surfaceToCell.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
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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::surfaceToCell
 
Description
    A topoSetSource to select cells based on relation to surface.
 
    Selects:
    - all cells inside/outside/cut by surface
    - all cells inside/outside surface ('useSurfaceOrientation', requires closed
      surface)
    - cells with centre nearer than XXX to surface
    - cells with centre nearer than XXX to surface \b and with normal
      at nearest point to centre and cell-corners differing by
      more than YYY (i.e., point of high curvature)
 
SourceFiles
    surfaceToCell.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef surfaceToCell_H
#define surfaceToCell_H
 
#include "topoSetSource.H"
#include "Map.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
class triSurfaceSearch;
class triSurface;
 
/*---------------------------------------------------------------------------*\
                           Class surfaceToCell Declaration
\*---------------------------------------------------------------------------*/
 
class surfaceToCell
:
    public topoSetSource
{
 
    // Private data
 
        //- Add usage string
        static addToUsageTable usage_;
 
        //- Name of surface file
        const fileName surfName_;
 
        //- Points which are outside
        const pointField outsidePoints_;
 
        //- Include cut cells
        const bool includeCut_;
 
        //- Include inside cells
        const bool includeInside_;
 
        //- Include outside cells
        const bool includeOutside_;
 
        //- Determine inside/outside purely using geometric test
        //  (does not allow includeCut)
        const bool useSurfaceOrientation_;
 
        //- If > 0 : include cells with distance from cellCentre to surface
        //  less than nearDist.
        const scalar nearDist_;
 
        //- If > -1 : include cells with normals at nearest surface points
        //  varying more than curvature_.
        const scalar curvature_;
 
        //- triSurface to search on. On pointer since can be external.
        const triSurface* surfPtr_;
 
        //- Search engine on surface.
        const triSurfaceSearch* querySurfPtr_;
 
        //- Whether I allocated above surface ptrs or whether they are
        //  external.
        const bool IOwnPtrs_;
 
 
    // Private Member Functions
 
        //- Find index of nearest triangle to point. Returns triangle or -1 if
        //  not found within search span.
        //  Cache result under pointI.
        static label getNearest
        (
            const triSurfaceSearch& querySurf,
            const label pointI,
            const point& pt,
            const vector& searchSpan,
            Map<label>& cache
        );
 
        //- Return true if surface normal of nearest points to vertices on
        //  cell differ from that on cell centre. Points cached in
        //  pointToNearest.
        bool differingPointNormals
        (
            const triSurfaceSearch& querySurf,
            const vector& span,
            const label cellI,
            const label cellTriI,
            Map<label>& pointToNearest
        ) const;
 
 
        //- Depending on surface add to or delete from cellSet.
        void combine(topoSet& set, const bool add) const;
 
        //- Check values at construction time.
        void checkSettings() const;
 
        const triSurfaceSearch& querySurf() const
        {
            return *querySurfPtr_;
        }
 
 
public:
 
    //- Runtime type information
    TypeName("surfaceToCell");
 
    // Constructors
 
        //- Construct from components
        surfaceToCell
        (
            const polyMesh& mesh,
            const fileName& surfName,
            const pointField& outsidePoints,
            const bool includeCut,
            const bool includeInside,
            const bool includeOutside,
            const bool useSurfaceOrientation,
            const scalar nearDist,
            const scalar curvature
        );
 
        //- Construct from components (supplied surface, surfaceSearch)
        surfaceToCell
        (
            const polyMesh& mesh,
            const fileName& surfName,
            const triSurface& surf,
            const triSurfaceSearch& querySurf,
            const pointField& outsidePoints,
            const bool includeCut,
            const bool includeInside,
            const bool includeOutside,
            const bool useSurfaceOrientation,
            const scalar nearDist,
            const scalar curvature
        );
 
        //- Construct from dictionary
        surfaceToCell
        (
            const polyMesh& mesh,
            const dictionary& dict
        );
 
        //- Construct from Istream
        surfaceToCell
        (
            const polyMesh& mesh,
            Istream&
        );
 
 
    //- Destructor
    virtual ~surfaceToCell();
 
 
    // Member Functions
 
        virtual sourceType setType() const
        {
            return CELLSETSOURCE;
        }
 
        virtual void applyToSet
        (
            const topoSetSource::setAction action,
            topoSet&
        ) const;
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //