time
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+template<class Type>
+void writeMagField
+(
+    const IOobject& header,
+    const fvMesh& mesh,
+    bool& processed
+)
+{
+    typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
+
+    if (header.headerClassName() == fieldType::typeName)
+    {
+        Info<< "    Reading " << header.name() << endl;
+        fieldType field(header, mesh);
+
+        Info<< "    Calculating mag" << header.name() << endl;
+        volScalarField magField
+        (
+            IOobject
+            (
+                "mag" + header.name(),
+                mesh.time().timeName(),
+                mesh,
+                IOobject::NO_READ
+            ),
+            mag(field)
+        );
+        magField.write();
+
+        processed = true;
+    }
+}
+
+
+int main(int argc, char *argv[])
+{
+    argList::validArgs.append("fieldName");
+
+#   include "addTimeOptions.H"
+#   include "setRootCase.H"
+
+    word fieldName(args.additionalArgs()[0]);
+
+#   include "createTime.H"
+
+    // Get times list
+    instantList Times = runTime.times();
+
+    // set startTime and endTime depending on -time and -latestTime options
+#   include "checkTimeOptions.H"
+
+    runTime.setTime(Times[startTime], startTime);
+
+#   include "createMesh.H"
+
+    for (label i=startTime; i<endTime; i++)
+    {
+        runTime.setTime(Times[i], i);
+
+        Info<< "Time = " << runTime.timeName() << endl;
+
+        IOobject fieldHeader
+        (
+            fieldName,
+            runTime.timeName(),
+            mesh,
+            IOobject::MUST_READ
+        );
+
+        // Check field "fieldName" exists
+        if (fieldHeader.headerOk())
+        {
+            mesh.readUpdate();
+
+            bool processed = false;
+            writeMagField<scalar>(fieldHeader, mesh, processed);
+            writeMagField<vector>(fieldHeader, mesh, processed);
+            writeMagField<sphericalTensor>(fieldHeader, mesh, processed);
+            writeMagField<symmTensor>(fieldHeader, mesh, processed);
+            writeMagField<tensor>(fieldHeader, mesh, processed);
+            if (!processed)
+            {
+                FatalError
+                    << "Unable to process " << fieldName << nl
+                    << "No call to mag for fields of type "
+                    << fieldHeader.headerClassName() << nl << nl
+                    << exit(FatalError);
+            }
+        }
+        else
+        {
+            Info<< "    No " << fieldName << endl;
+        }
+
+        Info<< endl;
+    }
+
+    Info<< "End\n" << endl;
+
+    return(0);
+}
+
+
+// ************************************************************************* //