MapGeometricFields.H

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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.
 
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    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/>.
 
Class
    Foam::MapInternalField
 
Description
    Generic internal field mapper.  For "real" mapping, add template
    specialisations for mapping of internal fields depending on mesh
    type.
 
\*---------------------------------------------------------------------------*/
 
#ifndef MapGeometricFields_H
#define MapGeometricFields_H
 
#include "polyMesh.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
template<class Type, class MeshMapper, class GeoMesh>
class MapInternalField
{
public:
 
    MapInternalField()
    {}
 
    void operator()
    (
        DimensionedField<Type, GeoMesh>& field,
        const MeshMapper& mapper
    ) const;
};
 
 
//- Generic Geometric field mapper.
//  For "real" mapping, add template specialisations
//  for mapping of internal fields depending on mesh type.
template
<
    class Type,
    template<class> class PatchField,
    class MeshMapper,
    class GeoMesh
>
void MapGeometricFields
(
    const MeshMapper& mapper
)
{
    HashTable<const GeometricField<Type, PatchField, GeoMesh>*> fields
    (
        mapper.thisDb().objectRegistry::template
            lookupClass<GeometricField<Type, PatchField, GeoMesh>>()
    );
 
    for
    (
        typename HashTable<const GeometricField<Type, PatchField, GeoMesh>*>::
            iterator fieldIter = fields.begin();
        fieldIter != fields.end();
        ++fieldIter
    )
    {
        GeometricField<Type, PatchField, GeoMesh>& field =
            const_cast<GeometricField<Type, PatchField, GeoMesh>&>
            (*fieldIter());
 
        if (&field.mesh() == &mapper.mesh())
        {
            if (polyMesh::debug)
            {
                Info<< "Mapping " << field.typeName << ' ' << field.name()
                    << endl;
            }
 
            // Map the internal field
            MapInternalField<Type, MeshMapper, GeoMesh>()
            (
                field.ref(),
                mapper
            );
 
            // Map the patch fields
            typename GeometricField<Type, PatchField, GeoMesh>
            ::Boundary& bfield = field.boundaryFieldRef();
            forAll(bfield, patchi)
            {
                // Cannot check sizes for patch fields because of
                // empty fields in FV and because point fields get their size
                // from the patch which has already been resized
                //
 
                bfield[patchi].map
                (
                    bfield[patchi],
                    mapper.boundaryMap()[patchi]
                );
            }
 
            field.instance() = field.time().name();
        }
        else if (polyMesh::debug)
        {
            Info<< "Not mapping " << field.typeName << ' ' << field.name()
                << " since originating mesh differs from that of mapper."
                << endl;
        }
    }
}
 
 
template<class GeoField>
void AddPatchFields
(
    objectRegistry& obr,
    const label insertPatchi,
    const dictionary& patchFieldDict,
    const word& defaultPatchFieldType,
    const typename GeoField::value_type& defaultPatchValue
)
{
    HashTable<GeoField*> flds(obr.lookupClass<GeoField>());
 
    const wordList fldNames(flds.sortedToc());
 
    forAll(fldNames, i)
    {
        GeoField& fld = *flds[fldNames[i]];
 
        typename GeoField::Boundary& bfld = fld.boundaryFieldRef();
 
        if (bfld.size() != fld.mesh().boundary().size())
        {
            FatalErrorInFunction << "bfld size:" << bfld.size()
                << " mesh size:" << fld.mesh().boundary().size()
                << exit(FatalError);
        }
 
        if (patchFieldDict.found(fld.name()))
        {
            bfld.set
            (
                insertPatchi,
                GeoField::Patch::New
                (
                    fld.mesh().boundary()[insertPatchi],
                    fld(),
                    patchFieldDict.subDict(fld.name())
                )
            );
        }
        else
        {
            bfld.set
            (
                insertPatchi,
                GeoField::Patch::New
                (
                    defaultPatchFieldType,
                    fld.mesh().boundary()[insertPatchi],
                    fld()
                )
            );
            bfld[insertPatchi] == defaultPatchValue;
        }
    }
}
 
 
template<class GeoField>
void ReorderPatchFields
(
    objectRegistry& obr,
    const labelUList& newToOld
)
{
    HashTable<GeoField*> flds(obr.lookupClass<GeoField>());
    const wordList fldNames(flds.sortedToc());
    forAll(fldNames, i)
    {
        GeoField& fld = *flds[fldNames[i]];
        typename GeoField::Boundary& bfld = fld.boundaryFieldRef();
 
        bfld.shuffle(newToOld);
    }
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //