[Qgis-user] DEM values extraction
Dear users: Can someone give me a hint about how I can extract (using a polygon .shp) height values from a DEM and assigning zero or any codified value to the nodes located outside the polygon. Thanks in advance. Hernán ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] DEM values extraction
On 19/12/2012, at 21:19 , hersala wrote: Dear users: Can someone give me a hint about how I can extract (using a polygon .shp) height values from a DEM and assigning zero or any codified value to the nodes located outside the polygon. Thanks in advance. Hernán Could you clip the DEM to the polygon and then vectorise the result? Both should be in the raster menu. -ramon. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] DEM values extraction
Il 19/12/2012 14:19, hersala ha scritto: Dear users: Can someone give me a hint about how I can extract (using a polygon .shp) height values from a DEM and assigning zero or any codified value to the nodes located outside the polygon. Just use the optional plugin Point sampling tools. All the best. -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] DEM values extraction
On Wed, Dec 19, 2012 at 8:52 AM, Mark Seibel msei...@gmail.com wrote: On Wed, Dec 19, 2012 at 8:19 AM, hersala hers...@gmail.com wrote: Dear users: Can someone give me a hint about how I can extract (using a polygon .shp) height values from a DEM Hi. You can try this module. http://grass.osgeo.org/grass64/manuals/v.rast.stats.html Mark My bad. I thought it was the grass-user list. Need more coffee to wake up! Apologies Mark ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
