VoronoiVertexMeshGenerator.hpp

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*/
 
#ifndef VORONOIVERTEXMESHGENERATOR_HPP_
#define VORONOIVERTEXMESHGENERATOR_HPP_
 
#include <cmath>
#include <vector>
 
#include <boost/shared_ptr.hpp>
#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:
 
    boost::shared_ptr<MutableVertexMesh<2,2> > mpMesh;
 
    boost::shared_ptr<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() = default;
 
    void GenerateVoronoiMesh();
 
    virtual boost::shared_ptr<MutableVertexMesh<2,2> > GetMesh();
 
    virtual boost::shared_ptr<MutableVertexMesh<2,2> > GetMeshAfterReMesh();
 
    virtual boost::shared_ptr<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_*/