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List:       grass-stats
Subject:    Re: [GRASS-stats] creating a grid from a contour vector shape
From:       Markus Neteler <neteler () osgeo ! org>
Date:       2009-09-09 7:45:30
Message-ID: 86782b610909090045p239eefccp8084508db2b1a1ac () mail ! gmail ! com
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Hi Alexandre,

On Sat, Sep 5, 2009 at 10:29 PM, alexandre
villers<alexandre.villers@cebc.cnrs.fr> wrote:
> Good evening,
> 
> I'm a beginner with GRASS. In order to analyse a dataset on the spatial \
> distribution of a bird's species, I wanted to create many spatial grids (with \
> increasing cell size, from 500 to 15000 meters)and then count birds in each cell. 
> I started with
> v.in.ogr to import a countour shape file for my observation window
> v.to.rast (countour)followed by r.mask to limit the work on that contour limit
> finally, v.mkgrid to create the grid with the required spatial resolution.

> From your personal email I understand that "contours" are meant
here as boundaries of the study area.

Would this approach work?
http://grass.osgeo.org/wiki/Count_points_in_polygon

Best regards
Markus
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