sunriset.c File Reference

#include <stdio.h>
#include <math.h>
#include "sunriset.h"

Macros
#define	INV360   ( 1.0 / 360.0 )

Functions
int	__sunriset__ (int year, int month, int day, double lon, double lat, double altit, int upper_limb, double *trise, double *tset)
double	__daylen__ (int year, int month, int day, double lon, double lat, double altit, int upper_limb)
void	sunpos (double d, double *lon, double *r)
void	sun_RA_dec (double d, double *RA, double *dec, double *r)
double	revolution (double x)
double	rev180 (double x)
double	GMST0 (double d)

Macro Definition Documentation

INV360

#define INV360   ( 1.0 / 360.0 )

Function Documentation

__daylen__()

double __daylen__	(	int	year,
		int	month,
		int	day,
		double	lon,
		double	lat,
		double	altit,
		int	upper_limb
	)

References acosd, cosd, days_since_2000_Jan_0, lat, sind, and sunpos().

__sunriset__()

int __sunriset__	(	int	year,
		int	month,
		int	day,
		double	lon,
		double	lat,
		double	altit,
		int	upper_limb,
		double *	trise,
		double *	tset
	)

References acosd, cosd, days_since_2000_Jan_0, GMST0(), lat, rev180(), revolution(), sind, and sun_RA_dec().

Referenced by navit_layout_switch().

GMST0()

double GMST0

(

double

d

)

References revolution().

Referenced by __sunriset__().

rev180()

double rev180

(

double

x

)

References INV360.

Referenced by __sunriset__().

revolution()

double revolution

(

double

x

)

References INV360.

Referenced by __sunriset__(), GMST0(), and sunpos().

sun_RA_dec()

void sun_RA_dec	(	double	d,
		double *	RA,
		double *	dec,
		double *	r
	)

References atan2d, cosd, sind, and sunpos().

Referenced by __sunriset__().

sunpos()

void sunpos	(	double	d,
		double *	lon,
		double *	r
	)

References atan2d, cosd, M, RADEG, revolution(), and sind.

Referenced by __daylen__(), and sun_RA_dec().