Thanks. Does that create a new slope raster in the database? After refreshing there is nothing new.
2012/10/18 Bborie Park <bkp...@ucdavis.edu> > Pierre, > > The pixel type isn't 'Integer'. The list of valid pixel types are: > > 1BB - 1-bit boolean > > 2BUI - 2-bit unsigned integer > > 4BUI - 4-bit unsigned integer > > 8BSI - 8-bit signed integer > > 8BUI - 8-bit unsigned integer > > 16BSI - 16-bit signed integer > > 16BUI - 16-bit unsigned integer > > 32BSI - 32-bit signed integer > > 32BUI - 32-bit unsigned integer > > 32BF - 32-bit float > > 64BF - 64-bit float > > So, you'd call ST_Slope() with something like. > > SELECT ST_Slope(rast, 1, '32BUI') from Raster1; > > > -bborie > > On 10/18/2012 12:14 PM, Pierre LACROIX wrote: > > Hi, > > > > I would like to generate the slope from a DEM. > > The DEM is called Raster1. It has one band and holds integer values. > >>From the the SQL Editor (in the PG Admin) the following command displays > > values but does not generate an output slope raster: > > > > SELECT ST_Slope(rast, 1,'Integer') from Raster1; > > > > What is the syntax to generate the slope raster? > > > > Thanks in advance. > > > > Pierre > > > > > > > > _______________________________________________ > > postgis-users mailing list > > postgis-users@postgis.refractions.net > > http://postgis.refractions.net/mailman/listinfo/postgis-users > > > > -- > Bborie Park > Programmer > Center for Vectorborne Diseases > UC Davis > 530-752-8380 > bkp...@ucdavis.edu > _______________________________________________ > postgis-users mailing list > postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users >
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