Physics.h

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#ifndef H_PHYSICS
#define H_PHYSICS

namespace Physics { 

typedef double Seconds_t;

typedef double Kelvin_t;

typedef double Wnum_t;

typedef double Cm_t;

typedef double Radiance_t;


inline Radiance_t planckRadiance( Kelvin_t T, Wnum_t wnum )
{
    return Radiance_t( 0. ); 
}


struct Constants_t
{
    double planck;
};    

struct Wnums_t
{
    Wnum_t baseWnum;
    Wnum_t deltaWnum;
    unsigned wnumCount;
    
    inline unsigned trunc( unsigned offset ) const 
    { return (offset>=wnumCount)? wnumCount-1 : offset; }
    
    inline double operator[]( unsigned offset ) const
    { return deltaWnum*double(trunc(offset))+baseWnum ; }
};


class PlanckRadianceGenerator
{
    const Constants_t &C;
    const Wnums_t &W;
    const Kelvin_t T;
    
public:
    PlanckRadianceGenerator( const Constants_t &_c, const Wnums_t &_w, Kelvin_t _t ): 
        C(_c), W(_w), T(_t)
    { }
    
    inline Radiance_t operator[]( unsigned offset ) const
    {
        return planckRadiance( T, W[offset] ); 
    }
};
    
}; // namespace Physics


#endif

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