How to build smart apps that uses user's location

1. LOCATION.AWARE
How To Build Apps That Are Smarter
Sourav Chakraborty

2. WHERE
www.flickr.com/photos/mukumbura/4092900623/

3. WHAT'S AROUND

4. HOW TO GO THERE?
http://www.flickr.com/photos/anonymouscollective/1899303123/

5. MAPS
http://en.wikipedia.org/wiki/World_map

6. BEYOND MAPS

7. TYPICAL QUESTIONS
Where?
What's Happening Here?
What's Around?
When?
Who?
Meta?

8. CURRENT LOCATION
Ask
Sniff
Infer

9. ASK THE USER

10. ASK THE BROWSER

11. ASK THE BROWSER
http://blog.ganeshzone.net/index.php/
2011/05/geolocation-api-with-html5/

12. ASK THE BROWSER

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

14. SNIFF

15. IP SNIFFING
http://isithackday.com/hacks/geo/js-location.html

16. 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

17. INFER

19. QUERY

20. TOO MUCH TROUBLE?
TOO MANY MOVING PARTS?
TOO MANY APIS?

21. YQL

22. GEOCODING
select * from geo.placefinder where text = "iit hyderabad"
<latitude>17.34725</latitude>
<longitude>78.428177</longitude>
<city>Hyderabad</city>
<county>Hyderabad</county>
<state>Andhra Pradesh</state>
<country>India</country>
<countrycode>IN</countrycode>
<statecode>AP</statecode>
<countycode/>
<uzip>500064</uzip>
<woeid>2295414</woeid>

23. REVERSE GEOCODING
select * from geo.placefinder where text="37.416275,-122.025092"
and gflags="R"
<line1>718 1st Ave</line1>
<line2>Sunnyvale, CA 94089</line2>
<line3/>
<line4>United States</line4>
<house>718</house>
<street>1st Ave</street>
<postal>94089</postal>
<city>Sunnyvale</city>
<county>Santa Clara</county>
<state>California</state>
<country>United States</country>
<countrycode>US</countrycode>
<statecode>CA</statecode>
<uzip>94089</uzip>
<hash>23370B9241162954</hash>
<woeid>12797150</woeid>
<woetype>11</woetype>

24. WOEID
WHERE ON EARTH ID

25. WOEIDhttp://where.yahooapis.com/v1/places.q('hitech city')?appid=xyz
<place yahoo:uri="http://where.yahooapis.com/v1/place/55924382" xml:lang="en-
<woeid>55924382</woeid>
<placeTypeName code="22">Suburb</placeTypeName>
<name>Hitech City</name>
<country type="Country" code="IN" woeid="23424848">India</country>
<admin1 type="State" code="IN-AP" woeid="2345740">Andhra Pradesh</admin1>
<admin2 type="District" code="" woeid="12586344">Rangareddi</admin2>
<admin3/>
<locality1 type="Town" woeid="2295414">Hyderabad</locality1>
<locality2 type="Suburb" woeid="55924382">Hitech City</locality2>

26. WOEIDhttp://where.yahooapis.com/v1/place/55924382?appid=xyz&format=json
{
"place": {
"woeid": 55924382,
"placeTypeName": "Suburb",
"placeTypeName attrs": {
"code": 22
},
"name": "Hitech City",
"country": "India",
"country attrs": {
"type": "Country",
"code": "IN",
"woeid": 23424848
},
"locality2": "Hitech City",
"locality2 attrs": {
"type": "Suburb",
"woeid": 55924382
},
"postal": "",
"centroid": {

27. Yahoo! GeoPlanet
http://developer.yahoo.com/geo/geoplanet/

28. 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

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

30. GEO.PLACEMAKER
SELECT * FROM geo.placemaker WHERE documentContent =
"While Deepika is from Bangalore, Bipasha is from Kolkata
they predominantly act in movies made in Mumbai"
AND documentType="text/plain"
<matches>
<match>
<place xmlns="http://wherein.yahooapis.com/v1/schema">
<woeId>2295420</woeId>
<type>Town</type>
<name><![CDATA[Bangalore, Karnataka, IN]]></name>
<centroid>
<latitude>12.9558</latitude>
<longitude>77.621</longitude>
</centroid>
</place>
</match>
<match>
<place xmlns="http://wherein.yahooapis.com/v1/schema">
<woeId>2295386</woeId>
<type>Town</type>
<name><![CDATA[Kolkata, West Bengal, IN]]></name>
<centroid>

31. GEO.PLACEMAKER
SELECT * FROM geo.placemaker WHERE documentURL =
"www.telegraphindia.com/1120323/jsp/calcutta/index.jsp"
AND documentType="text/html"
<matches>
<match>
<place xmlns="http://wherein.yahooapis.com/v1/schema">
<woeId>29274615</woeId>
<type>POI</type>
<name><![CDATA[Hatibagan Market, Kolkata, West Bengal, IN]]></name>
<centroid>
<latitude>22.5944</latitude>
<longitude>88.3705</longitude>
</centroid>
</place>
</match>
<match>
<place xmlns="http://wherein.yahooapis.com/v1/schema">
<woeId>2295386</woeId>
<type>Town</type>
<name><![CDATA[Kolkata, West Bengal, IN]]></name>
<centroid>
<latitude>22.5499</latitude>

32. PUTTING IT TOGETHER
Demo: http://icant.co.uk/geomaker/index.php
Code: https://github.com/codepo8/GeoMaker

33. INTERESTING HACKS
http://trendsmap.com/local/india

34. AWESOME APPS

36. AUGMENTED REALITY
http://www.businessinsider.com/best-augmented-reality-apps-for-iphone-and-ios-2011-3?op=1

37. USEFUL RESOURCES
http://developer.yahoo.com/geo/
http://isithackday.com/hacks/geo/
http://isithackday.com/geoplanet-explorer/
http://developer.yahoo.com/geo/geoplanet/data/

38. QUESTIONS?