File: surfaceMeshInfo.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
     \\/     M anipulation  | Copyright (C) 2016 OpenCFD Ltd.
-------------------------------------------------------------------------------
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/>.

Application
    surfaceMeshInfo

Group
    grpSurfaceUtilities

Description
    Miscellaneous information about surface meshes.
    To simplify parsing of the output, the normal banner information
    is suppressed.

Usage
    \b surfaceMeshInfo surfaceFile [OPTION]

    Options:
      - \par -areas
        Report area for each face.

      - \par -scale \<scale\>
        Specify a scaling factor when reading files.

      - \par -xml
        Write output in XML format.

Note
    The filename extensions are used to determine the file format type.

    The XML-like output can be useful for extraction with other tools,
    but either output format can be easily extracted with a simple sed
    command:
    \verbatim
        surfaceMeshInfo surfaceFile -areas | \
            sed -ne '/areas/,/:/{ /:/!p }'

        surfaceMeshInfo surfaceFile -areas -xml | \
            sed -ne '/<areas/,/</{ /</!p }'
    \endverbatim

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

#include "argList.H"
#include "profiling.H"
#include "Time.H"

#include "UnsortedMeshedSurfaces.H"

using namespace Foam;


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

int main(int argc, char *argv[])
{
    argList::addNote
    (
        "Information about surface meshes"
    );

    argList::noBanner();
    argList::noParallel();
    argList::addArgument("surface", "The input surface file");

    argList::addOption
    (
        "scale",
        "factor",
        "Input geometry scaling factor"
    );
    argList::addBoolOption
    (
        "areas",
        "Display area of each face"
    );
    argList::addBoolOption
    (
        "xml",
        "Write output in XML format"
    );
    profiling::disable(); // Disable profiling (and its output)

    argList args(argc, argv);
    Time runTime(args.rootPath(), args.caseName());

    const fileName importName = args[1];

    // check that reading is supported
    if (!UnsortedMeshedSurface<face>::canRead(importName, true))
    {
        return 1;
    }

    const bool writeXML = args.found("xml");
    const bool writeAreas = args.found("areas");


    // use UnsortedMeshedSurface, not MeshedSurface to maintain ordering
    UnsortedMeshedSurface<face> surf(importName);

    const scalar scaling = args.opt<scalar>("scale", -1);
    if (scaling > 0)
    {
        DetailInfo << " -scale " << scaling << nl;
        surf.scalePoints(scaling);
    }

    scalar areaTotal = 0;

    if (writeXML)
    {
        Info<<"<?xml version='1.0' encoding='utf-8'?>" << nl
            <<"<surfaceMeshInfo>" << nl
            << "<npoints>" << surf.nPoints() << "</npoints>" << nl
            << "<nfaces>"  << surf.size() << "</nfaces>" << nl;

        if (writeAreas)
        {
            Info<<"<areas size='" << surf.size() << "'>" << nl;
        }
    }
    else
    {
        Info<< "nPoints   : " << surf.nPoints() << nl
            << "nFaces    : " << surf.size() << nl;

        if (writeAreas)
        {
            Info<< "areas     : " << nl;
        }
    }

    forAll(surf, facei)
    {
        const scalar fArea(surf[facei].mag(surf.points()));
        areaTotal += fArea;

        if (writeAreas)
        {
            Info<< fArea << nl;
        }
    }

    if (writeXML)
    {
        if (writeAreas)
        {
            Info<<"</areas>" << nl;
        }

        Info<< "<area>" << areaTotal << "</area>" << nl
            << "</surfaceMeshInfo>" << nl;
    }
    else
    {
        Info<< "area      : " << areaTotal << nl;
    }

    return 0;
}

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