[GRASSLIST:2988] Re: Vector manipulation

[Andrea Aime]

Emmanuel Poizot wrote:
> 
> Hi,
> I'm a newbie in GRASS world.
> It sems that GRASS better manipulate raster data, however
> I should like to manipulate vector data, thinks that GRASS seems to do
> also.
> I've got some difficulties to find the operations that permits to
> display
> a vector with different colors for vectors that have a specific value on
> a field.

Have a look at d.vect.cats and d.area (the former should be 
present only in pre3). They're not easy to use but with some
patience you'll get the thematic maps you want.
Hope this helps

Best regards
Andrea Aime