[GRASS-user] change the precision of elevation data

[Balázs Szabó]

Thanks yours responses!

I have integer values instead float.
So I used tha command as Micha suggested
r.mapcalc 'ddm10_float = float(ddm)'


Balazs



2011. február 7. 14:28 Bödőcs András írta, <bodocs.andras at btk.elte.hu>:

> Hello Balázs,
>
> what is the raster base size setting of your region?
> maybe the cell size are too big for the 0.5m parameter.
>
>
> András
>
> 2011.02.07. 14:18:05 dátumon Balázs Szabó <szabobaa at gmail.com> írta:
>
>
> Hello list!
>
> I have 10x10 meter cell sized, 1 meter precision elevation data, but I have
> to create a contour map that features 0.5 meter steps
> hence the current level of precision is insufficient. Can I do this with
> grass gis?
>
> I tried the fallowing command, but I didnt get what I want, beacouse it
> create the .5 meter countours as the .0 meter countours 10 meter buffered
> line.
>
> r.contour input=ddm-10 output=contour_05 step=0.5 cut=0
>
> Thanks:
>
> Balázs
>
>
>
>
> --
>
> Bödőcs András, PhD
> ELTE Régészettudományi Intézet
> Térinformatika Labor
> ------------------------------
>
>
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