Hi Ulrich,
AFAIK the algorithm to calculate the hydrological distance is actually
r.stream.distance.
Hope this helps
Margherita
Date: Tue, 17 Nov 2009 10:52:45 +0100 From: Ulrich Leopold
ulrich.leop...@tudor.lu Subject: [GRASS-user] Spatial interpolation of
river network observations To:
I recall Hamish once released an interpolate with barriers code that I
believe it's in the addons.
Never used it myself but you should take a look
http://lists.osgeo.org/pipermail/grass-user/2008-February/043541.html
The screenshot is very neet and looks like what you want to do. Just
don't know
