[GRASS-user] lines and raster surface

[Malte Martin]

Hi and here's the second question,

I post it in two emails because I think it's easier to response to  
every separate email.

I got some vector lines (with z- values) and I got a raster surface. I  
need to know if the lines are above, intersecting or under the  
surface. Is it possible to that in GRASS? And if so, how is the trick?

Every help would be great!
Malte