Markus:
> see also here for some comparison:
> http://www.cs.duke.edu/geo*/terraflow/speedup.html
it doesn't list GRASS version but from the Pentium III and March 2001
references I would expect that the version of r.watershed there was
from GRASS 5.0 and using the old color setting code which pro
hydromodeling.com wrote:
> > I have also tried using the -m and -4 flags placed after the
> > r.watershed part.
On modern systems using -m will slow it down a lot for minor memory
savings. Don't use it. I wouldn't bother with -4 either.
> r.terraflow
note as far as output basins go this calculat
On Jan 23, 2008 6:28 PM, <[EMAIL PROTECTED]> wrote:
> Thanks for pointing out the excerpt from the manual. So, based on
> that it seems that r.watershed will take longer to run than the
> ArcHydro tools. How much longer? I guess I will just let it run and
> see if I can find out. Then I will ru
>> > Chuck Ehlschlaeger, Geospatial Science Consultant
> >> > PERTAN GROUP, http://pertan.com/
> >> > [EMAIL PROTECTED], 309-255-2727
> >> > http://chuck.ehlschlaeger.info/
> >> >
> >> >
> >> > -Original Message-
sultant
> PERTAN GROUP, http://pertan.com/
> [EMAIL PROTECTED], 309-255-2727
> http://chuck.ehlschlaeger.info/
>
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, January 23, 2008 8:52 AM
> To: Charle
; > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of
> > [EMAIL PROTECTED]
> > Sent: Wednesday, January 23, 2008 8:52 AM
> > To: Charles Ehlschlaeger
> > Cc: grass-user@lists.osgeo.org
> > Subject: RE: [GRASS-
Markus,
I am running GRASS version 6.2.2 on Ubuntu 7.10. I am at work right
now and don't have access to the machine, but I am pretty sure about
the GRASS version. If I am wrong I will post a correction when I get
home.
Matt
Quoting Markus Neteler <[EMAIL PROTECTED]>:
Matt,
please a
IL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, January 23, 2008 8:52 AM
To: Charles Ehlschlaeger
Cc: grass-user@lists.osgeo.org
Subject: RE: [GRASS-user] Use of r.watershed
Chuck,
Thanks for your reply. The DEM has 8,627 rows and 10,270 columns.
The command line statement I used is:
r.w
Chuck,
Thanks for your reply. The DEM has 8,627 rows and 10,270 columns.
The command line statement I used is:
r.watershed el=fill th=400 ac=fac ba=basins st=str
I have also tried using the -m and -4 flags placed after the r.watershed part.
Thanks,
Matt
Quoting Charles Ehlschlaeger <[EM
How many rows and columns are in the input map? Also include the exact
command line statement you use to run the program.
Sincerely, chuck
Chuck Ehlschlaeger, Geospatial Science Consultant
PERTAN GROUP, http://pertan.com/
[EMAIL PROTECTED], 309-255-2727
http://chuck.ehlschlaeger.info/
-Orig
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