[postgis-users] problem with 'sobel' & ST_MapAlgebraFctNgb

[Bborie Park]

Hey,

Your sobel function looks fine.  How you're calling it is incorrect
though.  You only have two function parameters defined in the
regprocedure argument of your ST_MapAlgebraFctNgb query.

-bborie



On 01/18/2013 03:10 PM, laurent wrote:
> Hello,
> 
> I would like apply a sobel filter to my raster DEM. In a 1st time, i defined
> the sobel function in a sql.file. 
> In a 2nd time, i tried to run the 'ST_MapAlgebraFctNgb'  via PSQL console
> available via pgadmin3.
> 
> When i run the query, i have an error message saying : The "Sobel(float []
> [], text []" does not exist. 
> 
> 
> I send you by attachment the 'sobel.sql' & the 'ST_MapAlgebraFctNgb' query. 
> 
> Could you throw light for me please? 
> 
> Regards. 
> 
> IMAGE. 
> 
> sobel.sql <http://postgis.17.n6.nabble.com/file/n5002352/sobel.sql>  
> Query_ST_MapAlgebraFctNgb.sql
> <http://postgis.17.n6.nabble.com/file/n5002352/Query_ST_MapAlgebraFctNgb.sql>  
> 
> 
> 
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-- 
Bborie Park
Programmer
Center for Vectorborne Diseases
UC Davis
530-752-8380
bkpark at ucdavis.edu