writeOBJ.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     3.2
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
    This file is part of foam-extend.
 
    foam-extend 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.
 
    foam-extend 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 foam-extend.  If not, see <http://www.gnu.org/licenses/>.
 
Description
    Lightwave OBJ format.
 
    Note: Java obj loader does not support '#' on line
 
\*---------------------------------------------------------------------------*/
 
#include "triSurface.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void triSurface::writeOBJ(const bool writeSorted, Ostream& os) const
{
    // Write header
    os  << "# Wavefront OBJ file" << endl
        << "# Regions:" << endl;
 
    labelList faceMap;
 
    surfacePatchList myPatches(calcPatches(faceMap));
 
    const pointField& ps = points();
 
    // Print patch names as comment
    forAll(myPatches, patchI)
    {
        os  << "#     " << patchI << "    "
            << myPatches[patchI].name() << endl;
    }
    os  << "#" << endl;
 
    os  << "# points    : " << ps.size() << endl
        << "# triangles : " << size() << endl
        << "#" << endl;
 
 
    // Write vertex coords
    forAll(ps, pointi)
    {
        os  << "v "
            << ps[pointi].x() << ' '
            << ps[pointi].y() << ' '
            << ps[pointi].z() << endl;
    }
 
    if (writeSorted)
    {
        label faceIndex = 0;
 
        forAll(myPatches, patchI)
        {
            // Print all faces belonging to this patch
 
            os << "g " << myPatches[patchI].name() << endl;
 
            for
            (
                label patchFaceI = 0;
                patchFaceI < myPatches[patchI].size();
                patchFaceI++
            )
            {
                const label faceI = faceMap[faceIndex++];
 
                os  << "f "
                    << operator[](faceI)[0] + 1 << ' '
                    << operator[](faceI)[1] + 1 << ' '
                    << operator[](faceI)[2] + 1
                    //<< "  # " << operator[](faceI).region()
                    << endl;
            }
        }
    }
    else
    {
        forAll(*this, faceI)
        {
            os  << "f "
                << operator[](faceI)[0] + 1 << ' '
                << operator[](faceI)[1] + 1 << ' '
                << operator[](faceI)[2] + 1
                //<< "  # " << operator[](faceI).region()
                << endl;
        }
    }
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //