[GRASS-dev] export vector file as multi-polygon from attribute column value

GRASS GIS GRASS GIS developer
1

Hi,

I have a vector with polygons having same attribute value and would like
export it as multi-polygon according to that attribute column.

v.out.ogr export -m but does not seem to actually do that.

any idea?
Yann

2

On 24/11/16 10:31, Yann Chemin wrote:

Hi,

I have a vector with polygons having same attribute value and would like
export it as multi-polygon according to that attribute column.

v.out.ogr export -m but does not seem to actually do that.

any idea?

Wild guess: aren't multipolygons defined based on common category value ? If yes, try v.reclass with your column as input and then v.out.ogr.

Moritz