How to call Baidu Map API through Python programming to implement map display function?

How to call Baidu Map API through Python programming to implement map display function?

With the rapid development of the Internet, map applications have become an indispensable part of our lives. As one of the largest map applications in China, Baidu Maps provides us with a wealth of services and API interfaces, which can easily realize the map display function. This article will introduce how to call Baidu Map API through Python programming to realize the map display function, and give corresponding code examples.

First, we need to register a developer account on Baidu Open Platform, create an application, and obtain the corresponding API key. Then, we can start writing code to implement the map display function. The following is a simple example code:

import urllib.parse
import requests
import webbrowser

def get_static_map(address):
    # 将地址转换为经纬度
    addr_params = {'address': address, 'output': 'json', 'ak': '你的API密钥'}
    addr_url = 'http://api.map.baidu.com/geocoding/v3/'
    addr_response = requests.get(addr_url, params=addr_params)
    addr_json = addr_response.json()
    location = addr_json['result']['location']
    lng = location['lng']
    lat = location['lat']

    # 获取静态地图
    static_url = 'http://api.map.baidu.com/staticimage/v2'
    static_params = {'center': f'{lng},{lat}', 'width': '500', 'height': '300', 'zoom': '15', 'markers': f'{lng},{lat}', 'ak': '你的API密钥'}
    static_response = requests.get(static_url, params=static_params)
    static_image = static_response.content

    # 保存地图图片
    with open('static_map.png', 'wb') as f:
        f.write(static_image)

    # 在浏览器中打开地图图片
    webbrowser.open('static_map.png')

if __name__ == '__main__':
    address = input('请输入地址：')
    get_static_map(address)

Code description:

1. Import the required libraries, including urllib, requests and webbrowser.
2. get_static_mapThe function is used to obtain the static map of the specified address. First, convert the address into longitude and latitude through the geocoding interface, and then obtain the static map image through the staticimage interface. Finally, save the image locally and open it in the browser.
3. In if __name__ == '__main__', the user enters the address and then calls the get_static_map function to display the map.

Using this code example, we can enter the address, call Baidu Map API to obtain the static map of the corresponding address, save the image locally and open it in the browser for display.

In addition to static maps, Baidu Map API also provides a wealth of functions, such as geocoding, route planning, administrative divisions, etc. Different API interfaces can be called according to actual needs to achieve more functions.

Summary:

It is not complicated to call Baidu Map API through Python programming to realize the map display function. You only need to register a Baidu Open Platform account to obtain the API key and call it through the corresponding API interface. . This article gives a sample code to display a static map, I hope it will be helpful to readers.

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