/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
     \\/     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::rotatedBoxToCell

Description
    A topoSetSource to select cells based on cell centres inside
    rotated/skewed box (parallelopiped?).

    Box defined as origin and i,j,k vectors.
    E.g. box rotated 45 degrees around z-axis with sizes sqrt(0.2^2+0.2^2)
    (and extra large, 200 in z direction):
    @verbatim
       origin   ( 0.4 0.4 -100);
       i        ( 0.2 0.2    0);
       j        (-0.2 0.2    0);
       k        ( 0.0 0.0  100);
    @endverbatim

SourceFiles
    rotatedBoxToCell.C

\*---------------------------------------------------------------------------*/

#ifndef rotatedBoxToCell_H
#define rotatedBoxToCell_H

#include <meshTools/topoSetSource.H>
#include <meshTools/treeBoundBox.H>

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

/*---------------------------------------------------------------------------*\
                     Class rotatedBoxToCell Declaration
\*---------------------------------------------------------------------------*/

class rotatedBoxToCell
:
    public topoSetSource
{

    // Private data

        //- Add usage string
        static addToUsageTable usage_;


        //- skewed box
        const vector origin_;
        const vector i_;
        const vector j_;
        const vector k_;


    // Private Member Functions

        void combine(topoSet& set, const bool add) const;


public:

    //- Runtime type information
    TypeName("rotatedBoxToCell");

    // Constructors

        //- Construct from components
        rotatedBoxToCell
        (
            const polyMesh& mesh,
            const vector& origin,
            const vector& i,
            const vector& j,
            const vector& k
        );

        //- Construct from dictionary
        rotatedBoxToCell(const polyMesh& mesh, const dictionary& dict);

        //- Construct from Istream
        rotatedBoxToCell(const polyMesh& mesh, Istream&);


    // Destructor

        virtual ~rotatedBoxToCell();


    // Member Functions

        virtual void applyToSet
        (
            const topoSetSource::setAction action,
            topoSet&
        ) const;

};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************ vim: set sw=4 sts=4 et: ************************ //
