writeDX.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
    OpenDX format. Both data-only and scalar/vector data.
 
\*---------------------------------------------------------------------------*/
 
#include "triSurface.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
// Geometry (positions + connections)
// writeSorted: sort acc. to patch
void triSurface::writeDXGeometry
(
    const bool writeSorted,
    Ostream& os
) const
{
    labelList faceMap;
    surfacePatchList myPatches(calcPatches(faceMap));
 
    // Print patch names as comment
    os  << "# Patches:" << endl;
    forAll(myPatches, patchI)
    {
        os  << "#     " << patchI << "    "
            << myPatches[patchI].name() << endl;
    }
    os << endl << endl;
 
    // Write vertex coordinates
 
    os  << "# The irregular positions" << endl
        << "object 1 class array type float rank 1 shape 3 items "
        << nPoints() << " data follows" << endl;
    forAll(localPoints(), pointI)
    {
        const point& pt = localPoints()[pointI];
        os << pt.x() << ' ' << pt.y() << ' ' << pt.z() << endl;
    }
    os  << endl;
 
    os  << "# The irregular connections (triangles)" << endl
        << "object 2 class array type int rank 1 shape 3 items "
        << size() << " data follows" << endl;
 
    if (writeSorted)
    {
        label faceIndex = 0;
 
        forAll(myPatches, patchI)
        {
            // Print all faces belonging to this patch
 
            for
            (
                label patchFaceI = 0;
                patchFaceI < myPatches[patchI].size();
                patchFaceI++
            )
            {
                const label faceI = faceMap[faceIndex++];
 
                const labelledTri& f = localFaces()[faceI];
 
                os << f[0] << ' ' << f[1] << ' ' << f[2] << endl;
            }
        }
    }
    else
    {
        forAll(*this, faceI)
        {
            const labelledTri& f = localFaces()[faceI];
 
            os << f[0] << ' ' << f[1] << ' ' << f[2] << endl;
        }
    }
    os << "attribute \"element type\" string \"triangles\"" << endl
       << "attribute \"ref\" string \"positions\"" << endl << endl;
}
 
 
// Standard trailer
void triSurface::writeDXTrailer(Ostream& os) const
{
    os  << "# the field, with three components: \"positions\", \"connections\""
        << ", and \"data\"" << endl
        << "object \"irregular positions irregular connections\" class field"
        << endl
        << "component \"positions\" value 1" << endl
        << "component \"connections\" value 2" << endl
        << "component \"data\" value 3" << endl;
}
 
 
// Geometry only (data field is either faceIndex or patchIndex)
void triSurface::writeDX(const bool writeSorted, Ostream& os) const
{
    writeDXGeometry(writeSorted, os);
 
    os  << "object 3 class array type float rank 0 items " << size()
        << " data follows" << endl;
    if (writeSorted)
    {
        // Write patch number as data
 
        labelList faceMap;
        surfacePatchList myPatches(calcPatches(faceMap));
 
        forAll(myPatches, patchI)
        {
            forAll(myPatches[patchI], patchFaceI)
            {
                os << patchI << endl;
            }
        }
    }
    else
    {
        // Write face number as data
 
        forAll(*this, faceI)
        {
            os << faceI << endl;
        }
    }
 
    os  << endl << "attribute \"dep\" string \"connections\"" << endl << endl;
 
    writeDXTrailer(os);
 
    os << "end" << endl;
}
 
 
// Geometry + scalar data
void triSurface::writeDX(const scalarField& field, Ostream& os) const
{
    writeDXGeometry(false, os);
 
    if (field.size() == size())
    {
        // Connections dependent data
        os  << "object 3 class array type float rank 0 items " << field.size()
            << " data follows" << endl;
        forAll(field, faceI)
        {
            os << field[faceI] << endl;
        }
        os  << endl
            << "attribute \"dep\" string \"connections\"" << endl << endl;
    }
    else if (field.size() == nPoints())
    {
        // Positions dependent data
        os  << "object 3 class array type float rank 0 items " << field.size()
            << " data follows" << endl;
        forAll(field, pointI)
        {
            os << field[pointI] << endl;
        }
        os  << endl
            << "attribute \"dep\" string \"positions\"" << endl << endl;
    }
    else
    {
        FatalErrorIn
        (
            "writeDX(const scalarField&, Ostream&)"
        )   << "Illegal field size " << field.size() << " is not equal "
            << " to number of faces " << size() << " or to number "
            << " of points " << nPoints() << exit(FatalError);
    }
 
    writeDXTrailer(os);
 
    os << "end" << endl;
}
 
 
// Geometry + vector data
void triSurface::writeDX(const vectorField& field, Ostream& os) const
{
    writeDXGeometry(false, os);
 
    if (field.size() == size())
    {
        // Connections dependent data
        os  << "object 3 class array type float rank 1 shape 3 items "
            << field.size() << " data follows" << endl;
        forAll(field, faceI)
        {
            os  << field[faceI].x() << ' '
                << field[faceI].y() << ' '
                << field[faceI].z() << endl;
        }
        os  << endl
            << "attribute \"dep\" string \"connections\"" << endl << endl;
    }
    else if (field.size() == nPoints())
    {
        // Positions dependent data
        os  << "object 3 class array type float rank 1 shape 3 items "
            << field.size() << " data follows" << endl;
        forAll(field, pointI)
        {
            os  << field[pointI].x() << ' '
                << field[pointI].y() << ' '
                << field[pointI].z() << endl;
        }
        os  << endl
            << "attribute \"dep\" string \"positions\"" << endl << endl;
    }
    else
    {
        FatalErrorIn
        (
            "writeDX(const vectorField&, Ostream&)"
        )   << "Illegal field size " << field.size() << " is not equal "
            << " to number of faces " << size() << " or to number "
            << " of points " << nPoints() << exit(FatalError);
    }
 
    writeDXTrailer(os);
 
    os << "end" << endl;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //