[GRASS-user] r.reclass null values

[Juan Miguel Garijo]

----- Mensaje original ----
De: António Rodrigues <agrodrigues at ipt.pt>
Para: grass-user at lists.osgeo.org
Enviado: martes, 22 de enero, 2008 2:22:10
Asunto: [GRASS-user] r.reclass null values

r.reclass null values


 
 




<Hi,


<I want to use r.cost to calculate accessibility surfaces based on an existing road network. In my cost surface, I want to associate a speed limit = <6kmh to every cell outside the network, which involves reclassifying all NULL values to 6. However. <r.reclass> doesn't allow me to reclass the <nulls. The following message appears:


<WARNING: can't have null on the left-hand side of the rule

<illegal reclass rule. ignored



<Any clues on how to do this? I couldn't find any offer function which would do the trick.


<Apologize if this is a "too simple" kind of question...
<Thanks in advance,
<António


r.null map=yourmap null=6

JM Garijo















       
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