Re: [GRASS-user] Extract polygon in layer 1 with query on layer 2

2015-08-08 Thread Markus Neteler
On Mon, Jul 27, 2015 at 9:41 AM, Ing. Pierluigi De Rosa wrote: > Dear All, > > I have shapefile with many topology errors. Most of there are > overlapping area. > When I'm import in GRASS It create, for all overlapped areas a link in > layer 2 and in layer 1 it create two category for each centroi

[GRASS-user] Extract polygon in layer 1 with query on layer 2

2015-07-27 Thread Ing. Pierluigi De Rosa
Dear All, I have shapefile with many topology errors. Most of there are overlapping area. When I'm import in GRASS It create, for all overlapped areas a link in layer 2 and in layer 1 it create two category for each centroid. It is possible extract only areas where each centroid are linked to onl