util

Documentation

Index

• Constants
• func DistancePerDegree() float64
• func GeoDistanceAre(lat1, lon1, lat2, lon2 float64) (float64, error)
• func GeoDistancePlane(lat1, lon1, lat2, lon2 float64) (float64, error)
• type GeoLocation
  • func GeoLocationFromOrigin(origin string) (GeoLocation, error)

Constants

const EARTH_EQUATOR = 2 * math.Pi * EARTH_SEMI_LONG_AXIS

const EARTH_RADIUS = 6378137

const EARTH_RADIUS_FLOAT64 = float64(EARTH_RADIUS)

const EARTH_SEMI_LONG_AXIS = 6378137.0

Earth semi long axis defined by WGS84 in meters

const EARTH_SEMI_SHORT_AXIS = 6378137.0

Earth semi short axis defined by WGS84 in meters

const RAD = math.Pi / 180.0

Functions

func DistancePerDegree

func DistancePerDegree() float64

func GeoDistanceAre

func GeoDistanceAre(lat1, lon1, lat2, lon2 float64) (float64, error)

func GeoDistancePlane

func GeoDistancePlane(lat1, lon1, lat2, lon2 float64) (float64, error)

Types

type GeoLocation

type GeoLocation struct {
	Lat float64 `json:"lat,omitempty"`
	Lon float64 `json:"lon,omitempty"`
}

func GeoLocationFromOrigin

func GeoLocationFromOrigin(origin string) (GeoLocation, error)