[GRASS-user] orographic axis

Hi everybody,

I'm currently studying the geomorphometry of a basin and the knowledge of the
orographic axis is requested. What I would basically do on a topographic map
is to look for the highest points in the basin that would not necessary match
with the divide heights. Then I would draw the line that connects all these
points. Does anyone already encountered this kind of problem ? is there a kind
of script that can help with this?

Thanks

Matteo