Merge branch 'master' of ssh://git.code.sf.net/p/foam-extend/foam-extend-3.2

[foam-extend-3.2.git] / src / foam / meshes / polyMesh / polyMesh.H

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     3.2
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
    This file is part of foam-extend.

    foam-extend 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.

    foam-extend 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 foam-extend.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::polyMesh

Description
    Mesh consisting of general polyhedral cells.

SourceFiles
    polyMesh.C
    polyMeshInitMesh.C
    polyMeshClear.C
    polyMeshFromShapeMesh.C
    polyMeshIO.C
    polyMeshUpdate.C

\*---------------------------------------------------------------------------*/

#ifndef polyMesh_H
#define polyMesh_H

#include "objectRegistry.H"
#include "primitiveMesh.H"
#include "pointField.H"
#include "faceList.H"
#include "cellList.H"
#include "cellShapeList.H"
#include "pointIOField.H"
#include "faceIOList.H"
#include "labelIOList.H"
#include "polyBoundaryMesh.H"
#include "boundBox.H"
#include "pointZoneMesh.H"
#include "faceZoneMesh.H"
#include "cellZoneMesh.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

// Forward declaration of classes
class globalMeshData;
class mapPolyMesh;

/*---------------------------------------------------------------------------*\
                          Class polyMesh Declaration
\*---------------------------------------------------------------------------*/

class polyMesh
:
    public objectRegistry,
    public primitiveMesh
{

public:

    // Public data types

        //- Enumeration defining the state of the mesh after a read update.
        //  Used for post-processing applications, where the mesh
        //  needs to update based on the files written in time
        //  directores
        enum readUpdateState
        {
            UNCHANGED,
            POINTS_MOVED,
            TOPO_CHANGE,
            TOPO_PATCH_CHANGE
        };


private:

    // Permanent data

        // Primitive mesh data

            //- All points
            pointIOField allPoints_;

            //- Active points
            pointField::subField points_;

            //- All faces
            faceIOList allFaces_;

            //- Active faces
            faceList::subList faces_;

            //- Face owner
            labelIOList owner_;

            //- Face neighbour
            labelIOList neighbour_;

            //- Have the primitives been cleared
            bool clearedPrimitives_;


            //- Boundary mesh
            mutable polyBoundaryMesh boundary_;

            //- Mesh bounding-box.
            //  Created from points on construction, updated with mesh motion
            boundBox bounds_;

            //- Vector of non-constrained directions in mesh
            //  Defined according to the presence of empty and wedge patches
            mutable Vector<label> geometricD_;

            //- Vector of valid directions in mesh
            //  Defined according to the presence of empty patches
            mutable Vector<label> solutionD_;


        // Zoning information

            //- Point zones
            pointZoneMesh pointZones_;

            //- Face zones
            faceZoneMesh faceZones_;

            //- Cell zones
            cellZoneMesh cellZones_;


        //- Parallel info
        mutable globalMeshData* globalMeshDataPtr_;


        // Mesh motion related data

            //- Is the mesh moving
            bool moving_;

            //- Is the mesh changing (moving and/or topology changing)
            bool changing_;

            //- Current time index for mesh motion
            mutable label curMotionTimeIndex_;

            //- Old points (for the last mesh motion)
            mutable pointField* oldAllPointsPtr_;

            //- Old points
            mutable pointField::subField* oldPointsPtr_;


    // Private member functions

        //- Disallow construct as copy
        polyMesh(const polyMesh&);

        //- Disallow default bitwise assignment
        void operator=(const polyMesh&);

        //- Initialise the polyMesh from the primitive data
        void initMesh();

        //- Initialise the polyMesh from the given set of cells
        void initMesh(cellList& c);

        //- Calculate the valid directions in the mesh from the boundaries
        void calcDirections() const;

        //- Calculate the cell shapes from the primitive
        //  polyhedral information
        void calcCellShapes() const;


        // Helper functions for constructor from cell shapes

            labelListList cellShapePointCells(const cellShapeList&) const;

            labelList facePatchFaceCells
            (
                const faceList& patchFaces,
                const labelListList& pointCells,
                const faceListList& cellsFaceShapes,
                const label patchID
            ) const;

            void setTopology
            (
                const cellShapeList& cellsAsShapes,
                const faceListList& boundaryFaces,
                const wordList& boundaryPatchNames,
                labelList& patchSizes,
                labelList& patchStarts,
                label& defaultPatchStart,
                label& nFaces,
                cellList& cells
            );


public:

    // Public typedefs

        typedef polyMesh Mesh;
        typedef polyBoundaryMesh BoundaryMesh;


    //- Runtime type information
    TypeName("polyMesh");

    //- Return the default region name
    static word defaultRegion;

    //- Return the mesh sub-directory name (usually "polyMesh")
    static word meshSubDir;


    // Constructors

        //- Construct from IOobject
        explicit polyMesh(const IOobject& io);

        //- Construct from components without boundary.
        //  Boundary is added using addPatches() member function
        polyMesh
        (
            const IOobject& io,
            const Xfer<pointField>& points,
            const Xfer<faceList>& faces,
            const Xfer<labelList>& owner,
            const Xfer<labelList>& neighbour,
            const bool syncPar = true
        );

        //- Construct without boundary with cells rather than owner/neighbour.
        //  Boundary is added using addPatches() member function
        polyMesh
        (
            const IOobject& io,
            const Xfer<pointField>& points,
            const Xfer<faceList>& faces,
            const Xfer<cellList>& cells,
            const bool syncPar = true
        );

        //- Construct from cell shapes
        polyMesh
        (
            const IOobject& io,
            const Xfer<pointField>& points,
            const cellShapeList& shapes,
            const faceListList& boundaryFaces,
            const wordList& boundaryPatchNames,
            const wordList& boundaryPatchTypes,
            const word& defaultBoundaryPatchName,
            const word& defaultBoundaryPatchType,
            const wordList& boundaryPatchPhysicalTypes,
            const bool syncPar = true
        );

        //- Construct from cell shapes with patch information in dictionary
        //  format.
        polyMesh
        (
            const IOobject& io,
            const Xfer<pointField>& points,
            const cellShapeList& shapes,
            const faceListList& boundaryFaces,
            const wordList& boundaryPatchNames,
            const PtrList<dictionary>& boundaryDicts,
            const word& defaultBoundaryPatchName,
            const word& defaultBoundaryPatchType,
            const bool syncPar = true
        );


    // Destructor

        virtual ~polyMesh();


    // Member Functions

        // Database

            //- Override the objectRegistry dbDir for a single-region case
            virtual const fileName& dbDir() const;

            //- Return the local mesh directory (dbDir()/meshSubDir)
            fileName meshDir() const;

            //- Return the current instance directory for points
            //  Used in the consruction of gemometric mesh data dependent
            //  on points
            const fileName& pointsInstance() const;

            //- Return the current instance directory for faces
            const fileName& facesInstance() const;

            //- Set the instance for mesh files
            void setInstance(const fileName&);


            //- Set motion write option
            void setMotionWriteOpt(IOobject::writeOption);

            //- Set topological write option
            void setTopoWriteOpt(IOobject::writeOption);


        // Access

            //- Return all points, including inactive ones
            const pointField& allPoints() const;

            //- Return all faces, including inactive ones
            const faceList& allFaces() const;

            //- Return old mesh motion points, including inactive ones
            const pointField& oldAllPoints() const;


        // Active mesh data

            //- Return raw points
            virtual const pointField& points() const;

            //- Return raw faces
            virtual const faceList& faces() const;

            //- Return face owner
            virtual const labelList& faceOwner() const;

            //- Return face neighbour
            virtual const labelList& faceNeighbour() const;

            //- Return old points for mesh motion
            virtual const pointField& oldPoints() const;

            //- Return boundary mesh
            const polyBoundaryMesh& boundaryMesh() const
            {
                return boundary_;
            }

            //- Return mesh bounding box
            const boundBox& bounds() const
            {
                return bounds_;
            }

            //- Return the vector of geometric directions in mesh.
            //  Defined according to the presence of empty and wedge patches.
            //  1 indicates unconstrained direction and -1 a constrained
            //  direction.
            const Vector<label>& geometricD() const;

            //- Return the number of valid geometric dimensions in the mesh
            label nGeometricD() const;

            //- Return the vector of solved-for directions in mesh.
            //  Differs from geometricD in that it includes for wedge cases
            //  the circumferential direction in case of swirl.
            //  1 indicates valid direction and -1 an invalid direction.
            const Vector<label>& solutionD() const;

            //- Return the number of valid solved-for dimensions in the mesh
            label nSolutionD() const;

            //- Return point zone mesh
            const pointZoneMesh& pointZones() const
            {
                return pointZones_;
            }

            //- Return face zone mesh
            const faceZoneMesh& faceZones() const
            {
                return faceZones_;
            }

            //- Return cell zone mesh
            const cellZoneMesh& cellZones() const
            {
                return cellZones_;
            }

            //- Return parallel info
            const globalMeshData& globalData() const;

            //- Return the object registry
            const objectRegistry& thisDb() const
            {
                return *this;
            }


        // Mesh motion

            //- Is mesh moving
            bool moving() const
            {
                return moving_;
            }

            //- Return current motion time index
            label curMotionTimeIndex() const
            {
                return moving_;
            }

            //- Set the mesh to be moving
            bool moving(const bool m)
            {
                bool m0 = moving_;
                moving_ = m;
                changing_ = changing_ || moving_;
                return m0;
            }

            //- Is mesh changing (topology changing and/or moving)
            bool changing() const
            {
                return changing_;
            }

            //- Set the mesh to be changing
            bool changing(const bool c)
            {
                bool c0 = changing_;
                changing_ = c;
                return c0;
            }

            //- Move points, returns volumes swept by faces in motion
            virtual tmp<scalarField> movePoints(const pointField&);

            //- Reset motion
            void resetMotion() const;

            //- Set old points without executing motion
            void setOldPoints(const pointField& setPoints);


        // Topological change

            //- Return non-const access to the pointZones
            pointZoneMesh& pointZones()
            {
                return pointZones_;
            }

            //- Return non-const access to the faceZones
            faceZoneMesh& faceZones()
            {
                return faceZones_;
            }

            //- Return non-const access to the cellZones
            cellZoneMesh& cellZones()
            {
                return cellZones_;
            }

            //- Add boundary patches
            void addPatches
            (
                const List<polyPatch*>&,
                const bool validBoundary = true
            );

            //- Add mesh zones
            void addZones
            (
                const List<pointZone*>& pz,
                const List<faceZone*>& fz,
                const List<cellZone*>& cz
            );

            //- Update the mesh based on the mesh files saved in
            //  time directories
            virtual readUpdateState readUpdate();

            //- Update the mesh corresponding to given map
            virtual void updateMesh(const mapPolyMesh& mpm);

            //- Sync mesh update for topo change on other processors
            //  Locally, there is no topological change
            virtual void syncUpdateMesh();

            //- Remove boundary patches
            void removeBoundary();

            //- Remove point, face and cell zones
            void removeZones();

            //- Reset mesh primitive data. Assumes all patch info correct
            //  (so does e.g. parallel communication). If not use
            //  validBoundary=false
            //  (still assumes patchStarts[0] = nInternalFaces and last
            //  patch ends at nActiveFaces) and change patches with addPatches.
            void resetPrimitives
            (
                const Xfer<pointField>& points,
                const Xfer<faceList>& faces,
                const Xfer<labelList>& owner,
                const Xfer<labelList>& neighbour,
                const labelList& patchSizes,
                const labelList& patchStarts,
                const bool validBoundary = true
            );


        //  Storage management

            //- Clear geometry
            void clearGeom();

            //- Clear addressing
            void clearAddressing();

            //- Clear all geometry and addressing unnecessary for CFD
            void clearOut();

            //- Clear primitive data (points, faces and cells)
            void clearPrimitives();

            //- Remove all files from mesh instance
            void removeFiles(const fileName& instanceDir) const;

            //- Remove all files from mesh instance()
            void removeFiles() const;


        // Helper functions

            //- Find cell enclosing this location (-1 if not in mesh)
            label findCell(const point&) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //