externalPointEdgePoint.H

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-------------------------------------------------------------------------------
    Copyright (C) 2013-2016 OpenFOAM Foundation
    Copyright (C) 2019 OpenCFD Ltd.
-------------------------------------------------------------------------------
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::externalPointEdgePoint
 
Description
    Holds information regarding nearest wall point. Used in PointEdgeWave.
    (so not standard FaceCellWave)
    To be used in wall distance calculation.
 
SourceFiles
    externalPointEdgePointI.H
    externalPointEdgePoint.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef externalPointEdgePoint_H
#define externalPointEdgePoint_H
 
#include "pointField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class polyPatch;
class polyMesh;
class externalPointEdgePoint;
 
Istream& operator>>(Istream&, externalPointEdgePoint&);
Ostream& operator<<(Ostream&, const externalPointEdgePoint&);
 
 
/*---------------------------------------------------------------------------*\
                           Class externalPointEdgePoint Declaration
\*---------------------------------------------------------------------------*/
 
class externalPointEdgePoint
{
    // Private data
 
        //- Position of nearest wall center
        point origin_;
 
        //- Normal distance (squared) from point to origin
        scalar distSqr_;
 
 
    // 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.
        template<class TrackingData>
        inline bool update
        (
            const point&,
            const externalPointEdgePoint& w2,
            const scalar tol,
            TrackingData& td
        );
 
        //- Combine current with w2. Update distSqr, origin if w2 has smaller
        //  quantities and returns true.
        template<class TrackingData>
        inline bool update
        (
            const externalPointEdgePoint& w2,
            const scalar tol,
            TrackingData& td
        );
 
 
public:
 
    //- Class used to pass data into container
    class trackingData
    {
    public:
        const pointField& points_;
 
        trackingData(const pointField& points)
        :
            points_(points)
        {}
    };
 
 
 
    // Constructors
 
        //- Construct null
        inline externalPointEdgePoint();
 
        //- Construct from origin, distance
        inline externalPointEdgePoint(const point&, const scalar);
 
        //- Construct as copy
        inline externalPointEdgePoint(const externalPointEdgePoint&);
 
 
    // 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.
            template<class TrackingData>
            inline bool valid(TrackingData& td) const;
 
            //- Check for identical geometrical data. Used for cyclics checking.
            template<class TrackingData>
            inline bool sameGeometry
            (
                const externalPointEdgePoint&,
                const scalar tol,
                TrackingData& td
            ) const;
 
            //- Convert origin to relative vector to leaving point
            //  (= point coordinate)
            template<class TrackingData>
            inline void leaveDomain
            (
                const polyPatch& patch,
                const label patchPointi,
                const point& pos,
                TrackingData& td
            );
 
            //- Convert relative origin to absolute by adding entering point
            template<class TrackingData>
            inline void enterDomain
            (
                const polyPatch& patch,
                const label patchPointi,
                const point& pos,
                TrackingData& td
            );
 
            //- Apply rotation matrix to origin
            template<class TrackingData>
            inline void transform
            (
                const tensor& rotTensor,
                TrackingData& td
            );
 
            //- Influence of edge on point
            template<class TrackingData>
            inline bool updatePoint
            (
                const polyMesh& mesh,
                const label pointi,
                const label edgeI,
                const externalPointEdgePoint& edgeInfo,
                const scalar tol,
                TrackingData& td
            );
 
            //- Influence of different value on same point.
            //  Merge new and old info.
            template<class TrackingData>
            inline bool updatePoint
            (
                const polyMesh& mesh,
                const label pointi,
                const externalPointEdgePoint& newPointInfo,
                const scalar tol,
                TrackingData& td
            );
 
            //- Influence of different value on same point.
            //  No information about current position whatsoever.
            template<class TrackingData>
            inline bool updatePoint
            (
                const externalPointEdgePoint& newPointInfo,
                const scalar tol,
                TrackingData& td
            );
 
            //- Influence of point on edge.
            template<class TrackingData>
            inline bool updateEdge
            (
                const polyMesh& mesh,
                const label edgeI,
                const label pointi,
                const externalPointEdgePoint& pointInfo,
                const scalar tol,
                TrackingData& td
            );
 
            //- Equivalent to operator== with TrackingData
            template<class TrackingData>
            inline bool equal
            (
                const externalPointEdgePoint&,
                TrackingData& td
            ) const;
 
 
    // Member Operators
 
        // Needed for List IO
        inline bool operator==(const externalPointEdgePoint&) const;
        inline bool operator!=(const externalPointEdgePoint&) const;
 
 
    // IOstream Operators
 
        friend Ostream& operator<<(Ostream&, const externalPointEdgePoint&);
        friend Istream& operator>>(Istream&, externalPointEdgePoint&);
};
 
 
// * * * * * * * * * * * * * * * * * Traits  * * * * * * * * * * * * * * * * //
 
//- Contiguous data for externalPointEdgePoint
template<> struct is_contiguous<externalPointEdgePoint> : std::true_type {};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "externalPointEdgePointI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //