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

Thu Mar 8 19:47:39 GMT 2018

Thanks Gerd, I will do some tests on Saturday and then report back.

Felix

On 8 March 2018 at 11:46, Gerd Petermann <gpetermann_muenchen at hotmail.com>
wrote:

> Hi Felix,
>
> attached is a patch that improves WrongAngleFixer.
> When both ways build a junction and both have another point close to that
> junction
> and in OSM they are different nodes mkgmap tries harder to avoid that they
> are rounded to the
> same coordinate. This is what happened with these two nodes
> https://www.openstreetmap.org/node/1263658804
> https://www.openstreetmap.org/node/1195812701
>
> I found similar situations at some roundabouts, sometimes a way connected
> to the roundabout and the roundabout way
> overlap.
> I am not sure how this patch works with your style, please try it with
> r4131.
>
> A few special cases to look at:
> https://www.openstreetmap.org/way/208976154  Coordinates: 38.4082747,
> 16.0787201
> https://www.openstreetmap.org/way/312642720   Coordinates: 39.0259441,
> 8.5967561
> https://www.openstreetmap.org/way/148634420    Coordinates: 41.981263,
> 12.4114831
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
> Felix Hartmann <extremecarver at gmail.com>
> Gesendet: Samstag, 3. März 2018 19:49:24
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Bug in Road Merging - actually doubling roads.
>
> well in general 0x16 is not avoided by any transport means (or at least it
> was not a couple of years ago when I checked the influence of types= -
> that's strange. 0x01 and 0x02 are avoided by bicycle - but in general I
> never use avoidances except toll and unpaved - they are pretty straight
> forward. I should do some checks again if something changed with activity
> routing over the years.
> If 6 ways on top of each other are routable problems are common (but do
> not have to occur - not sure why).
>
> (oh yeah I forgot to say to add the route=hiking to relations file, I
> assumed that is clear as it's a route and they are always relations).
>
> On 3 March 2018 at 15:27, Gerd Petermann <gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>> wrote:
> Hi Felix,
>
> okay, found out again why merging before angle fixing doesn't work, but I
> still have no clue why this junction would cause trouble reg. routing
> with a normal mkgmap binary.
>
> Gerd
>
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:mkgmap-
> dev-bounces at lists.mkgmap.org.uk>> im Auftrag von Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>
> Gesendet: Samstag, 3. März 2018 11:34:24
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Bug in Road Merging - actually doubling roads.
>
> Hi Felix,
>
> I just noted that I got my results reg. the modified default style with a
> modified StyledConverter which does the road merging before the wrong angle
> fixing.
> Something goes very wrong with this patched version.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:mkgmap-
> dev-bounces at lists.mkgmap.org.uk>> im Auftrag von Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>
> Gesendet: Samstag, 3. März 2018 11:01:42
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Bug in Road Merging - actually doubling roads.
>
> Hi Felix,
>
> no, it is just special at this juntion because the other ways have 0x8 or
> 0x13.
> On thursday I wrote that I was able to reproduce a problem at this
> junction but I forgot to set up routing
> for car (automotive) :-(
> I can reproduce a problem with "tour cycling", but I think that is
> expected with your style,
> because it avoids main roads by default. Maybe your users made the same
> error?
>
> You suggested to add
> route=hiking [0x13 road_class=4 road_speed=2 resolution 24 continue]
> to reproduce a problem. I tried that with no effect. Only after I added a
> rule in the relations file:
> type=route & route=hiking {
>     apply {
>         add route=hiking
>     }
> }
> With that I see additional routable lines in the map and routing is more
> less broken at node 412440328 when
> I try to route from north to anywhere below the node , also the inverse
> way doesn't work.
> I tried different variants of the rule like other types or other road
> classes, always saw the same problem.
> I see working routing again when I remove way 130665733 from the input
> file and move node 1263658617
> down to 412440328 and merge them (see attached file).
> I'll try to find out why this is so special in this situation.
>
> ciao,
> Gerd
>
>
>
>
>
>
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:mkgmap-
> dev-bounces at lists.mkgmap.org.uk>> im Auftrag von Felix Hartmann <
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>
> Gesendet: Freitag, 2. März 2018 22:21:35
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Bug in Road Merging - actually doubling roads.
>
> Well in general 0x16 does not cause any problems. Do you think if I use
> another type instead (e.g.) 0x13 it won't be problematic, or do you mean
> that the 0x16 in itself is the problem?
>
> On 1 March 2018 at 18:55, Gerd Petermann <gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:g
> petermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>>
> wrote:
> Hi Felix,
>
> okay, I think I can reproduce a routing problem on my Oregon with your map.
> I have a route that works from south to north but not in the reverse
> direction.
> I'll try to create a similar situation with a modified default style to
> find out
> what the problem is. My current prime suspect is the way with type 0x16.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:mkgmap-
> dev-bounces at lists.mkgmap.org.uk><mailto:mkgmap-dev-bounces@
> lists.mkgmap.org.uk<mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk>>> im
> Auftrag von Felix Hartmann <extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>
> Gesendet: Donnerstag, 1. März 2018 18:09:02
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Bug in Road Merging - actually doubling roads.
>
> routing issues is on devices only - not in Basecamp. Reported so far from
> Oregon and Edge - routing from North to East over that road.
>
>
> Well what I thought was that mkgmap should check if another road is put
> above. Right now it's 1 road supposed to be there, 2 and 3 roads
> overlapping due to that road being too short. Those overlapping somehow
> would need to be removed (and yes I know they are originally not the same
> line). My style should I think in maximum create 4 routable lines - however
> due to overlapping of other lines (due to the sub 4.3m line) it ends up a
> short stretch with more than 5 routable lines.
>
> On 1 March 2018 at 17:47, Gerd Petermann <gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:g
> petermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>>>> wrote:
> Hi Felix,
>
> Felix Hartmann-2 wrote
> > Okay - no-merge-lines makes no difference, also removing
> > addArcsToMajorRoads();
> > function makes no difference. And I just noticed - the patch does not
> > work.
> > It works in it's own way - but not achieving the result that is needed.
> > Whatever I do - I still end up with 6 routable lines.
> >
> > I guess the patch checks for each road that it is not more than 4 times
> in
> > the map. So I end up with 1, 2, and 3 (1 that is supposed to be in the
> > map,
> > 2 from the east not supposed, and 3 from the south, not supposed).
> (always
> > using gpsmapedit to check results).
>
> yes, that is what it does. Didn't you suggest something like that?
>
> You still did not tell me how I can reproduce a crash with this data, so I
> can only guess.
> I didn't see any routing issues so far with your maps, only the ugly
> rendering.
> Is this the only problem or is there really a routing issue?
> If yes, please let me know how to reproduce 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
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> mkgmap.org.uk>>
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>
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
> Schusterbergweg 32/8
> 6020 Innsbruck
> Austria - Österreich
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>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
> Schusterbergweg 32/8
> 6020 Innsbruck
> Austria - Österreich
>
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-- 
Felix Hartman - Openmtbmap.org & VeloMap.org
Schusterbergweg 32/8
6020 Innsbruck
Austria - Österreich
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