[GRASS-user] Problem with v.vol.rst and 3d-interpolation

[Markus Neteler]

Christian Butzeck wrote:
> 
> Hello,
> 
> I ask Helena and she gave me the anwser. You have to use a parameter
> "zmult" with v.vol.rst (I try some values between 180 and 10 and choose
> zmult=50 for my question) . How to use "zmult" is not described in the
> help until now.
> 
> Regards.
> 

Hi,
it *is* explained:

g.manual v.vol.rst
"Parameters wmult and zmult allow user to re-scale the w-values and
z-coordinates of the point data (useful e.g. for transformation of
elevations given in feet to meters, so that the proper values of gradient
and curvatures can be computed)."

Cheers
Markus
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