[GRASSLIST:1503] Re: confining interpolation results

[Markus Neteler]

On Tue, Oct 14, 2003 at 02:12:43PM +0300, temiz wrote:
> Hello
> 
> I wonder why s.surf.rst gives results that don't fit original data.
> my site data range is from -1 to 1 (sin values ), while after 
> interpolation I get data between -2 and 2.
> (I would compute inv. sin of result data )
> 
> can anyone tell me how can I confine interpolation results between
> -1 and 1 ?

Suggestion:
Check the tension and smooth parameter and optimize it
http://grass.itc.it/gdp/html_grass5/html/s.surf.rst.html
-> "Tension and smoothing"
-> REFERENCES

Regards

Markus Neteler