PrimitivePatchBdryFaces.C

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    Copyright (C) 2021 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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#include "PrimitivePatch.H"
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class FaceList, class PointField>
Foam::labelList
Foam::PrimitivePatch<FaceList, PointField>::boundaryFaces() const
{
    labelList bndFaces(nBoundaryEdges());
 
    // The boundary slice
    const SubList<labelList> bndEdgeToFace
    (
        edgeFaces(),
        bndFaces.size(),
        nInternalEdges()
    );
 
    // By definition boundary edges have a _single_ face attached
    forAll(bndFaces, i)
    {
        bndFaces[i] = bndEdgeToFace[i][0];
    }
 
    return bndFaces;
}
 
 
template<class FaceList, class PointField>
Foam::labelList
Foam::PrimitivePatch<FaceList, PointField>::uniqBoundaryFaces() const
{
    labelList bndFaces(this->boundaryFaces());
 
    const label len = bndFaces.size();
 
    if (len > 1)
    {
        Foam::sort(bndFaces);
 
        label prev = bndFaces[0];
        label nUniq = 1;
 
        for (label i=1; i < len; ++i)
        {
            if (prev != bndFaces[i])
            {
                prev = bndFaces[i];
                bndFaces[nUniq] = prev;
                ++nUniq;
            }
        }
 
        bndFaces.resize(nUniq);
    }
 
    return bndFaces;
}
 
 
// ************************************************************************* //