1,897 reputation
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location Lisbon, Portugal
age 36
visits member for 3 years
seen Jul 18 at 10:32

Jul
20
answered How to create a polygon from other polygon boundaries?
Jul
20
comment How to redefine the nodata value into zero in QGIS?
Thank you simo!
Jul
20
answered How to redefine the nodata value into zero in QGIS?
Jul
20
asked How to redefine the nodata value into zero in QGIS?
Jul
20
comment Error when setting projection of a tif file in QGIS. Any ideas to solve this?
I was already using qgis 1.7 (love it too :))
Jul
18
awarded  Nice Question
Jul
18
asked Is there any 'Auto-complete polygon' tool in QGIS?
Jul
18
accepted How to delete fields in QGIS?
Jul
18
comment How to delete fields in QGIS?
Isn't it a bit annoying to have to install a plugin in order to delete fields? thanks
Jul
18
asked How to delete fields in QGIS?
Jul
15
accepted How to join external tables with a shapefile's attribute table in QGIS?
Jul
15
asked How to join external tables with a shapefile's attribute table in QGIS?
Jul
14
awarded  Tumbleweed
Jul
14
comment Clipping a raster using a polyline or polygon
only problem with this -cutline parameter is that the resulting raster comes with a mislocation of ~1 pixel...
Jul
14
accepted How to count pixels of a raster in polygons using QGIS?
Jul
14
comment How to count pixels of a raster in polygons using QGIS?
i don't think its limited to small rasters, check this: starspan.casil.ucdavis.edu/doku/doku.php?id=lfs. why not give it a try.
Jul
14
comment How to count pixels of a raster in polygons using QGIS?
This StarSpan only does this raster on vector analysis. Basicaly it strips the raster into a text/csv file where it includes also attributes from the coincident polygons. Then it has the ability to aggregate and produce statistics for the polygons. For example, polygon with id=1, avg_raster_value=4.5, mode_raste_value=4...and so on. Its very simple and works fine.
Jul
14
answered How to count pixels of a raster in polygons using QGIS?
Jul
14
answered Grass v.rast.stats returning null values
Jul
14
awarded  Commentator