[Qgis-user] Extraction 3D vectors ridges/Thalweg from raster DEM ?

[G. Allegri]

For this kind of analysis toy should give a look to the algorithms provided
through Processing.
GRASS, SAGA and TauDEM have a lot of tools to do hydromorphological
analysis.

giovanni


2013/12/12 image <lcelati at latitude-geosystems.com>

> Dear all,
>
> From my Raster DEM, i would like extract Thalweg and Drainage divide
> (ridges) 's 3D vectors.
>
> According to you, is it possible to do that with qgis?
>
> In advance, Thank you.
>
> Regards.
>
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-- 
Giovanni Allegri
http://about.me/giovanniallegri
blog: http://blog.spaziogis.it
GEO+ geomatica in Italia http://bit.ly/GEOplus
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