[Routing] Binary file format

[Adrian Stabiszewski]

Thanks for pointing this out. I've just found the definition of the Garmin
file format here:
http://sourceforge.net/project/showfiles.php?group_id=125392

Well, I think that it would be unwise to use a proprietary file format for
OSM, but let's see what we can learn from it ;)
 

> -----Ursprüngliche Nachricht-----
> Von: routing-bounces at openstreetmap.org [mailto:routing-
> bounces at openstreetmap.org] Im Auftrag von Andreas Brauchli
> Gesendet: Montag, 10. Dezember 2007 23:02
> An: routing at openstreetmap.org
> Betreff: Re: [Routing] Binary file format
> 
> 
> On Mon, 2007-12-10 at 22:50 +0100, Adrian Stabiszewski wrote:
> > > Yes, a binary-format would be a great thing to have. I don't quite see
> > > what you mean with junction-node but maybe you could do a first
> outline
> > > of a format or a list of reqirements that you see for it.
> > > We could start from there.
> 
> garmin uses a binary format that makes sense for saving all kind of POIs
> and streets and it also uses this for routing, not sure if it's
> optimized for routing though. it can save several layer of precisions
> (you don't want footways to appear on global scale) but you'd need this
> for routing your walk from Canada to Mexico.
> would this format be for routing only or also for map-display? (maybe
> with pre-computed paths (pathtrees) on highways or frequently used roads
> for every region)
> 
> i think mkgmap's creator would be the most useful resource on this.
> 
> andreas
> 
> 
> 
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