On Tue, Nov 22, 2011 at 9:27 AM, Joan <[email protected]> wrote: > Hi, > > How can I perform ST_MapAlgebraExpr with raster layers that have different > scale_x, scale_y. I suppose that the difference causes the two raster layers > to be aligned differently > Joan
Joan, You'll need to resample one of the rasters to be aligned with the other raster. Something like: ST_Resample(rast2, rast1) That'll resample rast2 to be aligned with rast1. So, you should be able to use that with ST_MapAlgebraExpr... ST_MapAlgebraExpr(rast1, ST_Resample(rast2, rast1), ...) -bborie -- Bborie Park Programmer Center for Vectorborne Diseases UC Davis 530-752-8380 [email protected] _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
