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[mkgmap-dev] Maintaining generated sea polygons

From Werner Huth wernerhuth at valaquenta.de on Tue May 25 21:47:33 BST 2010

Marko Mäkelä schrieb:
> On Sun, May 23, 2010 at 06:14:35PM +0200, Werner Huth wrote:
>> I used splitter and mkgmap to compile a map of Finland, based on
>> geofabrik- data. The map was defective: For example, Savonlinna was
>> flooded; on the other side, some lakes in the Saimaa- region were
>> displayed as land, their islands as lakes.
>> IN THIS CASE, the splitter caused the errors: Increasing the overlap-
>> parameter from 2000 (which is default) to 8000 solved the problem.
> I just checked Savonlinna, and it is fine in today's dump with the 
> default splitter settings, using my splitting rules and scripts from 
> http://www.polkupyoraily.net/osm/.  How are you splitting the tiles?
I downloaded finland.osm.bz2 (geofabrik) on March, 20th. The splitter- 
call was

java -enableassertions -Xmx1000m -jar ../Bin/splitter.jar 
--mapid=66923001 --max-nodes=1000000 finland.osm.bz2

splitter- version: 105, mkgmap- version: 1581. The map was defective.
On May, 13th, I tried again with the same osm- data:

java -enableassertions -Xmx1000m -jar ../Bin/splitter.jar 
--mapid=${MapPrefix}${FamilyID}001 --max-nodes=1000000 ${OsmFil} 

where MapPrefix, FamilyId and OsmFil resolved to the same values as in 
the first splitter- call. splitter-version: 106, mkgmap-version: 1645. 
The Map was ok (as far as I could see).


Werner Huth
Am Hörn 14, 24326 Ascheberg
BRD/Schleswig- Holstein
0049 4526 33 95 90

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