ijkMesh.H

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    Copyright (C) 2019-2021 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.
 
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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::ijkMesh
 
Description
    A simple i-j-k (row-major order) to linear addressing for a
    rectilinear mesh. Since the underlying mesh is rectilinear, some
    mesh-related sizing information can be derived directly from the
    addressing information.
 
SourceFiles
    ijkMesh.C
    ijkMeshI.H
 
\*---------------------------------------------------------------------------*/
 
#ifndef ijkMesh_H
#define ijkMesh_H
 
#include "ijkAddressing.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class hexCell;
 
/*---------------------------------------------------------------------------*\
                           Class ijkMesh Declaration
\*---------------------------------------------------------------------------*/
 
class ijkMesh
:
    public ijkAddressing
{
public:
 
    // Constructors
 
        //- Construct zero-sized
        inline ijkMesh();
 
        //- Construct with addressing
        inline explicit ijkMesh(const labelVector& ijk);
 
        //- Construct with addressing
        inline ijkMesh(const label nx, const label ny, const label nz);
 
 
    // Member Functions
 
    // Access
 
        //- The number of mesh points (nx+1)*(ny+1)*(nz+1) in the i-j-k mesh.
        inline label nPoints() const;
 
        //- The number of mesh cells (nx*ny*nz) in the i-j-k mesh
        //  This is the same as the ijkAddressing::size()
        inline label nCells() const;
 
        //- The total number of mesh faces in the i-j-k mesh
        inline label nFaces() const;
 
        //- The number of internal faces in the i-j-k mesh
        inline label nInternalFaces() const;
 
        //- The number of boundary faces in the i-j-k mesh
        inline label nBoundaryFaces() const;
 
        //- The number of boundary faces on the box face
        //  Face: 0=x-min, 1=x-max, 2=y-min, 3=y-max, 4=z-min, 5=z-max
        inline label nBoundaryFaces(const direction shapeFacei) const;
 
        //- The linear cell index for an i-j-k position - same as index()
        inline label cellLabel
        (
            const label i,
            const label j,
            const label k
        ) const;
 
        //- The linear cell index for an i-j-k position - same as index()
        inline label cellLabel(const labelVector& ijk) const;
 
        //- The linear point index for an i-j-k position.
        //  Addressable in the range (ni+1, nj+1, nk+1).
        inline label pointLabel
        (
            const label i,
            const label j,
            const label k
        ) const;
 
        //- The linear point index for an i-j-k position.
        //  Addressable in the range (ni+1, nj+1, nk+1).
        inline label pointLabel(const labelVector& ijk) const;
 
 
    // Mesh Components
 
        //- The hex cell vertices for an i-j-k position
        hexCell vertLabels(const label i, const label j, const label k) const;
 
        //- The hex cell vertices for an i-j-k position
        hexCell vertLabels(const labelVector& ijk) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "ijkMeshI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //