B) In case of a vector map without attached attribute table, first one row for
each category has to be generated. Then the new table can be populated with values
from the raster map query:
v.db.connect -p vectpoints
# .. no table yet.
echo 'create table vectpoints (cat integer, value integer)' | db.execute
#link new table to vector map:
v.db.connect table=vectpoints map=vectpoints
#generate rows for each category:
v.to.db map=vectpoints option=cat
#query raster map and write values into vector table:
v.what.rast vect=vectpoints rast=rastmap col=value
#verify uploaded values:
v.univar map=vectpoints col=value
Last changed: $Date: 2004/10/22 13:28:16 $