[GRASS-user] dissolve and multipolygon(1) convert polygon to points(centroid) (2)

Gabriele N. gis.gn at libero.it
Tue Mar 25 15:39:48 EDT 2008


Hello all.
I have two problems.

1) v.dissolve?
 it is possible to dissolve the polygons (nonadjacent) who have the same
attribute obtaining a multipolygon?

2) v.type 
I noticed that to get points (representing the centroid) from polygons must
change the order by hand ... type = point, centroid ..with.. type =
centroid, point. From GUI as you can get.

v.type input=comuni_intgis a sit output=centroidi a sit type=point,centroid
That exchange
 v.type input=comuni_intgis a sit output=centroidi a sit type=centroid,point

Thanks 
Gabriele

ubuntu 7.10 -grass6.3.ORC6

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