[mkgmap-dev] internal error: found no housenumber road

Sat Feb 27 09:44:25 GMT 2021

Hi all,

I've uploaded a file with the problematic area: http://files.mkgmap.org.uk/detail/501
I see no obvious error in the housenumber data, all looks plausible, only some building=yes tags on nodes are probably wrong, but that isn't a problem here.

I really wonder what result I want to get from this data. There are two addr:interpolation=odd ways along the footway https://www.openstreetmap.org/way/775843679, so I think mkgmap should produce data so that the address for e.g. the node https://www.openstreetmap.org/node/1025525702
addr:housenumber=477
addr:street=Royal Parade
is found on that footway, as well as the interpolated numbers 459 ... 477 and many more numbers which belong to "Royal Parade", even though the footway has no name and is not connected to "Royal Parade" but to "Ievers Street".

The alternative would be to use https://www.openstreetmap.org/way/573320541 as it has the right name, but it is not as close. All the other highways named "Royal Parade" should be dismissed (which isn't easy to compute) because way 573320541 is also split into fragments because of the --link-pois-to-ways processing.

So, as so often with house numbers we have a lot of correct information and the heuristic in mkgmap should find out that footway belongs to "Royal Parade", but that doesn't work. The "internal error" is produced because node 1025525702 appears in two addr:interpolation intervals. The program tries to find a single road to use for the interpolation and that goes wrong here. The details are too complex to explain here. In short the data is "corrected" too often.

The failing code exists to avoid cases were a single, obviously wrong addr:interpolation way would generate lots of wrong address nodes. IIRC  I added it to detect nonsense in the imports of Canvec data (Canada). I have to find out if this code is still needed and if yes, how to improve the heuristic to avoid the internal error.

 Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Gerd Petermann <gpetermann_muenchen at hotmail.com>
Gesendet: Freitag, 26. Februar 2021 20:11
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] internal error: found no housenumber road

Hi Carlos,

yes, it requires the footway, probably also other roads and a special order in the addr:interpolation way and maybe more. I found a possible fix but I need more time to understand in what case this will cause problems.
The map is usable, a few house numbers may not be found.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <carlos at alternativaslibres.org>
Gesendet: Freitag, 26. Februar 2021 20:06
An: mkgmap-dev at lists.mkgmap.org.uk
Betreff: Re: [mkgmap-dev] internal error: found no housenumber road

Thanks for investigating it. I've been using those two rules for several
years, it's strange the problem didn't arise till now.

El 26/2/21 a las 15:36, Gerd Petermann escribió:
> Hi Carlos,
>
>
> I didn't find a fix for the problem so far. I see what's going wrong but not why it only happens in this special situation.
> Your points file contains these two rules:
> highway=traffic_signals { add mkgmap:road-speed = '-1'; add mkgmap:road-speed-min = '1' }
> highway=crossing { add mkgmap:road-speed = '-1'; add mkgmap:road-speed-min = '1' }
>
> When I copy them to the default style I see the same error. Because of the extra rules and --link-poi-to-ways the OSM way 573320541 is split into smaller parts and somehow mkgmap fails to find the right part for the numbers generated by the addr:interpolation way.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Gerd Petermann <gpetermann_muenchen at hotmail.com>
> Gesendet: Freitag, 26. Februar 2021 08:00
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] internal error: found no housenumber road
>
> Hi Carlos,
>
> OK, I can now reproduce with
> java -Xmx4G -ea -jar d:\mkgmap\dist\mkgmap.jar --route --housenumbers  --link-pois-to-ways  --style-option=language=non_latin --style-file=..\mio 51690125.o5m
>
> Also with a smaller extract. It seems your style in combination with --link-pois-to-ways triggers this...
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <carlos at alternativaslibres.org>
> Gesendet: Donnerstag, 25. Februar 2021 23:06
> An: mkgmap-dev at lists.mkgmap.org.uk
> Betreff: Re: [mkgmap-dev] internal error: found no housenumber road
>
> Removing --road-name-config didn't fix the problem. Error can be
> reproduced with command:
>
> java -Xmx27G -ea -jar mkgmap.jar -c opciones_comunes -c opciones_teselas
> --latin1 --family-id=51169 --overview-mapname=OCE1169
> --overview-mapnumber=51169000 --name-tag-list=int_name,name:en,name
> --report-similar-arcs --report-dead-ends=2 --drive-on=detect,right
> --check-roundabouts --check-roundabout-flares --license-file=license_OSM
> --copyright-file=copyright  --style-option=language=non_latin
> --style=mio 51690125.o5m
>
> You can get all (I hope) needed files at
> https://alternativaslibres.org/tmp/no_housenumber.zip
>
> El 25/2/21 a las 22:34, Carlos Dávila escribió:
>> According to your comment, I think it may be caused by the line below
>> passed by  --road-name-config parameter. Testing now...
>>
>> suffix:en = " Avenue", " Close", " Court", " Crescent", " Drive", "
>> Gate", " Grove", " Lane", " Mews", " Parade", " Place", " Road", "
>> Square", " Street", " Terrace", " View", " Way"
>>
>>
>> El 25/2/21 a las 20:53, Gerd Petermann escribió:
>>> Hi Carlos,
>>>
>>> I cannot reproduce this with the default style. The error message
>>> means that mkgmap found a matching road at some time and later it
>>> didn't. This should not happen, but maybe it depends on the style or
>>> other options. I downloaded the small area and tried with
>>> java -jar dist\mkgmap.jar --bounds=bounds.zip --route --housenumbers
>>> --index d:\OSM\addr-inter.osm
>>>
>>> Please let me know how to reproduce.
>>>
>>> Gerd
>>>
>>>
>>> ________________________________________
>>> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
>>> von Carlos Dávila <carlos at alternativaslibres.org>
>>> Gesendet: Donnerstag, 25. Februar 2021 20:33
>>> An: Development list for mkgmap
>>> Betreff: [mkgmap-dev] internal error: found no housenumber road
>>>
>>> While processing Australia I get several warnings of the form:
>>>
>>> SEVERE (HousenumberGenerator): 51690125.o5m: internal error: found no
>>> housenumber road for interpolated house
>>> http://www.openstreetmap.org/?mlat=-37.782001&mlon=144.959382&zoom=17
>>>
>>> Looking at that area in JOSM, I see addr:interpolation lines next to a
>>> footway without a name, connecting houses with addr:street=Royal Parede,
>>> and a primary road named Royal Parede some 20 m away from the
>>> addr:interpolation lines. I guess mkgmap searches for street name in the
>>> footway (which doesn't have a name) instead of in the Royal Parade road,
>>> and thus it fails to assign housenumbers.
>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk
>>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at lists.mkgmap.org.uk
>>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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