MapLagrangianFields.H

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/*---------------------------------------------------------------------------*\
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License
    This file is part of OpenFOAM.

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InNamespace
    Foam

Description
    Gets the indices of (source)particles that have been appended to the
    target cloud and maps the lagrangian fields accordingly.

\*---------------------------------------------------------------------------*/

#ifndef MapLagrangianFields_H
#define MapLagrangianFields_H

#include <OpenFOAM/cloud.H>
#include <OpenFOAM/GeometricField.H>
#include <sampling/meshToMesh.H>
#include <OpenFOAM/IOobjectList.H>

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

//- Gets the indices of (source)particles that have been appended to the
//  target cloud and maps the lagrangian fields accordingly.
template<class Type>
void MapLagrangianFields
(
    const string& cloudName,
    const IOobjectList& objects,
    const meshToMesh& meshToMeshInterp,
    const labelList& addParticles
)
{
    const fvMesh& meshTarget = meshToMeshInterp.toMesh();

    IOobjectList fields = objects.lookupClass(IOField<Type>::typeName);

    forAllIter(IOobjectList, fields, fieldIter)
    {
        Info<< "    mapping lagrangian field " << fieldIter()->name() << endl;

        // Read field (does not need mesh)
        IOField<Type> fieldSource(*fieldIter());

        // Map
        IOField<Type> fieldTarget
        (
            IOobject
            (
                fieldIter()->name(),
                meshTarget.time().timeName(),
                cloud::prefix/cloudName,
                meshTarget,
                IOobject::NO_READ,
                IOobject::NO_WRITE,
                false
            ),
            addParticles.size()
        );
        forAll(addParticles, i)
        {
            fieldTarget[i] = fieldSource[addParticles[i]];
        }

        // Write field
        fieldTarget.write();
    }
}


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

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