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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
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
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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::distributions::tabulatedDensity
Description
Distribution in which the probability density function is given as a table
of values
Usage
Example usage:
\verbatim
{
type tabulatedDensity;
Q 0;
distribution
(
(10e-6 0.0025)
(12e-6 0.2795)
(15e-6 2.3988)
(19e-6 6.3888)
(25e-6 10.3153)
(31e-6 12.0030)
(39e-6 10.8427)
(50e-6 6.1333)
(63e-6 3.4688)
);
}
\endverbatim
SourceFiles
tabulatedDensity.C
See also
Foam::distribution
\*---------------------------------------------------------------------------*/
#ifndef tabulatedDensity_H
#define tabulatedDensity_H
#include "distribution.H"
#include "TableReader.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace distributions
{
/*---------------------------------------------------------------------------*\
Class tabulatedDensity Declaration
\*---------------------------------------------------------------------------*/
class tabulatedDensity
:
public FieldDistribution<distribution, tabulatedDensity>
{
private:
// Private Data
//- Table reader
const autoPtr<TableReader<scalar, scalar>> reader_;
//- X-coordinates
scalarField x_;
//- Probability Density Function
scalarField PDF_;
//- Cumulative Distribution Function
scalarField CDF_;
public:
//- Runtime type information
TypeName("tabulatedDensity");
// Constructors
//- Construct from a dictionary
tabulatedDensity
(
const unitSet& units,
const dictionary& dict,
const label sampleQ,
randomGenerator&& rndGen
);
//- Construct copy
tabulatedDensity(const tabulatedDensity& d, const label sampleQ);
//- Construct and return a clone
virtual autoPtr<distribution> clone(const label sampleQ) const
{
return autoPtr<distribution>(new tabulatedDensity(*this, sampleQ));
}
//- Destructor
virtual ~tabulatedDensity();
// Member Functions
//- Sample the distribution
virtual scalar sample() const;
//- Sample the distribution
using FieldDistribution<distribution, tabulatedDensity>::sample;
//- Return the minimum value
virtual scalar min() const;
//- Return the maximum value
virtual scalar max() const;
//- Return the mean value
virtual scalar mean() const;
//- Return the integral of the PDF multiplied by an integer power of x
virtual tmp<scalarField> integralPDFxPow
(
const scalarField& x,
const label e,
const bool consistent = false
) const;
//- Write to a stream
virtual void write(Ostream& os, const unitSet& units) const;
//- Return coordinates to plot across the range of the distribution
virtual tmp<scalarField> plotX(const label n) const;
//- Return values to plot the probability density function
virtual tmp<scalarField> plotPDF(const scalarField& x) const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace distributions
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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