[GRASS-user] random vector points from raster count layer?

GRASS GRASS user
1

Hello,
I'm trying to display trees on my raster dem using v.trees3d and a raster layer which gives me the number of trees in every 400x400m cell. What I'm trying to do is create a point vector map that would have a random distribution of points in every 400x400m based on my volume of trees raster layer. Can anybody suggest how I would do this? I've been trying to use r.random but so far it's not generating what I want.

Appreciate any help.
Thanks!,
Ken

2

Ken:

I'm trying to display trees on my raster dem using
v.trees3d and a
raster layer which gives me the number of trees in every
400x400m cell.
What I'm trying to do is create a point vector map that
would have a
random distribution of points in every 400x400m based on my
volume of
trees raster layer. Can anybody suggest how I would do
this? I've been trying to use r.random but so far it's not
generating what I want.

maybe try v.mkgrid + v.random.cover (from wiki addons) in some sort of loop, once for each 400x400 grid block.
?

Hamish