How to write a program in Python to obtain street view images in Baidu Maps API?

How to write a program in Python to obtain the street view image in Baidu Map API?

With the development of technology, we can now obtain and process various data through programs. In this article, I will show you how to use Python to write a program to get Street View images from Baidu Maps API. First, we need to understand the basic concepts and usage of Baidu Map API.

Baidu Map API is an API interface that provides geographical location-related information and functions, including the function of obtaining street view images. First, we need to register a developer account and application on the Baidu Map open platform to obtain an API key. We can then use this key for access and authorization. Next, we write code in Python to obtain Street View images.

First, we need to import the necessary libraries, including requests and json. The requests library can be used to easily send HTTP requests, and the json library can easily process data in JSON format.

import requests
import json

Next, we define a function to get the street view image. We need to pass in the latitude and longitude of the Street View image as parameters. Inside the function, we first construct a GET request URL, passing in the latitude and longitude and API key as parameters. We then send this request and parse the returned results into JSON formatted data.

def get_streetview_image(latitude, longitude, api_key):
    url = f"https://api.map.baidu.com/panorama/v2?ak={api_key}&location={latitude},{longitude}&width={400}&height={300}&fov={120}"
    response = requests.get(url)
    data = json.loads(response.text)
    return data

In the function, we use the staticimage interface in Baidu Map API. By giving the latitude and longitude and other parameters, we can obtain a static street view image and return the corresponding data.

Next, we can write the main program to call this function and save the results to a local file.

if __name__ == "__main__":
    latitude = 39.9087
    longitude = 116.3975
    api_key = "your_api_key"
    data = get_streetview_image(latitude, longitude, api_key)
    panorama_url = data["panorama"][0]["link"]
    image_data = requests.get(panorama_url).content
    with open("streetview.jpg", "wb") as f:
        f.write(image_data)

In the main program, we pass in the latitude, longitude and API key as parameters to call the get_streetview_image function. Then, we get the URL of the street view image from the returned data, download it using the requests library, and save it as a local file streetview.jpg.

Finally, we can run the program and see the results. The program will obtain the corresponding street view image based on the given longitude and latitude and save it as a file.

Through this example, we can see how to write a program in Python to obtain the street view image in Baidu Map API. Of course, Baidu Map API also provides more functions and interfaces, which can be called and used according to our needs. I hope this article is helpful to you, thank you for reading!

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