writePointFields.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2018-2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
 
Description
    Code chunk for reading point fields from disk
    and write with vtk::internalWriter and vtk::patchWriter
 
\*---------------------------------------------------------------------------*/
 
#ifndef FoamToVTK_writePointFields_H
#define FoamToVTK_writePointFields_H
 
#include "readFields.H"
#include "foamVtkInternalWriter.H"
#include "foamVtkPatchWriter.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
template<class GeoField>
bool writePointField
(
    autoPtr<vtk::internalWriter>& internalWriter,
    UPtrList<vtk::patchWriter>& patchWriters,
 
    const tmp<GeoField>& tfield,
    const fvMeshSubsetProxy& proxy
)
{
    // Sanity test
    if (!internalWriter && patchWriters.empty()) return false;
 
    if (!tfield)
    {
        return false;
    }
 
    tmp<GeoField> tproxied;
    if (proxy.useSubMesh())
    {
        tproxied = proxy.interpolate(tfield());
        tfield.clear();
    }
    else
    {
        tproxied = tfield;
    }
 
    if (!tproxied)
    {
        // Or Error?
        return false;
    }
 
 
    const auto& field = tproxied();
 
    // Internal
    if (internalWriter)
    {
        internalWriter->write(field);
    }
 
    // Boundary
    for (auto& writer : patchWriters)
    {
        writer.write(field);
    }
 
 
    tproxied.clear();
 
    return true;
}
 
 
template<class GeoField>
label writePointFields
(
    autoPtr<vtk::internalWriter>& internalWriter,
    UPtrList<vtk::patchWriter>& patchWriters,
 
    const fvMeshSubsetProxy& proxy,
    const typename GeoField::Mesh& ptMesh,
    const IOobjectList& objects,
    const bool syncPar
)
{
    // Sanity test
    if (!internalWriter && patchWriters.empty()) return 0;
 
    label count = 0;
 
    for (const word& fieldName : objects.sortedNames<GeoField>())
    {
        if
        (
            writePointField<GeoField>
            (
                internalWriter,
                patchWriters,
                getField<GeoField>(ptMesh, objects, fieldName, syncPar),
                proxy
            )
        )
        {
            ++count;
        }
    }
 
    return count;
}
 
 
label writeAllPointFields
(
    autoPtr<vtk::internalWriter>& internalWriter,
    UPtrList<vtk::patchWriter>& patchWriters,
 
    const fvMeshSubsetProxy& proxy,
    const IOobjectList& objects,
    const bool syncPar
)
{
    // Sanity test
    if (!internalWriter && patchWriters.empty()) return 0;
 
    const pointMesh& ptMesh = pointMesh::New(proxy.baseMesh());
 
    label count = 0;
    const label total = objects.size();
    do
    {
        #undef  doLocalWriteCode
        #define doLocalWriteCode(Type)                      \
        {                                                   \
            typedef PointField<Type> FieldType;             \
                                                            \
            count += writePointFields<FieldType>            \
            (                                               \
                internalWriter,                             \
                patchWriters,                               \
                proxy, ptMesh,                              \
                objects,                                    \
                syncPar                                     \
            );                                              \
            if (count >= total) break;  /* early exit */    \
        }
 
        doLocalWriteCode(scalar);
        doLocalWriteCode(vector);
        doLocalWriteCode(sphericalTensor);
        doLocalWriteCode(symmTensor);
        doLocalWriteCode(tensor);
 
        #undef doLocalWriteCode
    }
    while (false);
 
    return count;
}
 
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //