StateMapper.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstCore/TimePoint.hpp"
 
AST_NAMESPACE_BEGIN
 
class StateMapper
{
public:
    StateMapper() = default;
    virtual ~StateMapper() = default;
 
    virtual void toState(const double* y, double x, SpacecraftState& state) const = 0;
 
    virtual void fromState(const SpacecraftState& state, double* y, double& x) const = 0;
 
    void toTime(double x, TimePoint& time) const
    {
        time = epoch_ + x;
    }
 
    void fromTime(const TimePoint& time, double& x) const
    {
        x = time - epoch_;
    }
public:
 
    const TimePoint& epoch() const{return epoch_;}
 
    void setEpoch(TimePoint epoch){epoch_ = epoch;}
private:
    TimePoint epoch_;   
};
 
AST_NAMESPACE_END