foamVtkWriteFaceSet.C

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2017-2019 OpenCFD Ltd.
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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.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "foamVtkWriteTopoSet.H"
#include "foamVtkIndPatchWriter.H"
#include "polyMesh.H"
#include "faceSet.H"
#include "globalIndex.H"
 
// * * * * * * * * * * * * * * * Global Functions  * * * * * * * * * * * * * //
 
bool Foam::vtk::writeFaceSet
(
    const polyMesh& mesh,
    const faceSet& set,
    const vtk::outputOptions opts,
    const fileName& file,
    bool parallel
)
{
    typedef IndirectList<face> FaceListType;
 
    indirectPrimitivePatch pp
    (
        FaceListType(mesh.faces(), labelList()),
        mesh.points()
    );
    FaceListType& faces = pp;
 
    // Use the faces from faceSet
    faces.addressing() = set.sortedToc();
 
    //-------------------------------------------------------------------------
 
    indirectPatchWriter writer(pp, opts);
 
    writer.open(file, parallel);
 
    writer.beginFile(set.name());
    writer.writeGeometry();
 
 
    // CellData - faceID only
    {
        writer.beginCellData(1);
 
        labelField faceValues(faces.addressing());
 
        // processor-local faceID offset
        const label faceIdOffset =
        (
            writer.parallel() ? globalIndex(mesh.nFaces()).localStart() : 0
        );
 
        if (faceIdOffset)
        {
            faceValues += faceIdOffset;
        }
 
        writer.write("faceID", faceValues);
 
        // End CellData/PointData is implicit
    }
 
    writer.close();
 
    return true;
}
 
 
// ************************************************************************* //