pointEdgeDist.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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    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::pointEdgeDist
 
Description
    Holds information regarding nearest wall point. Used in PointEdgeWave.
    (so not standard FaceCellWave)
    To be used in wall distance calculation.
 
SourceFiles
    pointEdgeDistI.H
    pointEdgeDist.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef pointEdgeDist_H
#define pointEdgeDist_H
 
#include "pointField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of classes
class polyPatch;
class polyMesh;
class transformer;
 
 
// Forward declaration of friend functions and operators
 
class pointEdgeDist;
 
Istream& operator>>(Istream&, pointEdgeDist&);
Ostream& operator<<(Ostream&, const pointEdgeDist&);
 
 
/*---------------------------------------------------------------------------*\
                   Class pointEdgeDist Declaration
\*---------------------------------------------------------------------------*/
 
class pointEdgeDist
{
    // Private Data
 
        //- Position of nearest wall center
        point origin_;
 
        //- Normal distance (squared) from point to origin
        scalar distSqr_;
 
 
public:
 
    //- Class used to pass data into container
    class data
    {
    public:
        const pointField& points;
        const scalar maxDistSqr;
 
        data(const pointField& p, const scalar maxDist = rootVGreat)
        :
            points(p),
            maxDistSqr(sqr(maxDist))
        {}
    };
 
 
private:
 
    // Private Member Functions
 
        //- Evaluate distance to point. Update distSqr, origin from whomever
        //  is nearer pt. Return true if w2 is closer to point,
        //  false otherwise.
        inline bool update
        (
            const point&,
            const pointEdgeDist& w2,
            const scalar tol,
            data& td
        );
 
 
public:
 
    // Constructors
 
        //- Construct null
        inline pointEdgeDist();
 
        //- Construct from origin, distance
        inline pointEdgeDist(const point&, const scalar);
 
 
    // Member Functions
 
        // Access
 
            inline const point& origin() const;
 
            inline scalar distSqr() const;
 
 
        // Needed by PointEdgeWave
 
            //- Check whether origin has been changed at all or
            //  still contains original (invalid) value.
            inline bool valid(data& td) const;
 
            //- Transform across an interface
            inline void transform
            (
                const polyPatch& patch,
                const label patchFacei,
                const transformer& transform,
                data& td
            );
 
            //- Influence of edge on point
            inline bool updatePoint
            (
                const polyMesh& mesh,
                const label pointi,
                const label edgei,
                const pointEdgeDist& edgeinfo,
                const scalar tol,
                data& td
            );
 
            //- Influence of different value on same point.
            //  Merge new and old info.
            inline bool updatePoint
            (
                const polyMesh& mesh,
                const label pointi,
                const pointEdgeDist& newPointInfo,
                const scalar tol,
                data& td
            );
 
            //- Influence of point on edge.
            inline bool updateEdge
            (
                const polyMesh& mesh,
                const label edgei,
                const label pointi,
                const pointEdgeDist& pointInfo,
                const scalar tol,
                data& td
            );
 
            //- Equivalent to operator== with data
            inline bool equal
            (
                const pointEdgeDist&,
                data& td
            ) const;
 
 
    // Member Operators
 
        // Needed for List IO
        inline bool operator==(const pointEdgeDist&) const;
        inline bool operator!=(const pointEdgeDist&) const;
 
 
    // IOstream Operators
 
        friend Ostream& operator<<(Ostream&, const pointEdgeDist&);
        friend Istream& operator>>(Istream&, pointEdgeDist&);
};
 
 
//- Data associated with pointEdgeDist type are contiguous
template<>
inline bool contiguous<pointEdgeDist>()
{
    return true;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "pointEdgeDistI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //