Hi Andrzej, ooops , just noticed that I did not update my patch. See new version attached. I am now playing with a version that moves all corners into the same direction. BTW: I've used --dem-poly=bolivia.poly with file from geofabrik. Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Andrzej Popowski <popej@poczta.onet.pl> Gesendet: Montag, 15. Januar 2018 12:51:00 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] HGT - getElevation() Hi Gerd, I guess your code already makes sure, that whole area is covered by DEM. So yes, extending bottom/right is not necessary. -- Best regards, Andrzej _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev