cellLooper.C

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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2019-2021 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
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#include "cellLooper.H"
#include "polyMesh.H"
#include "ListOps.H"
#include "meshTools.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    defineTypeNameAndDebug(cellLooper, 0);
    defineRunTimeSelectionTable(cellLooper, word);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
Foam::autoPtr<Foam::cellLooper> Foam::cellLooper::New
(
    const word& type,
    const polyMesh& mesh
)
{
    auto* ctorPtr = wordConstructorTable(type);
 
    if (!ctorPtr)
    {
        FatalErrorInLookup
        (
            "cellLooper",
            type,
            *wordConstructorTablePtr_
        ) << exit(FatalError);
    }
 
    return autoPtr<cellLooper>(ctorPtr(mesh));
}
 
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
Foam::labelList Foam::cellLooper::getVertFacesNonEdge
(
    const label celli,
    const label edgeI,
    const label vertI
) const
{
    // Get faces connected to startEdge
    label face0, face1;
    meshTools::getEdgeFaces(mesh(), celli, edgeI, face0, face1);
 
    const labelList& pFaces = mesh().pointFaces()[vertI];
 
    labelList vertFaces(pFaces.size());
    label vertFacei = 0;
 
    forAll(pFaces, pFacei)
    {
        label facei = pFaces[pFacei];
 
        if
        (
            (facei != face0)
         && (facei != face1)
         && (meshTools::faceOnCell(mesh(), celli, facei))
        )
        {
            vertFaces[vertFacei++] = facei;
        }
    }
    vertFaces.setSize(vertFacei);
 
    return vertFaces;
}
 
 
Foam::label Foam::cellLooper::getFirstVertEdge
(
    const label facei,
    const label vertI
) const
{
    const labelList& fEdges = mesh().faceEdges()[facei];
 
    forAll(fEdges, fEdgeI)
    {
        label edgeI = fEdges[fEdgeI];
 
        const edge& e = mesh().edges()[edgeI];
 
        if ((e.start() == vertI) || (e.end() == vertI))
        {
            return edgeI;
        }
    }
 
    FatalErrorInFunction
        << "Can not find edge on face " << facei
        << " using vertex " << vertI
        << abort(FatalError);
 
    return -1;
}
 
 
Foam::labelList Foam::cellLooper::getVertEdgesNonFace
(
    const label celli,
    const label facei,
    const label vertI
) const
{
    const labelList& exclEdges = mesh().faceEdges()[facei];
 
    const labelList& pEdges = mesh().pointEdges()[vertI];
 
    labelList vertEdges(pEdges.size());
    label vertEdgeI = 0;
 
    forAll(pEdges, pEdgeI)
    {
        label edgeI = pEdges[pEdgeI];
 
        if
        (
            !exclEdges.found(edgeI)
         && meshTools::edgeOnCell(mesh(), celli, edgeI)
        )
        {
            vertEdges[vertEdgeI++] = edgeI;
        }
    }
 
    vertEdges.setSize(vertEdgeI);
 
    return vertEdges;
}
 
 
Foam::label Foam::cellLooper::getMisAlignedEdge
(
    const vector& refDir,
    const label celli
) const
{
    const labelList& cEdges = mesh().cellEdges()[celli];
 
    label cutEdgeI = -1;
    scalar maxCos = -GREAT;
 
    forAll(cEdges, cEdgeI)
    {
        label edgeI = cEdges[cEdgeI];
 
        scalar cosAngle = mag(refDir & meshTools::normEdgeVec(mesh(), edgeI));
 
        if (cosAngle > maxCos)
        {
            maxCos = cosAngle;
 
            cutEdgeI = edgeI;
        }
    }
 
    return cutEdgeI;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::cellLooper::cellLooper(const polyMesh& mesh)
:
    edgeVertex(mesh)
{}
 
 
// ************************************************************************* //