[GRASS-user] r.los

[Maciej Sieczka]

Michael Barton wrote:
> Thanks for the clarification. This is good to know. Any other options
> besides r.surf.contour?

I prefer r.surf.nnbathy, as I find natural neighbor or plain
triangulation most robust for interpolating contour lines. However,
these methods have their own problems - the output surface is not
smooth (only partly - in case on nat. neigh.), kidney shape contours
might be interpolated as plateus. But at least the result is
predictable. If I want it smoother, I filter the DEM afterwards.

But that's just me.

Maciek