tetIndices.H

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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::tetIndices
 
Description
    Storage and named access for the indices of a tet which is part of
    the decomposition of a cell.
 
    Tets are designated by
    - cell (of course)
    - face on cell
    - three points on face (faceBasePt, facePtA, facePtB)
      When constructing from a mesh and index in the face (tetPtI):
        - faceBasePt is the mesh.tetBasePtIs() base point
        - facePtA is tetPtI away from faceBasePt
        - facePtB is next one after/before facePtA
        e.g.:
 
            +---+
            |2 /|
            | / |
            |/ 1|  <- tetPt (so 1 for first triangle, 2 for second)
            +---+
            ^
           faceBasePt
 
SourceFiles
    tetIndicesI.H
    tetIndices.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef tetIndices_H
#define tetIndices_H
 
#include "label.H"
#include "tetrahedron.H"
#include "triPointRef.H"
#include "polyMesh.H"
#include "triFace.H"
#include "face.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                         Class tetIndices Declaration
\*---------------------------------------------------------------------------*/
 
class tetIndices
{
    // Private data
 
    //- Cell that this is a decomposed tet of
    label cellI_;
 
    //- Face that holds this decomposed tet
    label faceI_;
 
    //- Base point on the face
    label faceBasePtI_;
 
    //- Point on the face such that the right-hand circulation
    //      {faceBasePtI_, facePtAI_, facePtBI_}
    //  forms a triangle that points out of the tet
    label facePtAI_;
 
    //- Point on the face such that the right-hand circulation
    //      {faceBasePtI_, facePtAI_, facePtBI_}
    //  forms a triangle that points out of the tet
    label facePtBI_;
 
    //- Point on the face, *relative to the base point*, which
    //  characterises this tet on the face.
    label tetPtI_;
 
 
public:
 
    // Constructors
 
        //- Construct null
        tetIndices();
 
        //- Construct from components
        tetIndices
        (
            label cellI,
            label faceI,
            label faceBasePtI,
            label facePtAI,
            label facePtBI,
            label tetPtI
        );
 
        //- Construct from cell, face, pt description of tet
        tetIndices
        (
            label cellI,
            label faceI,
            label tetPtI,
            const polyMesh& mesh
        );
 
 
    //- Destructor
    ~tetIndices();
 
 
    // Member Functions
 
        // Access
 
            //- Return the cell
            inline label cell() const;
 
            //- Return the face
            inline label face() const;
 
            //- Return the face base point
            inline label faceBasePt() const;
 
            //- Return face point A
            inline label facePtA() const;
 
            //- Return face point B
            inline label facePtB() const;
 
            //- Return the characterising tetPtI
            inline label tetPt() const;
 
            //- Return the geometry corresponding to this tet from the
            //  supplied mesh
            inline tetPointRef tet(const polyMesh& mesh) const;
 
            //- Return the geometry corresponding to this tet from the
            //  supplied mesh using the old positions
            inline tetPointRef oldTet(const polyMesh& mesh) const;
 
            //- Return the geometry corresponding to the tri on the
            //  mesh face for this tet from the supplied mesh. Normal of
            //  the tri points out of the cell.
            inline triPointRef faceTri(const polyMesh& mesh) const;
 
            //- Return the point indices corresponding to the tri on the mesh
            //  face for this tet from the supplied mesh. Normal of
            //  the tri points out of the cell.
            inline triFace faceTriIs(const polyMesh& mesh) const;
 
            //- Return the geometry corresponding to the tri on the
            //  mesh face for this tet from the supplied mesh using
            //  the old position
            inline triPointRef oldFaceTri(const polyMesh& mesh) const;
 
 
        // Edit
 
            //- Return non-const access to the cell
            inline label& cell();
 
            //- Return non-const access to the face
            inline label& face();
 
            //- Return non-const access to the face base point
            inline label& faceBasePt();
 
            //- Return non-const access to face point A
            inline label& facePtA();
 
            //- Return non-const access to face point B
            inline label& facePtB();
 
            //- Return non-const access to the characterising tetPtI
            inline label& tetPt();
 
 
    // Member Operators
 
        inline bool operator==(const tetIndices&) const;
        inline bool operator!=(const tetIndices&) const;
 
 
    // IOstream Operators
 
        friend Istream& operator>>(Istream&, tetIndices&);
        friend Ostream& operator<<(Ostream&, const tetIndices&);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "tetIndicesI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //