This article describes the method of calculating the distance between two latitudes and longitudes and longitudes and longitudes. Share it for your reference, as follows:
golang version:
Copy the codeThe code is as follows:
package main
import (
"fmt"
"math"
)
func main() {
lat1 := 29.490295
lng1 := 106.486654
lat2 := 29.615467
lng2 := 106.581515
(EarthDistance(lat1, lng1, lat2, lng2))
}
// The return value is meters
func EarthDistance(lat1, lng1, lat2, lng2 float64) float64 {
radius := float64(6371000) // 6378137
rad := /180.0
lat1 = lat1 * rad
lng1 = lng1 * rad
lat2 = lat2 * rad
lng2 = lng2 * rad
theta := lng2 - lng1
dist := ((lat1) * (lat2) + (lat1) * (lat2) * (theta))
return dist * radius
}
import (
"fmt"
"math"
)
func main() {
lat1 := 29.490295
lng1 := 106.486654
lat2 := 29.615467
lng2 := 106.581515
(EarthDistance(lat1, lng1, lat2, lng2))
}
// The return value is meters
func EarthDistance(lat1, lng1, lat2, lng2 float64) float64 {
radius := float64(6371000) // 6378137
rad := /180.0
lat1 = lat1 * rad
lng1 = lng1 * rad
lat2 = lat2 * rad
lng2 = lng2 * rad
theta := lng2 - lng1
dist := ((lat1) * (lat2) + (lat1) * (lat2) * (theta))
return dist * radius
}
php version:
<?php
// The return value is metersfunction pc_sphere_distance($lat1, $lon1, $lat2, $lon2, $radius = 6371000) {
$rad = doubleval(M_PI/180.0);
$lat1 = doubleval($lat1) * $rad;
$lon1 = doubleval($lon1) * $rad;
$lat2 = doubleval($lat2) * $rad;
$lon2 = doubleval($lon2) * $rad;
$theta = $lon2 - $lon1;
$dist = acos(sin($lat1) * sin($lat2) + cos($lat1) * cos($lat2) * cos($theta));
return $dist * $radius * 1000;
}
$lat1 = 29.490295;
$lon1 = 106.486654;
$lat2 = 29.615467;
$lon2 = 106.581515;
echo pc_sphere_distance($lat1, $lon1, $lat2, $lon2);
I hope this article will be helpful to everyone's Go language programming.