[Talk-us] Garmin OSM map for whole US
Dave Hansen
dave at sr71.net
Sat Sep 5 18:23:33 BST 2009
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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