sampledThresholdCellFaces.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2016-2021 OpenCFD Ltd.
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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.
 
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    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::sampledThresholdCellFaces
 
Description
    A sampledSurface defined by the cell faces corresponding to a threshold
    value.
 
    This is often embedded as part of a sampled surfaces function object.
 
Usage
    Example of function object partial specification:
    \verbatim
    surfaces
    {
        surface1
        {
            type    thresholdCellFaces;
            field   rho;
            lowerLimit 0.1;
        }
    }
    \endverbatim
 
    Where the sub-entries comprise:
    \table
        Property | Description                             | Required | Default
        type     | thresholdCellFaces                      | yes      |
        field    | field name for threshold                | yes      |
        lowerLimit | lower limit for threshold             | partly   | -Inf
        upperLimit | upper limit for threshold             | partly   | +Inf
        triangulate | triangulate faces                    | no       | false
    \endtable
 
Note
    Must specify at least one or both of \c lowerLimit or \c upperLimit
 
SeeAlso
    Foam::thresholdCellFaces
 
SourceFiles
    sampledThresholdCellFaces.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef sampledThresholdCellFaces_H
#define sampledThresholdCellFaces_H
 
#include "sampledSurface.H"
#include "MeshedSurface.H"
#include "MeshedSurfacesFwd.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                    Class sampledThresholdCellFaces Declaration
\*---------------------------------------------------------------------------*/
 
class sampledThresholdCellFaces
:
    public sampledSurface,
    public meshedSurface
{
        // Private typedef for convenience
        typedef meshedSurface Mesh;
 
 
    // Private Data
 
        //- Threshold field
        const word fieldName_;
 
        //- Threshold value
        const scalar lowerThreshold_;
 
        //- Threshold value
        const scalar upperThreshold_;
 
        //- Triangulated faces or keep faces as is
        bool triangulate_;
 
        // Recreated for every time-step
 
        //- Time at last call, also track it surface needs an update
        mutable label prevTimeIndex_;
 
        //- For every face the original cell in mesh
        mutable labelList meshCells_;
 
 
    // Private Member Functions
 
        //- Create surface (if time has changed)
        //  Do nothing (and return false) if no update was needed
        bool updateGeometry() const;
 
        //- Sample volume field onto surface faces
        template<class Type>
        tmp<Field<Type>> sampleOnFaces
        (
            const interpolation<Type>& sampler
        ) const;
 
        //- Interpolate volume field onto surface points
        template<class Type>
        tmp<Field<Type>> sampleOnPoints
        (
            const interpolation<Type>& interpolator
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("sampledThresholdCellFaces");
 
 
    // Constructors
 
        //- Construct from dictionary
        sampledThresholdCellFaces
        (
            const word& name,
            const polyMesh&,
            const dictionary&
        );
 
 
    //- Destructor
    virtual ~sampledThresholdCellFaces() = default;
 
 
    // Member Functions
 
        //- Does the surface need an update?
        virtual bool needsUpdate() const;
 
        //- Mark the surface as needing an update.
        //  May also free up unneeded data.
        //  Return false if surface was already marked as expired.
        virtual bool expire();
 
        //- Update the surface as required.
        //  Do nothing (and return false) if no update was needed
        virtual bool update();
 
        //- Points of surface
        virtual const pointField& points() const
        {
            return Mesh::points();
        }
 
        //- Faces of surface
        virtual const faceList& faces() const
        {
            return Mesh::surfFaces();
        }
 
        //- Per-face zone/region information
        virtual const labelList& zoneIds() const
        {
            return labelList::null();
        }
 
        //- Face area vectors (normals)
        virtual const vectorField& Sf() const
        {
            return Mesh::Sf();
        }
 
        //- Face area magnitudes
        virtual const scalarField& magSf() const
        {
            return Mesh::magSf();
        }
 
        //- Face centres
        virtual const vectorField& Cf() const
        {
            return Mesh::Cf();
        }
 
 
    // Sample
 
        //- Sample volume field onto surface faces
        virtual tmp<scalarField> sample
        (
            const interpolation<scalar>& sampler
        ) const;
 
        //- Sample volume field onto surface faces
        virtual tmp<vectorField> sample
        (
            const interpolation<vector>& sampler
        ) const;
 
        //- Sample volume field onto surface faces
        virtual tmp<sphericalTensorField> sample
        (
            const interpolation<sphericalTensor>& sampler
        ) const;
 
        //- Sample volume field onto surface faces
        virtual tmp<symmTensorField> sample
        (
            const interpolation<symmTensor>& sampler
        ) const;
 
        //- Sample volume field onto surface faces
        virtual tmp<tensorField> sample
        (
            const interpolation<tensor>& sampler
        ) const;
 
 
    // Interpolate
 
        //- Interpolate volume field onto surface points
        virtual tmp<scalarField> interpolate
        (
            const interpolation<scalar>& interpolator
        ) const;
 
        //- Interpolate volume field onto surface points
        virtual tmp<vectorField> interpolate
        (
            const interpolation<vector>& interpolator
        ) const;
 
        //- Interpolate volume field onto surface points
        virtual tmp<sphericalTensorField> interpolate
        (
            const interpolation<sphericalTensor>& interpolator
        ) const;
 
        //- Interpolate volume field onto surface points
        virtual tmp<symmTensorField> interpolate
        (
            const interpolation<symmTensor>& interpolator
        ) const;
 
        //- Interpolate volume field onto surface points
        virtual tmp<tensorField> interpolate
        (
            const interpolation<tensor>& interpolator
        ) const;
 
 
    // Output
 
        //- Print information
        virtual void print(Ostream& os, int level=0) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "sampledThresholdCellFacesTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //