python两个经纬度间的距离计算

# coding: utf-8
# author: lovecjy
# created_time: 2021/6/4

# https://blog.csdn.net/sinat_29675423/article/details/87879587
# python计算两个经纬度之间的距离
import math
from math import pi

# lat lon - > distance
# 计算经纬度之间的距离，单位为千米

EARTH_REDIUS = 6378.137


def rad(d):
	return d * pi / 180.0


def getDistance(lat1, lng1, lat2, lng2):
	radLat1 = rad(lat1)
	radLat2 = rad(lat2)
	a = radLat1 - radLat2
	b = rad(lng1) - rad(lng2)
	s = 2 * math.asin(
		math.sqrt(math.pow(math.sin(a / 2), 2) + math.cos(radLat1) * math.cos(radLat2) * math.pow(math.sin(b / 2), 2)))
	s = s * EARTH_REDIUS
	return s


if __name__ == '__main__':
	ret = getDistance(30.28708, 120.12802999999997, 28.7427, 115.86572000000001)
	print(ret)


# 拓展：https://www.cnblogs.com/andylhc/p/9481636.html
# 根据经纬度坐标计算距离-python

以上。