python实现计算2个GPS点位之间的距离的方法

#!/usr/bin/env python
# encoding: utf-8
# Author: GuoCheng
# 2022/4/22 10:44
from math import asin, sqrt, cos, sin, radians


def geo_distance(lng1, lat1, lng2, lat2):
    # lng1,lat1,lng2,lat2 = (120.12802999999997,30.28708,115.86572000000001,28.7427)
    lng1, lat1, lng2, lat2 = map(radians, [float(lng1), float(lat1), float(lng2), float(lat2)])  # 经纬度转换成弧度
    dlon = lng2 - lng1
    dlat = lat2 - lat1
    a = sin(dlat / 2) ** 2 + cos(lat1) * cos(lat2) * sin(dlon / 2) ** 2
    distance = 2 * asin(sqrt(a)) * 6371 * 1000  # 地球平均半径，6371km
    # 单位：米
    distance = round(distance, 3)
    return distance

s = geo_distance(116.304665600000,39.976920900000,116.305097538773,39.982684462583)
print(s)