arcEdge.H

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    Copyright (C) 2017 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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    You should have received a copy of the GNU General Public License
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Class
    Foam::blockEdges::arcEdge
 
Description
    Defines the arcEdge of a circle in terms of 3 points on its circumference
 
SourceFiles
    arcEdge.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef blockEdges_arcEdge_H
#define blockEdges_arcEdge_H
 
#include "blockEdge.H"
#include "cylindricalCS.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace blockEdges
{
 
/*---------------------------------------------------------------------------*\
                           Class arcEdge Declaration
\*---------------------------------------------------------------------------*/
 
class arcEdge
:
    public blockEdge
{
    // Private data
 
        // Begin, mid, end points
        point p1_, p2_, p3_;
 
        //- The arc angle (in degrees)
        scalar angle_;
 
        //- The arc radius
        scalar radius_;
 
        //- The local cylindrical coordinate system
        coordSystem::cylindrical cs_;
 
 
    // Private Member Functions
 
        //- Calculate the angle, radius and axis
        //  \return the cylindrical coordinate system
        coordSystem::cylindrical calcAngle();
 
        //- No copy construct
        arcEdge(const arcEdge&) = delete;
 
        //- No copy assignment
        void operator=(const arcEdge&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("arc");
 
 
    // Constructors
 
        //- Construct from components
        arcEdge
        (
            const pointField& points,
            const label start,
            const label end,
            const point& pMid
        );
 
        //- Construct from Istream setting pointsList
        arcEdge
        (
            const dictionary& dict,
            const label index,
            const searchableSurfaces& geometry,
            const pointField& points,
            Istream&
        );
 
 
    //- Destructor
    virtual ~arcEdge() = default;
 
 
    // Member Functions
 
        //- The point corresponding to the curve parameter [0-1]
        point position(const scalar lambda) const;
 
        //- The length of the curve
        scalar length() const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace blockEdges
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //