[mkgmap-dev] Please test branch NET-no-NOD

Sat Oct 12 18:34:29 BST 2019

Hi Gerd

I was thinking of a threshold (maybe < 5) and then not adding any of
them to NOD.

The reason is that a while ago I found many instances where tracks lead
up to the edge of car-parks but didn't join to each other or the car
-park access road and so walking routing, where one was expected to
cross the car-park, didn't work. I tried adding a footway around the
edge of the car-park and this helped in a lot of cases but I got
driving route-calculation-error in or out of the car-park if the access
road wasn't correctly specified. Your latest change will help in a lot
of instances but sometimes there car-park was defined by more than 1
line.

Ticker

On Sat, 2019-10-12 at 10:10 -0700, Gerd Petermann wrote:
> Ticker Berkin wrote
> > Do you attempt to isolate small road networks that are not
> > connected to
> > the rest of the system or just a single road?
> 
> Not yet. Do you think about some kind of threshold value giving the
> minimal
> number of connections or maybe a bbox size or a sum of road lengths?
> if the
> isolated network is "small" we might not add any of its roads to NOD.
> Is that what you think about?  
> 
> Gerd
> 
> 
> 
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