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133 lines
3.3 KiB
C++
133 lines
3.3 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2008-2009 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Class
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Foam::polynomial
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Description
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Polynomial container data entry for scalars. Items are stored in a list of
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Tuple2's. Data is input in the form, e.g. for an entry <entryName> that
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describes y = x^2 + 2x^3
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@verbatim
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<entryName> polynomial
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(
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(1 2)
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(2 3)
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);
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@endverbatim
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SourceFiles
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polynomial.C
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\*---------------------------------------------------------------------------*/
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#ifndef polynomial_H
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#define polynomial_H
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#include "DataEntry.H"
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#include "Tuple2.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// Forward declaration of classes
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class polynomial;
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// Forward declaration of friend functions
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Ostream& operator<<
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(
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Ostream&,
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const polynomial&
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);
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/*---------------------------------------------------------------------------*\
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Class polynomial Declaration
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\*---------------------------------------------------------------------------*/
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class polynomial
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:
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public DataEntry<scalar>
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{
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// Private data
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//- Polynomial coefficients - list of prefactor, exponent
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List<Tuple2<scalar, scalar> > coeffs_;
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// Private Member Functions
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//- Disallow default bitwise assignment
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void operator=(const polynomial&);
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public:
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//- Runtime type information
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TypeName("polynomial");
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// Constructors
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//- Construct from entry name and Istream
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polynomial(const word& entryName, Istream& is);
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//- Copy constructor
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polynomial(const polynomial& poly);
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//- Destructor
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virtual ~polynomial();
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// Member Functions
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//- Return polynomial value
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scalar value(const scalar x) const;
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//- Integrate between two (scalar) values
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scalar integrate(const scalar x1, const scalar x2) const;
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//- Ostream Operator
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friend Ostream& operator<<
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(
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Ostream&,
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const polynomial&
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);
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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