[OSM-talk] SVG tiles

Frederik Ramm frederik at remote.org
Mon Apr 21 19:12:23 BST 2008


Hi,

>    I have developed a mobile-phone Java app (called 'mom') to navigate OSM
>    maps and save GPX tracks (amongst other things) which will soon be out
>    there for people to download. It uses mapnick PNG tiles at 5 of OSM's
>    scales (3, 6, 9, 12 & 15) which look nice but are quite big files to
>    download to a phone (typically 12kB-15kB for scale 15) so take a
>    significant amount of time and eat into a user's data allowance to fetch.
>    I considered using the compact binary downloads aimed at mobile apps, but
>    this is raw data and the graphics limitations of mobile Java mean the maps
>    drawn from it would not look very pretty.

Check the source for the Java app "traveling salesman" (on
Sourceforce). I believe there's code in there to (a) compact OSM data
for use on a mobile device and (b) render maps from said compacted
data.

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"





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