polyMeshGenAddressingPointCells.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | cfMesh: A library for mesh generation
   \\    /   O peration     |
    \\  /    A nd           | Copyright held by the original author
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of cfMesh.
 
    cfMesh 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.
 
    cfMesh 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 cfMesh.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "polyMeshGenAddressing.H"
#include "VRWGraphSMPModifier.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void polyMeshGenAddressing::calcPointCells() const
{
    if( pcPtr_ )
    {
        FatalErrorIn("polyMeshGenAddressing::calcPointCells() const")
            << "pointCells already calculated"
            << abort(FatalError);
    }
    else
    {
        const VRWGraph& cellPoints = this->cellPoints();
 
        //- create the storage
        pcPtr_ = new VRWGraph();
        VRWGraph& pointCellAddr = *pcPtr_;
 
        VRWGraphSMPModifier(pointCellAddr).reverseAddressing(cellPoints);
        pointCellAddr.setSize(mesh_.points().size());
    }
}
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
const VRWGraph& polyMeshGenAddressing::pointCells() const
{
    if( !pcPtr_ )
    {
        # ifdef USE_OMP
        if( omp_in_parallel() )
            FatalErrorIn
            (
                "const VRWGraph& polyMeshGenAddressing::pointCells() const"
            ) << "Calculating addressing inside a parallel region."
                << " This is not thread safe" << exit(FatalError);
        # endif
 
        calcPointCells();
    }
 
    return *pcPtr_;
}
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //