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functionObjects/field/histogram: New functionObject to write the volume-weighted histogram of a volScalarField

Browse Source 
e.g.
    pressureHistogram
    {
        type            histogram;

        functionObjectLibs ("libfieldFunctionObjects.so");

        field           p;
        nBins           100;
        min             -5;
        max             5;
        setFormat       gnuplot;
    }
This commit is contained in:
Henry Weller
2016-04-28 20:40:32 +01:00
parent 62c62abda8
commit 81041e5d3c
5 changed files with 528 additions and 0 deletions
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3
src/postProcessing/functionObjects/field/Make/files
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@ -46,4 +46,7 @@ surfaceInterpolateFields/surfaceInterpolateFieldsFunctionObject.C
regionSizeDistribution/regionSizeDistribution.C regionSizeDistribution/regionSizeDistribution.C
regionSizeDistribution/regionSizeDistributionFunctionObject.C regionSizeDistribution/regionSizeDistributionFunctionObject.C
histogram/histogram.C
histogram/histogramFunctionObject.C
LIB = $(FOAM_LIBBIN)/libfieldFunctionObjects LIB = $(FOAM_LIBBIN)/libfieldFunctionObjects

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src/postProcessing/functionObjects/field/histogram/histogram.C Normal file
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@ -0,0 +1,221 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2016 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/>.
\*---------------------------------------------------------------------------*/
#include "histogram.H"
#include "volFields.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace functionObjects
{
defineTypeNameAndDebug(histogram, 0);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::functionObjects::histogram::writeGraph
(
const coordSet& coords,
const word& fieldName,
const scalarField& values
) const
{
const wordList fieldNames(1, fieldName);
fileName outputPath = baseTimeDir();
mkDir(outputPath);
OFstream graphFile
(
outputPath/formatterPtr_().getFileName(coords, fieldNames)
);
Info<< "Writing histogram of " << fieldName
<< " to " << graphFile.name() << endl;
List<const scalarField*> yPtrs(1);
yPtrs[0] = &values;
formatterPtr_().write(coords, fieldNames, yPtrs, graphFile);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::functionObjects::histogram::histogram
(
const word& name,
const objectRegistry& obr,
const dictionary& dict,
const bool loadFromFiles
)
:
functionObjectFile(obr, name, typeName),
name_(name),
obr_(obr),
active_(true)
{
// Check if the available mesh is an fvMesh, otherwise deactivate
if (isA<fvMesh>(obr_))
{
read(dict);
}
else
{
active_ = false;
WarningInFunction
<< "No fvMesh available, deactivating " << name_ << nl
<< endl;
}
}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::functionObjects::histogram::~histogram()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::functionObjects::histogram::read(const dictionary& dict)
{
if (active_)
{
dict.lookup("field") >> fieldName_;
dict.lookup("max") >> max_;
min_ = 0.0;
dict.readIfPresent("min", min_);
dict.lookup("nBins") >> nBins_;
word format(dict.lookup("setFormat"));
formatterPtr_ = writer<scalar>::New(format);
}
}
void Foam::functionObjects::histogram::execute()
{}
void Foam::functionObjects::histogram::end()
{}
void Foam::functionObjects::histogram::timeSet()
{}
void Foam::functionObjects::histogram::write()
{
if (active_)
{
Info<< type() << " " << name_ << " output:" << nl;
const fvMesh& mesh = refCast<const fvMesh>(obr_);
autoPtr<volScalarField> fieldPtr;
if (obr_.foundObject<volScalarField>(fieldName_))
{
Info<< " Looking up field " << fieldName_ << endl;
}
else
{
Info<< " Reading field " << fieldName_ << endl;
fieldPtr.reset
(
new volScalarField
(
IOobject
(
fieldName_,
mesh.time().timeName(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
),
mesh
)
);
}
const volScalarField& field =
(
fieldPtr.valid()
? fieldPtr()
: obr_.lookupObject<volScalarField>(fieldName_)
);
// Calculate the mid-points of bins for the graph axis
pointField xBin(nBins_);
const scalar delta = (max_- min_)/nBins_;
scalar x = min_ + 0.5*delta;
forAll(xBin, i)
{
xBin[i] = point(x, 0, 0);
x += delta;
}
scalarField volFrac(nBins_, 0);
const scalarField& V = mesh.V();
forAll(field, celli)
{
const label bini = (field[celli] - min_)/delta;
if (bini >= 0 && bini < nBins_)
{
volFrac[bini] += V[celli];
}
}
Pstream::listCombineGather(volFrac, plusEqOp<scalar>());
if (Pstream::master())
{
const scalar sumVol = sum(volFrac);
if (sumVol > SMALL)
{
volFrac /= sumVol;
const coordSet coords
(
"Volume_Fraction",
"x",
xBin,
mag(xBin)
);
writeGraph(coords, field.name(), volFrac);
}
}
}
}
// ************************************************************************* //

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src/postProcessing/functionObjects/field/histogram/histogram.H Normal file
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@ -0,0 +1,204 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2016 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::functionObjects::histogram
Group
grpFieldFunctionObjects
Description
Write the volume-weighted histogram of a volScalarField.
Example of function object specification:
\verbatim
histogram1
{
type histogram;
functionObjectLibs ("libfieldFunctionObjects.so");
field p;
nBins 100;
min -5;
max 5;
setFormat gnuplot;
}
\endverbatim
\heading Function object usage
\table
Property | Description | Required | Default value
type | type name: histogram | yes |
field | Field to analyse | yes |
nBins | Number of bins for the histogram | yes|
max | Maximum value sampled | yes |
min | minimum value sampled | no | 0
setFormat | Output format | yes |
\endtable
SeeAlso
Foam::functionObject
Foam::OutputFilterFunctionObject
SourceFiles
histogram.C
\*---------------------------------------------------------------------------*/
#ifndef functionObjects_histogram_H
#define functionObjects_histogram_H
#include "functionObjectFile.H"
#include "writer.H"
#include "volFieldsFwd.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// Forward declaration of classes
class mapPolyMesh;
class polyMesh;
namespace functionObjects
{
/*---------------------------------------------------------------------------*\
Class histogram Declaration
\*---------------------------------------------------------------------------*/
class histogram
:
public functionObjectFile
{
// Private data
//- Name of this set of histogram objects
word name_;
const objectRegistry& obr_;
//- on/off switch
bool active_;
//- Name of field
word fieldName_;
//- Maximum value
scalar max_;
//- Minimum value
scalar min_;
//- Mumber of bins
label nBins_;
//- Output formatter to write
autoPtr<writer<scalar>> formatterPtr_;
// Private Member Functions
void writeGraph
(
const coordSet& coords,
const word& valueName,
const scalarField& values
) const;
//- Disallow default bitwise copy construct
histogram(const histogram&);
//- Disallow default bitwise assignment
void operator=(const histogram&);
public:
//- Runtime type information
TypeName("histogram");
// Constructors
//- Construct for given objectRegistry and dictionary.
// Allow the possibility to load fields from files
histogram
(
const word& name,
const objectRegistry&,
const dictionary&,
const bool loadFromFiles = false
);
// Destructor
virtual ~histogram();
// Member Functions
//- Return name of the set of histogram
virtual const word& name() const
{
return name_;
}
//- Read the histogram data
virtual void read(const dictionary&);
//- Execute, currently does nothing
virtual void execute();
//- Execute at the final time-loop, currently does nothing
virtual void end();
//- Called when time was set at the end of the Time::operator++
virtual void timeSet();
//- Calculate the histogram and write
virtual void write();
//- Update for changes of mesh
virtual void updateMesh(const mapPolyMesh&)
{}
//- Update for changes of mesh
virtual void movePoints(const polyMesh&)
{}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace functionObjects
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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src/postProcessing/functionObjects/field/histogram/histogramFunctionObject.C Normal file
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@ -0,0 +1,46 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2016 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/>.
\*---------------------------------------------------------------------------*/
#include "histogramFunctionObject.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineNamedTemplateTypeNameAndDebug
(
histogramFunctionObject,
0
);
addToRunTimeSelectionTable
(
functionObject,
histogramFunctionObject,
dictionary
);
}
// ************************************************************************* //

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src/postProcessing/functionObjects/field/histogram/histogramFunctionObject.H Normal file
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@ -0,0 +1,54 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2016 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/>.
Typedef
Foam::histogramFunctionObject
Description
FunctionObject wrapper around histogram to allow it to be
created via the functions list within controlDict.
SourceFiles
histogramFunctionObject.C
\*---------------------------------------------------------------------------*/
#ifndef histogramFunctionObject_H
#define histogramFunctionObject_H
#include "histogram.H"
#include "OutputFilterFunctionObject.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
typedef OutputFilterFunctionObject<functionObjects::histogram>
histogramFunctionObject;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //