On Tue, Jun 28, 2011 at 5:06 AM, jentjr wrote:
> It worked! I also tried it without changing the spatial extent of the map and
> it worked. So, I just needed to set the null values to zero.
>
Hmm, this is not such a good idea, the zeros can have interesting
effects. Rather create a MASK where eith
It worked! I also tried it without changing the spatial extent of the map and
it worked. So, I just needed to set the null values to zero.
Thanks for the patience,
Justin Jent
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http://osgeo-org.1803224.n2.nabble.com/r-stream-extract-with-external-flow-accumulatio
On 06/27/2011 05:12 PM, Mark Seibel wrote:
I believe that the flow accumulation grid was produced using ArcHydro. I put
the link to the data set that I am using below if anyone wants to try it
out.
Hi. Not sure if this is the issue, but I recall this from the manual.
"
accumulation
Input map,
> I believe that the flow accumulation grid was produced using ArcHydro. I put
> the link to the data set that I am using below if anyone wants to try it
> out.
Hi. Not sure if this is the issue, but I recall this from the manual.
"
accumulation
Input map, optional: Accumulation values of the pr
I also tried that by first setting the region equal to the elevation map and
then using r.mapcalc to create a new accumulation map. Both the elevation
and accumulation maps have the same spatial extent and resolution, but I
still get the error.
I believe that the flow accumulation grid was produce
On 06/27/2011 01:44 PM, jentjr wrote:
Thank you for the replies. I set the region to the flow accumulation map, and
I still received the error though. Here is the region output for both the
elevation and flow accumulation maps
Elevation:
GRASS 6.4.1 (NAD83_GRS80_LCC):~> g.region -p rast=elev_c
Thank you for the replies. I set the region to the flow accumulation map, and
I still received the error though. Here is the region output for both the
elevation and flow accumulation maps
Elevation:
GRASS 6.4.1 (NAD83_GRS80_LCC):~ > g.region -p rast=elev_cm@hydrology
projection: 99 (Lambert Con