Hi Andrzej, I think I understand now what the problem is, and I also think that the high resolution is making it worse. The current algo in fact ignores node counts outside the polygon, the higher the resolution the smaller the grid areas and the more data outside the polygon is ignored. I don't yet have a solution, I just know that the current approach is not okay. Gerd ________________________________________ Von: mkgmap-dev-bounces@lists.mkgmap.org.uk <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej@poczta.onet.pl> Gesendet: Samstag, 5. März 2016 20:23 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] problem with splitter and bounding polygon Hi Gerd, I observe the same problem using standard extract of North America http://download.geofabrik.de/north-america-latest.osm.pbf I have packed my batches and splitter output (densities, areas) into an archive: http://files.mkgmap.org.uk/download/292/split-poly2.7z I have used splitter r428 and mkgmap 3669. I hope you can repeat it with current extract, it shouldn't be much different. I got some tiles with size like 30-60MB, 2 of them didn't compile with mkgmap. Average size of tiles was about 12MB. -- Best regards, Andrzej _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev