normal_zoneGenerator.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.
 
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Class
    Foam::zoneGenerators::normal
 
Description
    A zoneGenerator which selects the faces returned by the given
    zoneGenerator that are aligned with the given normal.
 
    The returned faceZone is oriented and provides the corresponding flipMap.
 
Usage
    \table
        Property     | Description              | Required | Default value
        type         | Type: face               | yes      |
        name         | Name of the zone         | no       | zoneGenerator name
        normal       | Reference unit vector    | yes      |
        tol          | cos angle tolerance      | yes      |
        moveUpdate   | Switch to update after mesh motion | no | false
    \endtable
 
    To create the faceZone \c floatingObjectBottom containing the faces of the
    \c floatingObject patch which point in the y-direction:
    \verbatim
        floatingObjectBottom
        {
            type        normal;
 
            normal      (0 1 0);
            tol         0.01;
 
            floatingObject
            {
                type        patch;
                patch       floatingObject;
            }
        }
    \endverbatim
 
SourceFiles
    normal_zoneGenerator.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef normal_zoneGenerator_H
#define normal_zoneGenerator_H
 
#include "zoneGeneratorList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace zoneGenerators
{
 
/*---------------------------------------------------------------------------*\
                              Class normal Declaration
\*---------------------------------------------------------------------------*/
 
class normal
:
    public zoneGenerator
{
    // Private Data
 
        //- Zone generator supplying the faces
        autoPtr<zoneGenerator> zoneGenerator_;
 
        //- Reference unit vector face orientations are compared to
        vector normal_;
 
        //- Direction comparison tolerance
        //  cos of angle between normal_ and face normal
        const scalar tol_;
 
 
public:
 
    //- Runtime type information
    TypeName("normal");
 
 
    // Constructors
 
        //- Construct from dictionary
        normal
        (
            const word& name,
            const polyMesh& mesh,
            const dictionary& dict
        );
 
 
    //- Destructor
    virtual ~normal();
 
 
    // Member Functions
 
        virtual zoneSet generate() const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace zoneGenerators
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //