interpolatePointToCell.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
     \\/     M anipulation  |
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License
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    (at your option) any later version.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "interpolatePointToCell.H"
 
// * * * * * * * * * * * * * * * Global Functions  * * * * * * * * * * * * * //
 
template<class Type>
Type Foam::interpolatePointToCell
(
    const GeometricField<Type, pointPatchField, pointMesh>& ptf,
    const label celli
)
{
    const primitiveMesh& mesh = ptf.mesh()();
 
    const cell& cFaces = mesh.cells()[celli];
 
    labelHashSet pointHad(10*cFaces.size());
 
    Type sum(pTraits<Type>::zero);
 
    forAll(cFaces, i)
    {
        const face& f = mesh.faces()[cFaces[i]];
 
        forAll(f, fp)
        {
            label v = f[fp];
 
            if (pointHad.insert(v))
            {
                sum += ptf[v];
            }
        }
    }
 
    return sum/pointHad.size();
}
 
 
// ************************************************************************* //