[GRASSLIST:809] Re: Eliminating negative values on raster image

[Luca Casagrande]

Alle 21:34, venerdì 21 aprile 2006, Tim De Chant ha scritto:
> I have a raster map with negative values in it that I'd like to
> eliminate.  I know the values should not be negative, and I'd like to
> change any negative value to zero.  I have looked through the map
> calculator (r.mapcalc) to see if I could create an expression that
> would create such a map but haven't had any luck.  Could anyone help
> me out with writing one?  Thanks.

Build a query that gives 0 if value is < then 0?

Luca


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"E' molto più bello sapere qualcosa di tutto, che tutto di una cosa (Blaise 
Pascal)."

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