Python编程解析百度地图API文档中的坐标转换功能

pip install requests

import requestsimport jsonclass BaiduMap:    def __init__(self, ak):        self.ak = ak  # 百度地图API的密钥    def wgs84_to_bd09(self, lng, lat):        url = "http://api.map.baidu.com/geoconv/v1/?coords={},{}&from=1&to=5&ak={}".format(lng, lat, self.ak)        response = requests.get(url)        data = json.loads(response.text)        if data["status"] == 0:            return data["result"][0]["x"], data["result"][0]["y"]        else:            return None    def bd09_to_wgs84(self, lng, lat):        url = "http://api.map.baidu.com/geoconv/v1/?coords={},{}&from=5&to=1&ak={}".format(lng, lat, self.ak)        response = requests.get(url)        data = json.loads(response.text)        if data["status"] == 0:            return data["result"][0]["x"], data["result"][0]["y"]        else:            return None    def wgs84_to_gcj02(self, lng, lat):        url = "http://api.map.baidu.com/geoconv/v1/?coords={},{}&from=1&to=3&ak={}".format(lng, lat, self.ak)        response = requests.get(url)        data = json.loads(response.text)        if data["status"] == 0:            return data["result"][0]["x"], data["result"][0]["y"]        else:            return None    def gcj02_to_wgs84(self, lng, lat):        url = "http://api.map.baidu.com/geoconv/v1/?coords={},{}&from=3&to=1&ak={}".format(lng, lat, self.ak)        response = requests.get(url)        data = json.loads(response.text)        if data["status"] == 0:            return data["result"][0]["x"], data["result"][0]["y"]        else:            return None

# 实例化BaiduMap对象map_api = BaiduMap("Your_Key")# WGS84坐标转百度坐标（GCJ-02）lng = 116.404lat = 39.915bd_lng, bd_lat = map_api.wgs84_to_bd09(lng, lat)print("WGS84 to BD-09: {}, {}".format(bd_lng, bd_lat))# 百度坐标（BD-09）转WGS84坐标bd_lng = 116.404bd_lat = 39.915lng, lat = map_api.bd09_to_wgs84(bd_lng, bd_lat)print("BD-09 to WGS84: {}, {}".format(lng, lat))# WGS84坐标转火星坐标（GCJ-02）lng = 116.404lat = 39.915gcj_lng, gcj_lat = map_api.wgs84_to_gcj02(lng, lat)print("WGS84 to GCJ-02: {}, {}".format(gcj_lng, gcj_lat))# 火星坐标（GCJ-02）转WGS84坐标gcj_lng = 116.404gcj_lat = 39.915lng, lat = map_api.gcj02_to_wgs84(gcj_lng, gcj_lat)print("GCJ-02 to WGS84: {}, {}".format(lng, lat))