Hi Andrzej, What bothers me is that such a polygon in an *.mp file will suppress the generated rectangular 0x4b shape but with osm input it would still be added unless you use --transparent which will also set a flag in the TRE header (PoiDisplayFlags) I think it would be no problem to have a rule like this natural=land [0x4b resolution 0] Don't know if there was code to suppress this in the past, but current mkgmap allows it. I did not try what effects you get with the different combinations of TRE header flag and 0x4b shapes. Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej@poczta.onet.pl> Gesendet: Sonntag, 26. März 2017 15:15:20 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] Commit r3867: refactoring, no functional change: simplify code to add background polygon (type 0x4B) Hi Gerd, I prefer current working of --transparent option. If anyone creates background polygons manually, then IMHO would be better to not remove them. I have used once this possibility to test non-rectangle background. -- Best regards, Andrzej _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev