RE: [GRASS-user] Crop/limit a shapefile
It worked, thank you. > From: nete...@osgeo.org > Date: Tue, 27 Sep 2011 23:02:39 +0200 > Subject: Re: [GRASS-user] Crop/limit a shapefile > To: markus.metz.gisw...@googlemail.com > CC: grass-user@lists.osgeo.org > > On Tue, Sep 27, 2011 at 1:12 PM, Markus Metz > wrote: > > On Tue, Sep 27, 2011 at 1:08 PM, Micha Silver wrote: > >> On 27/09/2011 13:31, giannis Nj wrote: > >> > >> Hi, > >> > >> is it possible to crop a shapefile at some coordinates inside grass? > ... > > Or easier, set the cimputational region with e.g.: > > g.region -p e- w= n= s= > > > > then limit shapefile import to the current region: > > > > v.in.ogr -r ... > > Added as new FAQ: > http://grass.osgeo.org/wiki/Crop_a_shapefile_during_import > > Markus > ___ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Crop/limit a shapefile
On Tue, Sep 27, 2011 at 1:12 PM, Markus Metz wrote: > On Tue, Sep 27, 2011 at 1:08 PM, Micha Silver wrote: >> On 27/09/2011 13:31, giannis Nj wrote: >> >> Hi, >> >> is it possible to crop a shapefile at some coordinates inside grass? ... > Or easier, set the cimputational region with e.g.: > g.region -p e- w= n= s= > > then limit shapefile import to the current region: > > v.in.ogr -r ... Added as new FAQ: http://grass.osgeo.org/wiki/Crop_a_shapefile_during_import Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Crop/limit a shapefile
On Tue, Sep 27, 2011 at 1:08 PM, Micha Silver wrote: > On 27/09/2011 13:31, giannis Nj wrote: > > Hi, > > is it possible to crop a shapefile at some coordinates inside grass? I have > a bigger area than what i want and i must limit the boundaries of this in > some coordinates. If it isn't possible, any other program (open source of > course) to do this job and then import the limited file in grass? > > > In GRASS it can be done with 2 steps: > First set the current region to the boundaries of the smaller region with > g.region: > g.region -p e- w= n= s= > Now create a polygon of the region extents: > v.in.region out=small_region > and finally with v.overlay you can clip the original to the smaller region: > v.overlay ain= bin=small_region out=clipped_shape Or easier, set the cimputational region with e.g.: g.region -p e- w= n= s= then limit shapefile import to the current region: v.in.ogr -r ... Markus M ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Crop/limit a shapefile
On 27/09/2011 13:31, giannis Nj wrote: Hi, is it possible to crop a shapefile at some coordinates inside grass? I have a bigger area than what i want and i must limit the boundaries of this in some coordinates. If it isn't possible, any other program (open source of course) to do this job and then import the limited file in grass? In GRASS it can be done with 2 steps: First set the current region to the boundaries of the smaller region with g.region: g.region -p e- w= n= s= Now create a polygon of the region extents: v.in.region out=small_region and finally with v.overlay you can clip the original to the smaller region: v.overlay ain= bin=small_region out=clipped_shape There are tools in the QGIS Vector (fTools) plugin to do the same... This mail was received via Mail-SeCure System. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user This mail was received via Mail-SeCure System. ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
