使用Google地图进行地理编码

Posted 2021-02-27

# gLatLong.py - M.Keranen ([email protected]) - 01/09/2006
# ------------------------------------------------------
# Get lat/long coordinates of an address from Google Maps
 
import os,urllib
 
addr = raw_input('
Address or (Lat,Long): ')
while addr <> '':
    url = ''
    if addr[0]=='(':
        center = addr.replace('(','').replace(')','')
        lat,lng = center.split(',')
        url = 'http://maps.google.com/maps?q=%s+%s' % (lat,lng)
    else:
        # Encode query string into URL
        url = 'http://maps.google.com/?q=' + urllib.quote(addr) + '&output=js'
        print '
Query: %s' % (url)
 
        # Get XML location
        xml = urllib.urlopen(url).read()
 
        if '<error>' in xml:
           print '
Google cannot interpret the address.'
        else:
            # Strip lat/long coordinates from XML
            lat,lng = 0.0,0.0
            center = xml[xml.find('{center')+10:xml.find('}',xml.find('{center'))]
            center = center.replace('lat:','').replace('lng:','')
            lat,lng = center.split(',')
            url = 'http://maps.google.com/maps?q=%s+%s' % (lat,lng)
 
    if url<>'':
        print 'Map: %s' % (url)
        os.startfile(url)
 
    addr = raw_input('
Address or (Lat,Long): ')