[mkgmap-dev] Coast branch generates bogus-looking multipolygon errors

Mon Dec 27 14:37:15 GMT 2010

> Hi WanMil,
>
> I compiled today's finland.osm.pbf with mkgmap r1755 and then reverted
> to r1751, the revision just before you merged back the coast branch.
> r1751 does not generate these errors:
>
> 2010/12/26 22:11:54 WARNING (MultiPolygonRelation): 63240002.osm.gz:
> Multipolygon
> http://www.openstreetmap.org/browse/relation/4611686018427393507
> contains errors.
> 2010/12/26 22:13:21 WARNING (MultiPolygonRelation): 63240001.osm.gz:
> Multipolygon
> http://www.openstreetmap.org/browse/relation/4611686018427403587
> contains errors.
> 2010/12/26 22:15:02 WARNING (MultiPolygonRelation): 63240005.osm.gz:
> Multipolygon
> http://www.openstreetmap.org/browse/relation/4611686018427471668
> contains errors.
> 2010/12/26 22:15:15 WARNING (MultiPolygonRelation): 63240004.osm.gz:
> Multipolygon
> http://www.openstreetmap.org/browse/relation/4611686018427463146
> contains errors.
> 2010/12/26 22:15:39 WARNING (MultiPolygonRelation): 63240006.osm.gz:
> Multipolygon
> http://www.openstreetmap.org/browse/relation/4611686018427479870
> contains errors.
>
> (Both revisions did complain about two dead-end oneways, which I fixed
> in the database.)
>
> The mkgmap.log.0 is 322973 bytes with r1751 and 3855601 bytes with
> r1755, which are comparable to the numbers that I posted for r1728,
> r1753 and the map data from 3 days ago (December 23). In other words,
> the change in the mkgmap.log.0 size seems to be due to the merge of the
> coast branch.
>
> You should be able to reproduce this as follows (simplified from my
> osm2img.sh). You will need the files areas.list, mkgmap.args,
> logging.properties, logging.ignore from http://www.polkupyoraily.net/osm/.
>
> wget http://download.geofabrik.de/osm/europe/finland.osm.pbf
> java -jar splitter.jar --split-file=areas.list finland.osm.pbf
> java -Xmx1024m -ea -Dlog.config=logging.properties -jar mkgmap.jar \
> -c mkgmap.args
> grep -vf logging.ignore mkgmap.log.0
>
> Repeat the last two commands after recompiling mkgmap.jar.
>
> Best regards,
>
> 	Marko

Hi Marko,

great work! Your detailed analysis helped a lot to find the problem. It 
is fixed in r1760.

Have fun!
WanMil