[mkgmap-dev] Maps crashing Mapsource in big cities

Fri Feb 12 11:44:33 GMT 2010

To me it seems that either we do something wrong, or Mapsource cannot 
handle very detailed places. Try compiling Australia from Geofabrik (I 
used maxnodes=1300000 - so smaller than default 16...)
with the following commandline:
start /low /b /wait java -enableassertions -jar -Xmx4200M mkgmap.jar 
--max-jobs=2 --reduce-point-density=5.4 --reduce-point-density-polygon=4 
--suppress-dead-end-nodes --index --delete-tags-file=deletetags 
--blacklist-tags-file=deletetags --adjust-turn-headings 
--ignore-maxspeeds --ignore-turn-restrictions --remove-short-arcs=4 
--location-autofill=1 --description=openmtbmap_%abr%_%date% --route 
--country-abbr=%abr% --country-name=%country% --mapname=%mapid%0000 
--family-id=%mapid% --product-id=1 --series-name=openmtbmap_%abr%_%date% 
--family-name=mtbmap_%abr%_%date% --tdbfile --overview-mapname=mapset 
--area-name=%country% d:\garmin\mkgmap_680\maps\%mapid%00%tile%.osm.gz

At the latest on resolution=24 it crashes. If I use 
--generate-sea=no-mp;extend.... then it already crashes on resolution 22 
(zoomlevel 700m). Simply center onto the city POI of Melbourne and zoom 
in. Same problem exists for Greece and Athens. (it's not related to the 
TYPfile - Mapsource also crashes without registered typfile). Reports I 
got indicate that the maps not only crash Mapsource but also BSOD Garmin 
GPS (though no damage done, except restart needed).