geo

package

v0.0.14 Latest Latest Go to latest Published: May 8, 2026 License: Apache-2.0 Imports: 5 Imported by: 0

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func DistanceKm(lat1, lon1, lat2, lon2 float64) float64

DistanceKm returns the great-circle distance in kilometres between two points.

func IsNearby(lat1, lon1, lat2, lon2 float64, radiusKm float64) bool

IsNearby reports whether two points are within radiusKm of each other.

func Lookup(location string) (lat, lon float64, ok bool)

Lookup resolves a location string like "Hamburg, Germany" to coordinates. Tries exact city+country match first, then city-only. Case-insensitive.

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