fieldToCell.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  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/>.
 
\*---------------------------------------------------------------------------*/
 
#include "fieldToCell.H"
#include "polyMesh.H"
#include "cellSet.H"
#include "Time.H"
#include "IFstream.H"
#include "fieldDictionary.H"
 
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
 
defineTypeNameAndDebug(fieldToCell, 0);
 
addToRunTimeSelectionTable(topoSetSource, fieldToCell, word);
 
addToRunTimeSelectionTable(topoSetSource, fieldToCell, istream);
 
}
 
 
Foam::topoSetSource::addToUsageTable Foam::fieldToCell::usage_
(
    fieldToCell::typeName,
    "\n    Usage: fieldToCell field min max\n\n"
    "    Select all cells with field value >= min and <= max\n\n"
);
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::fieldToCell::applyToSet
(
    const topoSetSource::setAction action,
    const scalarField& field,
    topoSet& set
) const
{
    Info<< "    Field min:" << min(field)
        << " max:" << max(field) << endl;
 
    if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
    {
        Info<< "    Adding all cells with value of field " << fieldName_
            << " within range " << min_ << ".." << max_ << endl;
 
        forAll(field, cellI)
        {
            if (field[cellI] >= min_ && field[cellI] <= max_)
            {
                set.insert(cellI);
            }
        }
    }
    else if (action == topoSetSource::DELETE)
    {
        Info<< "    Removing all cells with value of field " << fieldName_
            << " within range " << min_ << ".." << max_ << endl;
 
        forAll(field, cellI)
        {
            if (field[cellI] >= min_ && field[cellI] <= max_)
            {
                set.erase(cellI);
            }
        }
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
// Construct from components
Foam::fieldToCell::fieldToCell
(
    const polyMesh& mesh,
    const word& fieldName,
    const scalar min,
    const scalar max
)
:
    topoSetSource(mesh),
    fieldName_(fieldName),
    min_(min),
    max_(max)
{}
 
 
// Construct from dictionary
Foam::fieldToCell::fieldToCell
(
    const polyMesh& mesh,
    const dictionary& dict
)
:
    topoSetSource(mesh),
    fieldName_(dict.lookup("fieldName")),
    min_(readScalar(dict.lookup("min"))),
    max_(readScalar(dict.lookup("max")))
{}
 
 
// Construct from Istream
Foam::fieldToCell::fieldToCell
(
    const polyMesh& mesh,
    Istream& is
)
:
    topoSetSource(mesh),
    fieldName_(checkIs(is)),
    min_(readScalar(checkIs(is))),
    max_(readScalar(checkIs(is)))
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::fieldToCell::~fieldToCell()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::fieldToCell::applyToSet
(
    const topoSetSource::setAction action,
    topoSet& set
) const
{
 
//    // Construct temporary fvMesh from polyMesh
//    fvMesh fMesh
//    (
//        mesh(), // IOobject
//        mesh().points(),
//        mesh().faces(),
//        mesh().cells()
//    );
//
//    const polyBoundaryMesh& patches = mesh().boundaryMesh();
//
//    List<polyPatch*> newPatches(patches.size());
//    forAll(patches, patchI)
//    {
//        const polyPatch& pp = patches[patchI];
//
//        newPatches[patchI] =
//            patches[patchI].clone
//            (
//                fMesh.boundaryMesh(),
//                patchI,
//                pp.size(),
//                pp.start()
//            ).ptr();
//    }
//    fMesh.addFvPatches(newPatches);
 
    // Try to load field
    IOobject fieldObject
    (
        fieldName_,
        mesh().time().timeName(),
        mesh(),
        IOobject::MUST_READ,
        IOobject::AUTO_WRITE,
        false
    );
 
    if (!fieldObject.headerOk())
    {
        WarningInFunction
            << "Cannot read field " << fieldName_
            << " from time " << mesh().time().timeName() << endl;
    }
    else if (fieldObject.headerClassName() == "volScalarField")
    {
        IFstream str(fieldObject.filePath());
 
        // Read dictionary
        fieldDictionary fieldDict(fieldObject, fieldObject.headerClassName());
 
        scalarField internalVals("internalField", fieldDict, mesh().nCells());
 
        applyToSet(action, internalVals, set);
    }
    else if (fieldObject.headerClassName() == "volVectorField")
    {
        IFstream str(fieldObject.filePath());
 
        // Read dictionary
        fieldDictionary fieldDict(fieldObject, fieldObject.headerClassName());
 
        vectorField internalVals("internalField", fieldDict, mesh().nCells());
 
        applyToSet(action, mag(internalVals), set);
    }
    else
    {
        WarningInFunction
            << "Cannot handle fields of type " << fieldObject.headerClassName()
            << endl;
    }
}
 
 
// ************************************************************************* //