#include "liblwgeom_internal.h"
#include "lwgeodetic.h"
#include "lwgeom_log.h"
#include <geodesic.h>

Include dependency graph for lwspheroid.c:

Functions
void	spheroid_init (SPHEROID *s, double a, double b)
	Initialize spheroid object based on major and minor axis. More...

double	spheroid_distance (const GEOGRAPHIC_POINT a, const GEOGRAPHIC_POINT b, const SPHEROID *spheroid)
	Computes the shortest distance along the surface of the spheroid between two points, using the inverse geodesic problem from GeographicLib (Karney 2013). More...

double	spheroid_direction (const GEOGRAPHIC_POINT a, const GEOGRAPHIC_POINT b, const SPHEROID *spheroid)
	Computes the forward azimuth of the geodesic joining two points on the spheroid, using the inverse geodesic problem (Karney 2013). More...

int	spheroid_project (const GEOGRAPHIC_POINT r, const SPHEROID spheroid, double distance, double azimuth, GEOGRAPHIC_POINT *g)
	Given a location, an azimuth and a distance, computes the location of the projected point. More...

static double	ptarray_area_spheroid (const POINTARRAY pa, const SPHEROID spheroid)

double	lwgeom_area_spheroid (const LWGEOM lwgeom, const SPHEROID spheroid)
	Calculate the area of an LWGEOM. More...

Functions