Hi Andrzej, sorry, I don't get the idea. What bounding box do you mean? I assume you talk about what is called SubDivision in mkgmp? What rounding errors do you fear? Do you think that it can cause trouble when a sub division from tile A overlaps another from tile B at level 1..7 ? I think this is what usually happens now, but I am not 100% sure. Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej@poczta.onet.pl> Gesendet: Sonntag, 28. Januar 2018 18:19 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] remove splitter option align-for-dem again or change mkgmap? Hi Gerd, I say layers, but maybe you call them levels, like in option: levels = 0:24, 1:23, 2:22, 3:20, 4:18 If splitter uses --resolution=18, then for the case above, layer/level 4 can get exactly the same bounding box as layer/level 0. If you use arbitrary resolution, then there were some rounding errors. I understand mkgmap can cope with this somehow. -- Best regards, Andrzej _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev