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HomeBackend DevelopmentPython TutorialHow to implement mobile map positioning function using Python and Baidu Map API

Method of using Python and Baidu Map API to implement mobile map positioning function

With the development of mobile Internet, map positioning function is becoming more and more common in mobile applications. Python, as a popular programming language, can also implement mobile map positioning functions by using Baidu Map API. The following will introduce the steps to implement the map positioning function using Python and Baidu Map API, and provide corresponding code examples.

Step 1: Apply for Baidu Map API Key
Before we begin, we first need to apply for a Baidu Map API key. You can register and apply on the Baidu Map Open Platform (http://lbsyun.baidu.com/). After successful application, you can get a unique API key. This key will be used in subsequent code.

Step 2: Install Baidu Map API SDK
Install the Python SDK of Baidu Map API, you can use the following command to install:

pip install baidu-map

Step 3: Import the required modules
In the Python code, we need to import the required modules. First import the Baidu map API module and the corresponding console module.

from baidumap.api import BaiduMapAPI
from baidumap.models import LatLng, CoordType

Step 4: Use Baidu Map API for positioning
Through the interface provided by Baidu Map API, we can implement the map positioning function.

First, create a BaiduMapAPI object and pass in the API key applied for previously.

api_key = "your_api_key" # 替换成之前申请的API密钥
baidu_map = BaiduMapAPI(api_key)

Then, use the geocoding() method of the BaiduMapAPI object to pass in the address parameters to be queried for geocoding. After successful encoding, the latitude and longitude information of the corresponding location can be obtained.

address = "北京市海淀区中关村"
response = baidu_map.geocoding(address)
location = response['result']['location']
latitude = location['lat']
longitude = location['lng']

Finally, you can pass the latitude and longitude information into the LatLng object, and then use CoordType to specify the geographical coordinate type, and finally pass the BaiduMapAPI object geocoding() method obtains the corresponding geographical location information.

latlng = LatLng(latitude, longitude, CoordType.BD09LL)
response = baidu_map.geodecoding(latlng)
formatted_address = response['result']['formatted_address']
print("位置:", formatted_address)

The complete code example is as follows:

from baidumap.api import BaiduMapAPI
from baidumap.models import LatLng, CoordType

api_key = "your_api_key" # 替换成之前申请的API密钥
baidu_map = BaiduMapAPI(api_key)

address = "北京市海淀区中关村"
response = baidu_map.geocoding(address)
location = response['result']['location']
latitude = location['lat']
longitude = location['lng']

latlng = LatLng(latitude, longitude, CoordType.BD09LL)
response = baidu_map.geodecoding(latlng)
formatted_address = response['result']['formatted_address']
print("位置:", formatted_address)

The above is how to use Python and Baidu Map API to implement the mobile map positioning function. By using the interface provided by Baidu Map API, we can easily implement geocoding and reverse geocoding of locations to achieve map positioning functions. Hope this article can be helpful to you!

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