[GRASS-user] v.random, X points per category

[Johannes Radinger]

Hello,

I've got a rastermap (river-network) with differnent category values 
representing the single sections. Now I want to create points, excactly 
one point per section. I'd be best if the point is approximately in the 
middle of each the raster-line, but a random value would be already okay.
With v.random its possible to set the number of points which should be 
created, but is it somehow possible to tell GRASS GIS to create only one 
(random) point per raster category?

thanks
Johannes