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[mkgmap-dev] Polygon fill

From Gerd Petermann gpetermann_muenchen at hotmail.com on Tue Oct 20 12:35:18 BST 2020

Hi Karl,

not related. These lakes are not handled by the precomp-sea data. You are right whenever the problem is related to coastline data.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von 7770 <7770 at foskan.eu>
Gesendet: Dienstag, 20. Oktober 2020 13:30
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Polygon fill

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?




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