sampledSet.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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::sampledSet
 
Group
    grpFunctionObjects
 
Description
    Holds list of sampling points which is filled at construction time.
    Various implementations of this base class to e.g. get sampling points
    at uniform distance along a line (uniformSet) or directly specified
    (cloudSet)
 
    Each 'sampledSet' has a name and a specifier of how the axis should be
    write (x/y/z component or all 3 components)
 
SourceFiles
    sampledSet.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef sampledSet_H
#define sampledSet_H
 
#include "coordSet.H"
#include "typeInfo.H"
#include "runTimeSelectionTables.H"
#include "autoPtr.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of classes
class polyMesh;
class meshSearch;
 
/*---------------------------------------------------------------------------*\
                         Class sampledSet Declaration
\*---------------------------------------------------------------------------*/
 
class sampledSet
:
    public coordSet
{
    // Private data
 
        //- Reference to mesh
        const polyMesh& mesh_;
 
        //- Reference to mesh searching class
        const meshSearch& searchEngine_;
 
 
protected:
 
        //- Segment numbers
        labelList segments_;
 
        //- Cell numbers
        labelList cells_;
 
        //- Face numbers (-1 if not known)
        labelList faces_;
 
 
    // Protected Member Functions
 
        //- Returns cell next to boundary face
        label getBoundaryCell(const label) const;
 
        //- Returns cell using face and containing sample
        label getCell
        (
            const label faceI,
            const point& sample
        ) const;
 
        //- Calculates inproduct of face normal and vector sample-face centre
        //  <0 if sample inside.
        scalar calcSign(const label faceI, const point& sample) const;
 
        //- Returns face label (or -1) of face which is close to sample
        label findNearFace
        (
            const label cellI,
            const point& sample,
            const scalar smallDist
        ) const;
 
        //- Moves sample in direction of -n to it is 'inside' of faceI
        point pushIn
        (
            const point& sample,
            const label faceI
        ) const;
 
        //- Calculates start of tracking given samplePt and first boundary
        //  intersection
        //  (bPoint, bFaceI) (bFaceI == -1 if no boundary intersection)
        //  Returns true if trackPt is valid sampling point. Sets trackPt,
        //  trackFaceI, trackCellI (-1 if no tracking point found)
        bool getTrackingPoint
        (
            const vector& offset,
            const point& samplePt,
            const point& bPoint,
            const label bFaceI,
 
            point& trackPt,
            label& trackCellI,
            label& trackFaceI
        ) const;
 
        //- Sets sample data
        void setSamples
        (
            const List<point>& samplingPts,
            const labelList& samplingCells,
            const labelList& samplingFaces,
            const labelList& samplingSegments,
            const scalarList& samplingCurveDist
        );
 
 
public:
 
    //- Runtime type information
    TypeName("sampledSet");
 
 
    // Declare run-time constructor selection table
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            sampledSet,
            word,
            (
                const word& name,
                const polyMesh& mesh,
                const meshSearch& searchEngine,
                const dictionary& dict
            ),
            (name, mesh, searchEngine, dict)
        );
 
 
        //- Class used for the read-construction of
        //  PtrLists of sampledSet
        class iNew
        {
            const polyMesh& mesh_;
            const meshSearch& searchEngine_;
 
        public:
 
            iNew(const polyMesh& mesh, const meshSearch& searchEngine)
            :
                mesh_(mesh),
                searchEngine_(searchEngine)
            {}
 
            autoPtr<sampledSet> operator()(Istream& is) const
            {
                word name(is);
                dictionary dict(is);
                return sampledSet::New(name, mesh_, searchEngine_, dict);
            }
        };
 
 
    // Static data
 
        //- Tolerance when comparing points. Usually relative to difference
        //  between start_ and end_
        static const scalar tol;
 
 
    // Constructors
 
        //- Construct from components
        sampledSet
        (
            const word& name,
            const polyMesh& mesh,
            const meshSearch& searchEngine,
            const word& axis
        );
 
        //- Construct from dictionary
        sampledSet
        (
            const word& name,
            const polyMesh& mesh,
            const meshSearch& searchEngine,
            const dictionary& dict
        );
 
        //- Clone
        autoPtr<sampledSet> clone() const
        {
            NotImplemented;
            return autoPtr<sampledSet>(NULL);
        }
 
 
    // Selectors
 
        //- Return a reference to the selected sampledSet
        static autoPtr<sampledSet> New
        (
            const word& name,
            const polyMesh& mesh,
            const meshSearch& searchEngine,
            const dictionary& dict
        );
 
 
    //- Destructor
    virtual ~sampledSet();
 
 
    // Member Functions
 
        const polyMesh& mesh() const
        {
            return mesh_;
        }
 
        const meshSearch& searchEngine() const
        {
            return searchEngine_;
        }
 
        const labelList& segments() const
        {
            return segments_;
        }
 
        const labelList& cells() const
        {
            return cells_;
        }
 
        const labelList& faces() const
        {
            return faces_;
        }
 
        //- Output for debugging
        Ostream& write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //