[GRASS-user] r.reclass null values

[António Rodrigues]

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
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