sampledThresholdCellFaces.H

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/*---------------------------------------------------------------------------*\
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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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    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::sampledSurfaces::thresholdCellFaces
 
Description
    A sampledSurface defined by the cell faces corresponding to a threshold
    value.
 
    Example:
    \verbatim
    {
        type        thresholdCellFaces;
        field       p;
        lowerLimit  5;
        upperLimit  10;
        interpolate yes;
    }
    \endverbatim
 
Usage
    \table
        Property     | Description             | Required    | Default value
        field        | the field to threshold  | yes         |
        lowerLimit   | the limit below which cells are omitted \\
                     | if no upperLimit | -vGreat
        upperLimit   | the limit above which cells are omitted \\
                     | if no lowerLimit | +vGreat
        interpolate  | interpolate values to the surface points | no | no
    \endtable
 
SourceFiles
    sampledThresholdCellFaces.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef sampledThresholdCellFaces_H
#define sampledThresholdCellFaces_H
 
#include "sampledSurface.H"
#include "MeshedSurface.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace sampledSurfaces
{
 
/*---------------------------------------------------------------------------*\
                     Class thresholdCellFaces Declaration
\*---------------------------------------------------------------------------*/
 
class thresholdCellFaces
:
    public sampledSurface,
    public MeshedSurface<face>
{
    // Private Data
 
        //- Field to get threshold
        const word fieldName_;
 
        //- Threshold value
        const scalar lowerThreshold_;
 
        //- Threshold value
        const scalar upperThreshold_;
 
        //- Triangulated faces or keep faces as is
        bool triangulate_;
 
        //- 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 field on faces
        template<class Type>
        tmp<Field<Type>> sampleField
        (
            const VolField<Type>& vField
        ) const;
 
 
        template<class Type>
        tmp<Field<Type>>
        interpolateField(const interpolation<Type>&) const;
 
 
public:
 
    //- Runtime type information
    TypeName("thresholdCellFaces");
 
 
    // Constructors
 
        //- Construct from dictionary
        thresholdCellFaces
        (
            const word& name,
            const polyMesh&,
            const dictionary&
        );
 
 
    //- Destructor
    virtual ~thresholdCellFaces();
 
 
    // Member Functions
 
        //- Return the list of fields required
        virtual wordList fields() const;
 
        //- Does the surface need an update?
        virtual bool needsUpdate() const;
 
        //- 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 MeshedSurface<face>::points();
        }
 
        //- Faces of surface
        virtual const faceList& faces() const
        {
            return MeshedSurface<face>::faces();
        }
 
        //- Sample field on the surface's faces
        #define DEFINE_SAMPLE(Type, nullArg)                                   \
            virtual tmp<Field<Type>> sample                                    \
            (                                                                  \
                const VolField<Type>&                                          \
            ) const;
        FOR_ALL_FIELD_TYPES(DEFINE_SAMPLE);
        #undef DEFINE_SAMPLE
 
        //- Interpolate field to the surface's points
        #define DEFINE_INTERPOLATE(Type, nullArg)                              \
            virtual tmp<Field<Type>> interpolate                               \
            (                                                                  \
                const interpolation<Type>&                                     \
            ) const;
        FOR_ALL_FIELD_TYPES(DEFINE_INTERPOLATE);
        #undef DEFINE_INTERPOLATE
 
        //- Update for mesh point-motion
        virtual void movePoints();
 
        //- 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&);
 
        //- Write
        virtual void print(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace sampledSurfaces
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "sampledThresholdCellFacesTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //