[GRASS-user] Re: extracting features from DEM: how big DEM?

[Milton Cezar Ribeiro]

Hi Jarek,

Thanks for the reply! What you means by lots of time? Many hours, many days
or weeks?
Any comments about Windows vs Linux?

cheers

milton

2009/7/23 Jarek Jasiewicz <jarekj at amu.edu.pl>

> no prblem with 20000 x 20000 but takes lots of time
>
> Milton Cezar Ribeiro pisze:
>
>> By the way, I forgot to comment that my computer is a dell,
>> running vista 64 bits, with 6GB of run. I am also able to
>> run grass (compiled for 64bits) under Ubuntu on same machine.
>>  Cheers
>>  milton
>>
>> 2009/7/22 Milton Cezar Ribeiro <miltinho.astronauta at gmail.com <mailto:
>> miltinho.astronauta at gmail.com>>
>>
>>    Dear all,
>>        I am organizing a very large DEM for a region of interest,
>>    and would like to know from our colleagues what is your
>>    experience with features extraction from large DEM.
>>    What was your highest (rows and cols) DEM that
>>    you handled on grass? I will need to extract features
>>    using r.watershed, r.flor, w.terraflor, and the I need
>>    to extract several features (may be 10) from my final
>>    (not yet ready) DEM.
>>        Thanks in advance for the help
>>        miltinho
>>    brazil=toronto
>>
>>
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>>
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>
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