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[mkgmap-dev] 28 bit prec in DEM section header ?

From Andrzej Popowski popej at poczta.onet.pl on Sun Jan 21 20:16:04 GMT 2018

Hi GErd,

if you use DEM with voids, voids are visible as areas with no shading.
When you move mouse cursor over voids, Mapsource doesn't show height.

Now this is unexpected: both areas can be misaligned. It looks like 
there are different procedures for calculating shading area and DEM 
heights area.

I have tested maps from your demmove set. For all version areas are 
misaligned, differences are from 25 to 80m.

On the same maps compiled with bicubic patch, areas are aligned.

Best regards,

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