location based services for nokia x and nokia asha using geo2tag

LBS for Nokia X and Asha using Geo2tag

Kirill KrinkinFRUCT

kirill.krinkin@fruct.org

What is Geo2Tag

● Geo-tagging (geo-coding) platform● High performance database for spacial/temporal tag filtration● RESTful service

Geo2Tag does not provide:– map services

– data back-end (in current version)

Geo2Tag sites

Geo2Tag terminologyTag: tuple <t, L, B, H, data>,

● t – time● Coordinates (elliptic)

● b: latitude● l: longitude● h: altitude

● data – text data ~1K

Channel: classifier for group of tags

Geo2Tag: channels and tagsLBS Platform

Канал

Channel

Channel

Channel

Channel

Tag- time- coordinates- data (link)

Filtration- time- radius- figure (2D or 3D)

Tag

Tag

Tag

Geo2Tag architecture

Que

ry e

ngin

e

Session manager

HP database

BLOBs

cache

Indexer

Cluster/cloudinfrastructure

backend *)

clients

Libraries: jgeo, http_reqs

Session cache

web

Asha

web

Qt-based

Android

JSON

System cache

*) alpha version is available

Geo2Tag LBS Platform installation

Geo2Tag preparation

● Install your own server http://download.geo2tag.org● or use free test instance:

– Ask for creating service geo2tag-info@osll.ru

– Register users http://194.85.173.9:20005/register.php?db_name=dbname

Getting HERE keys

com.nokia.maps.map.MapCanvas

This class offers an abstract base class for providing a method of showing map content on a Canvas

Obtaining coordinates

Example layout

Map widget implementation

Implementation of Geo2Tag requests

Getting coordinates on device

Libraries

Nokia HERE (./plugins/maps_api/lib)– qmaps-core.jar

– maps-components.jar – Infobubles, Touchable buttons and so on

– maps-gesture.jar – Add Gesture API support

– maps-kml.jar – JSR#172 is required for KLM data

– places.jar – Geocoding and reverse geocoding

– routing.jar – Routing services

Geo2Tag For Asha:– j2megeo.jar (sources: https://github.com/geo2tag/jgeo2me)

Map widget

Basic map widget

Supports gestures

Authentication

InfoBubble

FocalObserver and centering

Centering and add commands

ClearMap command

Show nearest tags

Geo2Tag requests

doLoginRequest

doSetDbRequest

doFilterCircleRequest

doWriteTag

.doLoginRequest

.doSetDbRequest

.doFilterCircleRequest

.doWriteTagRequest

Your application’s target audience is on the move, not in a comfy chair.

© Nokia 2012 S40TT_webinar_ux_location.pptx v. 0.1 2012-05-02 Jan Krebber

Your application will be used with thumbs only.

© Nokia 2012 S40TT_webinar_ux_location.pptx v. 0.1 2012-05-02 Jan Krebber

Allow privacy.

© Nokia 2012 S40TT_webinar_ux_location.pptx v. 0.1 2012-05-02 Jan Krebber

Consider lists instead of maps.

© Nokia 2012 S40TT_webinar_ux_location.pptx v. 0.1 2012-05-02 Jan Krebber

1 2 3

Merge items on a map instead of stacking them.

© Nokia 2012 S40TT_webinar_ux_location.pptx v. 0.1 2012-05-02 Jan Krebber

1 2 3 4

Use a map thumbnail in a view that contains non-map items.

© Nokia 2012 S40TT_webinar_ux_location.pptx v. 0.1 2012-05-02 Jan Krebber

1 2

Resources

● Example: https://github.com/geo2tag/asha-map-example

● Map Forms in JavaME http://alturl.com/t99du

● Determining Current Location via Cell ID http://alturl.com/3pvxn

● Geo2Tag development resources:

– https://github.com/geo2tag

– http://geo2tag.atlassian.net/

– http://download.geo2tag.org/

Thank you.

Questions?

For more information:

● http://geo2tag.org● http://fruct.org