Tangogps or navit with prepackaged Europe map
tilman at baumann.name
Thu May 28 15:58:05 CEST 2009
arne anka wrote:
>> Since the 'bin' format is a .zip file with lots of smaller files in
>> it, unzipping the (europe).zip file won't grow the data much...
> that's actually quite interesting! it never occured to me to analyze the
> resulting file.
> so, which map format would be faster -- navit or osm?
> the same map in osm being far bigger suggests somehow that less cpu is
> necessary ...
I'm not sure I'm getting the point here.
But the navit format is binary and the osm format is (zipped) xml.
The navit binfile format is clearly more economical.
osm files contain redundant informations and the xml needs to be parsed
and built into a in memory structure (i guess) and the binfile format is
basically a memory format and as far as I can read it mmappable.
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