Produces a new vector area file soil_groupa containing 'area' boundaries from soils with area category numbers of 1 thru 4; any common boundaries are dissolved, and all areas of the new map will be assigned category number 1.
Produces a new vector area file soil_groupa containing 'area' boundaries from soils with area category labels of Abc,Def1, 12A,WWd; these labels correspond to numbers 1 thru 4 of soils. Any common boundaries are dissolved, all areas of the new map will be retain their original category numbers 1 thru 4, in this case, since new was set to 0.
Produces a new vector area file soil_groupa containing 'area' boundaries from soils. No common boundaries are dissolved, all areas of the new map will be assigned category number 1.
Produces a new vector map with category label 1 if the SQL statement is fulfilled.
Last changed: $Date: 2005/02/13 22:38:03 $