Shift.H

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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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    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::Function1s::Shift
 
Description
    Function1 which shifts a given 'value' function along the x-axis
 
Usage
    Example:
    \verbatim
        <name>
        {
            type    shift;
 
            start   10 [CAD];
 
            value
            {
                type    table;
                file    "constant/timeVsFlowRate.foam";
                units   ([ms] [m^3/s]);
            }
        }
    \endverbatim
 
    Where:
    \vartable
        Symbol | Description        | Data type       | Default
        start  | Start x coordinate | scalar          |
        value  | Function to shift  | Function1<Type> |
    \endvartable
 
SourceFiles
    Shift.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Shift_H
#define Shift_H
 
#include "Function1.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace Function1s
{
 
/*---------------------------------------------------------------------------*\
                            Class Shift Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class Shift
:
    public FieldFunction1<Type, Shift<Type>>
{
    // Private Data
 
        //- Argument offset
        const scalar start_;
 
        //- Value function
        const autoPtr<Function1<Type>> value_;
 
 
public:
 
    // Runtime type information
    TypeName("shift");
 
 
    // Constructors
 
        //- Construct from name and dictionary
        Shift
        (
            const word& name,
            const unitConversions& units,
            const dictionary& dict
        );
 
        //- Copy constructor
        Shift(const Shift<Type>& se);
 
 
    //- Destructor
    virtual ~Shift();
 
 
    // Member Functions
 
        //- Return value
        virtual inline Type value(const scalar x) const;
 
        //- Integrate between two values
        virtual inline Type integral(const scalar x1, const scalar x2) const;
 
        //- Write data to dictionary stream
        virtual void write(Ostream& os, const unitConversions& units) const;
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const Shift<Type>&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Function1s
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "ShiftI.H"
 
#ifdef NoRepository
    #include "Shift.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //