osmium::geom::haversine Namespace Reference

Functions to calculate arc distance on Earth using the haversine formula. More...

Functions
double	distance (const osmium::geom::Coordinates &c1, const osmium::geom::Coordinates &c2) noexcept
double	distance (const osmium::WayNodeList &wnl)
double	distance (const osmium::NodeRefList &nrl)

Variables
constexpr const double	EARTH_RADIUS_IN_METERS = 6372797.560856
	Earth's quadratic mean radius for WGS84. More...

Detailed Description

Functions to calculate arc distance on Earth using the haversine formula.

See https://en.wikipedia.org/wiki/Haversine_formula

Implementation derived from http://blog.julien.cayzac.name/2008/10/arc-and-distance-between-two-points-on.html

Function Documentation

distance() [1/3]

double osmium::geom::haversine::distance ( const osmium::geom::Coordinates &  c1, const osmium::geom::Coordinates &  c2  )

inlinenoexcept

Calculate distance in meters between two sets of coordinates.

Precondition

c1.valid() && c2.valid() 

distance() [2/3]

double osmium::geom::haversine::distance ( const osmium::NodeRefList &  nrl )

inline

Calculate length of node list.

distance() [3/3]

double osmium::geom::haversine::distance ( const osmium::WayNodeList &  wnl )

inline

Calculate length of way.

Variable Documentation

EARTH_RADIUS_IN_METERS

constexpr const double osmium::geom::haversine::EARTH_RADIUS_IN_METERS = 6372797.560856

constexpr

Earth's quadratic mean radius for WGS84.