[OSM-talk] OSM on Garmin - raster tiles?

Karl Newman siliconfiend at gmail.com
Tue Jan 6 18:00:26 GMT 2009


On Tue, Jan 6, 2009 at 9:34 AM, Gervase Markham <gerv-gmane at gerv.net> wrote:

> When I heard about the possibility of "OSM on Garmin", I imagined
> something like the Mapnik Slippy Map on my GPS screen. Now I have a
> Legend HCx, it turns out that I get the Garmin vector rendering with OSM
> data behind it. This is clearly much better than nothing, but does the
> gmapsupp.img format support stuffing in a load of raster tiles, or is it
> vector data only? (Obviously, you'd lose the ability to route with raster.)
>
> Gerv
>

The new Colorado and Oregon models seem to support some sort of raster
images natively, as evidenced by the Ordnance Survey maps recently released
(Garmin GB Discoverer) [1]. However, the format of those is not publicly
known.

If you want to use raster images, the new Delorme PN-40 (and the older,
slower PN-20) support raster nicely, and with a $100 add-on called XMap, you
can add your own georeferenced images to your GPS, so you could use
something like slippy map tiles. Caveat if you're looking to use Delorme
maps: The currently available maps and aerial imagery from Delorme seem to
cover only the US.

Karl

[1]
http://forums.groundspeak.com/GC/index.php?s=&showtopic=205902&view=findpost&p=3778507
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