[GRASSLIST:2522] finding nearest downstream node

GRASS GRASS user
1

Is there currently a function in the vector library for locating the nearest downstream (as in elevation) node on a stream network. I wanted to make sure before attempting to code one myself.

Thanks,
Chris
--
Christopher J. Fonnesbeck ( c h r i s @ f o n n e s b e c k . o r g )
Georgia Cooperative Fish & Wildlife Research Unit, University of Georgia

2

Is there currently a function in the vector library for locating the
nearest downstream (as in elevation) node on a stream network. I wanted
to make sure before attempting to code one myself.

You might look at d.rast.arrow as a starting point.

Hamish

3

On Feb 13, 2004, at 8:05 PM, Hamish wrote:

Is there currently a function in the vector library for locating the
nearest downstream (as in elevation) node on a stream network. I wanted
to make sure before attempting to code one myself.

You might look at d.rast.arrow as a starting point.

Looks interesting. However, I'm looking for something that works on the nodes of a vector stream layer, rather than using raster flow directions.

C.
--
Christopher J. Fonnesbeck ( c h r i s @ f o n n e s b e c k . o r g )
Georgia Cooperative Fish & Wildlife Research Unit, University of Georgia