[GRASS-user] Re: Define breaklines in DEM creation - r.surf.nnbathy

Maciej Sieczka msieczka at sieczka.org
Wed Dec 9 12:42:48 EST 2009


Luís Ferreira pisze:
> At page 235 from book "OPEN SOURCE GIS - A GRASS GIS Approach" 3rd 
> edition:
> 
> "Natural neighbor interpolation is implemented in addon module 
> r.surf.nnbathy. It uses “nn” – a natural neighbor interpolation 
> library and allows the user to define breaklines such as stream lines
>  or ridges as 2D lines without the need to define their elevation"

That's not possible. r.surf.nnbathy accepts only a single raster map as
input.

Maciek

-- 
Maciej Sieczka
http://www.sieczka.org


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