pointFieldDecomposer.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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     \\/     M anipulation  |
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2021-2025 OpenCFD Ltd.
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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.
 
    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/>.
 
Class
    Foam::pointFieldDecomposer
 
Description
    Point field decomposer.
 
SourceFiles
    pointFieldDecomposer.cxx
    pointFieldDecomposer.txx
    pointFieldDecomposerCache.cxx
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_pointFieldDecomposer_H
#define Foam_pointFieldDecomposer_H
 
#include "pointMesh.H"
#include "pointFields.H"
#include "pointPatchFieldMapper.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class IOobjectList;
 
/*---------------------------------------------------------------------------*\
                    Class pointFieldDecomposer Declaration
\*---------------------------------------------------------------------------*/
 
class pointFieldDecomposer
{
public:
 
    // Public Classes
 
        //- Internal caching for field reading
        class fieldsCache;
 
        //- Point patch field decomposer class
        class patchFieldDecomposer
        :
            public pointPatchFieldMapper
        {
            // Private Data
 
                labelList directAddressing_;
 
                //- Does map contain any unmapped values
                bool hasUnmapped_;
 
        public:
 
            // Constructors
 
                //- Construct given addressing
                patchFieldDecomposer
                (
                    const pointPatch& completeMeshPatch,
                    const pointPatch& procMeshPatch,
                    const labelUList& directAddr
                );
 
 
            // Member Functions
 
                label size() const noexcept
                {
                    return directAddressing_.size();
                }
 
                bool direct() const noexcept
                {
                    return true;
                }
 
                bool hasUnmapped() const noexcept
                {
                    return hasUnmapped_;
                }
 
                const labelUList& directAddressing() const noexcept
                {
                    return directAddressing_;
                }
        };
 
 
private:
 
    // Private Data
 
        //- Reference to processor mesh
        const pointMesh& procMesh_;
 
        //- Reference to point addressing
        const labelUList& pointAddressing_;
 
        //- Reference to boundary addressing
        const labelUList& boundaryAddressing_;
 
        //- List of patch field decomposers
        PtrList<patchFieldDecomposer> patchFieldDecomposerPtrs_;
 
 
public:
 
    //- No copy construct
    pointFieldDecomposer(const pointFieldDecomposer&) = delete;
 
    //- No copy assignment
    void operator=(const pointFieldDecomposer&) = delete;
 
 
    // Constructors
 
        //- Construct without mappers, added later with reset()
        pointFieldDecomposer
        (
            Foam::zero,
            const pointMesh& procMesh,
            const labelUList& pointAddressing,
            const labelUList& boundaryAddressing
        );
 
        //- Construct from components
        pointFieldDecomposer
        (
            const pointMesh& completeMesh,
            const pointMesh& procMesh,
            const labelUList& pointAddressing,
            const labelUList& boundaryAddressing
        );
 
 
    //- Destructor
    ~pointFieldDecomposer() = default;
 
 
    // Member Functions
 
        //- True if no mappers have been allocated
        bool empty() const noexcept;
 
        //- Remove all mappers
        void clear();
 
        //- Reset mappers using information from the complete mesh
        void reset(const pointMesh& completeMesh);
 
 
    // Mapping
 
        //- Decompose point field
        template<class Type>
        tmp<GeometricField<Type, pointPatchField, pointMesh>>
        decomposeField
        (
            const GeometricField<Type, pointPatchField, pointMesh>&
        ) const;
 
        //- Decompose list of fields
        template<class GeoField>
        void decomposeFields(const UPtrList<GeoField>& fields) const;
};
 
 
/*---------------------------------------------------------------------------*\
              Class pointFieldDecomposer::fieldsCache Declaration
\*---------------------------------------------------------------------------*/
 
class pointFieldDecomposer::fieldsCache
{
    class privateCache;
    std::unique_ptr<privateCache> cache_;
 
    //- No copy construct
    fieldsCache(const fieldsCache&) = delete;
 
    //- No copy assignment
    void operator=(const fieldsCache&) = delete;
 
 
public:
 
    // Constructors
 
        //- Default construct
        fieldsCache();
 
 
    //- Destructor
    ~fieldsCache();
 
 
    // Member Functions
 
        //- No fields
        bool empty() const noexcept;
 
        //- Total number of fields
        label size() const noexcept;
 
        //- Clear out
        void clear();
 
 
        //- Read all fields given mesh and objects
        void readAllFields
        (
            const pointMesh& mesh,
            const IOobjectList& objects
        );
 
        //- Decompose and write all fields
        void decomposeAllFields
        (
            const pointFieldDecomposer& decomposer,
            bool report = false
        ) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "pointFieldDecomposer.txx"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //