On Sun, Aug 7, 2011 at 5:44 PM, Jarek Jasiewicz <[email protected]> wrote: > Layer 2 means addational attribute table > To automate basin analysis r.stream.basins allow to use stream id to find > outlet coordinates see documentation for details
Layer 2 does *not* mean an additional attribute table, that is a common misunderstanding. The stream vector produced by r.stream.extract has categories in layer 2 as described in the manual, but no attribute table for layer 2, only an attribute table for layer 1. You can add an attribute table to layer 2 with (replacing "mystreamvect" with the actual vector map name) STREAM_VECT="mystreamvect" v,db.addtable map=$STREAM_VECT layer=2 columns="cat integer,label varchar(20)" v.to.db map=$STREAM_VECT layer=2 type=point option=cat column=cat v.db.update map=$STREAM_VECT layer=2 column=label where="cat = 0" value='start' v.db.update map=$STREAM_VECT layer=2 column=label where="cat = 1" value='intermediate' v.db.update map=$STREAM_VECT layer=2 column=label where="cat = 2" value='outlet' HTH, Markus M > > On Aug 7, 2011 7:14 AM, "Rosca Bogdan" <[email protected]> wrote: >> Hi. I have tried to extract the outlets from stream vector obtained with >> r.stream.extract but I cannot find layer 2. In the plugin description it >> says that layer 2 contain the categories that I looking for. Please help, >> I >> need these outlets (or better the coordinates) in order to write a shell >> script for automatic analyses of some basins. >> Bogdan Rosca > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
