Dear devs,

Recently, I was trying to generate a fixed number of random points per class in 
a vector or raster map.

So I looked at both v.random and r.random. However, neither seemed to give me 
the desired result:
v.random with restrict option seems to generate points per area even if areas 
belong to the same class and share the same cat value.
r.random does not have a restrict option.

So I ended up writing a small script that basically loops over the classes and 
extracts n points/pixels per class from a input raster map. My question now is 
did I overlook some less obvious feature of v.random or r.random?
If not I might create a small wrapper addon...

Cheers
Stefan
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