[gdal-dev] gdal_merge

[jratike80]

Hi,

If you read https://gdal.org/programs/gdal_merge.html carefully you'll
notice that -n is used for telling what nodata value is used in the source
files and it is only needed if GDAL can't recognize it automatically. Try
-a_nodata -32767 instead "Assign a specified nodata value to output bands."

-Jukka Rahkonen-


Gong, Shawn-2 wrote
> Hi list,
> 
> I use gdal_merge to mosaic a set of DTED 1 and 2 chips.
> DTED contains -32767 as nodata. But after merging, -32767 are reset as 0.
> I tried to use "-n -32767" but getting the same result.
> 
> Is there a way to keep the -32767 values?
> 
> Thanks,
> Shawn





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