BoxCollection.hpp

/*

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*/
#ifndef BOXCOLLECTION_HPP_
#define BOXCOLLECTION_HPP_

#include "Node.hpp"
#include "Element.hpp"
#include "Box.hpp"
#include <map>

template<unsigned DIM>
class BoxCollection
{
private:
    friend class TestBoxCollection;

    std::vector< Box<DIM> > mBoxes;

    c_vector<double, 2*DIM> mDomainSize;

    double mBoxWidth;

    c_vector<unsigned, DIM> mNumBoxesEachDirection;

    std::vector< std::set<unsigned> > mLocalBoxes;

    c_vector<bool, DIM> mIsDomainPeriodic;

    static const double msFudge;

    unsigned GetLinearIndex(c_vector<int,DIM> gridIndices);

    c_vector<int,DIM> GetGridIndices(unsigned linearIndex);

    bool IsBoxInDomain(c_vector<int,DIM> gridIndices);

    c_vector<bool,DIM> IsIndexPenultimate(c_vector<int,DIM> gridIndices);

    void SetupLocalBoxes(std::vector<c_vector<int, DIM> > neighbours);

public:

    BoxCollection(double boxWidth,
                  c_vector<double, 2*DIM> domainSize,
                  bool isPeriodicInX = false,
                  bool isPeriodicInY = false,
                  bool isPeriodicInZ = false);

    void EmptyBoxes();

    unsigned CalculateContainingBox(Node<DIM>* pNode);

    unsigned CalculateContainingBox(c_vector<double, DIM>& rLocation);

    Box<DIM>& rGetBox(unsigned boxIndex);

    unsigned GetNumBoxes();

    void SetupLocalBoxesHalfOnly();

    void SetupAllLocalBoxes();

    std::set<unsigned> GetLocalBoxes(unsigned boxIndex);

    const c_vector<double, 2*DIM>& rGetDomainSize() const;

    void CalculateNodePairs(std::vector<Node<DIM>*>& rNodes,
                            std::vector<std::pair<Node<DIM>*, Node<DIM>*> >& rNodePairs,
                            std::map<unsigned, std::set<unsigned> >& rNodeNeighbours);
};

#endif /*BOXCOLLECTION_HPP_*/