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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 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 "sampledPatchInternalField.H"
#include "cellPoint_interpolation.H"
#include "PrimitivePatchInterpolation.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::sampledSurfaces::patchInternalField::sampleField
(
const VolField<Type>& vField
) const
{
// One value per face
tmp<Field<Type>> tvalues(new Field<Type>(patchFaceLabels().size()));
Field<Type>& values = tvalues.ref();
forAll(patchStart(), i)
{
// Get patchface wise data by sampling internal field
Field<Type> interpVals = vField.primitiveField();
mappers_[i].map().distribute(interpVals);
// Store at correct position in values
label end =
(
i < patchStart().size()-1
? patchStart()[i+1]
: patchFaceLabels().size()
);
for (label triI = patchStart()[i]; triI < end; triI++)
{
values[triI] = interpVals[patchFaceLabels()[triI]];
}
}
return tvalues;
}
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::sampledSurfaces::patchInternalField::interpolateField
(
const interpolation<Type>& interpolator
) const
{
label sz = 0;
forAll(patchIndices(), i)
{
sz += mesh().boundary()[patchIndices()[i]].size();
}
Field<Type> allPatchVals(sz);
sz = 0;
forAll(patchIndices(), i)
{
// Cells on which samples are generated
const labelList& sampleCells = mappers_[i].cellIndices();
// Send the sample points to the cells
const distributionMap& distMap = mappers_[i].map();
pointField samplePoints(mappers_[i].samplePoints());
distMap.reverseDistribute(sampleCells.size(), samplePoints);
// Interpolate values
Field<Type> sampleValues(sampleCells.size());
forAll(sampleCells, i)
{
if (sampleCells[i] != -1)
{
sampleValues[i] =
interpolator.interpolate(samplePoints[i], sampleCells[i]);
}
}
// Send the values back to the patch
Field<Type> patchValues(sampleValues);
distMap.distribute(patchValues);
// Insert into the full value field
SubList<Type>(allPatchVals, patchValues.size(), sz) = patchValues;
sz += patchValues.size();
}
// Interpolate to points. Reconstruct the patch of all faces to aid
// interpolation.
labelList meshFaceLabels(allPatchVals.size());
sz = 0;
forAll(patchIndices(), i)
{
const polyPatch& pp = mesh().boundary()[patchIndices()[i]];
forAll(pp, i)
{
meshFaceLabels[sz++] = pp.start()+i;
}
}
indirectPrimitivePatch allPatches
(
IndirectList<face>(mesh().faces(), meshFaceLabels),
mesh().points()
);
return PrimitivePatchInterpolation<indirectPrimitivePatch>
(
allPatches
).faceToPointInterpolate(allPatchVals);
}
// ************************************************************************* //
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