python应用：经纬度匹配

需要安装第三方包：requests

本次经纬度匹配采用高德地图api，首先将gps坐标转化为高德地图的经纬度坐标，然后再根据转化后的坐标进行匹配。

本次匹配主要是获取距离给定经纬度最近的poi点地址信息。

主要程序如下所示：

 1 #-*-coding:utf8-*-
 2 import requests
 3 import csv
 4 import chardet
 5 import sys
 6 reload(sys)
 7 sys.setdefaultencoding("utf8")
 8 
 9 location='116.81963,40.310799'
10 def geocode(location):
11     parameters={'location':location,'key':'7447d3ae24afa6497f1b459fc5cd0419','extensions':'all'}
12     base = 'http://restapi.amap.com/v3/geocode/regeo'
13     response = requests.get(base,parameters)
14     answer = response.json()
15     print answer['regeocode']['pois'][0]['name']
16 
17 def transform(location):
18     parameters = {'locations':location,'coordsys':'gps','key':'7447d3ae24afa6497f1b459fc5cd0419'}
19     base = 'http://restapi.amap.com/v3/assistant/coordinate/convert'
20     response = requests.get(base,parameters)
21     answer = response.json()
22     return answer['locations']
23 
24     
25 geocode(transform(location))

运行结果如下图所示：

如果需要获取其他地址信息可输出对应的answer中的其他值，值的名称对应如下图所示：