FineCoarseMeshPair.hpp

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*/

#ifndef FINECOARSEMESHPAIR_HPP_
#define FINECOARSEMESHPAIR_HPP_

#include "AbstractTetrahedralMesh.hpp"
#include "BoxCollection.hpp"
#include "QuadraturePointsGroup.hpp"
#include "GaussianQuadratureRule.hpp"
#include "Warnings.hpp"
#include "CommandLineArguments.hpp"

template<unsigned DIM>
struct ElementAndWeights
{
    unsigned ElementNum; 
    c_vector<double, DIM+1> Weights; 
};

template <unsigned DIM>
class FineCoarseMeshPair
{
friend class TestFineCoarseMeshPair;

private:

    AbstractTetrahedralMesh<DIM,DIM>& mrFineMesh;

    AbstractTetrahedralMesh<DIM,DIM>& mrCoarseMesh;

    BoxCollection<DIM>* mpFineMeshBoxCollection;

    BoxCollection<DIM>* mpCoarseMeshBoxCollection;

    std::vector<ElementAndWeights<DIM> > mFineMeshElementsAndWeights;

    std::vector<unsigned> mNotInMesh;

    std::vector<c_vector<double,DIM+1> > mNotInMeshNearestElementWeights;

    std::vector<unsigned> mStatisticsCounters;

    std::vector<unsigned> mCoarseElementsForFineNodes;

    std::vector<unsigned> mCoarseElementsForFineElementCentroids;

    void ComputeFineElementAndWeightForGivenPoint(ChastePoint<DIM>& rPoint,
                                                  bool safeMode,
                                                  unsigned boxForThisPoint,
                                                  unsigned index);

    unsigned ComputeCoarseElementForGivenPoint(ChastePoint<DIM>& rPoint,
                                               bool safeMode,
                                               unsigned boxForThisPoint);

    void SetUpBoxes(AbstractTetrahedralMesh<DIM,DIM>& rMesh,
                    double boxWidth,
                    BoxCollection<DIM>*& rpBoxCollection);

    void CollectElementsInContainingBox(BoxCollection<DIM>*& rpBoxCollection,
                                        unsigned boxIndex,
                                        std::set<unsigned>& rElementIndices);
    void CollectElementsInLocalBoxes(BoxCollection<DIM>*& rpBoxCollection,
                                     unsigned boxIndex,
                                     std::set<unsigned>& rElementIndices);

    void ResetStatisticsVariables();

public:

    FineCoarseMeshPair(AbstractTetrahedralMesh<DIM,DIM>& rFineMesh, AbstractTetrahedralMesh<DIM,DIM>& rCoarseMesh);

    ~FineCoarseMeshPair();

    void SetUpBoxesOnFineMesh(double boxWidth = -1);

    void SetUpBoxesOnCoarseMesh(double boxWidth = -1);

    void ComputeFineElementsAndWeightsForCoarseQuadPoints(GaussianQuadratureRule<DIM>& rQuadRule,
                                                          bool safeMode);

    void ComputeFineElementsAndWeightsForCoarseNodes(bool safeMode);

    void PrintStatistics();

    void ComputeCoarseElementsForFineNodes(bool safeMode);

    void ComputeCoarseElementsForFineElementCentroids(bool safeMode);

    std::vector<ElementAndWeights<DIM> >& rGetElementsAndWeights()
    {
        return mFineMeshElementsAndWeights;
    }

    std::vector<unsigned>& rGetCoarseElementsForFineNodes()
    {
        assert(mCoarseElementsForFineNodes.size() > 0);
        return mCoarseElementsForFineNodes;
    }

    std::vector<unsigned>& rGetCoarseElementsForFineElementCentroids()
    {
        assert(mCoarseElementsForFineElementCentroids.size() > 0);
        return mCoarseElementsForFineElementCentroids;
    }

    void DeleteFineBoxCollection();

    void DeleteCoarseBoxCollection();

    const AbstractTetrahedralMesh<DIM, DIM>& GetFineMesh() const;

    const AbstractTetrahedralMesh<DIM, DIM>& GetCoarseMesh() const;

};

#endif /*FINECOARSEMESHPAIR_HPP_*/