[GRASS-user] extract slope lower than 25 meters ?

[G. Allegri]

Hi,
generally we cinsider slope an angle measure. What do you mean with slope
under 25 meters?
In GRASS you can use r.slope.aspect to obtain the slope map.

This is the GRASS mailing list, not QGIS's. Anyway you can use many GRASS
commands through the GRASS plugin in QGIS. Within the Processing toolbox
look for "slope" keyword using the Filter tool at the top of the toolbox

giovanni
Il 03/apr/2015 09:46 "image93" <lcelati at cci-paris-idf.fr> ha scritto:

> Good morning, I have to extract slope lower than 25 meters. But i'm
> working with SRTM raster DEM 30 meters resolution... 1/ Is there a tool
> with qgis in order to extract slope values? 2/ According to you, is it
> possible to extract 25 meters slope values with srtm 30 meters. if it is
> not the case, do you know another way? Another DEM more acurate for
> instance? Thank you very much.
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