mapNearestMethod.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    Copyright (C) 2013-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
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::mapNearestMethod
 
Description
    Map nearest mesh-to-mesh interpolation class
 
    Not volume conservative.
    - cells outside other meshes bounding box do not get mapped
      (initial filtering)
    - all remaining cells will be mapped (with weight 1!)
    - so take care when mapping meshes with different bounding boxes!
 
SourceFiles
    mapNearestMethod.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef mapNearestMethod_H
#define mapNearestMethod_H
 
#include "meshToMeshMethod.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                      Class mapNearestMethod Declaration
\*---------------------------------------------------------------------------*/
 
class mapNearestMethod
:
    public meshToMeshMethod
{
protected:
 
    // Protected Member Functions
 
        //- Find indices of overlapping cells in src and tgt meshes - returns
        //  true if found a matching pair
        virtual bool findInitialSeeds
        (
            const labelList& srcCellIDs,
            const boolList& mapFlag,
            const label startSeedI,
            label& srcSeedI,
            label& tgtSeedI
        ) const;
 
        //- Calculate the mesh-to-mesh addressing and weights
        virtual void calculateAddressing
        (
            labelListList& srcToTgtCellAddr,
            scalarListList& srcToTgtCellWght,
            labelListList& tgtToSrcCellAddr,
            scalarListList& tgtToSrcCellWght,
            const label srcSeedI,
            const label tgtSeedI,
            const labelList& srcCellIDs,
            boolList& mapFlag,
            label& startSeedI
        );
 
        //- Find the nearest cell on mesh2 for cell1 on mesh1
        virtual void findNearestCell
        (
            const polyMesh& mesh1,
            const polyMesh& mesh2,
            const label cell1,
            label& cell2
        ) const;
 
        //- Set the next cells for the marching front algorithm
        virtual void setNextNearestCells
        (
            label& startSeedI,
            label& srcCelli,
            label& tgtCelli,
            boolList& mapFlag,
            const labelList& srcCellIDs
        ) const;
 
        //- Find a source cell mapped to target cell tgtCelli
        virtual label findMappedSrcCell
        (
            const label tgtCelli,
            const List<DynamicList<label>>& tgtToSrc
        ) const;
 
        //- No copy construct
        mapNearestMethod(const mapNearestMethod&) = delete;
 
        //- No copy assignment
        void operator=(const mapNearestMethod&) = delete;
 
 
public:
 
    //- Run-time type information
    TypeName("mapNearest");
 
    //- Construct from source and target meshes
    mapNearestMethod(const polyMesh& src, const polyMesh& tgt);
 
    //- Destructor
    virtual ~mapNearestMethod();
 
 
    // Member Functions
 
        // Evaluate
 
            //- Calculate addressing and weights and optionally offset vectors
            virtual void calculate
            (
                labelListList& srcToTgtAddr,
                scalarListList& srcToTgtWght,
                pointListList& srcToTgtVec,
                labelListList& tgtToSrcAddr,
                scalarListList& tgtToSrcWght,
                pointListList& tgtToSrcVec
            );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //