Baidu Map API 문서의 좌표 변환 기능을 분석하는 Python 프로그래밍

pip install requests

import requests
import json

class 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 = 116.404
lat = 39.915
bd_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 = 116.404
bd_lat = 39.915
lng, 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 = 116.404
lat = 39.915
gcj_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 = 116.404
gcj_lat = 39.915
lng, lat = map_api.gcj02_to_wgs84(gcj_lng, gcj_lat)
print("GCJ-02 to WGS84: {}, {}".format(lng, lat))