DistanceFunction_DimensionedFieldFunction.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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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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::DimensionedFieldFunctions::DistanceFunction
 
Description
    Distance function internal and patch field initialisation function
 
    The field is initialised by evaluating the specified
    Foam::Function1 of distance in the given spatial direction.
 
Usage
    To set a field with a linear ramp from 0 to 1 over the distance 1 starting
    at 0 in the x-direction:
    \verbatim
    internalField
    {
        type        distanceFunction;
 
        direction   (1 0 0);
 
        function
        {
            type        linearRamp;
            duration    1;
        }
    }
    \endverbatim
 
SourceFiles
    DistanceFunction_DimensionedFieldFunction.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef DistanceFunction_DimensionedFieldFunction_H
#define DistanceFunction_DimensionedFieldFunction_H
 
#include "DimensionedFieldFunction.H"
#include "Function1.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace DimensionedFieldFunctions
{
 
/*---------------------------------------------------------------------------*\
                            Class DistanceFunction Declaration
\*---------------------------------------------------------------------------*/
 
template<class DimensionedFieldType>
class DistanceFunction
:
    public DimensionedFieldFunction<DimensionedFieldType>
{
    // Private Data
 
        //- Distance DistanceFunction pointer
        autoPtr<Foam::Function1<typename DimensionedFieldType::Type_>> funcPtr_;
 
        //- Direction the DistanceFunction is evaluated for
        vector direction_;
 
 
public:
 
    //- Runtime type information
    TypeName("distanceFunction");
 
 
    // Constructors
 
        //- Construct with dictionary to initialise given field
        DistanceFunction
        (
            const dictionary& dict,
            DimensionedFieldType& field
        );
 
        //- Construct a copy for the given field
        DistanceFunction
        (
            const DistanceFunction& dff,
            DimensionedFieldType& field
        );
 
        //- Construct and return a clone for the specified field
        virtual autoPtr<DimensionedFieldFunction<DimensionedFieldType>>
        clone(DimensionedFieldType& field) const;
 
 
    //- Destructor
    virtual ~DistanceFunction()
    {}
 
 
    // Member Functions
 
        //- Evaluate the function and set the field
        virtual void evaluate();
 
        //- Write data to dictionary stream
        virtual void write(Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace DimensionedFieldFunctions
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
#include "DistanceFunction_DimensionedFieldFunction.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //