Hi Carlos, reg. N64W180.hgt: I've not recorded where I got my files from, but yes, it's a 3'' file and I got most of them from viewfinderpanoramas. I'll triple check if OSM contains any data for this area or did you do this already?
Gerd ________________________________________ Von: mkgmap-dev <[email protected]> im Auftrag von Carlos Dávila <[email protected]> Gesendet: Sonntag, 4. April 2021 11:21 An: [email protected] Betreff: Re: [mkgmap-dev] Deletion of unneeded hgt files El 3/4/21 a las 15:06, Gerd Petermann escribió: > Hi Carlos, > > please double check: > I don't have files for N60E157, N72E057 and N77E083 Correct > I have a N64W180.hgt with a few non-zero values. According to Google satellite imagery, this tile is all sea. Where did you get it from? I can only find 3 arcsec tile from viewfinderpanoramas for this tile, no 1 arcsec in VFP, SRTM or ALOS. > > Results are in new patch. > > Gerd > > ________________________________________ > Von: mkgmap-dev <[email protected]> im Auftrag von > Carlos Dávila <[email protected]> > Gesendet: Samstag, 3. April 2021 13:27 > An: [email protected] > Betreff: Re: [mkgmap-dev] Deletion of unneeded hgt files > > Regarding tiles covering Caspian Sea (N37E051 to N44E049), I thought > it's height would be 0, but if the real height is -29m then they should > not be removed from known-hgt.txt. But they are no longer available from > SRTM or ALOS. > > The other tiles removed in my patch are in open sea areas, so their > height should be 0 and can be IMHO safely removed. > > El 3/4/21 a las 10:04, Gerd Petermann escribió: >> Hi Carlos, >> >> not sure what to do with this. Seems your patch removes the files which are >> listed here: >> https://www.opentopodata.org/notes/invalid-srtm-zips/ >> >> My SRTM directory contains the listed files and they show a constant height >> of -29m as stated in the linked page. >> >> My understanding is that you don't have those files, but you should have. A >> non-existing file is treated like a file with height 0. >> >> Gerd >> >> ________________________________________ >> Von: mkgmap-dev <[email protected]> im Auftrag von >> Carlos Dávila <[email protected]> >> Gesendet: Samstag, 3. April 2021 09:45 >> An: Development list for mkgmap >> Betreff: [mkgmap-dev] Deletion of unneeded hgt files >> >> Attached patch deletes some hgt files which correspond to ocean areas >> from known-hgt.txt file. They just lead to confusing warnings when >> running mkgmap to generate a map with DEM. >> >> _______________________________________________ >> 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 > > _______________________________________________ > 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 _______________________________________________ mkgmap-dev mailing list [email protected] http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
