Openmaptiles: Missing sea fragment in zoom levels 7-9

[rpieciorak]

Some part of the Baltic sea is missing on zoom levels 7 to 9.
See attached images.

Below zoom level 7:

Zoom level 7:

Above zoom level 9:

[jirik]

Thanks for reporting. The problem is that at Z6 and Z7 we are mixing oceans from NE and lakes from OSM. This sea fragment is considered as a lake in NE and as an ocean in OSM, so it is missing.

Solution is to use OSM oceans also for Z6 and Z7. We need to create two new generalized tables osm_ocean_polygon_gen5 and osm_ocean_polygon_gen6 for Z7 and Z6 here:
https://github.com/openmaptiles/import-water/blob/master/import-water.sh#L39

[nvkelso]

(This will also happen in the Netherlands near Amsterdam and possibly also
in Brazil.)

On Thu, Jul 20, 2017 at 9:36 AM, Jiri Kozel [e-mail]
wrote:

Thanks for reporting. The problem is that at Z6 and Z7 we are mixing
oceans from NE and lakes from OSM. This sea fragment is considered as a
lake in NE and as an ocean in OSM, so it is missing.

Solution is to use OSM oceans also for Z6 and Z7. We need to create two
new generalized tables osm_ocean_polygon_gen5 and osm_ocean_polygon_gen6
for Z7 and Z6 here:
https://github.com/openmaptiles/import-water/blob/master/import-water.sh#
L39

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[klokan]

Pull request is welcome - or we may need a customer who supports working hours on this effort...

[stefanb]

For me testing on https://openmaptiles.org/languages/en/#6.03/54.663/19.468
that part of the sea is missing between zoom levels 6 and 8:

[jirik]

Seems to be already fixed in data: https://www.openstreetmap.org/relation/8140878