[GRASS-user] Uploading bounding box of vectors to database?
hamish_b at yahoo.com
Tue Jan 5 16:38:53 EST 2010
Christian Kaiser wrote:
> I would like to do a very simple thing:
> upload the bounding box for each geometry (areas,
> boundaries, lines) to the attribute table.
> v.to.db does not seem to provide this functionality. Is
> there an elegant way for doing this?
'v.info -g' will give you the bounding box, easy peasy.
v.db.addcol $MAP column="north DOUBLE PRECISION, \
south DOUBLE PRECISION, east DOUBLE PRECISION, west DOUBLE PRECISION"
eval `v.info -g $MAP`
echo "UPDATE $MAP SET north = $north, south = $south, \
east = $east, west = $west" | db.execute
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