Hi Gerd,
great news!
> It will crash if any hgt file is missing
I have them all, but there is no HGT for sea area, missing files is a
standard case.
> I did not check if the flags in the tdb file are set correctly now
I didn't check either, but tdb created by mkgmap v3999 works correctly
for maps with DEM.
> My currennt understanding is that mkgmap should do the calculation of
> the DEM resolution based on the levels used to create the rest of the
> map.
I think it should be like that and some Garmin maps follow this rule. I
have tried to create DEM with pixel size ratio like 1:4:16:64 for levels
24,22,20,18. It didn't work correctly in Mapsource. What works for me is
ratio 1:2:4:8. I think some of unknown fields in DEM header could
contain this ratio. It is something to investigate further.
--
Best regards,
Andrzej
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