wallPoint.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2019-2020 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.
 
    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::wallPoint
 
Description
    Holds information regarding nearest wall point. Used in wall distance
    calculation.
 
SourceFiles
    wallPointI.H
    wallPoint.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef wallPoint_H
#define wallPoint_H
 
#include "point.H"
#include "label.H"
#include "scalar.H"
#include "tensor.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class polyPatch;
class polyMesh;
class wallPoint;
 
Ostream& operator<<(Ostream&, const wallPoint&);
Istream& operator>>(Istream&, wallPoint&);
 
 
/*---------------------------------------------------------------------------*\
                          Class wallPoint Declaration
\*---------------------------------------------------------------------------*/
 
class wallPoint
{
    // Private Data
 
        //- Position of nearest wall center
        point origin_;
 
        //- Normal distance (squared) from cellcenter to origin
        scalar distSqr_;
 
 
    // Private Member Functions
 
        // Update this with w2 if distance less
        template<class TrackingData>
        inline bool update
        (
            const wallPoint& w2,
            const scalar dist2,
            const scalar tol,
            TrackingData& td
        );
 
        //- 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 wallPoint& w2,
            const scalar tol,
            TrackingData& td
        );
 
 
public:
 
    // Constructors
 
        //- Default construct
        inline wallPoint();
 
        //- Construct from origin, distance-squared
        inline wallPoint(const point& origin, const scalar distSqr);
 
 
    // Member Functions
 
        // Access
 
            const point& origin() const
            {
                return origin_;
            }
            point& origin()
            {
                return origin_;
            }
 
            scalar distSqr() const
            {
                return distSqr_;
            }
            scalar& distSqr()
            {
                return distSqr_;
            }
 
 
        // Needed by FaceCellWave
 
            //- Changed or contains original (invalid) value
            template<class TrackingData>
            inline bool valid(TrackingData& td) const;
 
            //- Check for identical geometrical data (eg, cyclics checking)
            template<class TrackingData>
            inline bool sameGeometry
            (
                const polyMesh&,
                const wallPoint&,
                const scalar,
                TrackingData& td
            ) const;
 
            //- Convert any absolute coordinates into relative to (patch)face
            //- centre
            template<class TrackingData>
            inline void leaveDomain
            (
                const polyMesh&,
                const polyPatch&,
                const label patchFacei,
                const point& faceCentre,
                TrackingData& td
            );
 
            //- Reverse of leaveDomain
            template<class TrackingData>
            inline void enterDomain
            (
                const polyMesh&,
                const polyPatch&,
                const label patchFacei,
                const point& faceCentre,
                TrackingData& td
            );
 
            //- Apply rotation matrix to any coordinates
            template<class TrackingData>
            inline void transform
            (
                const polyMesh&,
                const tensor&,
                TrackingData& td
            );
 
            //- Influence of neighbouring face.
            template<class TrackingData>
            inline bool updateCell
            (
                const polyMesh&,
                const label thisCelli,
                const label neighbourFacei,
                const wallPoint& neighbourInfo,
                const scalar tol,
                TrackingData& td
            );
 
            //- Influence of neighbouring cell.
            template<class TrackingData>
            inline bool updateFace
            (
                const polyMesh&,
                const label thisFacei,
                const label neighbourCelli,
                const wallPoint& neighbourInfo,
                const scalar tol,
                TrackingData& td
            );
 
            //- Influence of different value on same face.
            template<class TrackingData>
            inline bool updateFace
            (
                const polyMesh&,
                const label thisFacei,
                const wallPoint& neighbourInfo,
                const scalar tol,
                TrackingData& td
            );
 
            //- Interpolate different values
            template<class TrackingData>
            wallPoint
            (
                const polyMesh&,
                const scalar weight,
                const label face0,
                const wallPoint& info0,
                const label face1,
                const wallPoint& info1,
                const scalar tol,
                TrackingData& td
            );
 
            //- Test for equality, with TrackingData
            template<class TrackingData>
            inline bool equal(const wallPoint&, TrackingData& td) const;
 
            //- Interpolate between two values (lerp). Returns true if
            //- causes changes. Not sure if needs to be specialised between
            //- face and cell and what index is needed...
            template<class TrackingData>
            inline bool interpolate
            (
                const polyMesh&,
                const point& pt,
                const label i0,
                const wallPoint& f0,
                const label i1,
                const wallPoint& f1,
                const scalar weight,
                const scalar tol,
                TrackingData& td
            );
 
 
    // Member Operators
 
        //- Test for equality
        inline bool operator==(const wallPoint&) const;
 
        //- Test for inequality
        inline bool operator!=(const wallPoint&) const;
 
 
    // IOstream Operators
 
        friend Ostream& operator<<(Ostream&, const wallPoint&);
        friend Istream& operator>>(Istream&, wallPoint&);
};
 
 
// * * * * * * * * * * * * * * * * * Traits  * * * * * * * * * * * * * * * * //
 
//- Contiguous data for wallPoint
template<> struct is_contiguous<wallPoint> : std::true_type {};
 
//- Contiguous scalar data for wallPoint
template<> struct is_contiguous_scalar<wallPoint> : std::true_type {};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "wallPointI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //