Hi. I noted a similar thing with Sweden (Stockholm area) where the sea floods the land. The only change that i recall i have made is to update the sea data file. Earlier i had one from the beginning of october, and only one or two days ago (18'th or 19th of october) i updated the sea file. The map data was not updated so i don't think i have introduced other issues. i went back to an earlier version of the sea file http://osm.thkukuk.de/data/ sea-20200921001501.zip This at least resolved my issue. It's hard to say if your problem is identical, but you may want to try. Karl On tisdag 20 oktober 2020 kl. 11:17:14 CEST Vuki wrote:
Hello Guys,
I am brewing custom maps for my Garmin zumo 396.
- get the OSM data from the overpass api (0.5 by 0.5 degree bounding box) - use splitter to split too large parts - use mkgmap to build the maps.
The generated garmin maps have wrong filled polygons, lakes are filled with land and vice versa. Here are two examples (lake Balatom and lake Geneva)
http://www.informatik.hu/balaton.jpg http://www.informatik.hu/geneva.jpg
When I download the lake Balaton in one bounding box the artefacts are disappearing, thus there must be something merging the files. I have tried various mkgmap settings but could not solve the issues. Curret config is:
levels: 0:24, 1:22, 2:20, 3:18, 4:16, 5:14, 6:12, 7:10 add-pois-to-areas add-pois-to-lines adjust-turn-headings bounds: ../bounds-latest.zip check-roundabout-flares check-roundabouts copyright-message: Map data © Openstreetmap.org drive-on=detect,right generate-sea: land-tag=natural=background gmapi gmapsupp housenumbers ignore-maxspeeds index keep-going latin1 link-pois-to-ways location-autofill: is_in,nearest make-opposite-cycleways merge-lines name-tag-list: int_name,name:en,name:hu,name,place_name #nsis order-by-decreasing-area precomp-sea: ../sea-latest.zip preserve-element-order process-destination process-exits reduce-point-density-polygon=8 reduce-point-density=3 remove-ovm-work-files remove-short-arcs road-name-pois route # show-profiles: 1 style-file: ../styles style: default tdbfile x-split-name-index verbose
Do you have any ideas what can cause the issue?