Ciao Elisa,
se ho capito bene la tua domanda, puoi usare il comando : Vector>Data Manag.
tools>Merge Shapefile to one.
<http://gfoss-geographic-free-and-open-source-software-italian-mailing.3056002.n2.nabble.com/file/n7594732/merge.jpg>
Nino
--
View this message in context: http://gfoss-geographic-free-and-open-source-software-italian-mailing.3056002.n2.nabble.com/sovrapposizione-delle-mappe-con-pesi-differenti-Qgis-tp7594730p7594732.html
Sent from the Gfoss -- Geographic Free and Open Source Software - Italian mailing list mailing list archive at Nabble.com.