[udig-users] buffering with uDig

[Jürgen Jacob <zoid.berg@xxxxxx>]

Dear all,
is it possible to use buffering in uDig to select features in a certain 
area?

I have  a shapefile that contains the districts of an european island. 
I'm interested in all areas that are at least 10km away from coastline. 
To do this:
1) create on large feature based on all other
2) buffering 10km from the edge of this feature (not buffering along the 
area of this feature: this would cover everything)
3) having the initial set of all features I must remove those of (2) and 
then just the inner ones (at least 10km away from coastline)

How can I do this?

Thank you,
Jürgen