vtkPVFoamSurfaceField.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2011-2022 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/>.
 
InClass
    vtkPVFoam
 
\*---------------------------------------------------------------------------*/
 
#ifndef vtkPVFoamSurfaceField_H
#define vtkPVFoamSurfaceField_H
 
#include "surfaceFields.H"
#include "emptyFvsPatchField.H"
 
// VTK includes
#include "vtkCellData.h"
#include "vtkFloatArray.h"
#include "vtkMultiBlockDataSet.h"
#include "vtkPolyData.h"
 
#include "vtkOpenFOAMTupleRemap.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
template<class Type>
void Foam::vtkPVFoam::convertSurfaceField
(
    const VolField<Type>& tf,
    vtkMultiBlockDataSet* output,
    const arrayRange& range,
    const label datasetNo,
    const fvMesh& mesh,
    const labelList& faceLabels
)
{
    const label nComp = pTraits<Type>::nComponents;
    const label nInternalFaces = mesh.nInternalFaces();
    const labelList& faceOwner = mesh.faceOwner();
    const labelList& faceNeigh = mesh.faceNeighbour();
 
    vtkFloatArray* cellData = vtkFloatArray::New();
    cellData->SetNumberOfTuples(faceLabels.size());
    cellData->SetNumberOfComponents(nComp);
    cellData->Allocate(nComp*faceLabels.size());
    cellData->SetName(tf.name().c_str());
 
    if (debug)
    {
        Info<< "convert convertSurfaceField: "
            << tf.name()
            << " size = " << tf.size()
            << " nComp=" << nComp
            << " nTuples = " << faceLabels.size() <<  endl;
    }
 
    float vec[nComp];
 
    // For interior faces: average owner/neighbour
    // For boundary faces: owner
    forAll(faceLabels, facei)
    {
        const label faceNo = faceLabels[facei];
        if (faceNo < nInternalFaces)
        {
            Type t = 0.5*(tf[faceOwner[faceNo]] + tf[faceNeigh[faceNo]]);
 
            for (direction d=0; d<nComp; ++d)
            {
                vec[d] = component(t, d);
            }
        }
        else
        {
            const Type& t = tf[faceOwner[faceNo]];
            for (direction d=0; d<nComp; ++d)
            {
                vec[d] = component(t, d);
            }
        }
        vtkOpenFOAMTupleRemap<Type>(vec);
 
        cellData->InsertTuple(facei, vec);
    }
 
 
    vtkPolyData::SafeDownCast
    (
        GetDataSetFromBlock(output, range, datasetNo)
    )   ->GetCellData()
        ->AddArray(cellData);
 
    cellData->Delete();
}
 
 
template<class Type>
void Foam::vtkPVFoam::convertSurfaceField
(
    const SurfaceField<Type>& tf,
    vtkMultiBlockDataSet* output,
    const arrayRange& range,
    const label datasetNo,
    const fvMesh& mesh,
    const labelList& faceLabels
)
{
    const label nComp = pTraits<Type>::nComponents;
    const label nInternalFaces = mesh.nInternalFaces();
 
    vtkFloatArray* cellData = vtkFloatArray::New();
    cellData->SetNumberOfTuples(faceLabels.size());
    cellData->SetNumberOfComponents(nComp);
    cellData->Allocate(nComp*faceLabels.size());
    cellData->SetName(tf.name().c_str());
 
    if (debug)
    {
        Info<< "convert convertSurfaceField: "
            << tf.name()
            << " size = " << tf.size()
            << " nComp=" << nComp
            << " nTuples = " << faceLabels.size() <<  endl;
    }
 
    // To avoid whichPatch first flatten the field
    Field<Type> flatFld(mesh.nFaces(), Zero);
    SubField<Type>(flatFld, nInternalFaces) = tf.internalField();
    forAll(tf.boundaryField(), patchi)
    {
        const fvsPatchField<Type>& fvs = tf.boundaryField()[patchi];
 
        SubField<Type>
        (
            flatFld,
            fvs.size(),
            fvs.patch().start()
        ) = fvs;
    }
 
 
    // For interior faces: average owner/neighbour
    // For boundary faces: owner
    forAll(faceLabels, facei)
    {
        const label faceNo = faceLabels[facei];
 
        float vec[nComp];
        for (direction d=0; d<nComp; ++d)
        {
            vec[d] = component(flatFld[faceNo], d);
        }
        vtkOpenFOAMTupleRemap<Type>(vec);
 
        cellData->InsertTuple(facei, vec);
    }
 
    vtkPolyData::SafeDownCast
    (
        GetDataSetFromBlock(output, range, datasetNo)
    )   ->GetCellData()
        ->AddArray(cellData);
 
    cellData->Delete();
}
 
 
template<class Type>
void Foam::vtkPVFoam::convertSurfaceFields
(
    const fvMesh& mesh,
    const IOobjectList& objects,
    vtkMultiBlockDataSet* output
)
{
    forAllConstIter(IOobjectList, objects, iter)
    {
        // Restrict to GeometricField<Type, ...>
        if
        (
            iter()->headerClassName()
         != SurfaceField<Type>::typeName
        )
        {
            continue;
        }
 
        // Load field
        const SurfaceField<Type> tf
        (
            *iter(),
            mesh
        );
 
        // Convert patches - if activated
        for
        (
            int partId = arrayRangePatches_.start();
            partId < arrayRangePatches_.end();
            ++partId
        )
        {
            const word patchName = getPartName(partId);
            const label datasetNo = partDataset_[partId];
            const label patchId = mesh.boundaryMesh().findPatchID(patchName);
 
            if (!partStatus_[partId] || datasetNo < 0 || patchId < 0)
            {
                continue;
            }
 
            const fvsPatchField<Type>& ptf = tf.boundaryField()[patchId];
 
            if (!isType<emptyFvsPatchField<Type>>(ptf))
            {
                convertPatchField
                (
                    tf.name(),
                    ptf,
                    output,
                    arrayRangePatches_,
                    datasetNo
                );
            }
        }
 
 
        // Convert face zones - if activated
        for
        (
            int partId = arrayRangeFaceZones_.start();
            partId < arrayRangeFaceZones_.end();
            ++partId
        )
        {
            const word zoneName = getPartName(partId);
            const label datasetNo = partDataset_[partId];
 
            if (!partStatus_[partId] || datasetNo < 0)
            {
                continue;
            }
 
            const meshFaceZones& zMesh = mesh.faceZones();
            const label zoneId = zMesh.findZoneID(zoneName);
 
            if (zoneId < 0)
            {
                continue;
            }
 
            convertSurfaceField
            (
                tf,
                output,
                arrayRangeFaceZones_,
                datasetNo,
                mesh,
                zMesh[zoneId]
            );
        }
 
        // Convert face sets - if activated
        for
        (
            int partId = arrayRangeFaceSets_.start();
            partId < arrayRangeFaceSets_.end();
            ++partId
        )
        {
            const word selectName = getPartName(partId);
            const label datasetNo = partDataset_[partId];
 
            if (!partStatus_[partId] || datasetNo < 0)
            {
                continue;
            }
 
            const faceSet fSet(mesh, selectName);
 
            convertSurfaceField
            (
                tf,
                output,
                arrayRangeFaceSets_,
                datasetNo,
                mesh,
                fSet.toc()
            );
        }
    }
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //