DiscreteSystemForceCalculator.hpp

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*/

#ifndef DISCRETESYSTEMFORCECALCULATOR_HPP_
#define DISCRETESYSTEMFORCECALCULATOR_HPP_

#include "AbstractTwoBodyInteractionForce.hpp"
#include "MeshBasedCellPopulation.hpp"

class DiscreteSystemForceCalculator
{
    friend class TestDiscreteSystemForceCalculator;

private:

    MeshBasedCellPopulation<2>& mrCellPopulation;

    std::vector<boost::shared_ptr<AbstractTwoBodyInteractionForce<2> > > mForceCollection;

    double mEpsilon;

    out_stream mpVizStressResultsFile;

    std::vector<double> CalculateFtAndFn(unsigned index, double theta);

    std::vector<double> GetSamplingAngles(unsigned index);

    double GetLocalExtremum(unsigned index, double angle1, double angle2);

    std::vector<double> GetExtremalAngles(unsigned index, std::vector<double> samplingAngles);

public:

    DiscreteSystemForceCalculator(MeshBasedCellPopulation<2>& rCellPopulation, std::vector<boost::shared_ptr<AbstractTwoBodyInteractionForce<2> > > forceCollection);

    std::vector< std::vector<double> > CalculateExtremalNormalForces();

    void WriteResultsToFile(std::string simulationOutputDirectory);

    void SetEpsilon(double epsilon);
};

#endif /*DISCRETESYSTEMFORCECALCULATOR_HPP_*/