select ST_Clip(r.rast,p.geom) as rast from polygon p inner join raster r on ST_intersects(r.rast, p.geom)
This returns a raster which has all pixels inside the polygon On Thu, Feb 5, 2015 at 4:05 PM, Jean Marchal <jean.d.marc...@gmail.com> wrote: > Hi list, > > I am trying to return all the pixels in a raster that intersect (not just > touch) an extent (say a rectangle). I tried ST_Clip and > ST_Intersection(raster, geom) but they don't return all the pixels that > intersect my extent polygon. Do I have to vectorize the raster first using > ST_PixelAsPolygons or there is a better / more efficient way to proceed? > > Ultimately the goal is to fetch the resulting raster in R. > > Thanks, > > Jean > > _______________________________________________ > postgis-users mailing list > postgis-users@lists.osgeo.org > http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >
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