v.what.rast3 map=pnts raster3d=plume column=concentration
B) In case of a vector map without attached attribute table, first add
a new attribute table. This table is then populated with values
queried from the raster map:
# create new random 3d vector points map v.random -z output=pnts npoints=100 zmin=0 zmax=50 # add new table, link to map v.db.addtable map=pnts column="concentration double precision" # query raster map and upload values to vector table into specified column g.region raster3d=plume -p v.what.rast3 map=pnts raster3d=plume column=concentration # verify new attribute table: v.db.select map=pnts # verify statistics of uploaded values: v.univar map=pnts column=concentration type=point
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