deformedGeom.C

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/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | Copyright (C) 2011-2024 OpenFOAM Foundation
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-------------------------------------------------------------------------------
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/>.
 
Application
    deformedGeom
 
Description
    Deforms a polyMesh using a displacement field U and a scaling factor
    supplied as an argument.
 
\*---------------------------------------------------------------------------*/
 
#include "argList.H"
#include "fvMesh.H"
#include "pointFields.H"
#include "IStringStream.H"
#include "volPointInterpolation.H"
 
using namespace Foam;
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
int main(int argc, char *argv[])
{
    #include "addMeshOption.H"
    #include "addRegionOption.H"
    argList::validArgs.append("scaling factor");
 
    #include "setRootCase.H"
 
    const scalar scaleFactor = args.argRead<scalar>(1);
 
    #include "createTime.H"
    #include "createSpecifiedMeshNoChangers.H"
 
    const volPointInterpolation& pInterp(volPointInterpolation::New(mesh));
 
    // Get times list
    instantList Times = runTime.times();
 
    pointField zeroPoints(mesh.points());
 
    // skip "constant" time
    for (label timeI = 1; timeI < Times.size(); ++timeI)
    {
        runTime.setTime(Times[timeI], timeI);
 
        Info<< "Time = " << runTime.userTimeName() << endl;
 
        typeIOobject<volVectorField> Uheader
        (
            "U",
            runTime.name(),
            mesh,
            IOobject::MUST_READ
        );
 
        // Check U exists
        if (Uheader.headerOk())
        {
            Info<< "    Reading U" << endl;
            volVectorField U(Uheader, mesh);
 
            pointField newPoints
            (
                zeroPoints
              + scaleFactor*pInterp.interpolate(U)().primitiveField()
            );
 
            mesh.setPoints(newPoints);
            mesh.write();
        }
        else
        {
            Info<< "    No U" << endl;
        }
 
        Info<< endl;
    }
 
    Info<< "End\n" << endl;
 
    return 0;
}
 
 
// ************************************************************************* //