Implementation of the Haversine and Vincenty methods in Go for calculating geographical distances between points on the surface of the Earth.
go get github.com/asmarques/geodistpackage main
import (
"fmt"
"github.com/asmarques/geodist"
)
func main() {
lis := geodist.Point{38.781311, -9.135918}
sfo := geodist.Point{37.618817, -122.375427}
d := geodist.HaversineDistance(lis, sfo)
fmt.Printf("Haversine: %.2f km\n", d)
d, err := geodist.VincentyDistance(lis, sfo)
if err != nil {
fmt.Printf("Failed to converge: %v", err)
}
fmt.Printf("Vincenty: %.6f km\n", d)
}