[GRASS-user] Patching raster maps produced by r.reclass

[Jana K.]

Thanks a lot, Manfred,

It did solve the problem. I am quite new to grass so I've still a lot of
things to learn :-)

Jana


Dr. Manfred Redslob wrote:
> 
> Am Freitag, 11. Juli 2008 13:56 schrieb Jana K.:
>> I have 2 raster maps in the same papset. I needed to complement the null
>> values in the first map with values from the second. I used r.patch
>> input=map1,map2 output=map3. The resulting map3, however, is an empty
>> map.
>> Can the fact that map1 and map2 resulted from r.reclass procedures (the
>> original map on which reclass is based still exists) by the cause?
> 
> Hi Jana,
> 
> please check the actual region. If the region is outside from map1 ad map2
> it 
> must be a null-value map.
> 
> Try 
> g.region -p rast=map1
> 
> r.patch in=map1,map2 out=map3
> 
> Maby thats the problem,
> 
> Manfred
> 
>>
>> Thanks,
>>
>> Jana
> 
> -- 
> Dr. Manfred Redslob
> 
> GDF Hannover bR
> Gesellschaft fuer Datenanalyse und Fernerkundung
> Kontakt: redslob at gdf-hannover.de
> Internet: http://www.gdf-hannover.de
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> grass-user mailing list
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> 
> 

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