[GRASS-user] Further on Checking if a point (X, Y) is inside the, polygons of a shape file using command line

[Markus Neteler]

On Tue, Mar 4, 2008 at 12:00 PM, Corrado <ct529 at york.ac.uk> wrote:
> Dear John, Rick, Hamish,
>
> thanks for your kind answers.
>
> I explain the problem:
>
> I have a file with some hundreds of species and 58,000 observations. For each
> species, I have the coordinates (X,Y) of the sites where they were observed.
>
> I also have a shape file, with polygons representing conservation areas, like
> natural reserves.
>
> I need to know for each species, how many point fall inside conservation areas
> and how many points fall outside conservation areas.

(while digging around myself for a solution, I found one and thought to
post it here as  followup:)

http://grass.osgeo.org/wiki/Count_points_in_polygon

Perhaps helpful?

Markus