Gravity

Functions and structs for dealing with gravity. More...

Files
file	gravity.h
	API header file for gravity in zscilib.

Functions
int	zsl_grav_lat_alt (zsl_real_t lat, zsl_real_t alt, zsl_real_t *g)
	Calculates the geographical gravitational field based on latitude and altitude over the sea level. More...

Detailed Description

Functions and structs for dealing with gravity.

Function Documentation

zsl_grav_lat_alt()

int zsl_grav_lat_alt	(	zsl_real_t	lat,
		zsl_real_t	alt,
		zsl_real_t *	g
	)

Calculates the geographical gravitational field based on latitude and altitude over the sea level.

Information taken from the following webpage: https://www.welmec.org/welmec/documents/guides/2/2021/WELMEC_Guide_2_v2021.pdf

Parameters

lat	Latitude of the point where the gravity is to be calculated, in degrees.
alt	Altitude of the point of interest, in meters.
g	Pointer to the output gravity, in meters per second squared.

Returns

0 if everything executed correctly, -EINVAL if the altitude is negative or if the latitude is not between -90 and 90 degrees.