Hello Gerd, I was not able to download your polygon file but it is not a problem. My own polygon works like a charm and it is absolutely not a rectangular shape. It is contained in the area where there is no shadow applied on water surface. Is there a difference between a tile full of nan values like N56W008 and when the tile does not exist mkgmap writes a message about using 0m for elevation by default ?
Ireland -9.0 55.5 -6.0 55.5 -5.25 54.6 -5.25 54.0 -5.75 54.0 -5.75 51.5 -8.0 51.5 -8.0 51.25 -10.75 51.25 -10.75 54.6 -9.0 54.6 -9.0 55.5 END END All the best, David _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
