Google Maps API - geocoding accuracy chart? - google-maps

Question

Where in the Google Maps API docs can I find a table explaining the accuracy values of Geocode lookups?
Has the range of values changed in between V2 and V3?

Answer 1

Here are the Google Maps API Docs. It contains a table with accuracy values...
http://code.google.com/apis/maps/documentation/reference.html#GGeoAddressAccuracy
Constant | Description
0 Unknown location.
1 Country level accuracy.
2 Region (state, province, prefecture, etc.) level accuracy.
3 Sub-region (county, municipality, etc.) level accuracy.
4 Town (city, village) level accuracy.
5 Post code (zip code) level accuracy.
6 Street level accuracy.
7 Intersection level accuracy.
8 Address level accuracy.
9 Premise (building name, property name, shopping center, etc.) level accuracy.

Answer 2

Here are the real status answers from geocoder:
You can output the status inside your geocoding function:
myMap.geocoder.geocode(
{ address: someAdress } ),
function ( responses, status ) {
console.log( status );
}
);
When passing the status, you can switch those four values:
switch ( status )
{
case 'ROOFTOP' :
var precision = 'precise';
break;
case 'RANGE_INTERPOLATED' :
var precision = 'interpolated';
break;
case 'APPROXIMATE' :
var precision = 'approximately';
break;
case 'ZERO_RESULTS' :
var precision = 'no address';
break;
}

Answer 3

#Pekka
I don't know if you saw, but V3 does not include accuracy anymore. It seems that there is a different way though. If you add the results of the address_component elements you get a similar result. Disclaimer: I am not 100% sure about this but it looks like that they included the accuracy this way. I am currently doing some testing is this the way to go.
Here an example:
I searched for: 555 Pearl Street, Boulder
Here the result with Address Level accuracy (8 levels deep).
[address_component] => Array
(
[0] => SimpleXMLElement Object
(
[long_name] => 555
[short_name] => 555
[type] => street_number
)
[1] => SimpleXMLElement Object
(
[long_name] => Pearl St
[short_name] => Pearl St
[type] => route
)
[2] => SimpleXMLElement Object
(
[long_name] => Boulder
[short_name] => Boulder
[type] => Array
(
[0] => locality
[1] => political
)
)
[3] => SimpleXMLElement Object
(
[long_name] => Boulder
[short_name] => Boulder
[type] => Array
(
[0] => administrative_area_level_3
[1] => political
)
)
[4] => SimpleXMLElement Object
(
[long_name] => Boulder
[short_name] => Boulder
[type] => Array
(
[0] => administrative_area_level_2
[1] => political
)
)
[5] => SimpleXMLElement Object
(
[long_name] => Colorado
[short_name] => CO
[type] => Array
(
[0] => administrative_area_level_1
[1] => political
)
)
[6] => SimpleXMLElement Object
(
[long_name] => United States
[short_name] => US
[type] => Array
(
[0] => country
[1] => political
)
)
[7] => SimpleXMLElement Object
(
[long_name] => 80302
[short_name] => 80302
[type] => postal_code
)
)