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[mkgmap-dev] [PATCH v2] - fix routing problems caused by way's bbox being too large

From Marko Mäkelä marko.makela at iki.fi on Wed Nov 4 10:17:48 GMT 2009

Hi Mark,

> > I just did, testing the bicycle route to Kuortti that I mentioned in
> > http://wiki.openstreetmap.org/wiki/Mkgmap/routing/issues#Bad_bicycle_routing
> > a couple of months ago.  It still makes the detour.  It is most likely an
> > issue with Garmin's routing algorithm, not with the map.
> Yes, but at least it didn't obviously break anything. That's good.

Indeed.  I should perhaps have stated it more explicitly.

On the other hand, routes to central Helsinki are broken ("route calculation
error"), with or without the patch, for foot and bicycle but not car.
It is probably due to broken map data.  I remember a similar issue several
months ago.  I will save the source files, so that I can investigate if the
problem persists with tomorrow's dump.


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