primitiveMeshCellEdges.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/>.
 
\*---------------------------------------------------------------------------*/
 
#include "primitiveMesh.H"
#include "DynamicList.H"
#include "ListOps.H"
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::primitiveMesh::calcCellEdges() const
{
    // Loop through all faces and mark up cells with edges of the face.
    // Check for duplicates
 
    if (debug)
    {
        Pout<< "primitiveMesh::calcCellEdges() : "
            << "calculating cellEdges"
            << endl;
 
        if (debug == -1)
        {
            // For checking calls:abort so we can quickly hunt down
            // origin of call
            FatalErrorIn("primitiveMesh::calcCellEdges()")
                << abort(FatalError);
        }
    }
 
    // It is an error to attempt to recalculate cellEdges
    // if the pointer is already set
    if (cePtr_)
    {
        FatalErrorIn("primitiveMesh::calcCellEdges() const")
            << "cellEdges already calculated"
            << abort(FatalError);
    }
    else
    {
        // Set up temporary storage
        List<DynamicList<label, edgesPerCell_> > ce(nCells());
 
 
        // Get reference to faceCells and faceEdges
        const labelList& own = faceOwner();
        const labelList& nei = faceNeighbour();
        const labelListList& fe = faceEdges();
 
        // loop through the list again and add edges; checking for duplicates
        forAll (own, faceI)
        {
            DynamicList<label, edgesPerCell_>& curCellEdges = ce[own[faceI]];
 
            const labelList& curEdges = fe[faceI];
 
            forAll (curEdges, edgeI)
            {
                if (findIndex(curCellEdges, curEdges[edgeI]) == -1)
                {
                    // Add the edge
                    curCellEdges.append(curEdges[edgeI]);
                }
            }
        }
 
        forAll (nei, faceI)
        {
            DynamicList<label, edgesPerCell_>& curCellEdges = ce[nei[faceI]];
 
            const labelList& curEdges = fe[faceI];
 
            forAll (curEdges, edgeI)
            {
                if (findIndex(curCellEdges, curEdges[edgeI]) == -1)
                {
                    // add the edge
                    curCellEdges.append(curEdges[edgeI]);
                }
            }
        }
 
        cePtr_ = new labelListList(ce.size());
        labelListList& cellEdgeAddr = *cePtr_;
 
        // reset the size
        forAll (ce, cellI)
        {
            cellEdgeAddr[cellI].transfer(ce[cellI]);
        }
    }
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
const Foam::labelListList& Foam::primitiveMesh::cellEdges() const
{
    if (!cePtr_)
    {
        calcCellEdges();
    }
 
    return *cePtr_;
}
 
 
// ************************************************************************* //