[GRASS-user] Calculating Azimuth of Stream Main Channel

GRASS GRASS user
1

Rich Shepard wrote:

I need the compass direction (azimuth) of the main channels in identified
sub-basins delineated by r.basin. I’ve looked at the list of vector and
raster modules (both regular and add-on) without seeing one that will
provide this output.

Is there a module that can take a basin’s mainchannel map and identify the
compass direction in which it flows?

Rich, maybe it’s too late, but you may try my script <v.ldm> (http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#v.ldm) to compute “Linear Directional Mean” of vector lines.

2

On Tue, 27 Nov 2012, Alexander Muriy wrote:

... but you may try my script <v.ldm>
(http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#v.ldm) to compute "Linear
Directional Mean" of vector lines.

Alexander,

   This is good to know.

Thanks,

Rich