ec.jkd, note: the new list address is <[email protected]>.
On Jan 2, 2008 6:57 AM, <[EMAIL PROTECTED]> wrote: > hi, > After executing the following steps for shortest path in grass i get below > error: > echo "update roads set travelcost=5 where cat=1" | db.execute > echo "update roads set travelcost=20 where cat=2" | db.execute > echo "update roads set travelcost=40 where cat=3" | db.execute > echo "update roads set travelcost=60 where cat=4" | db.execute > echo "update roads set travelcost=80 where cat=5" | db.execute > echo "select * from roads" | db.select > > Then we can run the 'd.path' with our assigned travel costs: > > d.path map=roads afcol=travelcost abcol=travelcost > > error:Building graph: > ERROR: Column type not supported what does v.info -c roads say? Which GRASS version do you use? Markus PS: please use a reasonable email subject instead of "grass" _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
