[GRASS-user] Determining area of poligon vector layer around circle of points in other vector layer

[Rainer M Krug]

Hi

I have two vector layers - one with polygons and one with points, both
in UTM 34 S.

Now I would like to calculate the area of the polygons in circles
around the points, i.e. how much area in a 500m circle around the
points is covered by the polygons, and store this in the attribute
table of the point layer.

Is there any easy way of achieving this? If I simply buffer the
points, the circles overlap sometimes and form one polygon, and I want
to have the results for each point - so that doesn't work.

Thanks

Rainer

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Plant Conservation Unit
Department of Botany
University of Cape Town
Rondebosch 7701
South Africa