Your SlideShare is downloading. ×
0
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Layar Development on the PorPOISe platform
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Layar Development on the PorPOISe platform

5,001

Published on

Slides of my workshop for the Layar Developer Day held June 19th, 2010 in Amsterdam. …

Slides of my workshop for the Layar Developer Day held June 19th, 2010 in Amsterdam.

Introduction to the PorPOISe platform as a Layar API server.

Published in: Technology, Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
5,001
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
43
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Layar Development on the PorPOISe platform Layar Development Day 19 June 2010
  • 2. The Layar API • Based on HTTP requests: • much like a regular web request • contains user location (and more) • Response (JSON): • Point Of Interest Objects (POI) • layer metadata
  • 3. Implementations • Roll your own • basic cases are pretty simple • you really learn how Layar works • Use an existing framework • don’t reinvent the wheel • more complicated scenarios are implemented... • ...or easy to add (contribute!) • the programmers virtue: be lazy!
  • 4. The PorPOISe Platform
  • 5. PorPOISe • Open Source Layar Application Server • permissive BSD license • well designed, OO architecure • runs under a standard PHP web server • out of the box support for XML file and database sources • 3 POI types: point, 2D, 3D objects • basic web app and web view templates • support for standard oAuth
  • 6. PorPOISe Setup • Download distribution • http://code.google.com/p/porpoise • Upload to webserver • Configuration: • add developer details to config.xml • add layar description to config.xml • Deployment: • add porpoise endpoint to Layar deployment site
  • 7. The AR content • This is the central part: where the POIs come from • A few options...
  • 8. XML file <?xml version="1.0" encoding="utf-8"?> <pois> <poi> <id>1</id> <title>Parking lot</title> <line2>Central parking, free</line2> <line3>Open all day</line3> <line4>Wheelchair accessible</line4> <lat>52.234127</lat> <lon>4.959914</lon> <imageURL>http://maps.google.com/icons/parkinglot.png</imageURL> <attribution>(c) TABworldmedia.com</attribution> <type>1</type> <action> <uri>http://my.server.com/action1</uri> <label>Make reservation</label> </action>
  • 9. XML advantages • Easy to create, no programming! • No additional configuration needed • performs well for up to a few hundred POIs total • When to use • small projects • prototypes • as part of a XML / XSL transformation chain
  • 10. XML (continued) • Bonus: google maps conversion stylesheet! • example: Vinkeveense plassen (diving layer) • easy to set up, demo later if time permits!
  • 11. Database • Still no programming! • just a DB schema: • POI • Action • Object (2/3D) • Transform (2/3D) • User • optional, for oAuth
  • 12. Database advantages • Robust and can be more secure • Performs well for many thousands POIs • When to use • large projects • high performance needed • dynamic content, user authentication • complex selection criteria
  • 13. API gateway • The PorPOISe server acts as a converter between a geo-location aware service and Layar • Example: Twitter (tweepsaround), Foursquare, Gowalla • Still just one method to implement: • iPOIConnector::getPOIs(Filter $filter); • extend WebApiPOIConnector for oAuth support
  • 14. Virtual POI server • The PorPOISe server generates “virtual POIs” relative to the observer • Great for screenshot layers • again just one method to implement: • iPOIConnector::getPOIs(Filter $filter);
  • 15. Demo: orangedress • Last week, ladies in orange dresses got arested because of strict FIFA rules • It turned out to be a guerilla marketing stunt which got huge press attention • Today the “Orange Dress Ladies” will not be at the football match • Or... will they?
  • 16. Demo: orangedress • Let’s produce a real layer: put the Orange Dress Ladies in the middle of Moses Mabhida Stadium - in AR • locate stadium on Google Maps • create XML file • adapt PorPOISe configuration • upload files & graphics • request publication... • ...done!
  • 17. Future • PosPOISe is Open Source so you can contribute! • Some ideas: • implement the API changes we discuss today • write a test suite (SimpleTest is great!) • performance optimization • new database schemas • implement true geohashing for 1 billion POI projects • ...anything goes!
  • 18. Credits PorPOISe is created by Jens de Smit from SurfNET twitter: @jfdsmit Contributions from Squio.nl > and you!? http://code.google.com/p/porpoise
  • 19. Thank you! @jlapoutre Johannes@TABworldmedia.com

×