[clug] tomtom one

Andrew Loughhead andrew at incanberra.com.au
Thu Aug 2 11:10:13 GMT 2007

Stephen Gibson wrote:
>> So I'm surprised that in this discussion, no one has mentioned the
>> proprietariness of the underlying map data yet!  I'd encourage you all
>> to have a peek at the openstreetmap project.
> There is also "shonkey maps" for Garmin GPS:
>  http://www.gpsaustralia.net/forums/showthread.php?t=2525
> which uses a more sophisticated approach.
> The 1:250000 series of topographic maps, available in digital format
> from the Commonwealth mapping agency, that cover all of Australia,
> were converted to Garmin proprietary format.
Where it exists, OSM data is at a rather larger scale, comparable to a
published street directory, which would be in the 1:12500 region.  
Quarter million data has its use, but I wouldn't try navigating central
Sydney with it...

> They contain all the detail, including contour lines
> etc, of the original topographic maps.
> Steve.

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