[mkgmap-dev] Bug in Road Merging - actually doubling roads.

Thu Mar 29 12:48:46 BST 2018

Hi Gerd,
A hopefully easy solution could be to just take the first connection between two nodes and if there will be a second one, just copy name-tag for house numbers and then skip that second way. Or just report them. Can be two options like: - - duplicate-ways=remove/report

Henning 

On 29 Mar 2018, 09:32, at 09:32, Gerd Petermann <gpetermann_muenchen at hotmail.com> wrote:
>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 <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
>Felix Hartmann <extremecarver at gmail.com>
>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
><extremecarver at gmail.com<mailto:extremecarver at gmail.com>> 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
><gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>
>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
>
>
>
>
>
>
>
>
>
>--
>Sent from:
>http://gis.19327.n8.nabble.com/Mkgmap-Development-f5324443.html
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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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>mkgmap-dev at lists.mkgmap.org.uk
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