Scale.H

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    Copyright (C) 2017 OpenFOAM Foundation
    Copyright (C) 2020-2021 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    the Free Software Foundation, either version 3 of the License, or
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    You should have received a copy of the GNU General Public License
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Class
    Foam::Function1Types::Scale
 
Description
    Function1 which scales a given 'value' function by a scalar 'scale'
    function.
 
    This is particularly useful to ramp a time-varying value by one of the
    monotonic ramp functions.
 
    Usage for a vector:
    \verbatim
        <entryName>
        {
            type      scale;
 
            scale
            {
                type        linearRamp;
 
                start       0;
                duration    10;
            }
 
            value
            {
                type        sine;
 
                frequency   10;
                amplitude   1;
                scale       (1 0.1 0);
                level       (10 1 0);
            }
        }
    \endverbatim
 
    Where:
    \table
        Property | Description                                  | Required
        scale    | Scaling function of type Function1<scalar>   | yes
        value    | Function of type Function1<Type>             | yes
    \endtable
 
SourceFiles
    Scale.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Function1Types_Scale_H
#define Function1Types_Scale_H
 
#include "Function1.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace Function1Types
{
 
/*---------------------------------------------------------------------------*\
                           Class Scale Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class Scale
:
    public Function1<Type>
{
    // Private Data
 
        //- Scalar scaling function
        autoPtr<Function1<scalar>> scale_;
 
        //- Value function
        autoPtr<Function1<Type>> value_;
 
 
    // Private Member Functions
 
        //- Read the coefficients from the given dictionary
        void read(const dictionary& coeffs);
 
 
public:
 
    //- Runtime type information
    TypeName("scale");
 
 
    // Generated Methods
 
        //- No copy assignment
        void operator=(const Scale<Type>&) = delete;
 
 
    // Constructors
 
        //- Construct from entry name, dictionary and optional registry
        Scale
        (
            const word& entryName,
            const dictionary& dict,
            const objectRegistry* obrPtr = nullptr
        );
 
        //- Copy construct
        explicit Scale(const Scale<Type>& rhs);
 
 
    //- Destructor
    virtual ~Scale() = default;
 
 
    // Member Functions
 
        //- Return value for time t
        virtual inline Type value(const scalar t) const;
 
        //- Write in dictionary format
        virtual void writeData(Ostream& os) const;
 
        //- Write coefficient entries in dictionary format
        void writeEntries(Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Function1Types
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "ScaleI.H"
 
#ifdef NoRepository
    #include "Scale.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //