On 06/16/2010 09:44 PM, nikos ves wrote:
On Wed, 2010-06-16 at 11:19 -0700, boesiii wrote:
How do I add the Raster tools? I don't have the Raster menu.
Raster tools will come as default with the next version of qgis which
will be out in a couple of months.
For now you can install the Raster tools, with the Plugin manager.
Search them under the name gdal tools or something similar. (try gdal or
raster, I dont remember atm)
You can also try a different approach. You mentioed that you already
have a raster of slopes and you want vector polygons (? is that your
goal?) covering everywhere with slope >40.
You can run the GRASS module r.mapcalculator, select the slope raster
for raster A then enter A>40 in the equation text box.
The result will be a raster of slopes, but only greater than 40.
Now do r.to.vect to convert to polygons...
--
Micha
--
Micha Silver
Arava Development Co. +972-52-3665918
http://surfaces.co.il
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