Hi Martin, many thanks for your example. It works fine with two layer. But is there a way to add categories to a number of layers larger than two using the same vector map? Why is a full vector copy needed in case of category transfer from one to another layer?
Sorry for my noobish questions, but i just started to investigate the new shiny world of multiple layer usage. Best regards Soeren 2012/1/25 Martin Landa <landa.mar...@gmail.com>: > Hi, > > db.copy from_table=soil to_table=soil_2 > > -> makes copy of `soil` table > > v.db.addtable map=soil table=soil_2 layer=2 > > -> it would overwrite `soil_2` table, but do nothing in this case, no > feature have category defined in layer 2. > > Proposal: > > v.random --o -z seed=1 output=soil n=20 zmin=0 zmax=100 column=clay > v.category input=soil out=soil2 option=transfer layer=1,2 --o > db.copy from_table=soil to_table=soil_2 > v.db.connect map=soil2 table=soil_2 layer=2 > > v.db.addcolumn map=soil2 layer=1 columns='sand_frac DOUBLE PRECISION' > v.db.addcolumn map=soil2 layer=2 columns='sand_frac DOUBLE PRECISION' > ... > > Martin > > -- > Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
