Using the google geocode API I am unable to get administrative_level_1(state) information for location on border of India (Kashmir, Arunachal Pradesh, ...). Can anyone help me with this?
see issue 8450 in the issue tracker
from that issue:
http://en.wikipedia.org/wiki/List_of_territorial_disputes
In disputed areas, geocoding results have no country (and sometimes no administrative_area_level_1). Reverse geocoding for disputed areas returns no results (e.g. 34.0836581,74.7973681). There is work underway to make reverse geocoding work in disputed areas.
Related
I need a reliable method to get the city, state and country place_id from latitude and longitude.
I'm trying by using Google Maps geocode, but the problem is that some coordinates don't return the administrative_level_1 (state) or the country.
Take this GET request for instance:
https://maps.googleapis.com/maps/api/geocode/json?latlng=-25.4364413,-49.2839333&result_type=country&key=YOUR_API_KEY
It returns:
{
"results": [],
"status": "ZERO_RESULTS"
}
Did you know a way to get this results?
This is a bug and it was reported in Google issue tracker in November 2016. Please have a look at bug report and feel free to star it to add your vote.
https://issuetracker.google.com/issues/35829979
I've already added a link to this question in the bug. You can also check workarounds suggested by users in bug comments.
For example, there is following suggestion
I found a workaround:
if I do not get a country back, I will do a second reverse geocoding with the coordinates of the highest result I got.
Most of the times these coordinates will be in an area, where I can get the country.
This is not ideal, but it works for the cases I found.
I believe you might also be interested in the feature request 'Add place_id in each address_components':
https://issuetracker.google.com/issues/35827596
Feel free to star it as well.
I'm a french developer and I have question about GMAP Geocoding API.
I'm on a new website work, which use this API.
The Geocoding API is used to get geocoded boundaries of french cities when user enter a french postal code.
So I request the API by this URL : https://maps.googleapis.com/maps/api/geocode/json?address=MY_ZIP_CODE&components=country:fr&key=my_key
In France, sometimes there is multiple cities for one postal code.
The default city is written in the JSON in address_components, "types" : [ "locality", "political" ] and all the cities are writtent in "postcode_localities".
(have an example in screenshot).
Last week, everything was working good.
But today, I've got a big probleme... When I use postal code (69510, 69310, 69600, etc....) multiple cities or alone city aren't no longer displayed.... But it works good for "69530".
It's embarassing for me because the website I'm bulding use the postal code to do a geolocated search with km radius...
Do you know if this API was update ?
I've search on Google.... But I've never find an answer.
Thanks in advance for your help !!
Have a nice day
My screenshot that show the API JSON answer
I was experiencing this problem as well yesterday. #xomena was right.
They updated their API at the end of November/beginning of December, and started more strictly encouraging best practices – using the Geocoding API for complete postal code strings (for example, “48 Pirrama Rd, Pyrmont, NSW, Australia”), and the Places API for more ambiguous addresses and semantic locations, including businesses and points of interest.
Specifically their blog post said:
Future Changes to Geocoding API
We plan to roll out an update to the Geocoding API at the end of November 2016 that will increase the difference between Geocoding and Places performance for ambiguous and unambiguous queries. This change will improve the quality of Geocoding results for unambiguous queries, but will be more likely to return ZERO_RESULTS for ambiguous or incomplete queries where the Geocoding API was unable to find a high quality result.
If you are already using the above best practices, you should see an improvement in your Geocoding API results. If you are currently using the Geocoding API for incomplete or ambiguous queries, or for queries that may contain non-address information such as business names or apartment numbers, we recommend that you switch to the Places API instead, as it is likely to give better quality results for your use case.
Try using the Place Search API instead! https://developers.google.com/places/web-service/search
Please file a bug in the Google Maps API issue tracker.
This is not related to the new geocoder, you'll see that adding new_forward_geocoder=false to your requests makes no difference.
The postcode_localities field is never exposed in Places API.
I am experiencing the same problem as described by #Jean-Baptiste.
I opened an issue : http://code.google.com/p/gmaps-api-issues/issues/detail?id=11087
Thanks for your answers.
That's true, the Places API can't give an autocompletion and the Autocomplete API doesn't give me satisfaction.
I've change my JS API parser and I get geocoding datas even if the postcode localities exists. If the zip code exists, so the geocoding datas exist.
That's a solution.... The visitor knows the zip code of the city where he lives. And for a major part of cities, the zip code is ok.
I saw that www.booking.com has the same problem...
Screenshot of the same problem on booking.com
That's solved for me ;-)
Thanks !!
I was trying to geocode UNC-Chapel Hill and got a very bizarre result.
Here is my JSON request:
https://maps.googleapis.com/maps/api/geocode/json?address=University%20of%20North%20Carolina+Chapel%20Hill+North+Carolina&sensor=false
If you search that, you'll see that the result says it's in Chatham County, which is definitely incorrect. When I search for University of North Carolina on Google Maps, it's correct.
Any idea how to change my geocode request to improve the quality?
Thanks!
Try adding more queries to your request
According to the docs
https://developers.google.com/maps/documentation/geocoding/#ComponentFiltering
You may be able to add route, locality, administrative_area, country,etc.
on your search query
I'm trying to use Google Geocoding API, but i keep on getting a very inaccurate answer (off by 3.2 KM).
Here is an example:
http://maps.google.com/maps/api/geocode/json?sensor=true&address=Hava%27ad+Haleumi+21+Jerusalem
I get the coordinate 31.7857,35.2007.
Ff you look up "Hava'ad Haleumi 21 Jerusalem" in maps.google.com, you can see that the location is 3.2KM away from what Google Geocoding API gave me.
Does anyone know why this happens?
Thank you.
Actually, the Google Maps API does not support geocoding in Israel beyond city level, so your solution is to do what you did and finding an alternate geocoding service.
The reason you got the correct location when searching on maps.google.com is because the API uses a different provider than maps.google.com due to licensing issues.
Here is a spreadsheet detailing the coverage area for Google Maps.
It's possible to use waze.co.il instead of google:
Their JSON API is
http://www.waze.co.il/WAS/mozi?q=yourAddress&token=yourToken
(Also, as stated in this thread http://www.waze.co.il/forum/viewtopic.php?f=21&t=6113
reverse geocoding is a paid service.)
Take a look at the response. You are getting a partial match and the location type is approximate. If you look at the veiwport you will probably find that the location you are looking for falls within that viewport. *Edit - Actually it looks like it just matched to city - Jersulem in this case - which is why you are probably off by so far
When I type in addresses in Google maps for locations in Asia, quite a lot of them are off by more than 200 metres. For example, "blk 85 bedok north road, singapore" is off by more than 300 metres. While I don't expect Google Maps to be spot on every time, sometimes the error is too great for certain use cases. What options do I have to handle inaccurate Google Maps locations in a web app? The web app should let the user enter an address or postal code as part of an entry and I will geocode the address and store the lat-long.
You could use bing, yahoo's and google's Geo Location api's to find latitude and longitude for a location, average the results together and use the result. Thus, if they all agree, you still get a good location, but if they disagree you get the best approximation of all three.
You could even programmatically compare the results from each engine and throw out any that don't agree with the others (for instance, if bing and yahoo agree and google does not, you could throw out google).
Beyond that, if you have a collection of addresses you know to be wrong, you could simply store the correct longitude and latitude for those points, and override the results in those cases.
Of course, to get around this problem at all, you'll need to geocode the addresses, check their validity in some way (as described above), and plot them using their latitude and longitude.
You don't have any fixes for this really, you're at the mercy of the accuracy of google maps here. The important part is you don't know if the address in inaccurate when doing one search to the next, so nothing you can do to handle it.
You can post a topic here and google will see it and often respond as well: Google Maps Local Listing Forums. I'd open something there with some of your examples and hope they get more accurate...that's all you can do in this case.
There are always other alternatives as well, yahoo and bing have mapping APIs, but I have no idea how much better or worse off you'd be going that route.
The problem is not the lat/lng data, in fact, they are correct. The problem is that the geo coords of the map tiles of the public Google maps api are inaccurate. The maps at maps.google.com are provided by a different map provider than the map tiles used with the public Google Maps API that you can embed in your website, use in your own applications, etc.
Check my recent posting at Google Maps & apps with mapview have different current positions
Is the result out on maps.google.com as well as through the maps api?
If on google maps live site the result is accurate then you can do an ajax search to return the correct lon/lat.
I have used this when geocoding UK postcodes
Geocoding UK Postcodes with Google Map API
I tried to reply to the upper answer, but I am not qualified enough yet. Just be aware that whatever you're using for geocoding, sometimes has restrictions on the use of that data. For example, google's geocoding API isn't allowed to be used to display information retrieved anywhere but google maps. The same might be for the others, I don't know what your project is, but it's something to be aware of.