uniformInterpolate.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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    for more details.
 
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// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class GeoField>
Foam::tmp<GeoField> Foam::uniformInterpolate
(
    const HashPtrTable<GeoField, label, Hash<label> >& fields,
    const labelList& indices,
    const scalarField& weights
)
{
    const GeoField& field0 = *(*fields.begin());
 
    // Interpolate
    tmp<GeoField> tfld
    (
        new GeoField
        (
            IOobject
            (
                "uniformInterpolate(" + field0.name() + ')',
                field0.time().timeName(),
                field0.db(),
                IOobject::NO_READ,
                IOobject::AUTO_WRITE
            ),
            weights[0]*(*fields[indices[0]])
        )
    );
    GeoField& fld = tfld();
 
    for (label i = 1; i < indices.size(); ++i)
    {
        fld += weights[i]*(*fields[indices[i]]);
    }
 
    return tfld;
}
 
 
template<class GeoField>
Foam::tmp<GeoField> Foam::uniformInterpolate
(
    const IOobject& fieldIO,
    const word& fieldName,
    const wordList& times,
    const scalarField& weights,
    const objectRegistry& fieldsCache
)
{
    // Look up the first field
    const objectRegistry& time0Fields = fieldsCache.lookupObject
    <
        const objectRegistry
    >
    (
        times[0]
    );
    const GeoField& field0 = time0Fields.lookupObject
    <
        const GeoField
    >
    (
        fieldName
    );
 
 
    // Interpolate
    tmp<GeoField> tfld(new GeoField(fieldIO, weights[0]*field0));
    GeoField& fld = tfld();
 
    for (label i = 1; i < times.size(); ++i)
    {
        const objectRegistry& timeIFields = fieldsCache.lookupObject
        <
            const objectRegistry
        >
        (
            times[i]
        );
        const GeoField& fieldI = timeIFields.lookupObject
        <
            const GeoField
        >
        (
            fieldName
        );
 
        fld += weights[i]*fieldI;
    }
 
    return tfld;
}
 
 
template<class GeoField>
Foam::tmp<GeoField> Foam::uniformInterpolate
(
    const IOobject& fieldIO,
    const word& fieldName,
    const wordList& times,
    const scalarField& weights,
    const word& registryName
)
{
    return uniformInterpolate<GeoField>
    (
        fieldIO,
        fieldName,
        times,
        weights,
        fieldIO.db().subRegistry(registryName, true)
    );
}
 
 
// ************************************************************************* //