mirror of
https://github.com/osm-search/Nominatim.git
synced 2026-02-16 15:47:58 +00:00
44 lines
2.1 KiB
Python
44 lines
2.1 KiB
Python
import numpy as np
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import urllib2 as url
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import json as json
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import random_points_bbox
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import time
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def test(num):
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#first get some random points in the bbox
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aPoints = random_points_bbox.getPoints(num, -100.815, 46.789, -100.717, 46.84)
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#get the addresses
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sReverseUrl = "http://localhost/nominatim/reverse.php?format=json&lat=%f&lon=%f"
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aAddresses = []
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for point in aPoints:
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response = url.urlopen(sReverseUrl % (point[1], point[0]))
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aAddresses.append(json.load(response)['address'])
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#print aAddresses
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# now we have all the addresses of the points in a list
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# lets forward geocode this list
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sOldUrl = "http://localhost/nominatim_old/search.php?format=json&city=%s&street=%s&addressdetails=1"
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sLineUrl = "http://localhost/nominatim/search.php?format=json&city=%s&street=%s&addressdetails=1"
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diff_lat =0
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diff_lon =0
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points =0
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for address in aAddresses:
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if 'house_number' in address and 'road' in address:
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responseOld = url.urlopen(sOldUrl % (address['city'], address['house_number']+' '+address['road']))
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dataOld = json.load(responseOld)
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print dataOld[0]['display_name']
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responseLine = url.urlopen(sLineUrl % (address['city'], address['house_number']+' '+address['road']))
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dataLine = json.load(responseLine)
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print dataLine[0]['display_name']
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temp_diff_lat = np.abs(float(dataOld[0]['lat'])-float(dataLine[0]['lat']))
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temp_diff_lon = np.abs(float(dataOld[0]['lon'])-float(dataLine[0]['lon']))
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print "diff lat: "+str(temp_diff_lat*111166)+", diff lon: "+str(temp_diff_lon*250456)
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diff_lat += temp_diff_lat
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diff_lon += temp_diff_lon
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points +=1
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print "Average difference in lat degrees with %d elements: %f (meters: %f)" % (points, diff_lat/points, diff_lat/points*111166)
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print "Average difference in lon degrees with %d elements: %f (meters: %f)" % (points, diff_lon/points, diff_lon/points*250456)
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# at 46.8 deg: 1 deg lat=111.166, 1 deg lon=250.456
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test(20)
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