quadratic.H

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2007-2019 PCOpt/NTUA
    Copyright (C) 2013-2019 FOSS GP
    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::quadratic
 
Description
    Fits a quadratic polynomial of the merit function as a function of step
    and finds the "optimal" value
 
SourceFiles
    quadratic.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef quadratic_H
#define quadratic_H
 
#include "stepUpdate.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                          Class quadratic Declaration
\*---------------------------------------------------------------------------*/
 
class quadratic
:
    public stepUpdate
{
protected:
 
    // Protected data
 
        scalar minRatio_;
        scalar firstMeritValue_;
        scalar secondMeritValue_;
        scalar meritDerivative_;
 
 
private:
 
    // Private Member Functions
 
        //- No copy construct
        quadratic(const quadratic&) = delete;
 
        //- No copy assignment
        void operator=(const quadratic&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("quadratic");
 
 
    // Constructors
 
        //- Construct from components
        quadratic(const dictionary& dict);
 
 
    //- Destructor
    virtual ~quadratic() = default;
 
 
    // Member Functions
 
       //- Update step in given direction
       virtual void updateStep(scalar& step);
 
       //- Set objective derivative
       virtual void setDeriv(const scalar deriv);
 
       //- Set new merit value
       virtual void setNewMeritValue(const scalar value);
 
       //- Set old merit value
       virtual void setOldMeritValue(const scalar value);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //