[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=3314,4000,6000,8000,1,15000,2,3 ^ 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 mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Re: [mkgmap-dev] DEM bug at 50°N
Hi Bernhard, might be a special case. Please post the split-file (areas.list) and the tile number that causes problems. Gerd Von: mkgmap-dev im Auftrag von Bernhard Hiller Gesendet: Sonntag, 8. April 2018 20:40:23 An: mkgmap-dev@lists.mkgmap.org.uk 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=3314,4000,6000,8000,1,15000,2,3 ^ 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 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
Re: [mkgmap-dev] DEM bug at 50°N
Hi Bernhard, okay, I'll try to reproduce the problem later. I always use --write-kml to produce a kml file which can be loaded in many tools like JOSM (opendata plugin is needed) Gerd Von: mkgmap-dev im Auftrag von Bernhard Hiller Gesendet: Dienstag, 10. April 2018 11:28:14 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] DEM bug at 50°N Hi Gerd, an example of a tile with the bug is 43100115, but many more tiles show the bug, like 43100096 along Lech river near Landsberg. In contrast, 43100105 looks OK south of 48°N (south part of Freiburg town, Schauinsland mountain), but wrong in the northern suburbs of Freiburg. That is, a tile can have both correct and defective DEM values. 48N is also the border between L32 and M32 zip files with DEM data. My current impression is that everything north of 48° is wrong, take also a look at the relief at the Oder river near the German-Polish border. Places in southern Bavaria and Baden-Württemberg look OK. Do we have some software for visualising where to find which tile? QLandkarte GT shows tile borders, but no information re its number. Kind regards, Bernhard Am 09.04.2018 um 07:26 schrieb Gerd Petermann: > Hi Bernhard, > might be a special case. > Please post the split-file (areas.list) and the tile number that causes > problems. > > Gerd > > > Von: mkgmap-dev im Auftrag von > Bernhard Hiller > Gesendet: Sonntag, 8. April 2018 20:40:23 > An: mkgmap-dev@lists.mkgmap.org.uk > 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=eas.poly ^ > --dem=EMPATH% ^ > --dem-dists314,4000,6000,8000,1,15000,2,3 ^ > areas.poly were created by splitter in the step before, > SET > DEMPATH=\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 > 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
Re: [mkgmap-dev] DEM bug at 50°N
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 im Auftrag von Bernhard Hiller Gesendet: Sonntag, 8. April 2018 20:40:23 An: mkgmap-dev@lists.mkgmap.org.uk 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=3314,4000,6000,8000,1,15000,2,3 ^ 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 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
Re: [mkgmap-dev] DEM bug at 50°N
Hi Bernhard, it turned out to be a stupid error in my code, see http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4154 Please use r4154 (overlaps branch) or r4155 from trunk. I did not notice this because I never used the zipped files from viewfinder because their names (e.g. m32.zip) give so little information about the content :-( Gerd Von: mkgmap-dev im Auftrag von Gerd Petermann Gesendet: Mittwoch, 11. April 2018 09:23:00 An: Development list for mkgmap Betreff: Re: [mkgmap-dev] DEM bug at 50°N 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 im Auftrag von Bernhard Hiller Gesendet: Sonntag, 8. April 2018 20:40:23 An: mkgmap-dev@lists.mkgmap.org.uk 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=3314,4000,6000,8000,1,15000,2,3 ^ 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 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 ___ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Re: [mkgmap-dev] DEM bug at 50°N
Hi Gerd, thanks, that patch works. Bugs with simple reasons are often hard to find. The names of the viewfinderpanoramas file look like: - floor(Longitude/6)+31 for the number part - (char))floor(latitude/4)+65) for the character at northern latitudes, - 'S'+(char)(floor(latitude/4)+65) for the character at southern latitudes, and some exceptions for Greenland, Iceland, and Antarctica. Kind regards, Bernhard Am 11.04.2018 um 09:49 schrieb Gerd Petermann: Hi Bernhard, it turned out to be a stupid error in my code, see http://www.mkgmap.org.uk/websvn/revision.php?repname=gmap&revA54 Please use r4154 (overlaps branch) or r4155 from trunk. I did not notice this because I never used the zipped files from viewfinder because their names (e.g. m32.zip) give so little information about the content :-( Gerd Von: mkgmap-dev im Auftrag von Gerd Petermann Gesendet: Mittwoch, 11. April 2018 09:23:00 An: Development list for mkgmap Betreff: Re: [mkgmap-dev] DEM bug at 50°N 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 im Auftrag von Bernhard Hiller Gesendet: Sonntag, 8. April 2018 20:40:23 An: mkgmap-dev@lists.mkgmap.org.uk 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=eas.poly ^ --dem=EMPATH% ^ --dem-dists314,4000,6000,8000,1,15000,2,3 ^ areas.poly were created by splitter in the step before, SET DEMPATH=\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 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 ___ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Re: [mkgmap-dev] DEM bug at 50°N
Hi Bernhard, thanks for the feedback and the formulars. @all: The attached patch allows mkgmap to find the zip names, it would find L32.zip when N44E006.hgt. I hope I got all the special cases right ;-) Some cases are very special, e.g U20.zip and GL-North.zip (Greenland) both contain the file N80W063.hgt and the contents of these files are different in the two zips :O No idea if the differences are wanted or not. I decided to search for U20.zip first, then for GL-North.zip. This could be changed so that GL-North would be preferred, no idea what's better. A binary is here: http://files.mkgmap.org.uk/download/427/mkgmap.jar Gerd Von: mkgmap-dev im Auftrag von Bernhard Hiller Gesendet: Donnerstag, 12. April 2018 15:15:02 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] DEM bug at 50°N Hi Gerd, thanks, that patch works. Bugs with simple reasons are often hard to find. The names of the viewfinderpanoramas file look like: - floor(Longitude/6)+31 for the number part - (char))floor(latitude/4)+65) for the character at northern latitudes, - 'S'+(char)(floor(latitude/4)+65) for the character at southern latitudes, and some exceptions for Greenland, Iceland, and Antarctica. Kind regards, Bernhard Am 11.04.2018 um 09:49 schrieb Gerd Petermann: > Hi Bernhard, > > it turned out to be a stupid error in my code, see > http://www.mkgmap.org.uk/websvn/revision.php?repname=gmap&revA54 > Please use r4154 (overlaps branch) or r4155 from trunk. > > I did not notice this because I never used the zipped files from viewfinder > because their names (e.g. m32.zip) give > so little information about the content :-( > > Gerd > > > Von: mkgmap-dev im Auftrag von Gerd > Petermann > Gesendet: Mittwoch, 11. April 2018 09:23:00 > An: Development list for mkgmap > Betreff: Re: [mkgmap-dev] DEM bug at 50°N > > 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 im Auftrag von > Bernhard Hiller > Gesendet: Sonntag, 8. April 2018 20:40:23 > An: mkgmap-dev@lists.mkgmap.org.uk > 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=eas.poly ^ > --dem=EMPATH% ^ > --dem-dists314,4000,6000,8000,1,15000,2,3 ^ > areas.poly were created by splitter in the step before, > SET > DEMPATH=\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 > 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 > ___ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev hgt_viewfinder.patch Description: hgt_viewfinder.patch ___ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Re: [mkgmap-dev] DEM bug at 50°N
Oops, found one bug in the patch: It should search for A01.zip, not A1.zip when N00W177.hgt is needed. Attached is hgt_viewfinder-v2.patch and the new binary is here: http://files.mkgmap.org.uk/download/428/mkgmap.jar Gerd Von: mkgmap-dev im Auftrag von Gerd Petermann Gesendet: Freitag, 13. April 2018 13:31 An: Development list for mkgmap Betreff: Re: [mkgmap-dev] DEM bug at 50°N Hi Bernhard, thanks for the feedback and the formulars. @all: The attached patch allows mkgmap to find the zip names, it would find L32.zip when N44E006.hgt. I hope I got all the special cases right ;-) Some cases are very special, e.g U20.zip and GL-North.zip (Greenland) both contain the file N80W063.hgt and the contents of these files are different in the two zips :O No idea if the differences are wanted or not. I decided to search for U20.zip first, then for GL-North.zip. This could be changed so that GL-North would be preferred, no idea what's better. A binary is here: http://files.mkgmap.org.uk/download/427/mkgmap.jar Gerd Von: mkgmap-dev im Auftrag von Bernhard Hiller Gesendet: Donnerstag, 12. April 2018 15:15:02 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] DEM bug at 50°N Hi Gerd, thanks, that patch works. Bugs with simple reasons are often hard to find. The names of the viewfinderpanoramas file look like: - floor(Longitude/6)+31 for the number part - (char))floor(latitude/4)+65) for the character at northern latitudes, - 'S'+(char)(floor(latitude/4)+65) for the character at southern latitudes, and some exceptions for Greenland, Iceland, and Antarctica. Kind regards, Bernhard Am 11.04.2018 um 09:49 schrieb Gerd Petermann: > Hi Bernhard, > > it turned out to be a stupid error in my code, see > http://www.mkgmap.org.uk/websvn/revision.php?repname=gmap&revA54 > Please use r4154 (overlaps branch) or r4155 from trunk. > > I did not notice this because I never used the zipped files from viewfinder > because their names (e.g. m32.zip) give > so little information about the content :-( > > Gerd > > > Von: mkgmap-dev im Auftrag von Gerd > Petermann > Gesendet: Mittwoch, 11. April 2018 09:23:00 > An: Development list for mkgmap > Betreff: Re: [mkgmap-dev] DEM bug at 50°N > > 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 im Auftrag von > Bernhard Hiller > Gesendet: Sonntag, 8. April 2018 20:40:23 > An: mkgmap-dev@lists.mkgmap.org.uk > 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=eas.poly ^ > --dem=EMPATH% ^ > --dem-dists314,4000,6000,8000,1,15000,2,3 ^ > areas.poly were created by splitter in the step before, > SET > DEMPATH=\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 > 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 > ___ mkgmap-dev mailing list mkgmap-d
