2017-03-12 77 views
-1

我有一个来自查询的geojson数据,我现在想解析并在屏幕上打印。我当前的代码是:我怎样才能用Python解析GeoJSON

import urllib 
import geojson 

while True: 

    url = 'https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&starttime=2012-01-01&endtime=2017-03-01&minmagnitude=4.0&maxmagnitude=9.0&minlongitude=5.95&maxlongitude=10.50&minlatitude=45.81&maxlatitude=47.81' 
    uh = urllib.urlopen(url) 
    data = uh.read() 
    print data 
    break 

看来data是一个简单的字符串。不过,我认为它可以像json参数一样被解析。如何处理geojson数据以便打印单个point,例如仅提取第一个点的坐标?

回答

2

可以读取它喜欢的任何JSON:

import json 
data = json.loads(datastring) 
data['features'][0]['geometry'] #Your first point 
1
import geojson 
with open(path_to_file) as f: 
    gj = geojson.load(f) 
features = gj['features'][0]