UniformValueField.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2018-2024 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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Class
    Foam::PatchFunction1Types::UniformValueField

Description
    Templated function that returns a uniform field based on a run-time
    selectable Function1 entry.

    Usage - for entry <entryName> returning the value <value>:
    \verbatim
        <entryName>    uniformValue
    \endverbatim

SourceFiles
    UniformValueField.C

\*---------------------------------------------------------------------------*/

#ifndef Foam_PatchFunction1Types_UniformValueField_H
#define Foam_PatchFunction1Types_UniformValueField_H

#include "PatchFunction1.H"
#include "Function1.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace PatchFunction1Types
{

/*---------------------------------------------------------------------------*\
                     Class UniformValueField Declaration
\*---------------------------------------------------------------------------*/

template<class Type>
class UniformValueField
:
    public PatchFunction1<Type>
{
    // Private Data

        //- Source of uniform values (in local coordinate system)
        autoPtr<Foam::Function1<Type>> uniformValuePtr_;


public:

    // Runtime type information
    TypeName("uniformValue");


    // Generated Methods

        //- No copy assignment
        void operator=(const UniformValueField<Type>&) = delete;


    // Constructors

        //- Construct from entry name and dictionary
        UniformValueField
        (
            const polyPatch& pp,
            const word& redirectType,
            const word& entryName,
            const dictionary& dict,
            const bool faceValues = true
        );

        //- Copy construct setting patch
        explicit UniformValueField
        (
            const UniformValueField<Type>& rhs,
            const polyPatch& pp
        );

        //- Copy construct
        explicit UniformValueField(const UniformValueField<Type>& rhs);

        //- Return a clone
        virtual tmp<PatchFunction1<Type>> clone() const
        {
            return PatchFunction1<Type>::Clone(*this);
        }

        //- Return a clone, setting the patch
        virtual tmp<PatchFunction1<Type>> clone(const polyPatch& pp) const
        {
            return PatchFunction1<Type>::Clone(*this, pp);
        }


    //- Destructor
    virtual ~UniformValueField() = default;


    // Member Functions

        //- Is value constant (i.e. independent of x)
        virtual inline bool constant() const
        {
            return (uniformValuePtr_ && uniformValuePtr_->constant());
        }

        //- Can function be evaluated?
        virtual inline bool good() const
        {
            return (uniformValuePtr_ && uniformValuePtr_->good());
        }

        //- Is value uniform (i.e. independent of coordinate)
        virtual inline bool uniform() const
        {
            return PatchFunction1<Type>::uniform();
        }


        // Evaluation

            //- Return UniformValueField value
            virtual inline tmp<Field<Type>> value(const scalar x) const;

            //- Integrate between two values
            virtual inline tmp<Field<Type>> integrate
            (
                const scalar x1,
                const scalar x2
            ) const;


        // Mapping

            //- Map (and resize as needed) from self given a mapping object
            virtual void autoMap(const FieldMapper& mapper);

            //- Reverse map the given PatchFunction1 onto this PatchFunction1
            virtual void rmap
            (
                const PatchFunction1<Type>& pf1,
                const labelList& addr
            );


        // I-O

            //- Write in dictionary format
            virtual void writeData(Ostream& os) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace PatchFunction1Types
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

// Macros

#undef  addUniformValueFieldFunction1s
#define addUniformValueFieldFunction1s(F1Name, Type)                           \
    PatchFunction1<Type>::adddictionaryConstructorToTable                      \
    <PatchFunction1Types::UniformValueField<Type>>                             \
        add##F1Name##UniformValueField##Type##ConstructorToTable_(#F1Name);


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#include "UniformValueFieldI.H"

#ifdef NoRepository
    #include "UniformValueField.C"
#endif

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //