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

image lcelati at latitude-geosystems.com
Thu Dec 12 05:48:01 PST 2013


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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