Hi Rob,
you can try to do this with Processing framework. There is
at least three different providers that have watershed analysis
tools: GRASS, SAGA and TauDEM
2013/11/24 Rob Stewart :
> Hi,
> What's the best way to do a simple watershed analysis on a raster grid? I'm
> wanting to generate rain
Greetings, QGISers!
I don't know whether my subject header really describes what I want to
do (that's how much of a newbie I am). But let me try.
I have two polygon SHP layers that cover the same total area. Polygons
in the "voting unit" layer are smaller than those in the "census tract"
lay
On 11/24/2013 04:17 PM, Richard Duivenvoorde wrote:
On 24-11-13 21:30, Lee Hachadoorian wrote:
I was using `Vector → Analysis Tools → Points in polygon` to count
events in a hexgrid (created with MMQGIS). The point data came from a
PostGIS layer. The layer has a query restriction and the filter
On 24-11-13 21:30, Lee Hachadoorian wrote:
> I was using `Vector → Analysis Tools → Points in polygon` to count
> events in a hexgrid (created with MMQGIS). The point data came from a
> PostGIS layer. The layer has a query restriction and the filtered data
> set has ~230k points. When I run it, it
I was using `Vector → Analysis Tools → Points in polygon` to count
events in a hexgrid (created with MMQGIS). The point data came from a
PostGIS layer. The layer has a query restriction and the filtered data
set has ~230k points. When I run it, it just crashes (sometimes
immediately, sometimes
It isn't strictly true that you're crap out of luck--you just have to
download the mrsid API and register it with ldconfig. Depending on
your system, sometimes there are gdal plugins that you can then
install. This is how it is setup on Debian based systems. If there
isn't a plugin available, then
There isn't - Mr Sid and ECW are proprietary image formats. If you are
on a windows machine they get a separate library/file/gdal type plugin
and if you are on a linux machine your just crap outta luck. I've
actually been playing around with building sid support into gdal (which
is another long
Hello,
I am using Fedora 19 on a 32 bit machine. I had installed QGIS 1.8 and
the GDAL packages, but was not able to use .sid rasters from the
geospatial gateway that the feds run. I was getting an error message
saying that it was not a supported raster source when I tried to load
the file. Is
Hi,
What's the best way to do a simple watershed analysis on a raster grid?
I'm wanting to generate rainfall/runoff sub-catchment polygons.
Rob
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On 22/11/2013 18:48, image wrote:
@ Alex: Thank you for your help. I succeed in loading without any problem my
qgis project through qgis from my station hosting the postgrsql server.
But, as you say, i can't do it from another station. From other station,
the error mess
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