FaceCellWave.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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::FaceCellWave
 
Description
    Wave propagation of information through grid. Every iteration
    information goes through one layer of cells. Templated on information
    that is transferred.
 
    Handles parallel and cyclics and non-parallel cyclics.
 
    Note: whether to propagate depends on the return value of Type::update
    which returns true (i.e. propagate) if the value changes by more than a
    certain tolerance.
    This tolerance can be very strict for normal face-cell and parallel
    cyclics (we use a value of 0.01 just to limit propagation of small changes)
    but for non-parallel cyclics this tolerance can be critical and if chosen
    too small can lead to non-convergence.
 
SourceFiles
    FaceCellWave.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef FaceCellWave_H
#define FaceCellWave_H
 
#include "boolList.H"
#include "labelList.H"
#include "primitiveFieldsFwd.H"
#include "labelPair.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of classes
class polyMesh;
class polyPatch;
 
/*---------------------------------------------------------------------------*\
                        Class FaceCellWaveName Declaration
\*---------------------------------------------------------------------------*/
 
TemplateName(FaceCellWave);
 
 
/*---------------------------------------------------------------------------*\
                           Class FaceCellWave Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type, class TrackingData = int>
class FaceCellWave
:
    public FaceCellWaveName
{
    // Private data
 
        //- Reference to mesh
        const polyMesh& mesh_;
 
        //- Optional boundary faces that information should travel through
        const List<labelPair> explicitConnections_;
 
        //- Information for all faces
        UList<Type>& allFaceInfo_;
 
        //- Information for all cells
        UList<Type>& allCellInfo_;
 
        //- Additional data to be passed into container
        TrackingData& td_;
 
        //- Has face changed
        boolList changedFace_;
 
        //- List of changed faces
        labelList changedFaces_;
 
        //- Number of changed faces
        label nChangedFaces_;
 
        // Cells that have changed
        boolList changedCell_;
        labelList changedCells_;
        label nChangedCells_;
 
        //- Contains cyclics
        const bool hasCyclicPatches_;
 
        //- Contains cyclicAMI
        const bool hasCyclicAMIPatches_;
 
        //- Number of evaluations
        label nEvals_;
 
        //- Number of unvisited cells/faces
        label nUnvisitedCells_;
        label nUnvisitedFaces_;
 
 
    // Private Member Functions
 
        //- Disallow default bitwise copy construct
        FaceCellWave(const FaceCellWave&);
 
        //- Disallow default bitwise assignment
        void operator=(const FaceCellWave&);
 
 
        //- Updates cellInfo with information from neighbour. Updates all
        //  statistics.
        bool updateCell
        (
            const label cellI,
            const label neighbourFaceI,
            const Type& neighbourInfo,
            const scalar tol,
            Type& cellInfo
        );
 
        //- Updates faceInfo with information from neighbour. Updates all
        //  statistics.
        bool updateFace
        (
            const label faceI,
            const label neighbourCellI,
            const Type& neighbourInfo,
            const scalar tol,
            Type& faceInfo
        );
 
        //- Updates faceInfo with information from same face. Updates all
        //  statistics.
        bool updateFace
        (
            const label faceI,
            const Type& neighbourInfo,
            const scalar tol,
            Type& faceInfo
        );
 
 
        // Parallel, cyclic
 
            //- Debugging: check info on both sides of cyclic
            void checkCyclic(const polyPatch& pPatch) const;
 
            //- Has cyclic patch?
            template<class PatchType>
            bool hasPatch() const;
 
            //- Merge received patch data into global data
            void mergeFaceInfo
            (
                const polyPatch& patch,
                const label nFaces,
                const labelList&,
                const List<Type>&
            );
 
            //- Extract info for single patch only
            label getChangedPatchFaces
            (
                const polyPatch& patch,
                const label startFaceI,
                const label nFaces,
                labelList& changedPatchFaces,
                List<Type>& changedPatchFacesInfo
            ) const;
 
            //- Handle leaving domain. Implementation referred to Type
            void leaveDomain
            (
                const polyPatch& patch,
                const label nFaces,
                const labelList& faceLabels,
                List<Type>& faceInfo
            ) const;
 
            //- Handle leaving domain. Implementation referred to Type
            void enterDomain
            (
                const polyPatch& patch,
                const label nFaces,
                const labelList& faceLabels,
                List<Type>& faceInfo
            ) const;
 
            //- Offset face labels by constant value
            static void offset
            (
                const polyPatch& patch,
                const label off,
                const label nFaces,
                labelList& faces
            );
 
            //- Apply transformation to Type
            void transform
            (
                const tensorField& rotTensor,
                const label nFaces,
                List<Type>& faceInfo
            );
 
            //- Merge data from across processor boundaries
            void handleProcPatches();
 
            //- Merge data from across cyclics
            void handleCyclicPatches();
 
            //- Merge data from across AMI cyclics
            void handleAMICyclicPatches();
 
            //- Merge data across explicitly provided local connections (usually
            //  baffles)
            void handleExplicitConnections();
 
 
      // Private static data
 
            static const scalar geomTol_;
            static scalar propagationTol_;
 
            //- Used as default trackdata value to satisfy default template
            //  argument.
            static int dummyTrackData_;
 
 
public:
 
    // Static Functions
 
        //- Access to tolerance
        static scalar propagationTol()
        {
            return propagationTol_;
        }
 
        //- Change tolerance
        static void setPropagationTol(const scalar tol)
        {
            propagationTol_ = tol;
        }
 
 
    // Constructors
 
        // Construct from mesh. Use setFaceInfo and iterate() to do actual
        // calculation.
        FaceCellWave
        (
            const polyMesh&,
            UList<Type>& allFaceInfo,
            UList<Type>& allCellInfo,
            TrackingData& td = dummyTrackData_
        );
 
        //- Construct from mesh and list of changed faces with the Type
        //  for these faces. Iterates until nothing changes or maxIter reached.
        //  (maxIter can be 0)
        FaceCellWave
        (
            const polyMesh&,
            const labelList& initialChangedFaces,
            const List<Type>& changedFacesInfo,
            UList<Type>& allFaceInfo,
            UList<Type>& allCellInfo,
            const label maxIter,
            TrackingData& td = dummyTrackData_
        );
 
        //- Construct from mesh and explicitly connected boundary faces
        //  and list of changed faces with the Type
        //  for these faces. Iterates until nothing changes or maxIter reached.
        //  (maxIter can be 0)
        FaceCellWave
        (
            const polyMesh&,
            const List<labelPair>& explicitConnections,
            const bool handleCyclicAMI,
            const labelList& initialChangedFaces,
            const List<Type>& changedFacesInfo,
            UList<Type>& allFaceInfo,
            UList<Type>& allCellInfo,
            const label maxIter,
            TrackingData& td = dummyTrackData_
        );
 
 
    // Member Functions
 
        // Access
 
            //- Access allFaceInfo
            UList<Type>& allFaceInfo()
            {
                return allFaceInfo_;
            }
 
            //- Access allCellInfo
            UList<Type>& allCellInfo()
            {
                return allCellInfo_;
            }
 
            //- Additional data to be passed into container
            const TrackingData& data() const
            {
                return td_;
            }
 
            //- Access mesh
            const polyMesh& mesh() const
            {
                return mesh_;
            }
 
            //- Get number of unvisited cells, i.e. cells that were not (yet)
            //  reached from walking across mesh. This can happen from
            //  - not enough iterations done
            //  - a disconnected mesh
            //  - a mesh without walls in it
            label getUnsetCells() const;
 
            //- Get number of unvisited faces
            label getUnsetFaces() const;
 
 
        // Edit
 
            //- Set initial changed faces
            void setFaceInfo
            (
                const labelList& changedFaces,
                const List<Type>& changedFacesInfo
            );
 
            //- Propagate from face to cell. Returns total number of cells
            //  (over all processors) changed.
            label faceToCell();
 
            //- Propagate from cell to face. Returns total number of faces
            //  (over all processors) changed. (Faces on processorpatches are
            //  counted double)
            label cellToFace();
 
            //- Iterate until no changes or maxIter reached.  Returns actual
            //  number of iterations.
            label iterate(const label maxIter);
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
#   include "FaceCellWave.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //