VoronoiVertexMeshGenerator.hpp

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*/

#ifndef VORONOIVERTEXMESHGENERATOR_HPP_
#define VORONOIVERTEXMESHGENERATOR_HPP_

#include <cmath>
#include <vector>

#include "MutableVertexMesh.hpp"
#include "Toroidal2dVertexMesh.hpp"
#include "RandomNumberGenerator.hpp"

#include <boost/version.hpp>

#if BOOST_VERSION >= 105200
#include "boost/polygon/voronoi.hpp"

class VoronoiVertexMeshGenerator
{
    friend class TestVoronoiVertexMeshGenerator;

protected:

    MutableVertexMesh<2,2>* mpMesh;

    Toroidal2dVertexMesh* mpTorMesh;

    unsigned mNumElementsX;

    unsigned mNumElementsY;

    unsigned mTotalNumElements;

    unsigned mNumRelaxationSteps;

    unsigned mMaxNumElems;

    int mMaxIntX;

    int mMaxIntY;

    double mElementTargetArea;

    double mMultiplierInX;

    double mMultiplierInY;

    double mSamplingMultiplier;

    double mTol;

    unsigned mMaxExpectedNumSidesPerPolygon;

    std::vector<c_vector<double, 2> > GetInitialPointLocations();

    std::vector<c_vector<double, 2> > GetElementCentroidsFromMesh();

    void CreateVoronoiTessellation(std::vector<c_vector<double, 2> >& rSeedLocations);

    void ValidateInputAndSetMembers();

    void ValidateSeedLocations(std::vector<c_vector<double, 2> >& rSeedLocations);

    bool CheckForCongruentNodes(MutableVertexMesh<2,2>* pMesh, double width, double height);

public:

    VoronoiVertexMeshGenerator(unsigned numElementsX,
                               unsigned numElementsY,
                               unsigned numRelaxationSteps,
                               double elementTargetArea=1.0);

    VoronoiVertexMeshGenerator()
    {
    }

    virtual ~VoronoiVertexMeshGenerator();

    void GenerateVoronoiMesh();

    virtual MutableVertexMesh<2,2>* GetMesh();

    virtual MutableVertexMesh<2,2>* GetMeshAfterReMesh();

    virtual Toroidal2dVertexMesh* GetToroidalMesh();

    std::vector<double> GetPolygonDistribution();

    double GetAreaCoefficientOfVariation();

    void RefreshSeedsAndRegenerateMesh();

    void SetMaxExpectedNumSidesPerPolygon(unsigned maxExpectedNumSidesPerPolygon);

    unsigned GetMaxExpectedNumSidesPerPolygon();
};

#endif // BOOST_VERSION >= 105200

#if BOOST_VERSION < 105200

class VoronoiVertexMeshGenerator
{
public:

    VoronoiVertexMeshGenerator();
};

#endif // BOOST_VERSION < 105200

#endif /*VORONOIVERTEXMESHGENERATOR_HPP_*/