NutationSeries.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "NutationTerm.hpp"
#include "AstUtil/Polynomial.hpp"
#include <vector>
 
AST_NAMESPACE_BEGIN
 
class BKVParser;
class FundamentalArguments;
 
class AST_CORE_API NutationSeries{
public:
    errc_t load(StringView filepath);
 
    errc_t loadSTK(StringView filepath);
 
    errc_t loadIERS(StringView filepath);
 
    double eval(double t, const FundamentalArguments& fundargs) const;
 
    double eval(const TimePoint& tp, const FundamentalArguments& fundargs) const;
 
    bool isLoaded() const {return !terms_.empty();}
protected:
    
    errc_t loadSTK(BKVParser& parser);
 
    errc_t loadIERS(BKVParser& parser);
 
protected:
    Polynomial polynomial_;             
    std::vector<NutationTerm> terms_;   
    std::vector<int> jlist_;            
};
 
 
AST_NAMESPACE_END