[GRASS-user] Snapping river segments

[Colin Nielsen]

I'm trying to extract only the largest rivers from a very detailed
hydrology map (mostly for display purposes). Right now the map just
looks black with lines. I've managed to use v.extract for areas but
since the rivers are in segments i can't use v.extract for lengths.
I've tried v.clean snap but it doesn't seem to be doing what I want it
to. Any advice?

-Colin