sampledTriSurface.H

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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.
 
    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::sampledSurfaces::triSurface
 
Description
    A sampledSurface from a triSurface. It samples on the points/triangles
    of the triSurface. It either samples cells or (non-coupled) boundary faces.
 
    There are 6 possible modes:
 
    - source=cells, interpolate=false:
        Finds per triangle centre the nearest cell centre and uses its value.
 
    - source=cells, interpolate=true
        Finds per triangle centre the nearest cell centre. Per surface point
        checks if this nearest cell is the one containing point; otherwise
        projects the point onto the nearest point on the boundary of the cell
        (to make sure interpolateCellPoint gets a valid location)
 
    - source=insideCells, interpolate=false:
        Finds per triangle centre the cell containing it and uses its value.
        Trims triangles outside mesh.
 
    - source=insideCells, interpolate=true
        Per surface point interpolate cell containing it.
 
    - source=boundaryFaces, interpolate=false:
        Finds per triangle centre the nearest point on the boundary (uncoupled
        faces only) and uses the value (or 0 if the nearest is on an empty
        boundary).
 
    - source=boundaryFaces, interpolate=true:
        Finds per triangle centre the nearest point on the boundary (uncoupled
        faces only). Per surface point projects the point onto this boundary
        face (to make sure interpolateCellPoint gets a valid location)
 
    Since it finds a nearest per triangle each triangle is guaranteed to be on
    one processor only. So after stitching (by sampledSurfaces) the original
    surface should be complete.
 
    Example:
    \verbatim
    {
        type        triSurface;
        surface     "surface.stl";
        source      cells;
        interpolate yes;
    }
    \endverbatim
 
Usage
    \table
        Property     | Description             | Required    | Default value
        surface      | the surface file (within constant/triSurface) | yes |
        source       | see above               | yes         | no
        interpolate  | see above               | no          | no
    \endtable
 
SourceFiles
    sampledTriSurface.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef sampledTriSurface_H
#define sampledTriSurface_H
 
#include "sampledSurface.H"
#include "triSurface_searchableSurface.H"
#include "MeshedSurface.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class treeDataFace;
 
namespace sampledSurfaces
{
 
/*---------------------------------------------------------------------------*\
                          Class triSurface Declaration
\*---------------------------------------------------------------------------*/
 
class triSurface
:
    public sampledSurface,
    public MeshedSurface<face>
{
public:
 
    // Public Typedefs
 
        //- Types of communications
        enum samplingSource
        {
            cells,
            insideCells,
            boundaryFaces,
        };
 
        //- Names of communication types
        static const NamedEnum<samplingSource, 3> samplingSourceNames_;
 
 
private:
 
    // Private Data
 
        //- Surface to sample on
        const searchableSurfaces::triSurface surface_;
 
        //- Whether to sample internal cell values or boundary values
        const samplingSource sampleSource_;
 
        //- Track if the surface needs an update
        mutable bool needsUpdate_;
 
        //- Search tree for all non-coupled boundary faces
        mutable autoPtr<indexedOctree<treeDataFace>> boundaryTreePtr_;
 
        //- From local surface triangle to mesh cell/face.
        labelList sampleElements_;
 
        //- Local points to sample per point
        pointField samplePoints_;
 
 
    // Private Member Functions
 
        //- Get tree of all non-coupled boundary faces
        const indexedOctree<treeDataFace>& nonCoupledboundaryTree() const;
 
        //- Sample field on surface
        template<class Type>
        tmp<Field<Type>> sampleField
        (
            const VolField<Type>& vField
        ) const;
 
        //- Interpolate field on surface
        template<class Type>
        tmp<Field<Type>>
        interpolateField(const interpolation<Type>&) const;
 
 
public:
 
    //- Runtime type information
    TypeName("triSurface");
 
 
    // Constructors
 
        //- Construct from components
        triSurface
        (
            const word& name,
            const polyMesh& mesh,
            const word& surfaceName,
            const samplingSource sampleSource
        );
 
        //- Construct from dictionary
        triSurface
        (
            const word& name,
            const polyMesh& mesh,
            const dictionary& dict
        );
 
        //- Construct from triSurface
        triSurface
        (
            const word& name,
            const polyMesh& mesh,
            const Foam::triSurface& surface,
            const word& sampleSourceName
        );
 
 
    //- Destructor
    virtual ~triSurface();
 
 
    // Member Functions
 
        //- 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 "sampledTriSurfaceTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //