Question

我需要将经度和纬度坐标转换为国家或城市，在python中有这样的例子吗？

提前感谢！

Answer 1

我使用Google的API。

from urllib2 import urlopen
import json
def getplace(lat, lon):
    url = "http://maps.googleapis.com/maps/api/geocode/json?"
    url += "latlng=%s,%s&sensor=false" % (lat, lon)
    v = urlopen(url).read()
    j = json.loads(v)
    components = j['results'][0]['address_components']
    country = town = None
    for c in components:
        if "country" in c['types']:
            country = c['long_name']
        if "postal_town" in c['types']:
            town = c['long_name']
    return town, country


print(getplace(51.1, 0.1))
print(getplace(51.2, 0.1))
print(getplace(51.3, 0.1))

<强>输出：

(u'Hartfield', u'United Kingdom')
(u'Edenbridge', u'United Kingdom')
(u'Sevenoaks', u'United Kingdom')

Answer 2

此后，Google已弃用了对其API的无密钥访问权限。前往Google并注册密钥，您每天可获得约1,000个免费查询。接受的答案中的代码应按以下方式进行修改（无法添加评论，代表人数不足）。

from urllib.request import urlopen
import json

def getplace(lat, lon):
    key = "yourkeyhere"
    url = "https://maps.googleapis.com/maps/api/geocode/json?"
    url += "latlng=%s,%s&sensor=false&key=%s" % (lat, lon, key)
    v = urlopen(url).read()
    j = json.loads(v)
    components = j['results'][0]['address_components']
    country = town = None
    for c in components:
        if "country" in c['types']:
            country = c['long_name']
        if "postal_town" in c['types']:
            town = c['long_name']

    return town, country

print(getplace(51.1, 0.1))
print(getplace(51.2, 0.1))
print(getplace(51.3, 0.1))

Answer 3

这称为反向地理编码。我可以在Python中找到一个专注于此的库：https://github.com/thampiman/reverse-geocoder

与其他想法相关的一些问题：

Answer 4

一般来说，Google API是最好的方法。它不适合我的情况，因为我必须处理很多条目，api很慢。

我编写了一个相同的小版本，但首先下载了一个巨大的几何图形并计算机器上的国家/地区。

mysqli_query

Answer 5

# Python3 program for reverse geocoding. 

# importing necessary libraries 
import reverse_geocoder as rg 
from pandas import DataFrame
import pandas as pd

def reverseGeocode(coordinates): 
    result = rg.search(coordinates) 
    
    return result

    
# Coorinates tuple.Can contain more than one pair. 

if __name__ == "__main__":
    result = []
    path = "CSV_NAME.CSV"
    df = pd.read_csv(path, error_bad_lines=False)
    for i in range(0, len(df)):
        coordinates =(df["latitude"], df["longitude"]) 
        result.append(reverseGeocode(coordinates))
    print(result)

如何转换经度和纬度到国家或城市？

5 个答案: