reverse-geoplanet
reverse-geoplanet is a simple web application to reverse geocode a latitude and longitude using the Flickr reverse geocoder. Results include both the primary Where On Earth (WOE) ID for the lat,lon and a truncated hierarchy of parent WOE IDs. Results are cached in both a MySQL instance local to the application as well as Memcache, if it is installed.
reverse-geoplanet was originally developed for the building=yes project.
You will need a valid Flickr API key in order to use reverse-geoplanet.
Installing reverse-geoplanet
Please consult the INSTALL.md document.
How to
http://example.com/reverse-geoplanet/www/?lat=37.765219&lon=-122.419787
http://example.com/reverse-geoplanet/www/?ll=37.765219,-122.419787
{
"latitude":"37.765",
"longitude":"-122.420",
"geohash":"9q8yy6bm",
"woeid":"23512048",
"locality":"2487956",
"region":"2347563",
"country":"23424977",
"created":"1327172399",
"name":"Mission Dolores, San Francisco, CA, US, United States",
"placetype":"22",
"stat":"ok"
}
Do you see the part where the name attribute contains the country name twice? The part
where it says "Mission Dolores, San Francisco, CA, US, United States"? That's actually I bug
that I am responsible for from back, so many moons ago, when I still worked at Flickr. I'm sorry.
It hurts every time I see it...
By default reverse-geoplanet outputs JSON and is expected to be run more as a service for other robots rather than a website for humans. You can force results to be returned as HTML by specifying the inline=1 argument. For example:
http://example.com/reverse-geoplanet/www/?lat=37.765219&lon=-122.419787&inline=1
PHP
You can also call the reverse geocoder directly from a Flamework project like this:
include("include/init.php");
loadlib("reverse_geoplanet");
$lat = 40.721294;
$lon = -73.983994;
$remote = 'http://reverse.example.com/';
dumper(reverse_geoplanet($lat, $lon));
dumper(reverse_geoplanet($lat, $lon, $remote));
The third argument is optional and tells the code to call another remote instance of reverse-geoplanet for results.
If you want to bolt the functionality in to another Flamework project itself you'll need to copy the following files:
(I should probably just write a shell script to automate this...)
Python
There is a client-side Python library included that will call your instance of reverse-geoplanet and also cache the results locally using an in-memory SQLite database. In case you want to do reverse geocoding from your laptop or something. Like this:
$> cd python/reverse_geoplanet
$> python __init__.py 'example.com/reverse-geoplanet/www'
{
u'stat': u'ok',
u'name': u'Ygnacio Valley, Concord, CA, US, United States',
u'locality': u'2384020',
u'woeid': u'55858555',
u'region': u'2347563',
u'created': u'1327172577',
u'longitude': u'-122.022',
u'placetype': u'22',
u'geohash': u'9q9pxrf7',
u'country': u'23424977',
u'latitude': u'37.924'
}
Flamework
reverse-geoplanet is built on top of Flamework which means if you're poking around the code you may be wondering what all that other stuff is for. At the moment: Nothing and it's all disabled. In the future, who knows?
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