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

Tue Mar 20 00:17:37 GMT 2018

Somehow the patch is putting out quite a bit stuff that seems fine even set
to 10 - I did find one way that breaks routing on device though

http://www.openstreetmap.org/browse/way/310376420
Something is really strange here - the problematic section is the bridge to
the East, and with ID I cannot properly select it.
Problematic tile: https://openmtbmap.org/63670040.img
Routing over it on my Oregon 600 in simulation mode - it get's stuck as
soon as it reaches the bridge.

I have now changed my style, before if a route contained a bridge, there
was supposed to be no extra routable line created for the bridge, this did
not work in all cases due to the discussed bug. I changed my style to
create no extra routable line for a bridge if part of a relation, but this
did not work either, I'm still ending up with 8 routable lines instead of 3
for the bridge itself. Very strange.

In general I think quite often it is adjoining ways that are more likely to
be problematic. Not so easy what to do with all this long list as often it
did not create more than 2-3 routable lines. The most were 8 (linked
above). I'm now trying to see what it gives for my changed style. I did go
through my style, and without this bug the style should create no more than
4 routable lines at most for a single street (yes this does not solve if
there are two streets that get put on top of each other, because of super
detailed mapping). However as in the above linked example that was not the
case.

This is a case where in OSM there is already overlapping data - I'll give
it a better check tomorrow:
https://www.openstreetmap.org/way/358035804#map=16/44.5885/7.8644

SEVERE (RouteNode): E:\openmtbmap\maps\63670018.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
41.099468,14.210138 when routing to 177░ (http://www.openstreetmap.org/
browse/way/231702644)
SEVERE (RouteNode): E:\openmtbmap\maps\63670040.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.594210,7.870896 when routing to 166░ (http://www.openstreetmap.org/
browse/way/268949386)
SEVERE (RouteNode): E:\openmtbmap\maps\63670040.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.594024,7.870959 when routing to 347░ (http://www.openstreetmap.org/
browse/way/268949386)
SEVERE (RouteNode): E:\openmtbmap\maps\63670040.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.589474,7.868189 when routing to 230░ (http://www.openstreetmap.org/
browse/way/358035804)
SEVERE (RouteNode): E:\openmtbmap\maps\63670040.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.595358,7.869657 when routing to 186░ (http://www.openstreetmap.org/
browse/way/358035804)
SEVERE (RouteNode): E:\openmtbmap\maps\63670040.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.593348,7.870952 when routing to 7░ (http://www.openstreetmap.org/
browse/way/268949386)
SEVERE (RouteNode): E:\openmtbmap\maps\63670040.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 44.528092,7.857529
when routing to 132░ (http://www.openstreetmap.org/browse/way/310376420)
SEVERE (RouteNode): E:\openmtbmap\maps\63670040.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 44.527925,7.857784
when routing to 313░ (http://www.openstreetmap.org/browse/way/310376420)
SEVERE (RouteNode): E:\openmtbmap\maps\63670035.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.103926,10.499103 when routing to 12░ (http://www.openstreetmap.org/
browse/way/261283126)
SEVERE (RouteNode): E:\openmtbmap\maps\63670036.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.197738,9.560527 when routing to 306░ (http://www.openstreetmap.org/
browse/way/216391711)
SEVERE (RouteNode): E:\openmtbmap\maps\63670034.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
43.462818,10.589772 when routing to 260░ (http://www.openstreetmap.org/
browse/way/131304170)
SEVERE (RouteNode): E:\openmtbmap\maps\63670054.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 45.658185,10.045777
when routing to 46░ (http://www.openstreetmap.org/browse/way/50847847)
SEVERE (RouteNode): E:\openmtbmap\maps\63670057.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
46.171695,9.870816 when routing to 327░ (http://www.openstreetmap.org/
browse/way/503763128)
SEVERE (RouteNode): E:\openmtbmap\maps\63670059.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.690630,9.675076 when routing to 248░ (http://www.openstreetmap.org/
browse/way/50730378)
SEVERE (RouteNode): E:\openmtbmap\maps\63670067.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.142950,9.170384 when routing to 85░ (http://www.openstreetmap.org/
browse/way/243855717)
SEVERE (RouteNode): E:\openmtbmap\maps\63670066.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.488240,9.195559 when routing to 201░ (http://www.openstreetmap.org/
browse/way/262420957)
SEVERE (RouteNode): E:\openmtbmap\maps\63670066.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.488326,9.195591 when routing to 195░ (http://www.openstreetmap.org/
browse/way/262420957)
SEVERE (RouteNode): E:\openmtbmap\maps\63670070.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.586536,8.924042 when routing to 235░ (http://www.openstreetmap.org/
browse/way/450869558)
SEVERE (RouteNode): E:\openmtbmap\maps\63670072.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.598025,13.786274 when routing to 68░ (http://www.openstreetmap.org/
browse/way/26661412)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.736224,12.736811 when routing to 94░ (http://www.openstreetmap.org/
browse/way/444595723)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.736221,12.736862 when routing to 275░ (http://www.openstreetmap.org/
browse/way/444595723)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.733896,12.733320 when routing to 145░ (http://www.openstreetmap.org/
browse/way/166104158)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.733569,12.733668 when routing to 325░ (http://www.openstreetmap.org/
browse/way/166104158)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 42.735211,12.734411
when routing to 19░ (http://www.openstreetmap.org/browse/way/115921194)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 42.735631,12.734614
when routing to 19░ (http://www.openstreetmap.org/browse/way/115921194)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.737543,12.738809 when routing to 348░ (http://www.openstreetmap.org/
browse/way/205144591)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.991118,12.671455 when routing to 176░ (http://www.openstreetmap.org/
browse/way/226058688)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.990426,12.671494 when routing to 0░ (http://www.openstreetmap.org/
browse/way/226058688)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.733015,12.737255 when routing to 48░ (http://www.openstreetmap.org/
browse/way/394187014)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.737876,12.738618 when routing to 155░ (http://www.openstreetmap.org/
browse/way/205144591)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 42.735138,12.
735350 when routing to 19░ (http://www.openstreetmap.org/
browse/way/524788388)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.736208,12.736964 when routing to 280░ (http://www.openstreetmap.org/
browse/way/444595723)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.736087,12.737346 when routing to 306░ (http://www.openstreetmap.org/
browse/way/166123198)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 42.735055,12.734571
when routing to 289░ (http://www.openstreetmap.org/browse/way/115921194)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 42.735651,12.736162
when routing to 307░ (http://www.openstreetmap.org/browse/way/166104131)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.737428,12.738789 when routing to 13░ (http://www.openstreetmap.org/
browse/way/205144591)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.738709,12.740727 when routing to 340░ (http://www.openstreetmap.org/
browse/way/205131584)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.989677,12.671807 when routing to 149░ (http://www.openstreetmap.org/
browse/way/77223727)
SEVERE (RouteNode): E:\openmtbmap\maps\63670076.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.930978,13.089920 when routing to 3░ (http://www.openstreetmap.org/
browse/way/67628358)
SEVERE (RouteNode): E:\openmtbmap\maps\63670077.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 42.535039,12.757507
when routing to 288░ (http://www.openstreetmap.org/browse/way/62229017)
SEVERE (RouteNode): E:\openmtbmap\maps\63670077.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.534998,12.757686 when routing to 288░ (http://www.openstreetmap.org/
browse/way/62229017)
SEVERE (RouteNode): E:\openmtbmap\maps\63670080.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
46.065012,13.246466 when routing to 159░ (http://www.openstreetmap.org/
browse/way/526738082)
SEVERE (RouteNode): E:\openmtbmap\maps\63670080.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
46.063818,13.247116 when routing to 160░ (http://www.openstreetmap.org/
browse/way/526738082)
SEVERE (RouteNode): E:\openmtbmap\maps\63670080.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
46.063818,13.247116 when routing to 340░ (http://www.openstreetmap.org/
browse/way/526738082)
SEVERE (RouteNode): E:\openmtbmap\maps\63670080.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
46.062397,13.247571 when routing to 352░ (http://www.openstreetmap.org/
browse/way/526738082)
SEVERE (RouteNode): E:\openmtbmap\maps\63670080.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
46.066478,13.245662 when routing to 159░ (http://www.openstreetmap.org/
browse/way/526738082)
SEVERE (RouteNode): E:\openmtbmap\maps\63670083.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.480502,12.573502 when routing to 57░ (http://www.openstreetmap.org/
browse/way/296891396)
SEVERE (RouteNode): E:\openmtbmap\maps\63670083.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.479995,12.572592 when routing to 51░ (http://www.openstreetmap.org/
browse/way/296891396)
SEVERE (RouteNode): E:\openmtbmap\maps\63670093.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 43.423061,11.122175
when routing to 246░ (http://www.openstreetmap.org/browse/way/109792923)
SEVERE (RouteNode): E:\openmtbmap\maps\63670090.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 44.576464,11.
368615 when routing to 287░ (http://www.openstreetmap.org/
browse/way/289500850)
SEVERE (RouteNode): E:\openmtbmap\maps\63670093.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 43.423083,11.122244
when routing to 246░ (http://www.openstreetmap.org/browse/way/109792923)
SEVERE (RouteNode): E:\openmtbmap\maps\63670092.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 44.647965,10.934005
when routing to 210░ (http://www.openstreetmap.org/browse/way/184765377)
SEVERE (RouteNode): E:\openmtbmap\maps\63670092.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at 44.641820,10.923750
when routing to 18░ (http://www.openstreetmap.org/browse/way/184119527)
SEVERE (RouteNode): E:\openmtbmap\maps\63670096.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
43.111527,12.391685 when routing to 318░ (http://www.openstreetmap.org/
browse/way/23079043)
SEVERE (RouteNode): E:\openmtbmap\maps\63670096.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
43.453887,12.236974 when routing to 338░ (http://www.openstreetmap.org/
browse/way/134104701)
SEVERE (RouteNode): E:\openmtbmap\maps\63670096.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
43.455952,12.237370 when routing to 241░ (http://www.openstreetmap.org/
browse/way/134104701)
SEVERE (RouteNode): E:\openmtbmap\maps\63670096.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
43.572849,12.138348 when routing to 102░ (http://www.openstreetmap.org/
browse/way/49245384)
SEVERE (RouteNode): E:\openmtbmap\maps\63670096.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
43.111334,12.391722 when routing to 345░ (http://www.openstreetmap.org/
browse/way/23079043)
SEVERE (RouteNode): E:\openmtbmap\maps\63670097.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
42.419061,12.106760 when routing to 18░ (http://www.openstreetmap.org/
browse/way/94916749)
SEVERE (RouteNode): E:\openmtbmap\maps\63670101.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.839517,11.616697 when routing to 304░ (http://www.openstreetmap.org/
browse/way/23867528)
SEVERE (RouteNode): E:\openmtbmap\maps\63670101.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.839494,11.616747 when routing to 304░ (http://www.openstreetmap.org/
browse/way/23867528)
SEVERE (RouteNode): E:\openmtbmap\maps\63670101.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.840777,11.614020 when routing to 305░ (http://www.openstreetmap.org/
browse/way/23867528)
SEVERE (RouteNode): E:\openmtbmap\maps\63670101.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.836746,11.619784 when routing to 203░ (http://www.openstreetmap.org/
browse/way/109082692)
SEVERE (RouteNode): E:\openmtbmap\maps\63670101.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
44.839148,11.617493 when routing to 304░ (http://www.openstreetmap.org/
browse/way/23867528)
SEVERE (RouteNode): E:\openmtbmap\maps\63670113.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.436562,10.996342 when routing to 140░ (http://www.openstreetmap.org/
browse/way/552651963)
SEVERE (RouteNode): E:\openmtbmap\maps\63670114.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.869223,10.886843 when routing to 236░ (http://www.openstreetmap.org/
browse/way/225847075)
SEVERE (RouteNode): E:\openmtbmap\maps\63670117.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.570251,11.935898 when routing to 109░ (http://www.openstreetmap.org/
browse/way/132914664)
SEVERE (RouteNode): E:\openmtbmap\maps\63670117.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
45.570286,11.935696 when routing to 103░ (http://www.openstreetmap.org/
browse/way/132914664)
SEVERE (RouteNode): E:\openmtbmap\maps\63670116.osm.pbf: 10 or more arcs
with the same initial bearing, expect routing problems at
46.553374,11.778210 when routing to 17░ (http://www.openstreetmap.org/
browse/way/239751200)

On 15 March 2018 at 09:53, Gerd Petermann <gpetermann_muenchen at hotmail.com>
wrote:

> Hi Felix,
>
> further thoughts about this: Up to now we concentrate on problems caused
> by rouding errors when OSM (~32 bit) coordinates
> are placed on the 24 Garmin raster.
> What about places where OSM data already contains overlapping highways?
> I think there is currently no code in mkgmap to handle this properly.
> Don't know if we can find rules to handle this,
> if not we should print warning messages, as it is likely to cause trouble.
> Overlapping can mean :
> * two different OSM ways with identical sequences of 2 or more nodes, e.g.
> a-b-c-d and x-b-c-y
> * two different OSM ways with identical sequences of 2 or more nodes, but
> in reversed order, e.g. a-b-c-d and x--d-c-y
>
> My understanding is that these are mapping errors, but as said before
> there is no code to detect this. There might be
> warnings, e.g. in the housenumber code.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
> Gerd Petermann <gpetermann_muenchen at hotmail.com>
> Gesendet: Mittwoch, 14. März 2018 17:25:22
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: Re: [mkgmap-dev] Bug in Road Merging - actually doubling roads.
>
> Hi Felix,
> yes, change it to a gigher value first.
>
> Gerd
>
> Felix Hartmann-2 wrote
> > Hi Gerd,
> >
> > I get a huge huge list - and the ones I tried seemed to be quite alright
> -
> > but the couple that I checked where simply ways that my styles inserts at
> > least 3-4 times (usually ways with hiking/mtb route). Should I increase
> > the
> > counter in the patch to 5 (I guess still alright) or to 6 (I'm pretty
> sure
> > I get routing errors then)?
> >
> > Felix
>
>
>
>
>
> --
> Sent from: http://gis.19327.n8.nabble.com/Mkgmap-Development-f5324443.html
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
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> _______________________________________________
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>

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