patchCutLayerAverage.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::functionObjects::patchCutLayerAverage
 
Description
    This function object writes graphs of patch face values, area-averaged in
    planes perpendicular to a given direction or in contours of a given
    distance field. It adaptively grades the distribution of graph points to
    match the resolution of the mesh.
 
    Example of function object specification:
    \verbatim
    patchCutLayerAverage1
    {
        type            patchCutLayerAverage;
        libs            ("libpatchCutLayerAverageFunctionObject.so");
 
        writeControl    writeTime;
        writeInterval   1;
 
        patch           lowerWall;
        direction       (1 0 0);
        nPoints         100;
        interpolate     no;
 
        fields          (p U);
 
        axis            x;
        setFormat       raw;
    }
    \endverbatim
 
Usage
    \table
        Property    | Description                  | Required | Default value
        type        | type name: patchCutLayerAverage | yes   |
        patch       | Name of the patch            | yes      |
        direction   | Axis along which to plot    | if distance not specified |
        distance    | Distance field along which to plot \\
                                                 | if direction not specified |
        nPoints     | Number of points in the plot | yes      |
        interpolate | Do linear interpolation      | no       | false
        fields      | Fields to plot values of     | yes      |
        axis        | Component of the position to plot against | yes |
        setFormat   | Format of the output file    | yes      |
    \endtable
 
SourceFiles
    patchCutLayerAverage.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef patchCutLayerAverage_H
#define patchCutLayerAverage_H
 
#include "fvMeshFunctionObject.H"
#include "vector.H"
#include "setWriter.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class polyPatch;
 
namespace functionObjects
{
 
/*---------------------------------------------------------------------------*\
                       Class patchCutLayerAverage Declaration
\*---------------------------------------------------------------------------*/
 
class patchCutLayerAverage
:
    public fvMeshFunctionObject
{
    // Private Structures
 
        //- Weight for a given face and layer
        struct weight
        {
            label facei, layeri;
            scalar value;
        };
 
 
    // Private Data
 
        //- Name of the patch
        word patchName_;
 
        //- Direction along which to plot
        vector direction_;
 
        //- Name of the distance field along which to plot
        word distanceName_;
 
        //- Number of layers
        label nLayers_;
 
        //- Whether or not to interpolate
        bool interpolate_;
 
        //- Fields to plot
        wordList fields_;
 
        //- The direction over which to plot the results
        coordSet::axisType axis_;
 
        //- File writer
        autoPtr<setWriter> formatter_;
 
        //- Number of optimisation iterations. Default is 2.
        label nOptimiseIter_;
 
        //- Weights
        autoPtr<List<weight>> weights_;
 
        //- Layer distances. The distance of the layers' cut-planes to the
        //  origin, in the direction of the given vector. If interpolate is
        //  false, then the distance is taken to the middle of the layer.
        autoPtr<scalarField> layerDistances_;
 
        //- Layer thicknesses. If interpolate is false, then this is the
        //  thickness of the layer that the plot point represents.
        autoPtr<scalarField> layerThicknesses_;
 
        //- Layer positions. The average position of the layer.
        autoPtr<pointField> layerPositions_;
 
 
    // Private Member functions
 
        //- Return the output path
        fileName outputPath() const;
 
        //- Calculate and return non-interpolating weights
        List<weight> calcNonInterpolatingWeights
        (
            const scalarField& pointXs,
            const scalarField& faceMinXs,
            const scalarField& faceMaxXs,
            const labelList& faceMinOrder,
            const scalarField& plotXs,
            const bool normalise = true
        ) const;
 
        //- Calculate and return interpolating weights
        List<weight> calcInterpolatingWeights
        (
            const scalarField& pointXs,
            const scalarField& faceMinXs,
            const scalarField& faceMaxXs,
            const labelList& faceMinOrder,
            const scalarField& plotXs,
            const bool normalise = true
        ) const;
 
        //- Calculate and return weights
        List<weight> calcWeights
        (
            const scalarField& pointXs,
            const scalarField& faceMinXs,
            const scalarField& faceMaxXs,
            const labelList& faceMinOrder,
            const scalarField& plotXs,
            const bool normalise = true
        ) const;
 
        //- Calculate and set the weights member data
        void calcWeights();
 
        //- Construct plot values from face values given a set of weights
        template<class Type>
        inline tmp<Field<Type>> applyWeights
        (
            const List<weight>& weights,
            const Field<Type>& faceValues
        ) const;
 
        //- Clear the cached weights
        void clear();
 
 
public:
 
    //- Runtime type information
    TypeName("patchCutLayerAverage");
 
 
    // Constructors
 
        //- Construct from Time and dictionary
        patchCutLayerAverage
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );
 
 
    //- Destructor
    virtual ~patchCutLayerAverage();
 
 
    // Member Functions
 
        //- Read the patchCutLayerAverage data
        virtual bool read(const dictionary&);
 
        //- Return the list of fields required
        virtual wordList fields() const;
 
        //- Execute, currently does nothing
        virtual bool execute();
 
        //- Write the patchCutLayerAverage
        virtual bool write();
 
        //- Update for mesh point-motion
        virtual void movePoints(const polyMesh&);
 
        //- Update topology using the given map
        virtual void topoChange(const polyTopoChangeMap&);
 
        //- Update from another mesh using the given map
        virtual void mapMesh(const polyMeshMap&);
 
        //- Redistribute or update using the given distribution map
        virtual void distribute(const polyDistributionMap&);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionObjects
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //