Hello All,
I have used SAGA to generate channel networks and r.watershed to generate
catchment sub-basins from Copernicus 30 m DEM data to assist with planning a
stream sediment sampling program. Once samples are collected I would like to
generate polygons that define the upslope area for each
> I created a vector layer and I can show correctly a georeferenced pdf
> image.
> Then I added another transparent layer (vector layer) and I tried to
> add markers in lat,long points.
> Using QgsSimpleMarkerSymbolLayer I can inserted correctly all markers of
> the same shape and color. Then I
