[GRASS-user] How to get centroid coordinates

[Alexander Muriy]

Hi Margherita.

I have a vector of polygons and i want to create a vector of points with
> the centroids of the polygons, with a connected table showing their
> coordinates. Which is the simplest way to do that on G7?
>
>
In GRASS 6.4.*:
-- extract centroids from polygon map
v.extract in=poly out=centr type=centroid
-- if needed convert centroids to points
v.type in=centr out=centr_pts type=centroid,point
-- add attribute table to points
v.db.addtable centr_pts col="x double,y double,z double"
-- insert coords in table
v.to.db TMP_centr_pts option=coor col=x,y,z

I think in GRASS 7.0 it will be similar.
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