Helena Mitasova wrote:
On Jan 17, 2009, at 12:07 AM, Michael Barton wrote:
Markus,
I compiled last night and was able to try this on my Mac this
evening. No problem at all with the North Carolina elev_lid792_1m
DEM. Everything ran very fast, of course--even though it runs at
32bit on the Mac.
As expected, the MFD results look much more realistic than the SFD
results. Much less linearity and more sinuosity. I can post the
displays if anyone wants to see them.
No errors from the command.
No errors in compiling.
Seems to work fine on the Mac.
I'm not sure why this can't be backported to develbranch_6 since
6.4RCx is already out. Does it change any of the r.watershed
arguments or behavior using the pre-MFD arguments?
Yes, MFD is default, so using the same arguments produces different
results. See also my reply to Helena:
http://lists.osgeo.org/pipermail/grass-dev/2009-January/041965.html
I would prefer to stay out of the discussion about backporting and leave
this decision to the long-time developers.
Michael
- it needs to be thoroughly tested on wide range of data
before replacing it. I am trying to get to it too and Markus M has
done already quite a bit of testing himself. If you can ask Isaac
and/or whoever has grass7 and is around to test it with different data
(wide range of resolutions, data sources, combinations of parameters,
integer or float DEMs, latlong, different size and type of depressions
etc.) that would help.
I fully agree. BTW (repeating myself), the results improve a lot if
float DEMs are multiplied with 100 or 1000 before used as input.
Markus M
_______________________________________________
grass-dev mailing list
grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev
