[Talk-us] Garmin OSM map for whole US

[Apollinaris Schoell]

Here you can request and download any region of the planet. currently  
there are still some problems with the splitting in US
http://garmin.na1400.info/routable.php
Your approach will not allow routing across states because Cloudmade  
maps clip at state boundaries.
If you can write script to combine the maps it's as simple to create  
all of them yourself based on a planet file or US planet extract.
have done only the western states not whole US yet but should run in  
less than a day on a reasonable computer.
process is
- planet file
- osmosis to download diff files incrementally
- osmosis to clip area
- splitter to split tiles. first time is try and error until tiles are  
small enough. subsequent runs use same tile size for updates
- mkgmap to compile

Can try next week to run whole US for runtime stats and scripts to  
share. need to prepare for some hiking trip now ....


On 5 Sep 2009, at 10:23 , Dave Hansen wrote:

> For those of you that don't know, Cloudmade has some really cool
> ready-made maps available for download.  I know they work on Garmin
> devices, but there are probably some others.
>
> 	http://downloads.cloudmade.com/north_america/united_states
>
> The problem is that they're made one state at a time.  I'm lazy, so I
> buy large cards for my GPSes and load the whole country on them so I
> don't ever have to reload maps.  But, with the Cloudmade maps, I  
> have to
> only load a single state at a time.  If I want another state, I have  
> to
> take the card out (or plug the GPS in) and move another state's
> gmapsupp.img file in.
>
> Well, mkgmap has come to the rescue:
>
> 	http://www.mkgmap.org.uk/index.html
>
> It allows you to combine several gmapsupp.img files.  I've downloaded
> all of the US states (plus a few territories), and fed them through
> mkgmap.  The result is a single file you can put on your Garmin GPS  
> for
> the whole country.  I've also stuck the bash script in here so you can
> see how I did it:
>
> 	http://dev.openstreetmap.org/~daveh/garmin/
>
> Just download, bunzip2, rename USA.$DATE.gmapsupp.img to plain
> 'gmapsupp.img' and move it over to your device.
>
> There are a couple of little issues with the way roads get drawn.   
> Some
> little residential roads get drawn in bold red (is this from the  
> OSM.err
> stuff?).  So, if you know the Cloudmade people who are working on  
> this,
> I'd like to get in touch with them to make a few minor tweaks.  I'd  
> also
> like to get this off of the dev server and put somewhere a bit better
> for downloading such a big file.
>
> Can anybody at Cloudmade want to share the scripts/programs that are
> creating these files?
>
> Does anybody else have some nice USA extracts that could be used for
> making garmin maps?
>
> -- Dave
>
>
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