Thanks Gerd for this. This might be "sometimes mapsource displays parts of the map and relief looks wrong. Unless i'm wrong. Tried to send it to GPSMAP 62s, seems aok except on mapsource/basecamp https://www.dropbox.com/s/y2vu5i9eahdo3df/dem-4008.jpg?dl=0 Ervin M. *Schadow1 Expeditions* - A Filipino must not be a stranger to his own motherland. http://www.s1expeditions.com On Thu, Dec 21, 2017 at 12:36 AM, Gerd Petermann < gpetermann_muenchen@hotmail.com> wrote:
Hi Henning,
please try with r4008 which implements that and also interpolation of hgt values. There seems to be a major bug somewhere in the encoder, sometimes MapSource displays only parts of the map and relief looks wrong. I did not yet find out where exactly the problem is. I tried to compare the results from mkgmp with those from BuildDEMFile. It seems that mkgmap sometimes calculates different positions because of rounding differences. I tried to do most calculations with integers while BuildDEMFile uses doubles. Will try again tomorrow.
Gerd
________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Henning Scholland <osm@hscholland.de> Gesendet: Mittwoch, 20. Dezember 2017 17:06:25 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] r4006: 1st alpha version to write DEM data
Hi Gerd, it's a great news. I wanted to try it on my map of China. But unfortunately failed because of missing files in the sea area between Korea and Japan. Maybe it's a good 1st approach to interpret a missing file as an area with 0 elevation.
Anyway, thanks for all the research work on DEM!!!
Bye, Henning _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev