Revision as of 13:37, 13 January 2009

Weybridge/UK example map	NYC subway map
Political world map	Political world map
Sheffield Supertram map	Public transportation in Munich
Mobile streetmap of Cambridge (multiresolution)	An image created by NASA's Visible Earth project
	Mobile streetmap of Weybridge (multiresolution)

Maps for J2ME mobile phones

You can download some interactive maps for mobile phones with J2ME/MIDP (Java 2 Micro Edition) as JAR files. If you want to download the file using GPRS you have to use the link to the JAD file instead. Please refer to your mobile-phone's manual on how to install Java programs. E-mail me, if you find a bug in the software.

The size of each software package is mentioned. Note, that temporarily you will need twice as much memory on your mobile, because the JAR-file will only be deleted after installation. You can put comments and submit ratings at getjar.com.

If you want to compile or emulate the software on your PC, you need to download the Java 2 Micro Edition (J2ME) Wireless Toolkit.

Weybridge example map

The map was taken from openstreetmap.org (License: GFDL).

• MobiNav.jar (191 kByte) Java archive
• MobiNav.jad description file
• MobiNav.tar.gz (176 kByte) source code and map-tiles (license: GPL)
• splitmap.rb (638 bytes) source code of Ruby script for splitting up an input file into map-tiles (requires HornetsEye)

Note, that for creating map-tiles yourself you need to provide maps for several resolutions (multiresolution pyramid). If you don't have a multiresolution map, you need to scale the input image down to 50% multiple times. You can use the command-line tool convert which is part of ImageMagick to do this:

convert map.png -scale 50%% map2.png
convert map2.png -scale 50%% map3.png
convert map3.png -scale 50%% map4.png
convert map4.png -scale 50%% map5.png
convert map5.png -scale 50%% map6.png

Note that each dimension of the last pyramid level (here: map6.png) must not be bigger than the tile size (here: 128)! Afterwards you can create the tiles using the Ruby script splitmap.rb:

./splitmap.rb map.png 128 5
./splitmap.rb map2.png 128 4
./splitmap.rb map3.png 128 3
./splitmap.rb map4.png 128 2
./splitmap.rb map5.png 128 1
./splitmap.rb map6.png 128 0

It is also recommended to compress the resulting map tiles by reducing the number of colours (no dithering!). To do this move the map-tiles into an empty directory and compress the map tiles as follows:

mkdir targets
for i in *.png; do convert $i -depth 8 -colors 32 +dither target/$i; done

Political world map

The map was taken from the The World Factbook (License: public domain).

• WorldMap.jar (1370 kByte)
• WorldMap.jad

Visible Earth

The picture was taken from the Visible Earth project (License: public domain).

• VEarth.jar (1314 kByte)
• VEarth.jad

Munich public transportation map

The map was taken from de.wikipedia.org (License: GFDL).

• VerkehrsnetzMuenchen.jar (472 kByte)
• VerkehrsnetzMuenchen.jad

New York City Subway Map

This NYC subway map originated from www.nycsubway.org (License: public domain).

• NYCSub.jar (1657 kByte)
• NYCSub.jad

Sheffield Supertram map

The map was taken from en.wikipedia.org (License: Creative Commons Attribution-ShareAlike 2.0 Canada)

• Supertram.jar (67 kByte)
• Supertram.jad

Cambridge multiresolution map

Thanks to the work of the OpenStreetMap community it is now possible to create free multiresolution streetmaps for mobile phones! Free multiresolution maps is a valuable addition to the worlds inventory of free data. The data is subject to the terms and conditions of the Creative Commons Attribution ShareAlike License v. 2.0.

• Cambridge.jar (1663 kByte)
• Cambridge.jad

Weybridge multiresolution map

Now there also is a free multiresolution streetmap of Weybridge for J2ME mobile phones. The data is provided by the OpenStreetMap community and subject to the terms and conditions of the Creative Commons Attribution ShareAlike License v. 2.0.

• Weybridge.jar (1966 kByte)
• Weybridge.jad

Further ideas

• Sky atlas
• Lunar atlas

External Links

• Maps for mobile phones at www.wedesoft.demon.co.uk
• J2ME SDK
• Maemo-Mapper is a free mobile map software for Nokia 770 (GPL) (hosted at garage.maemo.org)
• GpsMid J2ME displaying multiresolution streetmaps by rendering OSM vector data
• Free streetmaps for mobile phones
• Download subway maps for iPods
• OpenStreetMap project now kindly supported by Multimap! Also see OpenStreetMap component overview.
• Openmap software
• German motorways (copyrighted)
• This software and other mobile phone applications at getjar.com
  • MunichTransport
  • WorldMap
  • Shopping List
  • FirstPastThePost is a horce-racing game
  • Compass gives the position of sun and moon to determine true north
  • London street map developed by JTrustN
  • London Tube Map (and London Street Map)
• J2ME open source software
• Yoda decision maker
• Bomber for J2ME
• Moon phase calculator for mobile phones
• Eclipse Calculator
• Solun'-u is a small planetarium (don't confuse sun and moon, they're both yellow)
• Compare mobile phones at gsmarena.com
• NASA's Visible Earth project
• benhui.net has some interesting information on how to use Bluetooth
• Tiger Map Server Browser
• Mobile Gmaps
• Mobile Google map client
• J2MEmap
• MidpSSH