Hi Gerd Thanks for your reply. I had already tried using the same split file, but it didn't work. I think it isn't worth generating DEM data each time a map is updated, given gmap version of all maps is also available in my site if anyone wants to have DEM in BaseCamp. Carlos El 3/1/23 a las 7:40, Gerd Petermann escribió:
Hi Carlos,
I don't know the exact reason for the problem. I guess Garmin software needs DEM tiles with the same layout, but maybe only one corner has to match. I think the only solution is to use the same split file as long as possible so that you can reuse the precompiled DEM tiles. If mkgmap fails to render a tile because it has too much data you would split that specific tile into smaller pieces, modify the global split file to contain the new tiles and render the needed DEM tiles. Quite some work to do when this should happen automatically with scripts.
Gerd
________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <carlos@alternativaslibres.org> Gesendet: Montag, 2. Januar 2023 18:45 An: Development list for mkgmap Betreff: [mkgmap-dev] DEM data from gmapsuppp not showing on BaseCamp
Happy New Year to all!
One user of my maps has reported that when he loads a gmapsupp with DEM in BaseCamp, it doesn't show shaded relief, while if he loads gmap version of the same map it does. I have confirmed the issue with a couple of maps and also that BaseCamp reads height information from gmapsupp, as it is displayed in the status bar along with coordinates. gmap version of the same maps does show both shaded relief and height info at all zoom levels.
My DEM maps are generated with options below, just combining precompiled map data (51*.img) and DEM data (63*.img) tiles.
gmapi command: java -ea -Xmx27G -jar mkgmap.jar --dem=hgt/ALOS --dem-poly=polygons/$mapa.poly --overview-dem-dist=128000 --gmapi-minimal${GMAPI_MINIMAL} --show-profiles=1 --road-name-config=${CONFIG} tmp/51${FID}*.img curvas/63${FID}*.img tmp/${ABR}5${FID}.txt
gmapsupp command: java -Xmx27G -ea -jar mkgmap.jar --gmapsupp --road-name-config=${CONFIG} --route tmp/51${FID}*.img curvas/63${FID}*.img tmp/${ABR}5${FID}.typ --description="OSM $MAPA DEM" --no-tdbfile
I then tried splitting map data with the same areas.list used to generate DEM tiles, so that both groups of tiles share the same bounding box, but it didn't work either. Only if map and DEM data are all compiled in the same run of mkgmap, gmapsupp shows shaded relief in BaseCamp.
Does anybody know a way to get shaded relief from gmapsupp when using precompiled tiles?
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