orient_zoneGenerator.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::zoneGenerators::orient
 
Description
    A zoneGenerator which sets the face orientation flipMap
 
    based either on the face normal alignment with the given normal or
    orientation with respect to a given point outside the surface.
 
    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     | no       |
        outsidePoint | Point outside the surface | no       |
        moveUpdate   | Switch to update after mesh motion | no | false
    \endtable
 
    To orient the faceZone \c cut corresponding to the positive y-direction:
    \verbatim
        orientedCut
        {
            type        orient;
            normal      (0 1 0);
            cut;
        }
    \endverbatim
 
    To orient the faceZone \c cut with respect to the point (0 100 0) outside
    the surface:
    \verbatim
        orientedCut
        {
            type        orient;
            point       (0 100 0);
            cut;
        }
    \endverbatim
 
SourceFiles
    orient_zoneGenerator.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef orient_zoneGenerator_H
#define orient_zoneGenerator_H
 
#include "zoneGeneratorList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace zoneGenerators
{
 
/*---------------------------------------------------------------------------*\
                        Class orient Declaration
\*---------------------------------------------------------------------------*/
 
class orient
:
    public zoneGenerator
{
    // Private Data
 
        //- Zone generator supplying the faces
        autoPtr<zoneGenerator> zoneGenerator_;
 
        //- Reference unit vector face orientations are compared to
        vector normal_;
 
        //- Seed outside point
        vector outsidePoint_;
 
 
    // Private Member Functions
 
        //- Orientation based on the face normal alignment with the given normal
        boolList normalOrientation(const labelList& faceIndices) const;
 
        //- Orientation based on the given outside point
        boolList pointOrientation(const faceZone& fZone) const;
 
        //- Select orientation algorithm based on the user inputs
        boolList orientation(const faceZone& fZone) const;
 
 
public:
 
    //- Runtime type information
    TypeName("orient");
 
 
    // Constructors
 
        //- Construct from dictionary
        orient
        (
            const word& name,
            const polyMesh& mesh,
            const dictionary& dict
        );
 
 
    //- Destructor
    virtual ~orient();
 
 
    // Member Functions
 
        virtual zoneSet generate() const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace zoneGenerators
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //