So, where is everybody?

11 ways to locate your users

Martijn Pannevis MobileDevCamp 11-08

Hey, not 11 GOOD ways

11 ways

Real world

Maps

Choices

Tag based

RFID Tags

2D Barcodes

User based

Manual Entry + Geocode

Bookmarks

Let users click maps

Enviroment

Cell based

Cell based

Handset based

Handset based

MNC

LACCELLID

MCC

Cell Database

Cell Network based

WiFi Locating

WiFi Locating

Database needed: Wardriving

WiFi Locating

Database Providers

GPS Device

Connects via Bluetooth

GPS Phone

GPS

Web Scraping / API’s

Web Scraping

In theory there is no difference between theory and practice.In practice there is

// Set criteria for selecting a location provider: // accurate to 500 meters horizontally Criteria cr= new Criteria(); cr.setHorizontalAccuracy(500); //500m LocationProvider lp=LocationProvider.getInstance(cr); // Request the location, setting a one-minute timeout Location l = lp.getLocation(60);Coordinates c = l.getQualifiedCoordinates(); if(c != null ) { // Use coordinate information double lat = c.getLatitude(); double lon = c.getLongitude(); }

JSR 179 (J2ME)

And then…

iPhone!

Maps

Web: Use JS API

Google Static map API

Slippy Maps

Tiles to cover world: For zoom level N0 1

1 2x2

2 4x4

N 22xN

18 68 719 476 736

Slippy Map tiles

Slippy Map tiles

X,Y Zoom 16

Slippy Map tiles

2X,2Y Zoom 17

2X,2Y 2X+1,2Y

2X,2Y+1 2X+1,2Y+1

Route-mehttp://code.google.com/p/route-me/

Slippy Map tiles

Questions ?

•radioflyer007• akaalias • mme •Psychosis•Delphien Experiences • iko •urban penguin •darkmatter •monkeyc.net •Josh Dionne •dsevilla •bitzcelt •güneş in wonderland

•Boris Veldhuijzen van Zanten •KhE 龙 •Orin Optiglot •moriza •TU Delft Library •c@rljones •Sarah Parrott •Mysterious Mimir •fabioperez •powerbooktrance •pchweat •Storm Crypt

Flickr Pictures by:

Other sources

OpenStreetMapGoogle MapsHolux.comTwitterFireeagleFuturistmovies.com Sun.comApple.comAntenneregister.nlNavizonSkyhook

Thanks

www.martijnpannevis.nlmail@martijnpannevis.nl