[GRASS-user] map algebra logical operators on DCELL rasters not admitted? maybe docs should outline it

[G. Allegri]

GRASS 6.4.4 on Windows.

giovanni
Il 19/ott/2015 17:52, "Paulo van Breugel" <p.vanbreugel at gmail.com> ha
scritto:

>
>
> On Mon, Oct 19, 2015 at 5:18 PM, G. Allegri <giohappy at gmail.com> wrote:
>
>> Doing a logical operation with a DCELL raster within an if(x,a) statement
>> produces an error: "Incorrect argument types to function bitand()".
>> This doesn't seem to be described inside the docs, is it?
>>
>
> That sounds like a bug to me. I just tried it out and it runs fine (using
> GRASS 7.1). What GRASS version are you using?
>
>
>>
>> When the if() function is described it only states its behaviour in case
>> of NULL, 0 or "otherwise" values.
>> It works correctly if the maps are CELL (i.e. e value not eqaul 0 is
>> treated correctly whatever it is) and it's quite confusing for users having
>> a different behaviour, and sepcifically an error, in case of floating point
>> rasters, don't you think?
>>
>> Regards,
>> giovanni
>>
>> --
>> Giovanni Allegri
>> http://about.me/giovanniallegri
>> Gis3W - http://gis3w.it
>> Ikare - http://ikare.it
>> Twitter: https://twitter.com/_giohappy_
>> blog: http://blog.spaziogis.it
>> GEO+ geomatica in Italia http://bit.ly/GEOplus
>>
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>
>
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