[GRASS-user] Thiessen Polygons

[Glynn Clements]

Jan Hartmann wrote:

> > The problem with using r.cost is that you would need to know the cost
> > for each cell before you have created the polygons.
> >
> > I think that the simplest accurate approach would be to modify
> > r.grow.distance.
> 
> Do you mean: adding a metric parameter to Euclidean, Squared, Manhattan, 
> and Maximum? Something like: compute on the basis of the value of 
> traversed cells?

I mean scale the distance by the value of the nearest non-null cell.

-- 
Glynn Clements <glynn at gclements.plus.com>