Hi Gerd,maybe this is a problem of overlapping of DEM form different tiles? Or maybe size of DEM area is calculated incorrectly?
Could you upload an example? I haven't used dem-poly on my maps and never noticed this problem.
-- Best regards, Andrzej _______________________________________________ mkgmap-dev mailing list email@example.com http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev