gtopo30 extraction problem

[Luca Palmeri]

If you haven't already, try this link:
               http://www.geog.uni-hannover.de/grass/admin/gtopo30_import.html
hope it helps

LP
jiao weili wrote:

> Hello,
>
> I try to import gtopo30 data into grass. I proceeded as below:
>
> r.in.bin -s input=E100N90.DEM output=gtopo30 bytes=2 north=90 south=40 east=140
> west=100 r=6000 c=4800
>
> It seems work well. While when I displayed the map, I got a white sheet.  When I query
> with mouse, it seems that the elevation value is null.
>
> Thanks for any response.
>
> Best regards,
> jiao weili
> wljiao at ne.rsgs.ac.cn

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