HGridOptimiser.h

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//Copyright (c) 2013-2014, The MercuryDPM Developers Team. All rights reserved.
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#ifndef HGRIDOptimiser_H
#define HGRIDOptimiser_H

#include <vector>
#include "HGRID_base.h"

class HGridOptimiser
{
  public:
    void Initialise(HGRID_base& problem, int verbosity);
    int radius2Cell(double r);
    double cell2Min(int i);
    double cell2Max(int i);
    double pdfInt(double start, double end, int power);
    double diffPdfInt(double x, int power);
    double expectedCellsIntegral(double start, double end, int p, double h);
    double diffStartExpectedCellsIntegral(double start, double end, int p, double h);
    double diffEndExpectedCellsIntegral(double start, double end, int p, double h);
    double diffHExpectedCellsIntegral(double start, double end, int p, double h);
    double calculateWork(std::vector<double>& hGridCellSizes, HGridMethod method, int verbosity);
    void calculateDiffWork(std::vector<double>& hGridCellSizes, std::vector<double>& dfdx, HGridMethod method, int verbosity);
    void calcDfDx(std::vector<double>& hGridCellSizes, std::vector<double>& dfdx, HGridMethod method, int verbosity);
    double checkLimit(std::vector<double>& hGridCellSizes, std::vector<double>& dfdx, int verbosity);
    void applyStep(std::vector<double>& hGridCellSizes, std::vector<double>& dfdx, double stepsize, int verbosity);
    double goldenSectionSearch(std::vector<double>& startHGridCellSizes, std::vector<double>& searchDirection, double min, double cur, double max, HGridMethod method, int verbosity);
    void getOptimalDistribution(std::vector<double>& hGridCellSizes, int numberOfLevels, HGridMethod method, int verbosity);
    

  private:
    int NCells, NParticles;
    double rMin;
    double rMax;
    double length;
    double k;
    int dimension;
    std::vector<int> CellN;
};

#endif