On Tue, Oct 18, 2016 at 11:56 PM, alassane toure <[email protected]> wrote: > Anna, > I run the command you suggested and there is indeed a connection problem. > How do i fix it? Here are the commands i run in a grass/python script: > > criteria="(value=255) and (area_sf>"+sys.argv[5]+")" > grass.run_command('v.extract', input='imperv', > output='impervh_clean',type='area',where=criteria) > > Here is the command yielding the database connection error... > > grass.run_command('v.to.rast', input='impervh_clean', > output='impervh_clean1',use='attr',attribute_column='value') > > Any suggestion to establish db connection for vector map "impervh_clean"?
That's hard to say from this, check whether the v.extract gives any warning and if it extracts any features. > > Regards, > > Alassane > > > On Tue, Oct 18, 2016 at 11:29 PM, Anna Petrášová <[email protected]> > wrote: >> >> On Tue, Oct 18, 2016 at 11:21 PM, alassane toure <[email protected]> >> wrote: >> > Anna, >> > is that the command needed to make the connection? ... >> >> No, it just shows you the current connection, I was just trying to >> analyze the problem. >> >> >> > >> > db.connect driver=sqlite >> > database='$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db' >> > db.tables -p >> > v.db.connect map=vectormap table=table driver=sqlite \ >> > >> > database='$GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db' >> > v.db.connect -p map=vectormap >> > >> > >> > Thanks, >> > >> > Alassane >> > >> > >> > On Tue, Oct 18, 2016 at 9:46 PM, Anna Petrášová <[email protected]> >> > wrote: >> >> >> >> >> >> >> >> On Tue, Oct 18, 2016 at 9:31 PM, alassane toure <[email protected]> >> >> wrote: >> >>> >> >>> Group, >> >>> While executing v.to.rast the following error came up (not present in >> >>> earlier 7.0 version) >> >>> Your suggestion is appreciated. >> >> >> >> >> >> Check your database connection for the input vector, it says: >> >> "Database connection not defined for layer <1>" >> >> >> >> using v.db.connect -p vector_name >> >> >> >> Anna >> >> >> >>> >> >>> Thanks >> >>> Alassane >> >>> >> >>> _______________________________________________ >> >>> 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
