[GRASS-user] Some question about r.in.xyz and r.surf.idw

[Alberto Pettazzi]

Hi John,

I had the same problem. As Hamish told me some weeks ago,

"r.surf.idw and r.surf.idw2 only produce CELL (integer) maps."


I solved my problem multiplying the input raster by 100 (r_bio in your case), then I interpolated with r.surf.idw and finally divided once again by 100.

Hope this may help you

Alberto Pettazzi


MeteoGalicia - Departamento de Climatología y Observación

Consellería de Medio Ambiente e Desenvolvemento Sostible

Rúa de Roma, 6

15707 Santiago de Compostela. A Coruña


Teléfono: +34-881-999646


e-mail: alberto.pettazzi at meteogalicia.es 
<mailto:alberto.pettazzi at meteogalicia.es>




Jhon Ortiz escribió:
>
> Hi all,
>
> Im working with xyz data, the range of my data is:    min = 0.046000  
> max = 1.358000
>
> And  I'm trying interpolate with r.surf.idw, but the answer is  "Range 
> of data:    min = 1  max = 1"
>
> I'm working with these steps:
>
> r.in.xyz input="biomarcadores.txt" output="r_bio" method="mean" 
> type="FCELL" fs="|" x=2 y=1 z=4 zscale=1.0  percent=100
>
> r.surf.idw input=r_bio output=r_sup_bio
>
> The problem is when I try work with decimal numbers.
>
>
> some advice about how I'll work with decimal numbers in this process?
>
> Thanks for your help!!
>
> John
> Grupo Bioestratigrafia - ICP
> Bogotá - Colombia
>
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