[GRASS-user] Problem with slope modeling .

[Radomir]

Dnia 25-03-2007, nie o godzinie 07:35 +0530, nishith datta napisał(a):
> hi Radomir,
> I found a nice write up on interpolation techniques GIS Ostrava
> 2006.htm. If you cant find let me know shall send you attachment.
> May be it will help you solve the problem.
> Keep us posted about the results and how you resolve the problem
> thanks
> nishith
> 
>  
> On 3/25/07, Radomir <dod.mort at gmail.com> wrote: 
>         Hi all,
>         I'm preparing the slope and elevation map from digitised
>         isolines.
>         I'm using v.surf.rst to do that with the following options:
>         
>         v.surf.rst input="izolinie_punkty" layer=1
>         zcolumn="wysokosc_m_npm"
>         dmax=3.174812 dmin=0.634962 elev="mapa_wystaw"
>         slope="mapa_spadk" 
>         maskmap="maska" zmult=1.0 tension=40. segmax=40 npmin=300
>         
>         The screenshot from small part of resulting map is here:
>         http://mort.no-ip.org/screen.png
>         
>         
>         On this screen you can see the valley in the center. I expect
>         that the
>         slope between two isolines on the bottom of the valley will be
>         similar.
>         But it is changing and gives an effect of "wave" between
>         isolines. Those 
>         "waves" cause the unexpected results in LS factor.
>         
>         I was trying to manipulate with the tension and smoothness but
>         without
>         visible results.
>         
>         What should I change to calculate better slope model?? Any
>         help with 
>         understanding will be appreciated.
>         
>         Best Regards,
>         Radomir
>         
>         
>         
>         --
>         Radomir
>         
>         ----
>         The Future Is Now ;)
>         
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> 

hi Nishit
Unfortunately I can't find the website from your link.
If you please send me again this link...
Best regards,
Radomir
-- 
Radomir 

----
The Future Is Now ;)