social geolocation using yahoo blueprint
TRANSCRIPT
OPEN HACK DAYJakarta, 22 November 2009
Hacking
Introducing BOLA.MOBILEA mobile apps, create
using Yahoo Blueprint technology
Targeting a very specific and niche market, the Indonesian Soccer League
Mini Social Networking
We have this cute mini social networking, grouped by League Clubs
The problem!But who the hell wanted
they buddies to be alphabetically ordered
Ordered by A to Z?Really uncool!
Thank Goodness I Use YAHOO BLUEPRINT!
BLUEPRINT HEADERS MAGIC
Blueprint sent Geolocation data on each HTTP request
BP Headers[HTTP_GEO_COUNTRY] => ID [HTTP_GEO_POSITION] => -6.18287, 106.829109[HTTP_X_CARRIER] => UNKNOWN; country=ID [HTTP_X_GEO_LOCATION] => name=; street=;
city=Jakarta; state=; country=ID; zip=
Geolocation data for Indonesia is suckybut Yahoo will make it better through
FireEagle and Koprol.
Trust me.
getDistance Between Two Coordinates – MySQL Function
CREATE FUNCTION `getDistance`(lat1 DECIMAL(23,20), lon1 DECIMAL(23,20), lat2 DECIMAL(23,20), lon2 DECIMAL(23,20)
) RETURNS decimal(15,5)BEGIN
SET @R = 6371;SET @dLat = RADIANS(lat2 - lat1);SET @dLon = RADIANS(lon2 - lon1);SET @a = POW( SIN(@dLat/2), 2 ) + ( COS( RADIANS(lat1) ) * COS( RADIANS(lat2) ) * POW( SIN(@dLon/2), 2 ));SET @c = 2 * ATAN2( SQRT(@a), SQRT(1 - @a) );SET @d = @R * @c;RETURN @d;
END
Everytime the user logged inWe update the user’s location and coordinates[HTTP_GEO_POSITION] => -6.18287, 106.829109[HTTP_X_GEO_LOCATION] => name=; street=;
city=Jakarta; state=; country=ID; zip=
Results!Look for my buddies really
close to me, and then look for the ones who logged in recently
Ordered by Distance from where I am.REALLY COOL!
Ideas for YahooComplete the geolocation streets for IndonesiaActivate FireEagle. Geolocation is the next Web 4.0