Thanks for your help... unfortunately i am using the GUI and i must have an input for the 'nodes' section. my centre layer doesn't show up for inputting into this... so i think my point file requires some sort of pre-processing, but not sure...
if you try running the gui tool you will see what i mean... inputs required for arcs and nodes, but a standard grass pointfile does not show up in nodes dropdown box... -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Drivetime-Isochrones-tp6479604p6494579.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
