tetMeshOptimisation.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | cfMesh: A library for mesh generation
   \\    /   O peration     |
    \\  /    A nd           | Author: Franjo Juretic (franjo.juretic@c-fields.com)
     \\/     M anipulation  | Copyright (C) Creative Fields, Ltd.
-------------------------------------------------------------------------------
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/>.
 
Class
    tetMeshOptimisation
 
Description
    Mesh smoothing without any topological changes
 
SourceFiles
    tetMeshOptimisation.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef tetMeshOptimisation_H
#define tetMeshOptimisation_H
 
#include "DynList.H"
#include "parPartTet.H"
#include "boundBox.H"
#include "labelLongList.H"
#include "boolList.H"
 
#include <map>
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declarations
class partTetMesh;
class meshSurfaceEngine;
 
/*---------------------------------------------------------------------------*\
                    Class tetMeshOptimisation Declaration
\*---------------------------------------------------------------------------*/
 
class tetMeshOptimisation
{
    // Private data
        //- reference to the tet mesh
        partTetMesh& tetMesh_;
 
    // Private member functions needed for parallel runs
        //- make sure that all processors have the same points
        //- marked as negativeNode
        void unifyNegativePoints(boolList& negativeNode) const;
 
        //- exchange data with other processors
        void exchangeData
        (
            std::map<label, DynList<parPartTet> >& m,
            boolList* negativeNodePtr = NULL
        );
 
        //- update buffer layer points
        void updateBufferLayerPoints();
 
        //- make sure that coordinates of moved points remain the same
        //- on all processor containing those points
        void unifyCoordinatesParallel(const boolList* negativeNodePtr = NULL);
 
public:
 
    // Constructors
 
        //- Construct from tet mesh
        tetMeshOptimisation(partTetMesh& mesh);
 
 
    // Destructor
 
        ~tetMeshOptimisation();
 
    // Member Functions
        //- untangle mesh by using Patrik Knupp's simple metric
        void optimiseUsingKnuppMetric(const label nInterations = 5);
 
        //- smooth using mesh untangler
        void optimiseUsingMeshUntangler( const label nIerations = 5);
 
        //- smooth using volume optimizer
        void optimiseUsingVolumeOptimizer(const label nIterations = 10);
 
        //- smooth boundary using the volume optimizer
        void optimiseBoundaryVolumeOptimizer
        (
            const label nIterations = 3,
            const bool nonShrinking = false
        );
 
        //- smooth boundary using shrinking surface laplace
        void optimiseBoundarySurfaceLaplace(const label nIterations = 3);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //