/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 1991-2009 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 2 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, write to the Free Software Foundation,
    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

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

#include "argList.H"
#include "Time.H"
#include "fvMesh.H"
#include "IStringStream.H"
#include "octree.H"
#include "octreeDataCell.H"
#include "OFstream.H"

using namespace Foam;

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Main program:

int main(int argc, char *argv[])
{
    argList::validArgs.append("point (x y z)");

#   include "setRootCase.H"
#   include "createTime.H"
#   include "createMesh.H"

    point sample(IStringStream(args.additionalArgs()[0])());

    treeBoundBox meshBb(mesh.points());

    // Calculate typical cell releated size to shift bb by.
    scalar typDim = meshBb.avgDim()/(2.0*Foam::cbrt(scalar(mesh.nCells())));

    treeBoundBox shiftedBb
    (
        meshBb.min(),
        meshBb.max() + vector(typDim, typDim, typDim)
    );


    Info<< "Mesh" << endl;
    Info<< "   bounding box           : " << meshBb << endl;
    Info<< "   bounding box (shifted) : " << shiftedBb << endl;
    Info<< "   typical dimension      : " << shiftedBb.typDim() << endl;


    /*
     * Now we have allBb and shiftedBb
     */

    // Wrap indices and mesh information into helper object
    octreeDataCell shapes(mesh);

    octree<octreeDataCell> oc
    (
        shiftedBb,  // overall bounding box
        shapes,     // all information needed to do checks on cells
        1,          // min. levels
        10.0,       // max. size of leaves
        10.0        // maximum ratio of cubes v.s. cells
    );

    Info<< "Point:" << sample << " is in shape "
        << oc.find(sample) << endl;
    Info<< "Point:" << sample << " is in cell  "
        << mesh.findCell(sample) << endl;


    oc.printStats(Info);


    Info<< "End\n" << endl;

    return 0;
}


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