Hi Bernhard, I think the problem is that the zip files are not in one of the expected formats. You should see better results if you unzip the files. I'll try to add support for this format now.
Gerd ________________________________________ Von: mkgmap-dev <[email protected]> im Auftrag von Bernhard Hiller <[email protected]> Gesendet: Sonntag, 8. April 2018 20:40:23 An: [email protected] Betreff: [mkgmap-dev] DEM bug at 50°N According to the DEM in the map, the Rhine river some 3 km away from my home is at an elevation of some 2600 m asl. I do not live in the Swiss alps, but some 50km west of Frankfurt, just north of 50°N... The correct elevation is about 80m. Near Bingen (just south of 50°N), the Rhine is at an elevation of ~500m, somewhere between Assmannshausen and Lorch it ascends suddenly and very steeply to almost 3000m. In Cologne still at 500 m asl. South of 48°N, the data seem OK; but in the north, I did not find reasonable values - the Elbe in Hamburg above 1000m asl. I exclude a problem in the DEM data: before creating the map of Germany and Czechia, I tested with Hessen only. And then, the DEM values looked reasonable. I use mkgmap 4143. The command includes parameters for DEM: --dem-poly=areas.poly ^ --dem=%DEMPATH% ^ --dem-dists=3314,4000,6000,8000,10000,15000,20000,30000 ^ areas.poly were created by splitter in the step before, SET DEMPATH=E:\Maps\Development\SRTM\L32.zip,E:\Maps\Development\SRTM\M32.zip,E:\Maps\Development\SRTM\N32.zip,E:\Maps\Development\SRTM\L33.zip,E:\Maps\Development\SRTM\M33.zip,E:\Maps\Development\SRTM\N33.zip contains DEM data from http://www.viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org3.htm (while testing with Hessen, %DEMPATH% was E:\Maps\Development\SRTM\M32.zip only which contains data from N48E006 to N51E011). Or is it a matter of file size? The largest *.img file has 131256kB. Kind regards, Bernhard _______________________________________________ mkgmap-dev mailing list [email protected] http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev _______________________________________________ mkgmap-dev mailing list [email protected] http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
