[mkgmap-dev] Style function is_connected ?

Mon Feb 25 14:42:28 GMT 2013

On Mon, Feb 25, GerdP wrote:

> Hi Thorsten,
> 
> yes, what else should happen?

That was my answer to your 
"I doubt that it causes problems when such a way is marked as a road. 
 A routing algo should not use it to get out of the square."

I agree with "A routing algo should not use it", but they are using
it and it causes problems.
And yes, such ways should always be connected :(

  Thorsten

> According to the OSM data there is no wait out,
> or do I miss something? Would the device search another road which is close?
> 
> Besides that, the question is where you want to stop. If two ways are
> connected to each other, but
> not to any other road, should they be routable? Three, four... ? I am not
> sure if we already have an algo that finds such independent networks, but
> it's a standard problem in graph theory and it can be solved in
> an acceptable run time.
> 
> Gerd
> 
> 
> Thorsten Kukuk wrote
> > On Mon, Feb 25, GerdP wrote:
> > 
> >> On the other hand, I doubt that it causes problems when such a way is
> >> marked
> >> as
> >> a road. A routing algo should not use it to get out of the square.
> > 
> > If you are inside the square, all Garmin devices/software tools
> > will use the nearest available way and then report an routing error.
> > So, yes, it is a problem ...
> > 
> >   Thorsten
> > 
> > -- 
> > Thorsten Kukuk, Project Manager/Release Manager SLES
> > SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg
> > GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)
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> 
> 
> 
> 
> 
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Thorsten Kukuk, Project Manager/Release Manager SLES
SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)