OffLatticeRandomFieldGenerator.hpp

/*
 
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*/
 
#ifndef OFF_LATTICE_RANDOM_FIELD_GENERATOR_HPP_
#define OFF_LATTICE_RANDOM_FIELD_GENERATOR_HPP_
 
#include <array>
#include <memory>
#include <vector>
 
#include "ChasteSerialization.hpp"
#include "Node.hpp"
#include "ObsoleteBoxCollection.hpp"
#include "UblasVectorInclude.hpp"
 
#include "OpenSimplex2S.hpp"
 
template<unsigned SPACE_DIM>
class OffLatticeRandomFieldGenerator
{
private:
 
    friend class boost::serialization::access;
    friend class TestOffLatticeRandomFieldGenerator;
 
    std::array<double, SPACE_DIM> mLowerCorner;
 
    std::array<double, SPACE_DIM> mUpperCorner;
 
    std::array<bool, SPACE_DIM> mPeriodicity;
 
    double mLengthScale;
 
    std::unique_ptr<ObsoleteBoxCollection<SPACE_DIM>> mpBoxCollection;
 
    unsigned mNumNodesAtLastUpdate;
 
    template<class Archive>
    void serialize(Archive & archive, const unsigned int version)
    {
        archive & mLowerCorner;
        archive & mUpperCorner;
        archive & mPeriodicity;
        archive & mLengthScale;
    }
 
    OpenSimplex2S mOpenSimplex;
 
public:
 
    OffLatticeRandomFieldGenerator(std::array<double, SPACE_DIM> lowerCorner,
                                   std::array<double, SPACE_DIM> upperCorner,
                                   std::array<bool, SPACE_DIM> periodicity,
                                   double lengthScale,
                                   double boxWidth=DOUBLE_UNSET);
 
    virtual ~OffLatticeRandomFieldGenerator() = default;
 
    std::vector<double> SampleRandomField(const std::vector<Node<SPACE_DIM>*>& rNodes);
 
    std::vector<double> SampleRandomFieldAtTime(const std::vector<Node<SPACE_DIM>*>& rNodes, double time);
 
    void SetRandomSeed(const unsigned seed);
};
 
#endif /*OFF_LATTICE_RANDOM_FIELD_GENERATOR_HPP_*/