[Qgis-user] complete a polygon

[Bernhard Ströbl]

Hi,
hope I got you right.
Tick "avoid overlaps" in snapping options and generously digitize over 
the existing polygon. The two will have an identical boundary (same 
nodes) where they overlap.

Bernhard

Am 06.03.2014 11:05, schrieb SIT delle Riserve Naturali di Legambiente 
Sicilia:
> Hi,
> I have to add a new polygon to other existing; they have obviously
> common sides; how can I draw only sides not common?
> Thank you
>
> Tata Livreri
>



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