1. Hacking up
location aware apps
Anshu Prateek
Search/YDN
Yahoo! Developer Network
http://slideshare.net/anshprat
@anshprat

2. Where?
http://www.flickr.com/photos/saveoursmile/5849236335/

3. What’s around?

4. http://www.flickr.com/photos/joeshlabotnik/422697043/

5. http://www.flickr.com/photos/anonymouscollective/1899303123/

6. Oldest known map
Imago Mundi Babylonian map, the oldest known world map, 6th century BCE Babylonia.
http://en.wikipedia.org/wiki/Early_world_maps

7. World map as of 2011
http://en.wikipedia.org/wiki/World_map

8. Beyond maps…

9. Typical questions..
• Where?
• Here?
• Around?
• Meta?
• Who?
• When?

10. Current Location
www.flickr.com/photos/mukumbura/4092900623/

11. Current Location
• Ask
• Sniff
• Infer

12. Ask the user

13. Ask the browser
http://isithackday.com/hacks/geo/js-location.html

14. Ask the browser
http://blog.ganeshzone.net/index.php/2011/0
5/geolocation-api-with-html5/

15. Ask the browser
http://foursquare.com

16. W3C geolocation API
navigator.geolocation.getCurrentPosition(function(position)
{
console.log(
'Your Coordinates are ’
+
position.coords.latitude
+'&’+
position.coords.longitude
);
}
http://dev.w3.org/geo/api/spec-source.html

17. Sniff
http://sulekha.com, http://asklaila.com
http://justdial.com

18. IP Sniffing
http://isithackday.com/hacks/geo/js-location.html

19. IP Sniffing
<script type="text/javascript" src="http://j.maxmind.com/app/geoip.js"></script>
• geoip_latitude
• geoip_longitude
• geoip_city
• geoip_region
• geoip_region_name
• geoip_postal_code
• geoip_country_code
• geoip_country_name
http://www.maxmind.com/

20. Infer

21. Infer

22. Query
Wikipedia

23. Why go around when you have…

24. GeoCoding
select * from
geo.placefinder where
text="iit delhi"

25. Reverse GeoCoding
select * from
geo.placefinder
where
text="12.9456651,
77.6472844"
and gflags="R"

26. Yahoo! GeoPlanet™
http://where.yahooa
pis.com/v1/places.q('
gateway+of+india')?a
ppid=

27. Yahoo! GeoPlanet™
• geo.places.ancestors
• geo.places.belongtos
• geo.places.children
• geo.places.common
• geo.places.descendants
• geo.places.neighbors
• geo.places.parent
• geo.places.siblings
http://developer.yahoo.com/geo/geoplanet/

28. GeoPlanet Explorer
http://isithackday.com/geoplanet-explorer/

29. SELECT * FROM
geo.placemaker WHERE
documentContent = "AR
Rahman received his oscar
award in Los Angeles for a
movie made in Mumbai for
which he composed music
in Chennai" AND
documentType="text/plain
"

30. SELECT * FROM
geo.placemaker
WHERE documentURL
= "http://www.mid-
day.com/news/2012/j
ul/250712-mumbai-
Talking-a-toll.htm"
AND
documentType="text/
html"

31. Interesting hacks
• http://trendsmap.com/local/in/mumbai

32. http://christianheilmann.com/2009/07/14/rss2map-a-
placemakeryahoo-maps-mashup/

33. Awesome Apps

34. Awesome Apps

35. Augmented Reality
Metro AR
Wikitude
Layar
http://www.businessinsider.com/best-augmented-reality-apps-for-iphone-and-ios-2011-3?op=1

36. Useful resources
• http://developer.yahoo.com/geo/
• http://isithackday.com/hacks/geo/
• http://isithackday.com/geoplanet-explorer/
• http://developer.yahoo.com/geo/geoplanet/d
ata/

37. http://www.snookerbacker.com/2011/04/24/crucible-day-9/