[GRASS-user] v.to.rast question

Hamish hamish_b at yahoo.com
Wed Jun 10 23:24:56 EDT 2009

Anke Konrad wrote:
> I was wondering if anyone could enlighten me about how
> exactly the v.to.rast function works. I would like to turn a
> vector layer of polygons into a raster layer. Basically, my
> layer shows where a species occurs (the value for the areas
> where they occur is 1). When I transform this vector into a
> raster file, how does v.to.rast decide what raster cell
> becomes 1 versus which becomes a 0? Does it depend on what
> percentage of the raster cell is covered by the polygon, or
> does the cell get a 1 assigned to it as soon as the polygon
> transects it at all?

If I recall, that is explained in the help page for each type.
Feel free to point out the paragraph there that needs to be



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