[mkgmap-dev] Holes in the Sea

Fri Feb 17 16:14:53 GMT 2012

Hello again!

I tried to follow all the hints, I got here. But I still cannot do proper
sea generation.

So I provide as much information as I can, to track down the problem.

First I cut out a rectangular part from the osm file. I did not use the
planet as source but the Europe extract from Geofabrik for time saving. It
shouldn´t make any difference as my cutout is somewhere in the middle of the
Geofabrik extract. I use the following command for this:

set read=--read-pbf D:\OSM\Geofabrik\europe.osm.pbf

set write=--write-pbf D:\OSM\planet\europe.osm.pbf

set bbox=--bounding-box left=-0.4 right=11.3 bottom=39 top=45.4

D:\osm\osmosis\bin\osmosis.bat %read% %bbox% completeRelations=yes --tf
accept-relations type=boundary,multipolygon --used-way --used-node
outPipe.0=MP %read% %bbox% --tf reject-relations type=boundary,multipolygon
outPipe.0=bbox --merge inPipe.0=MP inPipe.1=bbox %write%

Then I run the splitter with --no-trim and –overlap options:

java -Xmx3000M -jar splitter\splitter.jar --max-nodes=500000 --no-trim
--overlap=10000 --resolution=15 --geonames-file=cities15000.zip
--output-dir=tiles planet\europe.osm.pbf 2>err1.txt

After this, I make the map:

cd img

java -Xmx3000m -enableassertions -jar ..\mkgmap\mkgmap.jar -c
..\mkgmap_settings.txt -c ..\tiles\template.args 2>..\err2.txt

cd ..

And this is my mkgmap_settings.txt:

style-file=..\styles

style=marine_mode

family-name=OSM_Marine

series-name=OSM_Marine

overview-mapname=OSM_Marine

latin1

remove-short-arcs

merge-lines

reduce-point-density-polygon=4

reduce-point-density=5.4

lower-case

add-pois-to-areas

#coastlinefile=..\coastlines_europe.osm.pbf

generate-sea=multipolygon,extend-sea-sectors,close-gaps=6000

name-tag-list='name,name:de,name:latin,name:en'

#index

tdbfile

nsis

The error file is attached. I understand that those ExtTypeAttributes errors
come from unfinished code for the seamarks. I do not understand why I get
the MapSplitter errors, as I already use very low –max-nodes to save memory.
And there are still those Polyline errors resulting from sea generation,
even on the rectangular cutout.

Also attached is a screenshot of those terrible holes in the sea.

Everything is running under Win 7 x64 with 4 GB memory. (I know, you´d
prefer Linux, but I don´t have a Linux system running.)

If it´s a memory issue, which options can I modify to save memory?

http://wiki.openstreetmap.org/wiki/User:RheinSkipper

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