Hi Felix,

sorry to hear. I am running out of ideas for a simple patch  :-(
Maybe it is not the number of arcs with the same initial bearing but the number 
of arcs going to the same destination node.

Anyway, seems we really have to remove overlapping parts of roads much earlier 
to make your style work in that situation,
and I think this would open a new box of worms reg. housenumbers, turn 
restrictions and so on, in other words,
I fear we might add a lot of complex code that is rather bad for other users.
So, maybe it would be better to just fix those errors in OSM? 

Gerd

________________________________________
Von: mkgmap-dev <[email protected]> im Auftrag von Felix 
Hartmann <[email protected]>
Gesendet: Mittwoch, 28. März 2018 23:10:16
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Bug in Road Merging - actually doubling roads.

Sorry for taking so long - needed to setup a new desktop computer with my old 
mainboard dead. The new patch does not really seem to improve anything. It's 
not dropping the route in simulation mode anymore - but getting stuck and not 
routing along.

On 23 March 2018 at 09:50, Felix Hartmann 
<[email protected]<mailto:[email protected]>> wrote:
Well all the problems about problematic arcs so far came up from a combination 
of two things:
a) my style creates two additional ways (bit different road_class/road_speed 
based on input) if the following is met: route relation hiking, bicycle or mtb 
| ( mtb:scale>0 & mtb:scale<5) | class:bicycle>1. Additionally if a road is 
oneway - and it's a low level road (so neither 
motorway,trunk,primary,secondary,tertiary) - and oneway, a low class/speed non 
oneway road is added as well (intention to have lower priority against the 
oneway than driving with the oneway direction. Also additionally if bicycle 
lane against the traffic flow is possible, it will create a line against the 
oneway.
b) mistakes in OSM data where wrongly several objects lie on top of each other.


Sorry my computer crashed yesterday evening, and I cannot boot it right now. 
Seems my Mainboard is dead. So I probably won't have possibilities for testing 
before Monday or Tuesday.

On 23 March 2018 at 09:39, Gerd Petermann 
<[email protected]<mailto:[email protected]>> wrote:
Hi Henning,

Henning Scholland wrote
> Hi Gerd, I just was thinking about if one road is leaving the roundabout
> at two angles it may count on the Garmin as two roads and will lead to
> 'exit on 3rd exit' instead of 'exit on 2nd exit' for example.
>
> But I haven't gave it a try yet.
> ⁣

ah, okay, got it. I think Garmin should calculate the number for the exit
without "thinking" about the further
route but who knows.
I'd like to test it on my own but I found it too difficut to create a style
that tries to do the same as Felix'
style, and you don't get the same results when you simply add overlapping
highways in JOSM.

I am not aware of another style that adds multiple routable ways for one OSM
way, and Felix doesn't want to share his, so testing is his work. I can only
make educated guesses about the effects,
and of course I'll test it with other styles before committing it.

Gerd









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--
Felix Hartman - Openmtbmap.org & VeloMap.org
Schusterbergweg 32/8
6020 Innsbruck
Austria - Österreich



--
Felix Hartman - Openmtbmap.org & VeloMap.org
Schusterbergweg 32/8
6020 Innsbruck
Austria - Österreich
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